@article{Wu2022, 
author = {Xianli Wu and Guosheng Han and Hao Wen and Yanyan Liu and Lei Han and Xingyu Cui and Jiajing Kou and Baojun Li and Jianchun Jiang},
title = {Co2N Nanoparticles Anchored on N-Doped Active Carbon as Catalyst for Oxygen Reduction Reaction in Zinc–Air Battery},
year = {2022},
journal = {Energy & Environmental Materials},
volume = {5},
number = {3},
pages = {935-943},
keywords = {catalytically active carbon, Co2N nanoparticles, N-doping, oxygen reduction reaction, zinc–air battery},
url = {https://www.sciopen.com/article/10.1002/eem2.12216},
doi = {10.1002/eem2.12216},
abstract = {The development of efficient catalytic electrode toward oxygen reduction reaction (ORR) is still a great challenge for the wide use of zinc–air batteries. Herein, Co2N nanoparticles (NPs) anchored on N-doped carbon from cattail were verified with excellent catalytic performances for ORR. The onset and half-wave potentials over the optimal catalyst reach to 0.96 V and 0.84 V, respectively. Current retention rates of 96.8% after 22-h test and 98.8% after running 1600 s were obtained in 1 M methanol solution. Density functional theory simulation proposes an apparently increased electronic states of Co2N in N-doped carbon layer close to the Fermi level. Higher charge density, favorable adsorption, and charge transfer of intermediates originate from the coexistence of Co2N NPs and N atoms in carbon skeleton. The superior catalytic activity of composites also was confirmed in zinc–air batteries. This novel catalytic property and controllable preparation approach of Co2N-carbon composites provide a promising avenue to fabricate metal-containing catalytically active carbon from biomass.}
}