期刊
ADVANCED ENERGY MATERIALS
卷 6, 期 2, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201501492
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资金
- National Basic Research Program of China [2012CB933402, 2013CB933001]
- National Natural Science Foundation of China [51433005]
The oxidation of water to produce oxygen gas is related to a variety of energy storage systems. Thus, the development of efficient, cheap, durable, and scalable electrocatalysts for oxygen evolution reaction (OER) is of great importance. Here, a high-performance OER catalyst, nitrogen and sulfur codoped graphite foam (NSGF) is reported. This NSGF is prepared from commercial graphite foil and directly applied as an electrocatalytic electrode without using a current collector and a polymeric binder. It exhibits an extremely low overpotential of 0.380 V to reach a current density of 10 mA cm(-2) and shows fast kinetics with a small Tafel slope of 96 mV dec(-1) in 0.1 M KOH. This electrocatalytic performance is superior or comparable to those of previously reported metal-free OER catalysts.
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