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Ti3C2 MXene-Derived Sodium/Potassium Titanate Nanoribbons for High-Performance Sodium/Potassium Ion Batteries with Enhanced Capacities
Dong, Yanfeng1; Wu, Zhong-Shuai1; Zheng, Shuanghao1,2,4; Wang, Xiaohui3; Qin, Jieqiong1,4; Wang, Sen1,4; Shi, Xiaoyu1,2,5; Bao, Xinhe1,2
KeywordMxene Sodium Titanate Potassium Titanate Nanoribbons Sodium Ion Batteries Potassium Ion Batteries
Source PublicationACS NANO
2017-05-01
DOI10.1021/acsnano.7b01165
Volume11Pages:4792-4800
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordTRANSITION-METAL CARBIDES ; 2-DIMENSIONAL TITANIUM CARBIDE ; HIGH VOLUMETRIC CAPACITANCE ; ANODE MATERIAL ; ULTRAFAST CHARGE ; DISCHARGE RATES ; SODIUM TITANATE ; POTASSIUM ; STORAGE ; LI
AbstractSodium 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.
Language英语
WOS IDWOS:000402498400045
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152229
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
4.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
5.Univ Sci & Technol China, Dept Chem Phys, 96 JinZhai Rd, Hefei 230026, Peoples R China
Recommended Citation
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,2017,11:4792-4800.
APA Dong, Yanfeng.,Wu, Zhong-Shuai.,Zheng, Shuanghao.,Wang, Xiaohui.,Qin, Jieqiong.,...&Bao, Xinhe.(2017).Ti3C2 MXene-Derived Sodium/Potassium Titanate Nanoribbons for High-Performance Sodium/Potassium Ion Batteries with Enhanced Capacities.ACS NANO,11,4792-4800.
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(2017):4792-4800.
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