P‐Doped MoO2/Porous Ni Self‐Supported Catalyst for Electrocatalytic Hydrogen Evolution in Alkaline Solution.
Saved in:
| Title: | P‐Doped MoO |
|---|---|
| Authors: | Xu, Ziyi1 (AUTHOR), Teng, Xianggui1 (AUTHOR), Dou, Xiaoyi1 (AUTHOR), Wu, Yong1 (AUTHOR), Wei, Jinchao2 (AUTHOR), Chen, Qizhi3 (AUTHOR), Zhang, Jian4 (AUTHOR), Zeng, Julan1 (AUTHOR), Yu, Linping1 (AUTHOR) linping_yu@csust.edu.cn |
| Source: | Energy Technology. Nov2022, Vol. 10 Issue 11, p1-6. 6p. |
| Subject Terms: | Hydrogen evolution reactions, Alkaline solutions, Doping agents (Chemistry), Water electrolysis, Catalysts, Electric conductivity |
| Abstract: | Constructing integrated electrocatalysts free from binder is recognized as a promising approach to promote the long‐term efficiency of hydrogen evolution through water electrolysis. Herein, the in situ growth of MoO2 on a porous Ni substrate followed by phosphorus doping is reported to generate self‐supported P‐doped MoO2/porous Ni electrocatalyst for hydrogen evolution reaction. The porous Ni substrate provides a large specific surface area and highly accessible channels for accommodating the active nanoparticles, which achieves an ultralow overpotential of 81 mV at 10 mA cm−2, a small Tafel slope of 99 mV decade−1, and exceptionally high durability for 24 h. The excellent performance of P‐doped MoO2/porous Ni is mainly attributable to the efficient electrolyte diffusion, fast emission of gas bubbles, and enhanced electrical conductivity brought by porous Ni substrate and the highly active sites. This self‐supported catalyst is distinct and superior to the conventional powdery catalysts in developing new energy conversion technologies. [ABSTRACT FROM AUTHOR] |
| Copyright of Energy Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | Constructing integrated electrocatalysts free from binder is recognized as a promising approach to promote the long‐term efficiency of hydrogen evolution through water electrolysis. Herein, the in situ growth of MoO2 on a porous Ni substrate followed by phosphorus doping is reported to generate self‐supported P‐doped MoO2/porous Ni electrocatalyst for hydrogen evolution reaction. The porous Ni substrate provides a large specific surface area and highly accessible channels for accommodating the active nanoparticles, which achieves an ultralow overpotential of 81 mV at 10 mA cm−2, a small Tafel slope of 99 mV decade−1, and exceptionally high durability for 24 h. The excellent performance of P‐doped MoO2/porous Ni is mainly attributable to the efficient electrolyte diffusion, fast emission of gas bubbles, and enhanced electrical conductivity brought by porous Ni substrate and the highly active sites. This self‐supported catalyst is distinct and superior to the conventional powdery catalysts in developing new energy conversion technologies. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 21944288 |
| DOI: | 10.1002/ente.202200523 |
