Single Nanobubble Formation on Au Nanoelectrodes and Au@WS₂ Nanoelectrodes: Voltammetric Analysis and Electrocatalysis

Authors

Xian-Zhun Luo, Anhui Province Key laboratory of biomedical materials and chemical measurement, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P.R. ChinaFollow
Xiao-Hu Chen, Anhui Province Key laboratory of biomedical materials and chemical measurement, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P.R. China
Yong-Xin Li, Anhui Province Key laboratory of biomedical materials and chemical measurement, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P.R. ChinaFollow

Corresponding Author

Yong-Xin Li(yongli@mail.ahnu.edu.cn)

Abstract

Taking advantage of the extremely small size of the gold nanodisk electrode, the single hydrogen nanobubble generated on the surface of the nanoelectrode was studied to evaluate its hydrogen evolution performance. It was found that compared with the bare gold nanodisk electrode, the bubble formation potential of the gold nanodisk electrode modified with tungsten disulfide quantum dots (WS₂ QDs) on the surface was more positive, indicating that its hydrogen evolution activity was higher. Microdynamic model analysis shows that the average standard rate constant of the rate-determining step of the hydrogen evolution reaction of gold nanoelectrodes modified with WS₂ QDs is approximately 12 times larger than that of gold nanoelectrodes. This work based on the formation of nanobubbles provides new ideas for the design and performance evaluation of hydrogen evolution reaction catalysts.

Graphical Abstract

Keywords

Nanoelectrode; Nanobubble; Electrocatalysis

DOI Link

https://doi.org/10.61558/2993-074X.3475

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Publication Date

2024-10-28

Online Available Date

2024-05-30

Revised Date

2024-05-19

Received Date

2024-04-09

Recommended Citation

Xian-Zhun Luo, Xiao-Hu Chen, Yong-Xin Li. Single Nanobubble Formation on Au Nanoelectrodes and Au@WS₂ Nanoelectrodes: Voltammetric Analysis and Electrocatalysis[J]. Journal of Electrochemistry, 2024 , 30(10): 2414001.
DOI: 10.61558/2993-074X.3475
Available at: https://jelectrochem.xmu.edu.cn/journal/vol30/iss10/1