CeO_(2)quantum-dots engineering 3D carbon architectures toward dendrite-free Na anode and reversible Te cathode for high-performance Na-Te batteries
作者机构：CAS Key Laboratory of Design and Assembly of Functional Nanostructuresand Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujianChina College of Materials Science and EngineeringFuzhou UniversityFuzhouChina Department of Chemical EngineeringKU LeuvenHeverleeBelgium
出 版 物：《InfoMat》 (信息材料（英文）)
年 卷 期：2022年第4卷第10期
页 面：90-101页
核心收录：
基 金：National Natural Science Foundation of China,Grant/Award Numbers:21875253,51872048,52073061 Natural Science Foundation of Fujian Province,Grant/Award Numbers:2021J01430167,2021J02020 CAS-Commonwealth Scientific and Industrial Research Organization(CSIRO)Joint Research Projects,Grant/Award Number:121835KYSB20200039 Scientific Research and Equipment Development Project of CAS,Grant/Award Number:YJKYYQ20190007 Joint Fund of the Yulin University and the Dalian National Laboratory for Clean Energy,Grant/Award Number:YLU-DNL Fund 2021011
主 题：CeO_(2)quantum dots dual-functional hosts hierarchical porous carbon microsphere skeleton nanohybrids Na-Te batteries
摘 要：Sodium-tellurium(Na-Te)battery,thanks to high theoretical capacity and abundant sodium source,has been envisaged as one promising battery technology,its practical application yet faces daunting challenges regarding how to mitigate the critical issues of uncontrollable dendrites growth at Na anode and polytellurides shuttling effect at Te *** here report an elaborative design for fabrication of microsphere skeleton nanohybrids with three-dimensional(3D)hierarchical porous carbon loading CeO_(2)quantum dots(CeO_(2)-QDs/HPC),which feature highly favorable properties of sodiophilic and catalysis for hosting sodium and tellurium,*** systematic investigations coupling with first-principle calculations demonstrate the CeO_(2)-QDs/HPC not only offers favorable structure and abundant electrocatalytic sites for facilitating interconversion between Te and NaxTe as a cathode host,but also can function as dendrite inhibitor anode host for reversible sodium electro-plating/*** Na-Te battery exhibits admiring electrochemical performance with an impressive specific capacity of 392 mAh g1,a long cycling stability over 1000 cycles,as well as remarkably high energy density of 192 Wh kg1 based on the total mass of anode and *** proof-of-concept bifunctional host design for active electrode materials can render a new insight and direction to the development of high-performance Na-Te batteries.
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