Two-dimensional MXene Ti3C2 produced by exfoliation of Ti3AlC2

被引：459

作者：

Feng, Aihu ^{[1
,2
]}

Yu, Yun ^{[1
]}

Wang, Yong ^{[1
,2
]}

Jiang, Feng ^{[1
,2
]}

Yu, Yang ^{[1
]}

Mi, Le ^{[1
]}

Song, Lixin ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Coating Mat, Shanghai 200050, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

MATERIALS & DESIGN | 2017年 / 114卷

关键词：

MXene; Bifluoride; Ti3C2; Multilayer structure; Ceramics; HIGH VOLUMETRIC CAPACITANCE; LI-ION BATTERIES; TITANIUM CARBIDE; THERMAL-STABILITY; STORAGE; COMPOSITES; ANODE; INTERCALATION; ELECTROLYTE; PERFORMANCE;

D O I：

10.1016/j.matdes.2016.10.053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

MXene, a new family of 2D materials, possesses excellent electrical conductivity and hydrophilicity. To date, the majority of MXenes are only successfully produced by exfoliating the MAX phases with high concentration hydrofluoric acid (HF). In this study, the 2D MXene Ti3C2 with larger interplanar spacing was successfully obtained by etching Ti3AlC2 with bifluoride (NaHF2, KHF2, NH4HF2) in single-stage process. The morphology, structure and element composition of prepared Ti3C2 samples were characterized by scanning electrons microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive spectrometer (EDS). The synthesis mechanism of Ti3C2 was elaborately demonstrated. The possible reaction equations between Ti3AlC2 and different bifluorides were generalized, indicating the formation of hydrosoluble by-products of Na3AlF6, K3AlF6 and (NH4)(3)AlF6. This work presents a safely effective method to synthesize the 2D nanocrystals MXene. (C) 2016 Elsevier Ltd. All rights reserved.

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页码：161 / 166

页数：6

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