NDLI: Graphene Quantum Dots Supported by Graphene Nanoribbons with Ultrahigh Electrocatalytic Performance for Oxygen Reduction.

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Graphene Quantum Dots Supported by Graphene Nanoribbons with Ultrahigh Electrocatalytic Performance for Oxygen Reduction.

Content Provider	Semantic Scholar
Author	Jin, Huile Huang, Huihui He, Yuhua Feng, Xin Wang, Shun Dai, Liming Wang, Jichang
Copyright Year	2015
Abstract	A new class of oxygen reduction reaction (ORR) catalysts based on graphene quantum dots (GQDs) supported by graphene nanoribbons (GNRs) has been developed through a one-step simultaneous reduction reaction, leading to ultrahigh performance for O reduction with an excellent electrocatalytic activity (higher limiting current density and lower overpotential than those of platinum) and high selectivity and stability in alkaline media comparable to the best C-based ORR catalysts reported so far. Electron microscopy revealed numerous surface/edge defects on the GQD/GNR surfaces and at their interface to act as the active sites. This, coupled with efficient charge transfer between the intimately contacted GQDs and GNRs, rationalized the observed ultrahigh electrocatalytic performance for the resultant GQD-GNR hybrids. Thus, this study opens a new direction for developing low-cost, highly efficient, C-based ORR electrocatalysts.
File Format	PDF HTM / HTML
DOI	10.1021/jacs.5b03799
PubMed reference number	26051597
Journal	Medline
Volume Number	137
Issue Number	24
Alternate Webpage(s)	http://case.edu/cse/eche/daigroup/Journal%20Articles/2015/Jin-2015.pdf
Journal	Journal of the American Chemical Society
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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