CuO quantum dots embedded Cu3(BTC)2/CuO sugar gourd-like nanoarrays on copper foil as free-standing anodes for lithium-ion batteries with boosted performance
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引用次数: 1
Abstract
CuO quantum dots (QDs)-embedded Cu3(BTC)2/CuO sugar gourd-like nanoarrays are successfully assembled on copper foil through a two-step wet-chemical growth method. As a free-standing anode for lithium-ion batteries, the resultant composite (Cu-BTC/QDs/CuO@Cu) delivers a high specific capacity of 813 mAh/g at a current density of 0.2 A/g after 150 cycles, and 452 mAh/g at 1.0 A/g after 500 cycles, demonstrating excellent cycling stability and rate performance. The superior energy storage capability is attributed to a synergistic effect from the individual components including the electro-active organic ligand, porous framework and CuO nanowires/QDs. As an efficient binder-free anode, Cu-BTC/QDs/CuO@Cu can be a promising candidate for the development of high-performance and cost-effective LIBs with exceptional energy density and power density capabilities.
采用两步湿化学生长方法在铜箔上成功组装了CuO量子点(QDs)嵌入Cu3(BTC)2/CuO糖葫芦纳米阵列。作为锂离子电池的独立阳极，该复合材料(Cu-BTC/QDs/CuO@Cu)在150次循环后电流密度为0.2 a /g时可提供813 mAh/g的高比容量，在500次循环后电流密度为1.0 a /g时可提供452 mAh/g的高比容量，具有优异的循环稳定性和倍率性能。优异的储能能力归因于各个组成部分的协同效应，包括电活性有机配体、多孔框架和CuO纳米线/量子点。作为一种高效的无粘结剂阳极，Cu-BTC/QDs/CuO@Cu具有优异的能量密度和功率密度能力，是开发高性能和经济高效的锂离子电池的有希望的候选者。
期刊介绍：
The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied.
Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.
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