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Ti3C2 MXene-Derived Sodium/Potassium Titanate Nanoribbons for High-Performance Sodium/Potassium Ion Batteries with Enhanced Capacities
Dong, Yanfeng; Wu, Zhong-Shuai; Zheng, Shuanghao; Wang, Xiaohui; Qin, Jieqiong; Wang, Sen; Shi, Xiaoyu; Bao, Xinhe; Wu, ZS (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China.
2017-05-01
发表期刊ACS NANO
ISSN1936-0851
卷号11期号:5页码:4792-4800
摘要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 (<11 nm), narrow widths of nanoribbons (<60 nm), and open macroporous structures for enhanced ion insertion/extraction kinetics, the resulting M-NTO exhibited a large reversible capacity of 191 mAh g(-1) at 200 mA g(-1) for sodium storage, higher than those of pristine Ti3C2 (178 mAh g(-1)) and commercial TiC derivatives (86 mAh g(-1)). Notably, M-KTO displayed a superior reversible capacity of 151 mAh g(-1) at 50 mA g(-1) and 88 mAh g(-1) at a high rate of 300 mA g(-1) and long-term stable cyclability over 900 times, which outperforms other Ti-based layered materials reported to date. Moreover, this strategy is facile and highly flexible and can be extended for preparing a large number of MXene-derived materials, from the 60+ group of MAX phases, for various applications such as supercapacitors, batteries, and electrocatalysts.; 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 (<11 nm), narrow widths of nanoribbons (<60 nm), and open macroporous structures for enhanced ion insertion/extraction kinetics, the resulting M-NTO exhibited a large reversible capacity of 191 mAh g(-1) at 200 mA g(-1) for sodium storage, higher than those of pristine Ti3C2 (178 mAh g(-1)) and commercial TiC derivatives (86 mAh g(-1)). Notably, M-KTO displayed a superior reversible capacity of 151 mAh g(-1) at 50 mA g(-1) and 88 mAh g(-1) at a high rate of 300 mA g(-1) and long-term stable cyclability over 900 times, which outperforms other Ti-based layered materials reported to date. Moreover, this strategy is facile and highly flexible and can be extended for preparing a large number of MXene-derived materials, from the 60+ group of MAX phases, for various applications such as supercapacitors, batteries, and electrocatalysts.
部门归属[dong, yanfeng ; wu, zhong-shuai ; zheng, shuanghao ; qin, jieqiong ; wang, sen ; shi, xiaoyu ; bao, xinhe] chinese acad sci, dalian inst chem phys, dalian natl lab clean energy, 457 zhongshan rd, dalian 116023, peoples r china ; [zheng, shuanghao ; shi, xiaoyu ; bao, xinhe] chinese acad sci, dalian inst chem phys, state key lab catalysis, 457 zhongshan rd, dalian 116023, peoples r china ; [wang, xiaohui] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china ; [zheng, shuanghao ; qin, jieqiong ; wang, sen] univ chinese acad sci, 19 a yuquan rd, beijing 100049, peoples r china ; [shi, xiaoyu] univ sci & technol china, dept chem phys, 96 jinzhai rd, hefei 230026, peoples r china
关键词Mxene Sodium Titanate Potassium Titanate Nanoribbons Sodium Ion Batteries Potassium Ion Batteries
学科领域Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
资助者National Key R&D Program of China [2016YBF0100100, 2016YFA0200200]; National Natural Science Foundation of China [51572259]; Natural Science Foundation of Liaoning Province [201602737]; Thousand Youth Talents Plan of China, DICP [Y5610121T3]; China Postdoctoral Science Foundation [2016M601349]; DICP
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78155
专题中国科学院金属研究所
通讯作者Wu, ZS (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China.
推荐引用方式
GB/T 7714
Dong, Yanfeng,Wu, Zhong-Shuai,Zheng, Shuanghao,et al. Ti3C2 MXene-Derived Sodium/Potassium Titanate Nanoribbons for High-Performance Sodium/Potassium Ion Batteries with Enhanced Capacities[J]. ACS NANO,2017,11(5):4792-4800.
APA Dong, Yanfeng.,Wu, Zhong-Shuai.,Zheng, Shuanghao.,Wang, Xiaohui.,Qin, Jieqiong.,...&Wu, ZS .(2017).Ti3C2 MXene-Derived Sodium/Potassium Titanate Nanoribbons for High-Performance Sodium/Potassium Ion Batteries with Enhanced Capacities.ACS NANO,11(5),4792-4800.
MLA Dong, Yanfeng,et al."Ti3C2 MXene-Derived Sodium/Potassium Titanate Nanoribbons for High-Performance Sodium/Potassium Ion Batteries with Enhanced Capacities".ACS NANO 11.5(2017):4792-4800.
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