Improving the sodiation performance of Na₂Ti₃O₇ through Nb-doping

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• 作者：Jizhang Chen^a ; ^{jizhang.chen@hotmail.com} ; Xiaoyan Zhou^a ; Changtong Mei^a ; Junling Xu^b ; Ching-Ping Wong^b ; ^c ; ^{cpwong@cuhk.edu.hk}
• 关键词：Na-ion batteries ; anode ; Na2Ti3O7 ; sodiation ; Nb-doping
• 刊名：Electrochimica Acta
• 出版年：2017
• 出版时间：10 January 2017
• 年：2017
• 卷：224
• 期：Complete
• 页码：446-451
• 全文大小：1897 K
• 卷排序：224

文摘

Na2Ti3O7 rods are fabricated and doped by Nb(V) by a one-step sol-gel method. The unit cell volume becomes larger and the band gap becomes lower after Nb-doping. The sodiation performance, especially rate capability, is improved after Nb-doping.