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Electrocatalytic water electrolysis, involving hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), two half-reactions, is an eco-friendly approach toward hydrogen production. In this work, needle-like Ru-Fe-Ni-P on NiFe foam is prepared through corrosive engineering and following a low-temperature phosphorization procedure for overall water-splitting. The as-designed Ru-Fe-Ni-P exhibits a porous needle-like structure, surface, and binder-free merits, and then can expose rich active sites, favor the transportation of mass/electron, and accelerate the reaction kinetics during catalytic process. Then, the synthesized Ru-Fe-Ni-P owns remarkable catalytic performance for HER, with 18 and 67 mV to reach 10 mA·cm−2 in alkaline and neutral media. Moreover, a low cell voltage of 1.51 V is required to produce a current of 10 mA·cm−2 in a two electrode electrolyzer with excellent stability. Interestingly, sustainable energies can power the electrolyzer effectively with abundant hydrogen generation.
The authors acknowledge funding support from the National Natural Science Foundation of China (Nos. 22002068, 21971132, 51772162, and 52072197), a project funded by China Postdoctoral Science Foundation (No. 2021M691700), Youth Innovation and Technology Foundation of Shandong Higher Education Institutions, China (No. 2019KJC004), Outstanding Youth Foundation of Shandong Province, China (No. ZR2019JQ14), Taishan Scholar Young Talent Program (No. tsqn201909114), Major Scientific and Technological Innovation Project (No. 2019JZZY020405), Major Basic Research Program of Natural Science Foundation of Shandong Province (No. ZR2020ZD09), the Natural Science Foundation of Shandong Province of China (Nos. ZR2019BB002 and ZR2018BB031), and Talent Foundation funded by Province and Ministry Co-construction Collaborative Innovation Center of Eco-chemical Engineering (No. STHGYX2202).