@article{Nan2024, 
author = {Jue Nan and Beirong Ye and Xun He and Chen Li and Wanli Zhang and Qian Liu and Luming Li and Wei Chu and Xuping Sun and Yongqi Zhang},
title = {Enhancing alkaline water oxidation with NiFe alloy-encapsulated nitrogen-doped vertical graphene array},
year = {2024},
journal = {Nano Research},
volume = {17},
number = {6},
pages = {4790-4796},
keywords = {density functional theory, electrocatalyst, oxygen evolution reaction, NiFe alloy, N-doped vertical graphene array},
url = {https://www.sciopen.com/article/10.1007/s12274-024-6431-x},
doi = {10.1007/s12274-024-6431-x},
abstract = {Advancing efficient and affordable electrocatalysts to boost the oxygen evolution reaction (OER) is pivotal for sustainable green hydrogen production. Herein, we propose the fabrication of nickel-iron alloy nanoparticles-encapsulated on N-doped vertically aligned graphene array on carbon cloth (NiFe@NVG/CC) as a highly active three-dimensional (3D) catalyst electrode for OER. In 1 M KOH, such NiFe@NVG/CC demonstrates outstanding catalytic performance, necessitating merely overpotential of 245 mV for achieving a current density of 10 mA·cm−2, a remarkably low Tafel slope of 36.2 mV·dec−1. Furthermore, density functional theory calculations validate that the incorporate of N species into graphene can reinforce the electrocatalytic activity though reducing the reaction energy barrier during the conversion of *O to *OOH intermediates. The outstanding performance and structural benefits of NiFe@NVG/CC offer valuable insights for the development of innovative and efficient electrocatalysts for water oxidation.}
}