Rational design of RuCu(P<sub><i>x</i></sub>O<sub><i>y</i></sub>) nanosheets for synergistically enhanced hydrogen evolution reaction in alkaline medium
A robust catalyst of RuCu(P<sub><i>x</i></sub>O<sub><i>y</i></sub>) nanosheets is obtained by a simple hydrothermal method for alkaline HER. Structural analysis reveals that RuCu(P<sub><i>x</i></sub>O<sub><i>y</i></sub>) nanosheets are mainly composed of metallic Ru and amorphous Cu(P<sub><i>x</i></sub>O<sub><i>y</i></sub>), which can effectively accelerate electron transfer during the process of the HER. In alkaline electrolyte, the RuCu(P<sub><i>x</i></sub>O<sub><i>y</i></sub>) catalyst possesses a small overpotential of 67 mV (10 mA cm<sup>-2</sup>) and Tafel slope of 90 mV dec<sup>-1</sup>, which surpasses the Ru(P<sub><i>x</i></sub>O<sub><i>y</i></sub>), Cu(P<sub><i>x</i></sub>O<sub><i>y</i></sub>), and RuCu samples. In addition, such a catalyst for the HER can be extended to acidic media. This study is beneficial to the rational design of advanced efficient electrocatalysts for electrochemical HER in alkaline electrolytes.
Authors
- Xiao Liu (ORCID: https://orcid.org/0000-0003-3861-0579)
- Ruohan Huang
- Yuechang Wei (ORCID: https://orcid.org/0000-0002-1516-5778)
- Panpan Wang (ORCID: https://orcid.org/0000-0001-5990-1389)
- Zheng Tang (ORCID: https://orcid.org/0000-0003-0256-4494)
- Haiyan Pang (ORCID: https://orcid.org/0000-0001-9292-3782)
- Hongling Liu
Institutions
- Henan University (CN)
- China University of Petroleum, Beijing (CN)
- Zhengzhou University of Industrial Technology (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cc01466b
- Citations
- 2
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Henan Province