Ti3C2 MXene-Derived Sodium/Potassium Titanate Nanoribbons for High-Performance Sodium/Potassium Ion Batteries with Enhanced Capacities
Ti3C2 MXene-Derived Sodium/Potassium Titanate Nanoribbons for High-Performance Sodium/Potassium Ion Batteries with Enhanced Capacities
复制标题
Ti3C2 MXene 衍生的钛酸钠/钛酸钾纳米带，用于具有增强容量的高性能钠/钾离子电池
DOI：
10.1021/acsnano.7b01165
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发表时间：
2017-05-01
期刊：
影响因子：
17.1
通讯作者：
Bao, Xinhe
中科院分区：
文献类型：
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作者：
Dong, Yanfeng;Wu, Zhong-Shuai;Bao, Xinhe
钠和钾离子电池因其丰富的储量和低成本而有望成为下一代储能系统，但在实际应用的最佳电极材料方面面临着巨大的挑战。在这里，通过Ti3C2 MXene的同时氧化和碱化过程，成功地合成了钛酸钠(M-NTO，NaTi1.5O8.3)和钛酸钾(M-KTO，K2Ti4O9)的超薄纳米带。得益于合适的层间距(M-NTO为0.90 nm，M-KTO为0.93 nm)，超薄(
Sodium and potassium ion batteries hold promise for next-generation energy storage systems due to their rich abundance and low cost, but are facing great challenges in optimum electrode materials for actual applications. Here, ultrathin nanoribbons of sodium titanate (M-NTO, NaTi1.5O8.3) and potassium titanate (M-KTO, K2Ti4O9) were successfully synthesized by a simultaneous oxidation and alkalization process of Ti3C2 MXene. Benefiting from the suitable interlayer spacing (0.90 nm for M-NTO, 0.93 nm for M-KTO), ultrathin thickness (