CN115266858A - BDD nano array electrode based on MOFs derived carbon-based template and preparation method thereof - Google Patents
BDD nano array electrode based on MOFs derived carbon-based template and preparation method thereof Download PDFInfo
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- 239000012621 metal-organic framework Substances 0.000 title claims abstract description 80
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 22
- 239000010432 diamond Substances 0.000 claims abstract description 22
- 238000003491 array Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 26
- 238000005498 polishing Methods 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000000151 deposition Methods 0.000 claims description 12
- 239000013110 organic ligand Substances 0.000 claims description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 9
- QMKYBPDZANOJGF-UHFFFAOYSA-N benzene-1,3,5-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(C(O)=O)=C1 QMKYBPDZANOJGF-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000000197 pyrolysis Methods 0.000 claims description 8
- 238000011065 in-situ storage Methods 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 5
- 244000137852 Petrea volubilis Species 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 238000004050 hot filament vapor deposition Methods 0.000 claims description 5
- WXRGABKACDFXMG-UHFFFAOYSA-N trimethylborane Chemical compound CB(C)C WXRGABKACDFXMG-UHFFFAOYSA-N 0.000 claims description 5
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 5
- 239000012498 ultrapure water Substances 0.000 claims description 5
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 4
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 4
- 238000004729 solvothermal method Methods 0.000 claims description 4
- -1 transition metal salt Chemical class 0.000 claims description 4
- YSWBFLWKAIRHEI-UHFFFAOYSA-N 4,5-dimethyl-1h-imidazole Chemical compound CC=1N=CNC=1C YSWBFLWKAIRHEI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052723 transition metal Inorganic materials 0.000 claims description 3
- 150000001491 aromatic compounds Chemical class 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 13
- 150000002500 ions Chemical class 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 17
- 241000282414 Homo sapiens Species 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
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- 230000001105 regulatory effect Effects 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000011978 dissolution method Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003950 stripping voltammetry Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/42—Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte
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Abstract
The invention belongs to the technical field of heavy metal detection, and particularly relates to a BDD electrode and a preparation method thereof. A BDD nano array electrode based on an MOFs derived carbon-based template comprises a porous electrode substrate, an MOFs derived carbon-based array and a boron-doped diamond film from bottom to top in sequence; the boron-doped diamond film has a similar morphology to MOFs-derived carbon-based arrays. The BDD nano array electrode based on the MOFs derived carbon-based template greatly improves the specific surface area of the electrode and enhances the detection sensitivity of heavy metal ions; the MOFs derivative contains a graphene-like component, so that a carrier transmission path of the BDD can be optimized, and a faster signal response speed can be obtained.
Description
Technical Field
The invention belongs to the technical field of electrochemistry, and particularly relates to a BDD electrode for heavy metal detection and a preparation method thereof.
Background
In order to meet the social demands for industrialization, the mining, smelting, processing and related commercial production and manufacturing activities of human beings on heavy metals are increasing day by day, so that a large amount of heavy metals enter the environment in various compound forms, and serious heavy metal pollution is caused. As the most important natural fresh water supply source in the ecosystem, heavy metal pollution in rivers and lakes will inevitably cause ion enrichment in crops and aquatic organisms. Once entering human body through food chain, these highly toxic heavy metal ions can cause great damage to human health even in trace concentration. Therefore, the method develops high-sensitivity and high-accuracy detection of heavy metal ions in the aqueous mediumThe technology has important significance for guaranteeing the life safety of human beings. In recent years, boron-doped diamond (BDD) film is widely concerned as a novel green nontoxic heavy metal ion detection electrode, has a wider electrochemical window, lower background current and physical/chemical stability obviously higher than that of Hg electrode, and shows good practical application prospect. However, the sp of the BDD electrodes prepared by the prior art at present3 The carbon has a compact internal structure, relatively flat surface appearance and limited corresponding electroactive specific surface area, and cannot meet the requirements of higher response sensitivity and selectivity.
