Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/162025
Title: Rational design of iron single atom anchored on nitrogen doped carbon as a high-performance electrocatalyst for all-solid-state flexible zinc-air batteries
Authors: Chen, Tian
Wu, Jun
Zhu, Chenyu
Liu, Zheng
Zhou, Wu
Zhu, Chao
Guan, Cao
Fang, Guojia
Keywords: Engineering::Materials
Issue Date: 2021
Source: Chen, T., Wu, J., Zhu, C., Liu, Z., Zhou, W., Zhu, C., Guan, C. & Fang, G. (2021). Rational design of iron single atom anchored on nitrogen doped carbon as a high-performance electrocatalyst for all-solid-state flexible zinc-air batteries. Chemical Engineering Journal, 405, 125956-. https://dx.doi.org/10.1016/j.cej.2020.125956
Journal: Chemical Engineering Journal
Abstract: Developing a cheap and high-efficiency oxygen reduction reaction (ORR) catalyst is vitally important for high-performance metal-air and full cell batteries. Non-noble iron-nitrogen-carbon materials (Fe-N-C) are reported with outstanding ORR property. However, most of them needs complex acid etching procedure during the fabrication process. Herein, we report a simple route to obtain a cost-effective Fe-N-C electrocatalyst via a facile two-step polymerization-pyrolysis process, and no acid etching is involved. Through a conjunction process of phthalocyanine iron (FePc) with polypyrrole (PPy) and a followed pyrolysis step, atomically evenly dispersed Fe-N-C species on nitrogen doped carbon can be easily obtained. Predictably, the obtained optimal catalyst delivers a half-wave potential of 0.83 V vs reversible hydrogen electrode (RHE) and better stability toward ORR test. Based on the optimal Fe single atomic catalyst as air cathode, an all-solid-state flexible Zn-air battery delivers a high open circuit voltage of 1.42 V, a high energy density of 833 Wh kg−1 and a high power density of 70 mW cm−2. The superior electrochemical energy storage properties demonstrated by the Fe-N-C electrocatalyst show a bright window for reasonable construction of cost-effective non-noble Fe single atom electrocatalysts for next-generation flexible energy storage devices.
URI: https://hdl.handle.net/10356/162025
ISSN: 1385-8947
DOI: 10.1016/j.cej.2020.125956
Rights: © 2020 Elsevier B.V. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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