High-performance hybrid supercapacitors based on self-supported 3D ultrathin porous quaternary Zn-Ni-Al-Co oxide nanosheets
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- 作者：Qiaobao Zhanga ; bAuthor Vitae ; Bote ZhaobAuthor Vitae ; Jiexi WangcAuthor Vitae ; Chong QubAuthor Vitae ; Haibin SunbAuthor Vitae ; Kaili Zhanga ; kaizhang@cityu.edu.hk" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Meilin Liub ; meilin.liu@mse.gatech.edu" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Oxide nanosheet ; Porous electrode ; Hybrid supercapacitors ; Transition metal oxides ; Three-dimensional structures
- 刊名：Nano Energy
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：28
- 期：Complete
- 页码：475-485
- 全文大小：4241 K
文摘
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3D hierarchical porous Zn-Ni-Al-Co oxide (ZNACO) nanosheets grown directly on Ni foam is constructed for the first time.
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The resultant binder-free electrodes manifest outstanding electrochemical performances with high capacity, excellent rate capability and cycling stability.
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The synergetic contribution and advantageously structural features contribute to outstanding capacitive performance.
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The assembled ZNACO//AC hybrid supercapacitor achieved a remarkable energy density of 72.4 Wh kg−1 at a power density of 533 W kg−1.