Highly durable and active Co₃O₄ nanocrystals supported on carbon nanotubes as bifunctional electrocatalysts in alkaline media

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• 作者：Shuai Zhao^a ; ^b ; Brian Rasimick^a ; William Mustain^b ; Hui Xu^a ; ^{hxu@ginerinc.com} ; ^{huixshu@gmail.com}
• 关键词：Oxygen reduction reaction ; Oxygen evolution reaction ; Alkaline media ; Hybrid structure ; Carbon nanotube
• 刊名：Applied Catalysis B: Environmental
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：203
• 期：Complete
• 页码：138-145
• 全文大小：3253 K
• 卷排序：203

文摘

A hybrid structure of Co­3O4 decorated on oxidized CNT is introduced and synthesis-property relationships are discussed. The hybrid nanomaterial shows excellent ORR and OER activities, compared with Pt/C and Ir, respectively. The hybrid structure exhibits great durability in voltage cycling test from 0.0 V to 1.9 V (vs. RHE) potential range, an extreme harsh condition. Post-treatment by ammonia reduction plays a key role for restoring the durability of the hybrid structure.