Boosting the oxygen evolution electrocatalysis of high-entropy hydroxides by high-valence nickel species regulation
2022
Zhang, Tao | Meng, Yu-Lan | Zhao, Yu-Hang | Ni, Jing-Chang | Pan, Yu | Dai, Yan | Tan, Zhenquan | Wang, Xiao-Feng | Song, Xue-Zhi
The addition of an extra metal source induces the transformation from crystalline α-Ni(OH)₂ to an amorphous NiCoFeCrMo-based high-entropy hydroxide (HEH) and maximizes the high-valence Ni³⁺ content in HEH. For OER electrocatalysis, the quinary HEH possesses an overpotential of 292 mV at 10 mA cm⁻², a Tafel slope of 54.31 mV dec⁻¹ and the boosted intrinsic activity, surpassing other subsystems.
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书目信息
Chemical communications
卷
58
期
55
页码
7682-7685
- 7685
ISSN
1364-548X
出版者
The Royal Society of Chemistry
其它主题
Chemical communication; Oxygen production
语言
英语
类型
Journal Article; Text
2024-02-29
MODS