Journal
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume 135, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2019.109112
Keywords
ZnO/CoO nanoparticles; Amorphous rice husk carbon; Cellulose; Lithium ion battery; Anode
Funding
- National Key Research and Development Program of China [2016YFF0201204]
- China Postdoctoral Science Foundation [2017M611321]
- Project of Jilin Provincial Science and Technology Department [20180201074GX, 20190201110JC]
- Project of Jilin Provincial Education Department [JJKH20180130KJ]
- Open Project of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University [2019-8]
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As an anode of lithium ion battery, bimetallic oxides have received considerable attention owing to the high theoretical specific capacity, while their inherent poor conductivity and large volume changes during cycling have limited rate performance and cycle stability and blocked further application. In this work, a novel compound zinc-cobalt bimetallic oxides anchored on the surface of 3D amorphous rice husk-derived carbon matrix has been prepared through a facile method. When used as anode for lithium ion battery, it displays a high charge capacity of 972 mAh g(-1) over 150 cycles at 100 mA g(-1). The excellent electrochemistry performance is attributed to the introduction of rice husk-derived carbon, which improves the electronic conductivity of ZnO/CoO nanoparticles and solves the rapid decay of lithium-ion battery capacity caused by volume expansion. This work not only supplies an advanced electrode for energy storage devices, but also provides an effectively way to utilize agricultural residues.
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