High-performance bi-functional electrocatalysts of 3D crumpled graphene–cobalt oxide nanohybrids for oxygen reduction and evolution reactions

High-performance bi-functional electrocatalysts of 3D crumpled graphene–cobalt oxide nanohybrids for oxygen reduction and evolution reactions

We report a high-performance bi-functional electrocatalyst composed of 3D crumpled graphene (CG)-cobalt oxide nanohybrids. This is the first report on using CG coupled with nanocrystals as both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) catalysts. The nitrogen-doped CG-CoO h...

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Veröffentlicht in:Energy & environmental science 2014, Vol.7 (2), p.609-616
Hauptverfasser: Mao, Shun, Wen, Zhenhai, Huang, Taizhong, Hou, Yang, Chen, Junhong
Format: Artikel
Sprache:eng
Schlagworte:
Electrocatalysts
Evolution
Graphene
Nanocomposites
Nanomaterials
Nanostructure
Oxides
Three dimensional
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Zusammenfassung:We report a high-performance bi-functional electrocatalyst composed of 3D crumpled graphene (CG)-cobalt oxide nanohybrids. This is the first report on using CG coupled with nanocrystals as both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) catalysts. The nitrogen-doped CG-CoO hybrid exhibits excellent catalytic activity and durability, making it a high-performance non-precious metal-based bi-functional catalyst for both ORR and OER.
ISSN:1754-5692
1754-5706
DOI:10.1039/c3ee42696c