Influence of Vanadium Doping on the Activity of Nanocomposite Electrocatalysts Based on Molybdenum Carbide and Reduced Graphene Oxide in the Process of Hydrogen Evolution from Water
D. O. Mazur, Ya. I. Kurys, V. G. Koshechko, V. D. Pokhodenko
{"title":"Influence of Vanadium Doping on the Activity of Nanocomposite Electrocatalysts Based on Molybdenum Carbide and Reduced Graphene Oxide in the Process of Hydrogen Evolution from Water","authors":"D. O. Mazur, Ya. I. Kurys, V. G. Koshechko, V. D. Pokhodenko","doi":"10.1007/s11237-022-09711-y","DOIUrl":null,"url":null,"abstract":"<div><div><p>It has been found that pyrolysis of hybrid precursors containing polypyrrole, H<sub>4</sub>PVMo<sub>11</sub>O<sub>40</sub>, and reduced graphene oxide (rGO) contributes to the production of nanocomposites based on V-doped Mo<sub>2</sub>C and N,P-doped rGO, which are promising electrocatalysts for hydrogen evolution reaction (HER). It has been shown that vanadium doping increases the activity of electrocatalysts in HER (both in acidic and alkaline electrolytes) when compared to the analog obtained by unsubstituted H<sub>3</sub>PMo<sub>12</sub>O<sub>40</sub>. In particular, it is manifested in a significant reduction of hydrogen evolution overpotential, anodic displacement of a process onset potential, and reduction of a Tafel slope dependence.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2022-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Theoretical and Experimental Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11237-022-09711-y","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
It has been found that pyrolysis of hybrid precursors containing polypyrrole, H4PVMo11O40, and reduced graphene oxide (rGO) contributes to the production of nanocomposites based on V-doped Mo2C and N,P-doped rGO, which are promising electrocatalysts for hydrogen evolution reaction (HER). It has been shown that vanadium doping increases the activity of electrocatalysts in HER (both in acidic and alkaline electrolytes) when compared to the analog obtained by unsubstituted H3PMo12O40. In particular, it is manifested in a significant reduction of hydrogen evolution overpotential, anodic displacement of a process onset potential, and reduction of a Tafel slope dependence.
期刊介绍：
Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as:
a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials;
b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions;
c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