Disclosure of Invention
The invention aims to solve the problem that the specific surface area of the electrical activity of the existing BDD electrode is limited when the anode dissolution method is used for detecting trace heavy metal ions, and provides a preparation method of the BDD composite electrode with the MOFs-derived carbon-based template-induced nano array structure.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: a BDD nano array electrode based on MOFs derived carbon-based template comprises a porous electrode substrate, an MOFs derived carbon-based array and a boron-doped diamond film from bottom to top in sequence; the boron-doped diamond film has a similar form with MOFs derived carbon-based arrays.
Furthermore, the material of the porous electrode substrate is foamed nickel.
Further, the MOFs-derived carbon-based array is obtained by in-situ MOFs pyrolysis.
Further, the thickness of the MOFs-derived carbon-based array is about 5 μm.
Further, the thickness of the boron-doped diamond film is about 2 μm.
Further, the invention also provides a preparation method of the BDD nano array electrode based on the MOFs derived carbon-based template, which comprises the following steps:
(1) Pretreating the surface of the porous electrode substrate;
(2) Adopting a hydrothermal/solvothermal method, taking transition metal salt as a metal source and taking an aromatic carboxylic acid compound as an organic ligand, and growing an MOFs array on the surface of the porous electrode substrate in situ;
(3) Adopting a pyrolysis method to convert the MOFs array into a carbon-based template;
(4) And depositing a boron-doped diamond film on the MOFs derived carbon-based array by adopting a hot wire chemical vapor deposition method.
Further, in the step (1), the surface pretreatment comprises: cleaning the surface of the electrode substrate by adopting a method of firstly physically polishing and then chemically cleaning;
wherein, the physical polishing comprises the polishing of sand paper or polishing cloth; the chemical cleaning comprises ultrasonic cleaning of dilute hydrochloric acid aqueous solution, ultrapure water and absolute ethyl alcohol for 10 minutes respectively.
Further, in the step (2), the metal source is a transition metal salt, the organic ligand is an aromatic compound, and the molar ratio of the metal source to the organic ligand is 1:1.5 to 1, and the pH range of the system is 5.0 to 7.0; the reaction temperature range is 85-160 ℃.
Further, in the step (2), nickel nitrate is used as a metal source, and terephthalic acid is used as an organic ligand; or zinc nitrate is used as a metal source, and dimethyl imidazole is used as an organic ligand; or copper chloride is used as a metal source, and trimesic acid is used as an organic ligand.
Further, in the step (3), the MOFs array is pyrolyzed at 900 ℃ under the mixed atmosphere of argon and hydrogen, so that the MOFs array is converted into the porous carbon skeleton.
Further, in the step (4), methane, hydrogen, trimethyl borane, 15 hot wires, 250A of current and 3Kpa of deposition pressure are used for depositing the boron-doped diamond film.
Compared with the prior art, the BDD nano array electrode based on the MOFs derived carbon-based template and the preparation method thereof have the following beneficial effects:
1. the MOFs derivative takes carbon element as a core, is homologous with BDD, and is more favorable for the growth of a film compared with a metal substrate;
2. the MOFs derivative has certain flexibility, and can provide a buffer effect for the internal stress between thin film layers, so that the overall structure is more stable;
3. the MOFs derivatives are distributed on the surface of the substrate in an array form, so that a template effect is achieved on the growth of BDD, the final state film is complementary to the shape of the MOFs derivatives, the specific surface area of the electrode is greatly improved, and the detection sensitivity of heavy metal ions is enhanced;
4. the MOFs derivative contains a graphene-like component, so that a carrier transmission path of the BDD can be optimized, and a faster signal response speed can be obtained.
Drawings
FIG. 1 is a schematic structural diagram of a BDD nano-array electrode based on MOFs derived carbon-based template provided by the invention;
FIG. 2 is a three-dimensional model diagram of a BDD nano-array electrode based on MOFs-derived carbon-based template provided by the invention;
fig. 3 is a differential pulse stripping voltammetry curve of the BDD nanoarray electrode based on the MOFs-derived carbon-based template provided by the invention and the existing BBD electrode.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Embodiment 1 the invention provides a BDD nano-array electrode based on a MOFs-derived carbon-based template, which sequentially comprises an electrode porous substrate A, MOFs-derived carbon-based array B and a boron-doped diamond film C from bottom to top as shown in fig. 1. The arrangement of the MOFs-derived carbon-based array on the electrode porous substrate is shown in FIG. 2.
