NDLI: Efficient and durable oxygen reduction and evolution of a hydrothermally synthesized La(Co0.55Mn0.45)0.99O3−δ nanorod/graphene hybrid in alkaline media

Content Provider	Royal Society of Chemistry (RSC)
Author	Ge, Xiaoming Goh, F. W. Thomas Xiao, Peng Wang, Xin Hor, T. S. Andy Zhang, Jie Li, Bing Zong, Yun Liu, Zhaolin
Copyright Year	2015
Abstract	The increasing global energy demand and the depletion of fossil fuels have stimulated intense research on fuel cells and batteries. Oxygen electrocatalysis plays essential roles as the electrocatalytic reduction and evolution of di-oxygen are always the performance-limiting factors of these devices relying on oxygen electrochemistry. A novel perovskite with the formula La(Co0.55Mn0.45)0.99O3−δ (LCMO) is designed from molecular orbital principles. The hydrothermally synthesized LCMO nanorods have unique structural and chemical properties and possess high intrinsic activities for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The synergic covalent coupling between LCMO and NrGO enhances the bifunctional ORR and OER activities of the novel LCMO/NrGO hybrid catalyst. The ORR activity of LCMO/NrGO is comparable to the state-of-the-art Pt/C catalyst and its OER activity is competitive to the state-of-the-art Ir/C catalyst. LCMO/NrGO generally outperforms Pt/C and Ir/C with better bifunctional ORR and OER performance and operating durability. LCMO/NrGO represents a new class of low-cost, efficient and durable electrocatalysts for fuel cells, water electrolysers and batteries.
Starting Page	9046
Ending Page	9054
Page Count	9
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	7
Issue Number	19
Journal	Nanoscale
DOI	10.1039/c5nr01272d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Molecular orbital Perovskite Oxygen Fossil fuel Electrochemistry Redox Oxygen evolution Covalent bond LCMO Intrinsic activity
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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