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题名: Alkalized Ti3C2 MXene nanoribbons with expanded interlayer spacing for high-capacity sodium and potassium ion batteries
作者: Lian, Peichao1;  Dong, Yanfeng1;  Wu, Zhong-Shuai1;  Zheng, Shuanghao1, 2, 4;  Wang, Xiaohui3;  Wang, Sen1, 4;  Sun, Chenglin1;  Qin, Jieqiong1, 4;  Shi, Xiaoyu1, 2, 5;  Bao, Xinhe1, 2
关键词: MXene ;  Alkalization ;  Nanoribbons ;  Sodium ion batteries ;  Potassium ion batteries
刊名: NANO ENERGY
发表日期: 2017-10-01
DOI: 10.1016/j.nanoen.2017.08.002
卷: 40, 页:1-8
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Applied
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: As post-lithium ion batteries, both sodium ion batteries (SIBs) and potassium ion batteries (PIBs) possess great potential for large scale energy storage. However, the improvements of both SIBs and PIBs for practical applications are facing great challenges in the development of high-performance electrode materials. Here, we demonstrate the fabrication of alkalized Ti3C2 (a-Ti3C2) MXene nanoribbons attained by continuous shaking treatment of pristine Ti3C2 MXene in aqueous KOH solution. Benefited from the expanded interlayer spacing of a-Ti3C2, narrow widths of nanoribbons as well as three-dimensional interconnected porous frameworks for enhanced ion reaction kinetics and improved structure stability, the resulting a-Ti3C2 anodes showed excellent sodium/potassium storage performance, for example, high reversible capacities of 168 and 136 mA h g(-1) at 20 mA g(-1) and 84 and 78 mA h g(-1) at 200 mA g(-1) were obtained for SIBs and PIBs, respectively. Notably, a-Ti3C2 possessed outstanding long-term cyclability at high current density of 200 mA g(-1), delivering a capacity of similar to 50 mA h g(-1) for SIBs and similar to 42 mA h g(-1) for PIBs after 500 cycles, which outperformed most of reported MXene based anodes for SIBs and PIBs. Moreover, this alkalization strategy could be extended as a universal approach for fabricating various alkalized MXene-based frameworks derived from a large family of MAX phases for numerous applications, such as catalysis, energy storage and conversion.
关键词[WOS]: HIGH VOLUMETRIC CAPACITANCE ;  2-DIMENSIONAL TITANIUM CARBIDE ;  ELECTROCHEMICAL ENERGY-STORAGE ;  TRANSITION-METAL CARBIDES ;  ELECTRODE MATERIALS ;  ANODE MATERIAL ;  PERFORMANCE ;  LI ;  INTERCALATION ;  NANOSHEETS
语种: 英语
WOS记录号: WOS:000411687800001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/150110
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.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, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
4.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
5.Univ Sci & Technol China, Dept Chem Phys, 96 JinZhai Rd, Hefei 230026, Anhui, Peoples R China

Recommended Citation:
Lian, Peichao,Dong, Yanfeng,Wu, Zhong-Shuai,et al. Alkalized Ti3C2 MXene nanoribbons with expanded interlayer spacing for high-capacity sodium and potassium ion batteries[J]. NANO ENERGY,2017,40:1-8.
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