期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 605, 期 -, 页码 888-896出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2021.07.101
关键词
Bifunctional electrocatalyst; Oxygen evolution reaction; Hydrogen evolution reaction; Overall water splitting; Electrocatalysis
资金
- National Natural Science Foun-dation of China [21805245]
- National Students' Innovation and Entrepreneurship Training Program of Zhejiang Normal University [202110345033]
In order to enhance the overall water splitting efficiency, low-cost, abundant, and efficient bifunctional electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) are highly attractive yet challenging. The Fe,Rh-codoped Ni2P nanosheets arrays exhibited excellent catalytic performance for both OER and HER, with a small voltage of 1.62 V to drive a current density of 10 mA cm(-2) for overall water splitting. This work provides an alternative option for fabricating advanced catalysts in electrocatalysis and energy devices.
To enhance the overall water splitting efficiency, it is widely attractive yet challenging to develop low price, abundance and efficient bifunctional electrocatalysts towards oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Herein, Fe,Rh-codoped Ni2P nanosheets arrays were in situ anchored on three-dimension (3D) Ni foam under hydrothermal condition and successive phosphorization, denoted as Fe,Rh-Ni2P/NF for simplicity. The unique nanosheets arrays effectively enriched the active sites with easy accessibility. By virtue of the unique sheet-like arrays and 3D porous conductive substrate, the prepared Fe,Rh-Ni2P/NF showed the low overpotentials of 226 mV at 30 mA cm(-2) towards the OER and 73 mV at 10 mA cm(-2) for the HER. Moreover, the electrocatalyst effectively worked as anode and cathode for overall water splitting system, showing a small voltage of 1.62 V to drive a current density of 10 mA cm(-2). The present work provides alternative option for fabricating advanced catalysts in electrocatalysis and energy devices. (C) 2021 Elsevier Inc. All rights reserved.
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