@article{Yu2024, 
author = {Tianqi Yu and Kexin Tan and Jia Wu and Yongjin Zou and Shibin Yin},
title = {Bifunctional interstitial phosphorous doping strategy boosts platinum-zinc alloy for efficient ammonia oxidation reaction and hydrogen evolution reaction},
year = {2024},
journal = {Nano Research},
volume = {17},
number = {3},
pages = {1182-1189},
keywords = {PtZn alloy, phosphorous doping, ammonia oxidation reaction, hydrogen evolution reaction, bifunctional catalyst},
url = {https://www.sciopen.com/article/10.1007/s12274-023-5962-x},
doi = {10.1007/s12274-023-5962-x},
abstract = {It is still a lack of bifunctional catalysts for ammonia oxidation reaction (AOR) and hydrogen evolution reaction (HER) due to their different reaction mechanisms. In this work, P is doped into PtZn alloy by calcination with NaH2PO2 as P source to induce the lattice tensile strain of Pt and the electronic interaction between P and Zn, which optimizes the AOR and HER activity simultaneously. The sample with the optimal P content can drive the AOR peak current density of 293.6 mA·mgPt−1, which is almost 2.7 times of Pt. For HER, the overpotential at −10 mA·cm−2 is only 23 mV with Tafel slope of 34.1 mV·dec−1. Furthermore, only 0.59 V is needed to obtain 50 mA·mgPt−1 for ammonia electrolysis under a two-electrode system. Therefore, this work shows an ingenious method to design bifunctional catalysts for ammonia electrolysis.}
}