@article{b0e6d2da30854182a1023a57c9c48e9c,
title = "Highly efficient urea oxidation via nesting nano nickel oxide in eggshell membrane-derived carbon",
abstract = "Here, we reported a strategy of using an eggshell membrane to produce hierarchically porous carbon as a low-cost substrate for synthesizing a nano-nickel oxide catalyst (C@NiO), which can effectively turn biowaste—urea—into energy through an electrochemical approach. The interwoven carbon networks within NiO led to highly efficient urea oxidation due to the strong synergistic effect. The as-prepared electrode only needed 1.36 V versus reversible hydrogen electrode to realize a high efficiency of 10 mA cm–2 in 1.0 M KOH with 0.33 M urea and delivered an even higher current density of 25 mA cm–2 at 1.46 V, which is smaller than that of the porous carbon and commercial Pt/C catalyst. Benefiting from theoretical calculations, Ni(III) active species and the porous carbon further enabled the electrocatalyst to effectively inhibit the “CO2 poisoning” of electrocatalysts, as well as ensuring its superior performance for urea oxidation.",
keywords = "density functional theory, eggshell membrane, nickel oxide, porous carbon substrate, urea oxidation",
author = "Shun Lu and Matthew Hummel and Zhengrong Gu and Yucheng Wang and Keliang Wang and Rajesh Pathak and Yue Zhou and Hongxing Jia and Xueqiang Qi and Xianhui Zhao and Xu, {Ben Bin} and Terence Liu",
note = "Funding Information: This work is supported by NASA EPSCoR (no. NNX16AQ98A), NSF/EPSCoR (no. OIA-1849206), the U.K. Engineering Physics and Science Research Council (Grant No. EP/S032886/1), the Foundation and Frontier Research Project of Chongqing of China (cstc2018jcyjAX0513), and the Science and Technology Research Program of Chongqing Municipal Education Commission (KJQN201801125). In addition, S.L. thanks to Yuehui Wang{\textquoteright}s care during Shun{\textquoteright}s Ph.D. period. This manuscript has been authored in part by UT-Battelle, LLC, under contract DE-AC05-00OR22725 of the U.S. Department of Energy (DOE). The US Government retains—and the publisher, by accepting the article for publication, acknowledges that the US government retains—a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript or allow others to do so for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan ).",
year = "2021",
month = feb,
day = "1",
doi = "10.1021/acssuschemeng.0c07614",
language = "English",
volume = "9",
pages = "1703--1713",
journal = "ACS Sustainable Chemistry and Engineering",
issn = "2168-0485",
publisher = "American Chemical Society",
number = "4",
}