@article{Liu2018, 
author = {Guang Liu and Dongying He and Rui Yao and Yong Zhao and Jinping Li},
title = {Amorphous NiFeB nanoparticles realizing highly active and stable oxygen evolving reaction for water splitting},
year = {2018},
journal = {Nano Research},
volume = {11},
number = {3},
pages = {1664-1675},
keywords = {amorphous, NiFeB, electrocatalyst, oxygen evolving reaction, water splitting},
url = {https://www.sciopen.com/article/10.1007/s12274-017-1783-0},
doi = {10.1007/s12274-017-1783-0},
abstract = {The development of highly efficient and inexpensive catalysts for oxygen evolving reactions (OERs) is extremely urgent for promoting the overall efficiency of water splitting. Herein we report the fabrication of a series of amorphous NiFeB nanoparticles with varying atomic ratios of Fe to (Ni + Fe) (χFe) by a facile chemical-reduction method. The amorphous NiFeB (χFe = 0.20) nanoparticles, combining the merits of in situ formation of borate-enriched NiFeOOH catalytic surface layers, intrinsic amorphous nanostructures, and an optimized degree of Fe doping, displayed highly active electrocatalytic performance towards the OER in a broad range of pH values (from alkaline to neutral conditions). The catalyst exhibited a relatively low overpotential of 216 mV with a Tafel slope of 40 mV/dec on Ni foam and 251 mV with a Tafel slope of 43 mV/dec on glassy carbon at 10 mA/cm2 in a 1 M KOH solution, demonstrating much greater OER efficiency than that of commercial RuO2. Long-term stability testing of the OER performance of NiFeB (χFe = 0.20) by chronoamperometry (overpotential (η) = 320 mV) over 200 h revealed no evidence of degradation. Facile, scalable synthesis and highly active water oxidation make the NiFeB nanoparticles very attractive for OER electrocatalysis.}
}