| NiS/Ni3S2@NiWO4纳米阵列用于构造能量密度创新高的全固态混合超级电容器 |
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| 引用本文： | 陈方帅,崔晓亚,刘畅,崔柏桦,窦树明,许洁,刘丝靓,张鸿,邓意达,陈亚楠,胡文彬. NiS/Ni3S2@NiWO4纳米阵列用于构造能量密度创新高的全固态混合超级电容器[J]. SCIENCE CHINA Materials, 2021, 0(4) |
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| 作者姓名： | 陈方帅 崔晓亚 刘畅 崔柏桦 窦树明 许洁 刘丝靓 张鸿 邓意达 陈亚楠 胡文彬 |
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| 作者单位： | School of Materials Science and Engineering;Center for Programmable Materials;Joint School of National University of Singapore and Tianjin University |
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| 基金项目： | the National Natural Science Foundation of China(91963113)。 |
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| 摘 要： | 混合型纳米电极材料的合理设计及合成对于其不同的应用具有重要意义,尤其是对于可用于下一代电动汽车和电子设备供电的高效纳米结构超级电容器(SCs)储能器件.本文报道了一种简便可控合成核-壳Ni3S2@NiWO4纳米阵列的方法,并将其用于混合超级电容器的独立电极.在5 mA cm-2的条件下,所制备的Ni3S2@NiWO4独立电极表现出高达2032μA h cm-2的面积容量;即使电流密度增至50 mA cm-2,其容量保留率仍为63.6%.更重要的是,在功率密度为3.128 mW cm-2时,该Ni3S2@NiWO4纳米阵列混合超级电容器仍表现出1.283 mW h cm-2的最大能量密度;而在能量密度为0.753 mW h cm-2时,该超级电容器表现出的最大功率密度为41.105 mW cm-2.此外,该混合超级电容器在连续10,000次循环后仍能保持89.6%的原始容量,从而进一步证明其优异的稳定性.本研究为合理设计各种核壳金属纳米结构提供了便捷途径,有助于促进其在高性能储能器件领域的广泛应用.
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| 关 键 词： | 混合超级电容器 储能器件 纳米电极材料 能量密度 纳米阵列 设备供电 金属纳米结构 电动汽车 |
Ni3S2@NiWO4nanoarrays towards all-solid-state hybrid supercapacitor with record-high energy density |
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| Fangshuai Chen,Xiaoya Cui,Chang Liu,Baihua Cui,Shuming Dou,Jie Xu,Siliang Liu,Hong Zhang,Yida Deng,Yanan Chen,Wenbin Hu. Ni3S2@NiWO4nanoarrays towards all-solid-state hybrid supercapacitor with record-high energy density[J]. , 2021, 0(4) |
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| Authors: | Fangshuai Chen Xiaoya Cui Chang Liu Baihua Cui Shuming Dou Jie Xu Siliang Liu Hong Zhang Yida Deng Yanan Chen Wenbin Hu |
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| Affiliation: | (School of Materials Science and Engineering,Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education,Tianjin Key Laboratory of Composite and Functional Materials,Tianjin University,Tianjin 300072,China;Center for Programmable Materials,School of Materials Science and Engineering,Nanyang Technological University,Singapore 639798,Singapore;Joint School of National University of Singapore and Tianjin University,International Campus of Tianjin University,Fuzhou 350207,China) |
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| Abstract: | The rational design and synthesis of hybrid-type electrode nanomaterials are significant for their diverse applications,including their potential usage as high-efficiency nanoarchitectures for supercapacitors(SCs)as a class of promising energy-storage systems for powering next-generation electric vehicles and electronic devices.Here,we reported a facile and controllable synthesis of core-shell Ni3S2@NiWO4nanoarrays to fabricate a freestanding electrode for hybrid SCs.Impressively,the as-prepared freestanding Ni3S2@NiWO4electrode presents an ultrahigh areal capacity of 2032μA h cm-2at 5 mA cm-2,and a capacity retention of 63.6%even when the current density increased up to 50 mA cm-2.Remarkably,the Ni3S2@NiWO4nanoarraybased hybrid SC delivers a maximum energy density of 1.283 mW h cm-2at 3.128 mW cm-2and a maximum power density of 41.105 mW cm-2at 0.753 mW h cm-2.Furthermore,the hybrid SC exhibits a capacity retention of 89.6%even after continuous 10,000 cycles,proving its superior stability.This study provides a facile pathway to rationally design a variety of core-shell metal nanostructures for high-performance energy storage devices. |
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| Keywords: | core-shell nanoarrays freestanding electrode maximum energy density hybrid SC |
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