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Flash-assisted doping graphene for ultrafast potassium transport 被引量:3
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作者 Yongzhi Zhang xianjue chen +8 位作者 Wanglai Cen Wenhao Ren Haocheng Guo Sicheng Wu Yang Xiao Sheng chen Yong Guo Dan Xiao Chuan Zhao 《Nano Research》 SCIE EI CSCD 2022年第5期4083-4090,共8页
Graphene has been widely used for electrical energy storage and its performances could be further improved by heteroatom doping.How to prepare doped graphene efficiently and economically remains a significant challeng... Graphene has been widely used for electrical energy storage and its performances could be further improved by heteroatom doping.How to prepare doped graphene efficiently and economically remains a significant challenge.Here,we propose a flash-assisted doping method to produce nitrogen-and sulfur-doped graphene(N-rGO and S-rGO).Using this method,graphene oxide(GO)is reduced to few-layer graphene(rGO)in seconds without the use of reductants,accompanied with a high doping efficiency.Particularly,the as-synthesized N-rGO with a high N content of 12.75 at.%used as potassium-ion battery(KIB)anode exhibits ultrafast K+-transport kinetics and superior K^(+)-storage capability.Quantitative kinetics analysis and theoretical simulation are used to reveal the mechanism of transportation and storage of K^(+)in N-rGO. 展开更多
关键词 GRAPHENE DOPING flash anodes potassium-ionbatteries
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