Fabrication and thermal stability of NH4HF2-etched Ti3C2MXene
Feng, Aihu1,2; Yu, Yun1; Jiang, Feng1,2; Wang, Yong1,2; Mi, Le1; Yu, Yang1; Song, Lixin1
Source PublicationCeramics International
AbstractMXene, a new family of 2D transition metal carbides and carbonitrides, has been proved to possess excellent electrical conductivity and hydrophilicity. In this work, a single-step method to produce the larger interplanar spacing 2D MXene Ti3C2by etching Ti3AlC2with NH4HF2was demonstrated, and the optimal reaction conditions between Ti3AlC2and NH4HF2were systematically researched. The morphology and microstructure of samples were characterized by scanning electron smicroscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD). The thermal stability of Ti3C2was investigated by the thermogravimetry (TG) and differential thermal analyzer (DTA). It was found that the lattice parameter c of obtained Ti3C2was up to 24.9 Å, and the larger interplanar spacing Ti3C2was more stable than the sample exfoliated by HF. The transition temperature in air from NH4HF2-etched Ti3C2to anatase TiO2thoroughly is more than 500 , and the multilayered structure of Ti3C2could be well retained even afer 900  heat treatment, while the value of HF-etched Ti3C2is less than 350 . This work is important for exploring a safe synthesis method and well understanding the thermal stability of 2D MXene materials. © 2017 Elsevier Ltd and Techna Group S.r.l.
EI Accession Number20170703354408
EI KeywordsAluminum compounds
EI Classification Number531 Metallurgy and Metallography - 641.1 Thermodynamics - 741.3 Optical Devices and Systems - 801 Chemistry - 804.2 Inorganic Compounds
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Document Type期刊论文
Affiliation1.Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
Recommended Citation
GB/T 7714
Feng, Aihu,Yu, Yun,Jiang, Feng,et al. Fabrication and thermal stability of NH4HF2-etched Ti3C2MXene[J]. Ceramics International,2017,43(8):6322-6328.
APA Feng, Aihu.,Yu, Yun.,Jiang, Feng.,Wang, Yong.,Mi, Le.,...&Song, Lixin.(2017).Fabrication and thermal stability of NH4HF2-etched Ti3C2MXene.Ceramics International,43(8),6322-6328.
MLA Feng, Aihu,et al."Fabrication and thermal stability of NH4HF2-etched Ti3C2MXene".Ceramics International 43.8(2017):6322-6328.
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