Template-free formation of carbon nanotube-supported cobalt sulfide@carbon hollow nanoparticles for stable and fast sodium ion storage

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• 作者：Fei Han^a ; ^b ; Clara Yi Jun Tan^b ; Zhiqiang Gao^b ; ^{chmgaoz@nus.edu.sg}
• 关键词：Cobalt sulfides ; Hollow nanoparticles ; Template-free method ; Synergistic effect ; Sodium-ion batteries
• 刊名：Journal of Power Sources
• 出版年：2017
• 出版时间：30 January 2017
• 年：2017
• 卷：339
• 期：Complete
• 页码：41-50
• 全文大小：3468 K
• 卷排序：339

文摘

CoS hollow nanoparticles are derived from a template-free method. The mechanism is due to “dissolution-recrystallization” and “Ostwald ripening”. This material exhibits superior sodium storage performance. The improvement is due to the 1D network, hollow nanostructure and surface coating. The synthetic strategy can motivate the preparation of other hollow nanostructures.