Preparation and Property Comparison of Ti2CTx byMolten Salt Method and Liquid Phase Method

ZOU Yunqi; YANG Lei; LI Chao; YAN Ming

doi:10.11973/jxgccl202010015

Materials and Mechanical Engineering > 2020 > 44(10): 72-75. > DOI: 10.11973/jxgccl202010015

ZOU Yunqi, YANG Lei, LI Chao, YAN Ming. Preparation and Property Comparison of Ti₂CT_x byMolten Salt Method and Liquid Phase Method[J]. Materials and Mechanical Engineering, 2020, 44(10): 72-75. DOI: 10.11973/jxgccl202010015

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Preparation and Property Comparison of Ti₂CT_x byMolten Salt Method and Liquid Phase Method

1. College of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China;
2. Collaborative Innovation Center ofGreen Light-Weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China;
3. Hubei Provincial Key Laboratory of Green Materials forLight Industry, Hubei University of Technology, Wuhan 430068, China

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Received Date: June 03, 2019
Revised Date: May 10, 2020

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Abstract

Ti₂CT_x was prepared through etching Ti₂AlC by molten salt method (NaF+KF) and liquid phase method (HCl+NaF). The phase composition, microscopic morphology, surface functional groups and electrochemical properties of etched products by the two methods were compared and studied. The results show that the Ti₂CT_x obtained by liquid phase method had higher purity with four functional groups (C-O, C=O, C-F and O-H) on the surface, and the main impurity was TiC. The Ti₂CT_x obtained by molten salt method had small interlayer spacing with two functional groups (C=O and O-H) on the surface, and the main impurity was K₂NaAlF₆. Ti₂CT_x prepared by molten salt method and liquid phase method both showed good rate performance and electrochemical reversibility, and the latter had better capacitance performance.
- MXene,
- Ti₂CT_x,
- molten salt method,
- liquid phase method

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Preparation and Property Comparison of Ti2CTx byMolten Salt Method and Liquid Phase Method

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Preparation and Property Comparison of Ti₂CT_x byMolten Salt Method and Liquid Phase Method