In the embodiment, the porous electrode substrate A is foamed nickel, the MOFs-derived carbon-based array B is obtained by in-situ MOFs pyrolysis, the thickness of the MOFs-derived carbon-based array B is about 5 micrometers, the boron-doped diamond film C has a similar form with the MOFs-derived carbon-based array B, and the thickness of the boron-doped diamond film C is about 2 micrometers.
Embodiment 2 this embodiment provides a method for preparing a BDD nanoarray electrode based on a MOFs-derived carbon-based template, which includes the following steps:
(1) Surface pretreatment of porous electrode substrates: and cleaning the surface of the porous electrode substrate by sequentially adopting a physical polishing method and a post-chemical cleaning method. The physical polishing comprises the polishing of sand paper and polishing cloth, and the chemical cleaning comprises the ultrasonic cleaning of dilute hydrochloric acid aqueous solution, ultrapure water and absolute ethyl alcohol for 10 minutes respectively.
(2) The MOFs array is grown in situ on the surface of the porous electrode substrate by adopting a hydrothermal/solvothermal method. Wherein the molar ratio of the zinc nitrate to the dimethyl imidazole is 1:4; the pH of the system is 5.0, and the reaction temperature is 85 ℃. The prepared MOFs array is shown as B in FIG. 1.
The specific structure of the MOFs array can be regulated and controlled by changing experimental parameters such as substrate and reactant types, solvent ratio, system pH, reaction temperature and the like.
(3) And (3) converting the MOFs array into a carbon-based template by adopting a pyrolysis method. The step is carried out in a tubular furnace, and the MOFs array prepared in the step (2) is pyrolyzed at 900 ℃ in a mixed atmosphere of argon and hydrogen to be converted into a porous carbon skeleton.
(4) Depositing a boron-doped diamond film on the MOFs-derived carbon-based array by adopting a hot wire chemical vapor deposition method, wherein the boron-doped diamond film is deposited by using methane, hydrogen, trimethyl borane, 15 hot wires and a current of 250A and a deposition pressure of 3 Kpa. The final prepared BDD nano-array electrode based on the MOFs derived carbon-based template is shown in figure 1.
Embodiment 3 this embodiment provides a method for preparing a BDD nanoarray electrode based on a MOFs-derived carbon-based template, which includes the following steps:
(1) Surface pretreatment of porous electrode substrates: and cleaning the surface of the porous electrode substrate by sequentially adopting a physical polishing method and a post-chemical cleaning method. The physical polishing comprises the polishing of sand paper and polishing cloth, and the chemical cleaning comprises the ultrasonic cleaning of dilute hydrochloric acid aqueous solution, ultrapure water and absolute ethyl alcohol for 10 minutes respectively.
(2) The MOFs array is grown in situ on the surface of the porous electrode substrate by adopting a hydrothermal/solvothermal method. Wherein the molar ratio of the nickel nitrate to the terephthalic acid is 1:2; the pH of the system was 5.5 and the reaction temperature was 120 ℃. The prepared MOFs array is shown as B in FIG. 1.
The specific structure of the MOFs array can be regulated and controlled by changing experimental parameters such as substrate and reactant types, solvent ratio, system pH, reaction temperature and the like.
(3) And (3) converting the MOFs array into a carbon-based template by adopting a pyrolysis method. The step is carried out in a tubular furnace, and the MOFs array prepared in the step (2) is pyrolyzed at 900 ℃ in a mixed atmosphere of argon and hydrogen to be converted into a porous carbon skeleton.
(4) Depositing a boron-doped diamond film on the MOFs-derived carbon-based array by adopting a hot wire chemical vapor deposition method, wherein the boron-doped diamond film is deposited by using methane, hydrogen, trimethyl borane, 15 hot wires and a current of 250A and a deposition pressure of 3 Kpa. The final prepared BDD nano-array electrode based on the MOFs derived carbon-based template is shown in figure 1.
