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Synthesis and Electrochemical Properties of Two-Dimensional Hafnium Carbide
Zhou, Jie1,2; Zha, Xianhu1; Zhou, Xiaobing1; Chen, Fanyan1; Gao, Guoliang3; Wang, Shuwei3; Shen, Cai3; Chen, Tao1; Zhi, Chunyi4; Eklund, Per5; Du, Shiyu1; Xue, Jianming6,7; Shi, Weiqun8,9; Chai, Zhifang8,9; Huang, Qing1
关键词Mxenes Selective Etching 2d Materials Dft Calculations Electrochemical Properties
刊名ACS NANO
2017-04-01
DOI10.1021/acsnano.7b00030
11期:4页:3841-3850
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]TRANSITION-METAL CARBIDES ; HIGH VOLUMETRIC CAPACITANCE ; 2D TITANIUM CARBIDE ; LI-ION BATTERIES ; ENERGY-STORAGE ; MECHANICAL-PROPERTIES ; MOLYBDENUM CARBIDE ; SURFACE-STRUCTURE ; LAYERED CARBIDES ; MAX PHASE
英文摘要We demonstrate fabrication of a two-dimensional Hf-containing MXene, Hf3C2Tz, by selective etching of a layered parent Hf-3[Al(Si)](4)C-6 compound. A substitutional solution of Si on Al sites effectively weakened the interfacial adhesion between Hf-C and Al(Si)-C sublayers within the unit cell of the parent compound, facilitating the subsequent selective etching. The underlying mechanism of the Si-alloying-facilitated etching process is thoroughly studied by first-principles density functional calculations. The result showed that more valence electrons of Si than Al weaken the adhesive energy of the etching interface. The MXenes were determined to be flexible and conductive. Moreover, this 2D Hf-containing MXene material showed reversible volumetric capacities of 1567 and 504 mAh cm(-3) for lithium and sodium ions batteries, respectively, at a current density of 200 mAg(-1) after 200 cycles. Thus, Hf3C2Tz MXenes with a 2D structure are candidate anode materials for metal-ion intercalation, especially for applications where size matters.
语种英语
WOS记录号WOS:000400233200042
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/151955
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Ningbo Inst Mat Engn & Technol, Engn Lab Specialty Fibers & Nucl Energy Mat, Ningbo 315201, Zhejiang, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ningbo Inst Mat Engn & Technol, Energy Storage Div, Ningbo 315201, Zhejiang, Peoples R China
4.City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
5.Linkoping Univ, IFM, Thin Film Phys Div, S-58183 Linkoping, Sweden
6.Peking Univ, CAPT, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
7.Peking Univ, IFSA Collaborat Innovat Ctr, MoE, Beijing 100871, Peoples R China
8.Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China
9.Chinese Acad Sci, Inst High Energy Phys, Key Lab Biomed Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China
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Zhou, Jie,Zha, Xianhu,Zhou, Xiaobing,et al. Synthesis and Electrochemical Properties of Two-Dimensional Hafnium Carbide[J]. ACS NANO,2017,11(4):3841-3850.
APA Zhou, Jie.,Zha, Xianhu.,Zhou, Xiaobing.,Chen, Fanyan.,Gao, Guoliang.,...&Huang, Qing.(2017).Synthesis and Electrochemical Properties of Two-Dimensional Hafnium Carbide.ACS NANO,11(4),3841-3850.
MLA Zhou, Jie,et al."Synthesis and Electrochemical Properties of Two-Dimensional Hafnium Carbide".ACS NANO 11.4(2017):3841-3850.
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