Electrochemical Preparation of Nanocatalysts and Their Application in Electrocatalysis
In order to solve the basic problem of high-temperature sintering of molybdenum carbide restricting the efficient construction of molybdenum carbide nanostructures and the full play of hydrogen evolution performance, this article studies the preparation of nano molybdenum carbide/boron nitrogen codo...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | International Journal of Analytical Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2022/9884302 |
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| author | Hao Zhou |
| author_facet | Hao Zhou |
| author_sort | Hao Zhou |
| collection | DOAJ |
| description | In order to solve the basic problem of high-temperature sintering of molybdenum carbide restricting the efficient construction of molybdenum carbide nanostructures and the full play of hydrogen evolution performance, this article studies the preparation of nano molybdenum carbide/boron nitrogen codoped two-dimensional carbon composite structure catalysts and the electrochemical hydrogen evolution reaction performance. Based on the self-assembly process of gelatin molecules on the surface of a two-dimensional layered boric acid crystal template, a new strategy for constructing a high-performance electrochemical hydrogen evolution reaction catalyst based on molybdenum carbide/boron nitrogen codoped two-dimensional nanocarbon composite structure (η-MoC@ BN-CSs) was established. The experimental results show that the overpotential of hydrogen evolution reaction based on molybdenum carbide/boron nitrogen codoped two-dimensional nanocarbon composite structure catalyst is 159 mV, which is slightly higher than 67 mV of commercial Pt/C catalyst, but lower than the reported literature value in the list. The Tafel slope is 68 mV·dec−1, which is slightly higher than that of the commercial Pt/C catalyst (40 mV·dec−1) and the reference value (58 mV·dec−1), but lower than those of other reported literature values in the list, indicating that the molybdenum carbide/boron nitrogen codoped two-dimensional carbon nanocomposites have excellent catalytic performance under alkaline conditions. Conclusion. This kind of two-dimensional nanocomposite structure shows platinum-like catalytic activity when used as an electrochemical hydrogen evolution catalyst in alkaline electrolyte. It has better reaction kinetics and better stability. |
| format | Article |
| id | doaj-art-b9b4e8313d9740c9b6f7576b9e62d96f |
| institution | OA Journals |
| issn | 1687-8779 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Analytical Chemistry |
| spelling | doaj-art-b9b4e8313d9740c9b6f7576b9e62d96f2025-08-20T02:23:15ZengWileyInternational Journal of Analytical Chemistry1687-87792022-01-01202210.1155/2022/9884302Electrochemical Preparation of Nanocatalysts and Their Application in ElectrocatalysisHao Zhou0JiangSu Vocational College of BusinessIn order to solve the basic problem of high-temperature sintering of molybdenum carbide restricting the efficient construction of molybdenum carbide nanostructures and the full play of hydrogen evolution performance, this article studies the preparation of nano molybdenum carbide/boron nitrogen codoped two-dimensional carbon composite structure catalysts and the electrochemical hydrogen evolution reaction performance. Based on the self-assembly process of gelatin molecules on the surface of a two-dimensional layered boric acid crystal template, a new strategy for constructing a high-performance electrochemical hydrogen evolution reaction catalyst based on molybdenum carbide/boron nitrogen codoped two-dimensional nanocarbon composite structure (η-MoC@ BN-CSs) was established. The experimental results show that the overpotential of hydrogen evolution reaction based on molybdenum carbide/boron nitrogen codoped two-dimensional nanocarbon composite structure catalyst is 159 mV, which is slightly higher than 67 mV of commercial Pt/C catalyst, but lower than the reported literature value in the list. The Tafel slope is 68 mV·dec−1, which is slightly higher than that of the commercial Pt/C catalyst (40 mV·dec−1) and the reference value (58 mV·dec−1), but lower than those of other reported literature values in the list, indicating that the molybdenum carbide/boron nitrogen codoped two-dimensional carbon nanocomposites have excellent catalytic performance under alkaline conditions. Conclusion. This kind of two-dimensional nanocomposite structure shows platinum-like catalytic activity when used as an electrochemical hydrogen evolution catalyst in alkaline electrolyte. It has better reaction kinetics and better stability.http://dx.doi.org/10.1155/2022/9884302 |
| spellingShingle | Hao Zhou Electrochemical Preparation of Nanocatalysts and Their Application in Electrocatalysis International Journal of Analytical Chemistry |
| title | Electrochemical Preparation of Nanocatalysts and Their Application in Electrocatalysis |
| title_full | Electrochemical Preparation of Nanocatalysts and Their Application in Electrocatalysis |
| title_fullStr | Electrochemical Preparation of Nanocatalysts and Their Application in Electrocatalysis |
| title_full_unstemmed | Electrochemical Preparation of Nanocatalysts and Their Application in Electrocatalysis |
| title_short | Electrochemical Preparation of Nanocatalysts and Their Application in Electrocatalysis |
| title_sort | electrochemical preparation of nanocatalysts and their application in electrocatalysis |
| url | http://dx.doi.org/10.1155/2022/9884302 |
| work_keys_str_mv | AT haozhou electrochemicalpreparationofnanocatalystsandtheirapplicationinelectrocatalysis |