Atomically thin SiC nanoparticles obtained via ultrasonic treatment to realize enhanced catalytic activity for the oxygen reduction reaction in both alkaline and acidic media

Inorganic graphene analogues (IGAs) are promising catalysts for the oxygen reduction reaction (ORR) in fuel cells; however, their catalytic activities need to be improved. Herein, we report atomically thin SiC obtained via a simple ultrasonic treatment of commercial SiC as an efficient electrocataly...

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Bibliographic Details
Published inRSC advances Vol. 7; no. 37; pp. 22875 - 22881
Main Authors Guo, Jiahao, Song, Kaiyue, Wu, Bingbing, Zhu, Xiang, Zhang, Beilin, Shi, Yantao
Format Journal Article
LanguageEnglish
Published 01.01.2017
Subjects
Catalytic activity
Fuel cells
Graphene
Media
Methyl alcohol
Oxygen
Reduction
Ultrasonic treatment
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Summary:Inorganic graphene analogues (IGAs) are promising catalysts for the oxygen reduction reaction (ORR) in fuel cells; however, their catalytic activities need to be improved. Herein, we report atomically thin SiC obtained via a simple ultrasonic treatment of commercial SiC as an efficient electrocatalyst for the ORR in alkaline and acidic media. Due to the advantages of its unique surface composition and structure, the atomically thin SiC shows remarkable catalytic activity for the ORR and the number of electrons transferred per O 2 is close to four in both alkaline and acidic media. Compared with commercial Pt/C, the atomically thin SiC possesses prominent durability and tolerance to methanol crossover, and thus can be developed into a low-cost and efficient alternative as a cathodic electrode in fuel cells.
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ISSN:2046-2069
2046-2069
DOI:10.1039/C7RA01701D