纳米复合材料
材料科学
阳极
扫描电子显微镜
透射电子显微镜
微观结构
化学工程
电化学
纳米技术
感应耦合等离子体
表征(材料科学)
纳米颗粒
电极
冶金
复合材料
化学
等离子体
工程类
物理
物理化学
量子力学
作者
Weichang Guo,Chao Yang,Zejun Zhao,Xin Xin,Zhongliang Tian,Ke Peng,Yanqing Lai
标识
DOI:10.1016/j.jssc.2019.01.018
摘要
Herein, we propose a novel in-situ synthesis process to obtain Ag-modified ZnO (Ag/ZnO) nanocomposite by using a commonly available metal-organic framework (ZIF-8). The silver nanoparticles were loaded on to ZIF-8, followed by a designed heat-treatment process to obtain a uniform morphology and optimal electrochemical performance. Various material characterization techniques, such as transmission electron microscopy, X-ray diffraction and scanning electron microscope and inductively coupled plasma-optical emission spectrometer, are used to identify the crystal structure and optimize the morphology of obtained nanocomposites. The influence of silver content on microstructure and electrochemical performance of Ag/ZnO nanocomposite has been systematically studied. The results reveal that an optimal amount of Ag in Ag/ZnO nanocomposite can deliver a stable specific capacity of 590 mAh/g for 160 cycles. Hence, the prepared nanocomposites are promising anode candidates for rechargeable Zn/Ni batteries and the present study opens up avenues for further research on the development and modification of electrode materials for energy storage applications.
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