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Research Article

Porous needle-like Fe-Ni-P doped with Ru as efficient electrocatalyst for hydrogen generation powered by sustainable energies

Yue Wang1,§, Zhi Chen1,§, Qichang Li1, Xinping Wang1, Weiping Xiao2, Yunlei Fu3, Guangrui Xu4, Bin Li4, Zhenjiang Li4, Zexing Wu1(), Lei Wang1,3()
Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
College of Science, Nanjing Forestry University, Nanjing 210037, China
Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266061, China

§ Yue Wang and Zhi Chen contributed equally to this work.

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The synthesized porous needle-like Ru-Fe-Ni-P presents excellent electrocatalytic performance for hydrogen evolution reaction (HER), with low overpotentials of 18 and 67 mV to drive 10 mA‧cm−2 in alkaline and neutral media, respectively, which can be powered by sustainable energies.

Abstract

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.

Keywords

metal phosphideneedle-like morphologyhydrogen generationoverall water splitting

Electronic Supplementary Material

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Nano Research
Volume 16 Issue 2,
February 2023
Pages 2428-2435
DOI: 10.1007/s12274-022-4980-4
Cite this article:
Wang Y, Chen Z, Li Q, et al. Porous needle-like Fe-Ni-P doped with Ru as efficient electrocatalyst for hydrogen generation powered by sustainable energies. Nano Research, 2023, 16(2): 2428-2435. https://doi.org/10.1007/s12274-022-4980-4
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