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Despite the significant improvement of polymer electrolyte membrane fuel cell catalyst activities, a cost-effective and stable membrane electrode assembly is still lacking, which greatly inhibits the commercialization of this efficient and environmental friendly technology in stationary and transportation applications. The main reason is that the engineering of different components of an electrode,...
Na-ion battery is playing an important role as a low-cost alternative power source to Li-ion battery. Developing novel carbonaceous anode materials is highly demanded for high performance and environmental benignity. We report, for the first time, the graphene sheets covalently bonded with sulfur atoms as Na-ion battery anode material with a large reversible capacity of 291mAhg−1 and an outstanding...
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