Screening Surface Structure of MXenes by High-Throughput Computation and Vibrational Spectroscopic Confirmation

doi:10.1021/acs.jpcc.8b04427

IMR OpenIR

	Screening Surface Structure of MXenes by High-Throughput Computation and Vibrational Spectroscopic Confirmation
	Hu, Tao 1,2; Hu, Minmin 1,3; Gao, Bo 4; Li, Wu 5; Wang, Xiaohui 1
通讯作者	Li, Wu(wu.li@szu.edu.cn) ; Wang, Xiaohui(wang@imr.ac.cn)
	2018-08-16
发表期刊	JOURNAL OF PHYSICAL CHEMISTRY C
ISSN	1932-7447
卷号	122 期号:32 页码:18501-18509
摘要	Functionalized MXenes hold promises in a variety of applications in which the dispensable functional groups are mixed. The functionalization is spontaneously realized through competitive adsorption of active species on the MX matrix during the acid etching process of MAX phases. Nevertheless, the knowledge of proportion and distribution of functional groups on MXenes, i.e., surface structures, is still limited. By high-throughput computation screening, ground-state stable structures of four kinds of typical MXenes-Ti2CTx, Ti3C2Tx, Nb2CTx, and Nb4C3Tx = O, F, and OH)-with mixed functional group compositions are figured out for the first time. The multicomponent functional group patterns definitely demonstrate an obvious feature of spatial mixing at a given component. However, the heterogeneous structure has a near linear dependence on the functional group components in terms of free energy. Most functionalized MXenes are dynamically stable except for Nb2CF2 and Nb2C(OH)(2) due to their competing displacive counterparts. Last but not least, Raman spectra of the four kinds of MXenes confirm the predicted stable surface structures of MXenes. This study provides a clear fundamental basis for understanding the surface structures of MXenes.
资助者	Youth Innovation Promotion Association, Chinese Academy of Sciences (CAS) ; Shenyang National Laboratory for Materials Science, Institute of Metal Research, CAS ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund
DOI	10.1021/acs.jpcc.8b04427
收录类别	SCI
语种	英语
资助项目	Youth Innovation Promotion Association, Chinese Academy of Sciences (CAS)[2011152] ; Shenyang National Laboratory for Materials Science, Institute of Metal Research, CAS[2017RP06] ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund[U1501501]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000442462400034
出版者	AMER CHEMICAL SOC
引用统计	被引频次：141[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/129244
专题	中国科学院金属研究所
通讯作者	Li, Wu; Wang, Xiaohui
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Suzhou Univ Sci & Technol, Inst Mat Sci & Devices, Suzhou 215009, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 4.NIMS, Ctr Mat Res Informat Integrat CMI2, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan 5.Shenzhen Univ, Inst Adv Study, Shenzhen 518060, Peoples R China
推荐引用方式 GB/T 7714	Hu, Tao,Hu, Minmin,Gao, Bo,et al. Screening Surface Structure of MXenes by High-Throughput Computation and Vibrational Spectroscopic Confirmation[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(32):18501-18509.
APA	Hu, Tao,Hu, Minmin,Gao, Bo,Li, Wu,&Wang, Xiaohui.(2018).Screening Surface Structure of MXenes by High-Throughput Computation and Vibrational Spectroscopic Confirmation.JOURNAL OF PHYSICAL CHEMISTRY C,122(32),18501-18509.
MLA	Hu, Tao,et al."Screening Surface Structure of MXenes by High-Throughput Computation and Vibrational Spectroscopic Confirmation".JOURNAL OF PHYSICAL CHEMISTRY C 122.32(2018):18501-18509.