title: Controllable Synthesis of Copper Oxide/Carbon Core/Shell Nanowire Arrays and Their Application for Electrochemical Energy Storage.
abstract: Rational design/fabrication of integrated porous metal oxide arrays is critical for the construction of advanced electrochemical devices. Herein, we report self-supported CuO/C core/shell nanowire arrays prepared by the combination of electro-deposition and chemical vapor deposition methods. CuO/C nanowires with diameters of ~400 nm grow quasi-vertically to the substrates forming three-dimensional arrays architecture. A thin carbon shell is uniformly coated on the CuO nanowire cores. As an anode of lithium ion batteries, the resultant CuO/C nanowire arrays are demonstrated to have high specific capacity (672 mAh·g-1at 0.2 C) and good cycle stability (425 mAh·g-1at 1 C up to 150 cycles). The core/shell arrays structure plays positive roles in the enhancement of Li ion storage due to fast ion/electron transfer path, good strain accommodation and sufficient contact between electrolyte and active materials.
authors.affiliation: State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China. zhanjiye@yeah.net.
authors.forename: Jiye
authors.initials: J
authors.lastname: Zhan
authors.affiliation: School of Applied Science, Harbin University of Science and Technology, Harbin 150080, China. chenminghuahrb@126.com.
authors.forename: Minghua
authors.initials: M
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China. helloxxh@zju.edu.cn.
authors.forename: Xinhui
authors.initials: X
authors.lastname: Xia
keywords: anode; copper oxides; core/shell structure; lithium ion batteries; nanowire arrays