Journal
RARE METALS
Volume 41, Issue 9, Pages 3069-3077Publisher
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-022-02006-0
Keywords
Electrocatalysts; Overall water splitting; MnCoP/NF; Electrodeposition
Funding
- National Natural Science Foundation of China [21606115, 21776119]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [2021XKT1225]
- Xuzhou Science and Technology Plan Project [KC20195]
- 100 innovative talent introduction projects in Hunan Province
Ask authors/readers for more resources
This study presents the synthesis of a highly efficient and long-term stable oxygen evolution reaction (OER) electrocatalyst MnCoP/NF. The catalyst exhibited superior electrocatalytic activity and electrochemical stability, and showed potential for application in overall water splitting.
Seeking highly active, stable and low-cost electrocatalysts used as both cathode and anode in overall water splitting is very crucial for the sustainable utilization of resources. Herein, a highly efficient and long-term stable oxygen evolution reaction (OER) electrocatalyst Mn-doped CoP on foam Ni (MnCoP/NF) is synthesized by the one-step electrodeposition method. Owing to the synergetic effect among the Sepaktakraw-like morphology, the doped Mn element and the binder-free synthesis method, MnCoP/NF displays superior electrocatalytic activity and electrochemical stability toward OER. MnCoP/NF only requires an overpotential of 266 mV to deliver the current density of 10 mA.cm(-2), demonstrating an excellent electrocatalytic activity even better than that of commercial catalysts of IrO2/NF. And the retention rate of potential can still be maintained at 99.57% after the durability test as long as 240 h, indicating the prominent electrochemical stability of MnCoP/NF. Simultaneously, MnCoP/NF could be directly used as both cathode and anode in the two-electrode system for overall water splitting, exhibiting a low potential of 1.97 V for reaching 100 mA.cm(-2). Impressive long-term stability of MnCoP/NF is also observed by limited activity decay after 240-h durability tests at 10 and 100 mA.cm(-2). Thus, this study illustrates a feasible approach to the rational design of highly active and stable electrocatalyst and also provides valuable insights on the improved electrocatalytic performance of water splitting by Mn doping.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available