Gas-phase synthesis of Ti_(2)CCl_(2) enables an efficient catalyst for lithiumsulfur batteries  

作　　者：Maoqiao Xiang Zihan Shen Jie Zheng Miao Song Qiya He Yafeng Yang Jiuyi Zhu Yuqi Geng Fen Yue Qinghua Dong Yu Ge Rui Wang Jiake Wei Weiliang Wang Haiming Huang Huigang Zhang Qingshan Zhu Chuanfang John Zhang 

机构地区：[1]State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China [2]School of Chemical Engineering,University of the Chinese Academy of Sciences,Beijing 100049,China [3]Innovation Academy for Green Manufacture,Chinese Academy of Sciences,Beijing 100190,China [4]China Nuclear Power Engineering Co.,Ltd.,117 West Third Ring Road,North Section,Beijing 100840,China [5]College of Materials Science&Engineering,Sichuan University,Chengdu 610065,China [6]State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China [7]School of Physics,Guangdong Province Key Laboratory of Display Material and Technology,Center for Neutron Science and Technology,Sun Yat-sen University,Guangzhou 510275,China [8]Solid State Physics&Material Research Laboratory,School of Physics and Materials Science,Guangzhou University,Guangzhou 510006,China

出　　处：《The Innovation》2024年第1期33-40,共8页创新（英文）

基　　金：This work was supported by Basic Frontier Scientific Research of the Chinese Academy of Sciences(ZDBS-LY-JSC041);the National Natural Science Foundation of China(22178348);the open research fund of the State Key Laboratory of Mesoscience and Engineering(MESO-23-D06);the Youth Innovation Promotion Association CAS(292021000085).We also thank Wenchang Wang at Shimadzu(China)for help with the XPS analysis.

摘　　要：MXenes have aroused intensive enthusiasm because of their exotic properties and promising applications.However,to date,they are usually synthesized by etching technologies.Developing synthetic technologies provides more opportunities for innovation and may extend unexplored applications.Here,we report a bottom-up gas-phase synthesis of Cl-terminated MXene(Ti_(2)CCl_(2)).The gas-phase synthesis endows Ti_(2)CCl_(2) with unique surface chemistry,high phase purity,and excellent metallic conductivity,which can be used to accelerate polysulfide conversion kinetics and dramatically prolong the cyclability of Li-S batteries.In-depth mechanistic analysis deciphers the origin of the formation of Ti_(2)CCl_(2) and offers a paradigm for tuning MXene chemical vapor deposition.In brief,the gas-phase synthesis transforms the synthesis of MXenes and unlocks the hardly achieved potentials of MXenes.

关 键 词：SYNTHESIS PHASE LITHIUM 

分 类 号：TM912[电气工程—电力电子与电力传动] O643.36[理学—物理化学]