Embodiment 4 this example provides a method for preparing a BDD nanoarray electrode based on a MOFs-derived carbon-based template, which includes the following steps:
(1) Surface pretreatment of porous electrode substrates: and cleaning the surface of the porous electrode substrate by sequentially adopting a physical polishing method and a post-chemical cleaning method. The physical polishing comprises the polishing of sand paper and polishing cloth, and the chemical cleaning comprises the ultrasonic cleaning of dilute hydrochloric acid aqueous solution, ultrapure water and absolute ethyl alcohol for 10 minutes respectively.
(2) In the embodiment, copper chloride is used as a metal source, trimesic acid is used as an organic ligand, and the MOFs array is synthesized under the hydrothermal/solvothermal condition. Wherein the molar ratio of the copper chloride to the trimesic acid is 1.5; the pH of the system was 7.0 and the reaction temperature was 160 ℃. The prepared MOFs array is shown as B in FIG. 1.
The specific structure of the MOFs array can be regulated and controlled by changing experimental parameters such as substrate and reactant types, solvent ratio, system pH, reaction temperature and the like.
(3) And (3) converting the MOFs array into a carbon-based template by adopting a pyrolysis method. The step is carried out in a tube furnace, and the MOFs array prepared in the step (2) is pyrolyzed at 900 ℃ in a mixed atmosphere of argon and hydrogen so as to be converted into a porous carbon skeleton.
(4) Depositing a boron-doped diamond film on the MOFs-derived carbon-based array by adopting a hot wire chemical vapor deposition method, wherein the boron-doped diamond film is deposited by using methane, hydrogen, trimethyl borane, 15 hot wires and a current of 250A and a deposition pressure of 3 Kpa. The final prepared BDD nano-array electrode based on the MOFs derived carbon-based template is shown in figure 1.
Example 5 tests were performed using the BDD nanoarray electrode based on the MOFs-derived carbon-based template provided by the present invention, and using a conventional BBD electrode as a comparative example, as shown in fig. 3, for a heavy metal ion (50 μ g L-1) of the same concentration, the electrode of the present invention showed a stronger dissolution current signal, which is derived from the special structure of the electrode of the present invention, such that the electroactive specific surface area is increased and the charge transport of the graphene-like component is enhanced.
Claims (10)
1. A BDD nanometer array electrode based on MOFs derived carbon-based template is characterized in that: the electrode sequentially comprises a porous electrode substrate, an MOFs derived carbon-based array and a boron-doped diamond film from bottom to top; the boron-doped diamond film has a similar morphology to MOFs-derived carbon-based arrays.
2. The MOFs-derived carbon-based template-based BDD nanoarray electrode of claim 1, wherein: the porous electrode substrate is foamed nickel.
3. The MOFs-derived carbon-based template-based BDD nanoarray electrode of claim 1, wherein: the MOFs derivative carbon-based array is obtained by in-situ MOFs pyrolysis.
4. The MOFs-derived carbon-based template-based BDD nanoarray electrode of claim 1, wherein: the thickness of the MOFs-derived carbon-based array is about 5 μm.
5. The MOFs-derived carbon-based template-based BDD nanoarray electrode of claim 1, wherein: the thickness of the boron-doped diamond film was about 2 μm.
6. A method for preparing a BDD nanoarray electrode based on MOFs-derived carbon-based templates according to any one of claims 1 to 5, comprising the following steps:
(1) Pretreating the surface of the porous electrode substrate;
(2) Adopting a hydrothermal/solvothermal method, taking transition metal salt as a metal source and an aromatic compound as an organic ligand, and growing an MOFs array on the surface of the porous electrode substrate in situ; wherein the molar ratio range of the metal source to the organic ligand is 1:1.5 to 1, and the pH range of the system is 5.0 to 7.0; the reaction temperature is 85-160 ℃;
(3) Adopting a pyrolysis method to convert the MOFs array into a porous carbon-based template;
(4) And depositing a boron-doped diamond film on the MOFs-derived carbon-based array by adopting a hot wire chemical vapor deposition method.
