Protein-Carbonized Engineering to Construct Three-Dimensional Sponge-like Carbons for Oxygen Reduction Electrocatalysis

Autor: Xinyi Luo, Yao Liu, Wenli Liao, Zhongbin Li, Chaozhong Guo, Wei Sun, Zhongli Luo
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Catalysts, Vol 13, Iss 1, p 166 (2023)
Druh dokumentu: article
ISSN: 13010166
2073-4344
DOI: 10.3390/catal13010166
Popis: The low specific surface area and insufficient exposure of active sites are usually the key reasons for the poor oxygen reduction reaction of catalysts. Here, we update a new method, using NaCl as a template, egg white as a carbon source and nitrogen source, adding FeCl3 as an iron source, and adopting a two-step pyrolysis method to synthesize a sponge-like porous Fe-N-C catalyst. This kind of three-dimensional sponge-like catalyst exhibits more defective structures, so it shows an excellent electrochemical performance with a half-wave potential of 0.73 V and onset potential of 0.88 V. Additionally, the catalyst has amazing stability, which proves that it is a promising candidate for green energy devices. Our research provides an innovative method to synthesize high-performance Fe-N-C catalysts using low-cost common biomaterials.
Databáze: Directory of Open Access Journals
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