@article{Zhou2022, 
author = {Ya-Nan Zhou and Hai-Jun Liu and Zhuo-Ning Shi and Jian-Cheng Zhou and Bin Dong and Hui-Ying Zhao and Feng-Ge Wang and Jian-Feng Yu and Yong-Ming Chai},
title = {Microwave-assisted molybdenum-nickel alloy for efficient water electrolysis under large current density through spillover and Fe doping},
year = {2022},
journal = {Nano Research},
volume = {15},
number = {7},
pages = {5873-5883},
keywords = {overall water splitting, spillover, high-pressure microwave, Fe doping, MoNi4},
url = {https://www.sciopen.com/article/10.1007/s12274-022-4230-9},
doi = {10.1007/s12274-022-4230-9},
abstract = {The development of high-efficiency electrocatalysts for overall water splitting under large current density is significant and challenging. Herein, a high-performing Fe-doped MoNi alloy catalyst (M-H-MoNiFe-50) abundant with flower-like nanorods assemblies has been prepared by high-pressure microwave reaction and hydrogen reduction. Firstly, Fe doped NiMoO4 precursor (M-MoNiFe-50) was synthesized by microwave fast heating, ensuring the robustness of nanorods, which owns larger area and improved catalytic activity than that by conventional hydrothermal method. Secondly, M-MoNiFe-50 was reduced in H2/Ar to fabricate Fe-incorporated MoNi4 alloys (M-H-MoNiFe-50), greatly enhancing the conductivity and facilitating hydrogen/oxygen spillover. The final M-H-MoNiFe-50 exhibits remarkable activity for alkaline/acidic hydrogen evolution reaction and oxygen evolution reaction with low overpotential of 208 (alkaline), 254 (acid) and 347 mV at 1,000 mA·cm−2. Moreover, an alkaline water electrolyzer is established using M-H-MoNiFe-50 as anode and cathode, generating a current density of 100 mA·cm−2 at 1.58 V with encouraging durability of 50 h at 1,000 mA·cm−2. The extraordinary water splitting performance can be chalked up to the large surface area, favorable charge transfer, modified electron distribution, intrinsic robustness as well as an efficient gas spillover of M-H-MoNiFe-50. The final electrocatalyst has great prospects for practical application and confirms the significance of Fe doping, microwave method and spillover effect for catalytic performance improvement.}
}