7. The method for preparing the BDD nano-array electrode based on the MOFs-derived carbon-based template, according to claim 6, wherein the step (1), the surface pretreatment comprises: cleaning the surface of the electrode substrate by adopting a method of firstly physically polishing and then chemically cleaning; wherein, the physical polishing comprises the polishing of sand paper or polishing cloth; the chemical cleaning comprises ultrasonic cleaning of dilute hydrochloric acid water solution, ultrapure water and absolute ethyl alcohol for 10 minutes respectively.
8. The preparation method of the BDD nano array electrode based on the MOFs-derived carbon-based template, according to claim 6, wherein in the step (2), nickel nitrate is used as a metal source, and terephthalic acid is used as an organic ligand; or zinc nitrate is used as a metal source, and dimethyl imidazole is used as an organic ligand; or copper chloride is used as a metal source, and trimesic acid is used as an organic ligand.
9. The method for preparing the BDD nano-array electrode based on the MOFs derived carbon-based template, according to the claim 6, wherein in the step (3), the MOFs array is pyrolyzed at 900 ℃ in a mixed atmosphere of argon and hydrogen to be converted into a porous carbon skeleton.
10. The method for preparing the BDD nano array electrode based on the MOFs-derived carbon-based template, according to the claim 6, wherein in the step (4), methane, hydrogen, trimethyl borane, 15 hot wires, a current of 250A, a deposition pressure of 3Kpa and a boron-doped diamond film are used for deposition.
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| CN102776510A (en) * | 2012-08-20 | 2012-11-14 | 上海交通大学 | Method for preparing diamond carbon membrane on stainless steel surface |
| US20130280611A1 (en) * | 2012-04-18 | 2013-10-24 | King Abdullah University Of Science And Technology | Electrode separator |
| CN106435518A (en) * | 2016-10-21 | 2017-02-22 | 中南大学 | High-specific-surface-area boron-doped diamond electrode and preparation method and application thereof |
| US20200048776A1 (en) * | 2016-10-21 | 2020-02-13 | Central South University | Boron doped diamond electrode and preparation method and applications thereof |
| JP2021137805A (en) * | 2020-03-06 | 2021-09-16 | 学校法人東邦大学 | Water treatment method and water treatment apparatus |
| WO2021228038A1 (en) * | 2020-05-11 | 2021-11-18 | 南京岱蒙特科技有限公司 | High-specific surface area and super-hydrophilic gradient boron-doped diamond electrode, preparation method therefor and application thereof |
| WO2021247013A1 (en) * | 2020-06-03 | 2021-12-09 | Ndb Inc. | High porosity metal organic framework coated with activated carbon nano-onion for an electrode |
| US20220187197A1 (en) * | 2020-12-16 | 2022-06-16 | Hach Company | Electrochemical digestion |
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- 2022-06-28 CN CN202210739565.6A patent/CN115266858A/en not_active Withdrawn
Patent Citations (8)
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|---|---|---|---|---|
| US20130280611A1 (en) * | 2012-04-18 | 2013-10-24 | King Abdullah University Of Science And Technology | Electrode separator |
| CN102776510A (en) * | 2012-08-20 | 2012-11-14 | 上海交通大学 | Method for preparing diamond carbon membrane on stainless steel surface |
| CN106435518A (en) * | 2016-10-21 | 2017-02-22 | 中南大学 | High-specific-surface-area boron-doped diamond electrode and preparation method and application thereof |
| US20200048776A1 (en) * | 2016-10-21 | 2020-02-13 | Central South University | Boron doped diamond electrode and preparation method and applications thereof |
| JP2021137805A (en) * | 2020-03-06 | 2021-09-16 | 学校法人東邦大学 | Water treatment method and water treatment apparatus |
| WO2021228038A1 (en) * | 2020-05-11 | 2021-11-18 | 南京岱蒙特科技有限公司 | High-specific surface area and super-hydrophilic gradient boron-doped diamond electrode, preparation method therefor and application thereof |
| WO2021247013A1 (en) * | 2020-06-03 | 2021-12-09 | Ndb Inc. | High porosity metal organic framework coated with activated carbon nano-onion for an electrode |
| US20220187197A1 (en) * | 2020-12-16 | 2022-06-16 | Hach Company | Electrochemical digestion |
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Application publication date: 20221101 |