Mesoporous NiCo2S4 nanoparticles as high-performance electrode materials for supercapacitors
Mesoporous NiCo2S4 nanoparticles as high-performance electrode materials for supercapacitors
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介孔NiCo2S4纳米粒子作为超级电容器的高性能电极材料
DOI:
10.1016/j.jpowsour.2014.09.144
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发表时间:
2015
影响因子:
9.2
通讯作者:
Ji Xiaobo
中科院分区:
文献类型:
--
作者:
Zhu Yirong;Wu Zhibin;Jing Mingjun;Yang Xuming;Song Weixin;Ji Xiaobo
Mesoporous NiCo2S4nanoparticles prepared through solvothermal route are reported as remarkable supercapacitor electrode materials. The resulting samples are characterized by means of XRD, FSEM, TEM, HRTEM, SAED, EDS and BET. With large specific surface area, superior mesopore structure and high electronic conductivity, the as-obtained NiCo2S4nanoparticles manifest excellent electrochemical performances with ultrahigh specific capacitance (1440 F g−1at 3 A g−1) after 250 cycles, exceptional rate capability (75.1% capacity retention from 2 to 50 A g−1) and good cycling stability (107.9% of initial capacity retention for 1000 cycles). Additionally, an asymmetric supercapacitor utilising the mesoporous NiCo2S4nanoparticles as a positive electrode and activated carbon as a negative electrode is further fabricated, which exhibits a prominent energy density of 28.3 Wh kg−1at a power density of 245 W kg−1and superior cycling stability of 91.7% initial capacity retention over 5000 cycles. These results above demonstrate the great potential of mesoporous NiCo2S4nanoparticles in the development of high-performance electrode materials for supercapacitors.
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DOI:
10.1039/c3ee41776j
发表时间:
2013-11
期刊:
Energy & Environmental Science
影响因子:
--
作者:
Zhu, Yirong;Ji, Xiaobo;Pan, Chenchi;Sun, Qingqing;Song, Weixin;Fang, Laibing;Chen, Qiyuan;Banks, Craig E.
通讯作者:
Banks, Craig E.
影响因子:
11.9
作者:
Liu, Qian;Liu, Xijian;Zhang, Zhenyu;Hu, Junqing
通讯作者:
Hu, Junqing
影响因子:
6.6
作者:
Hu, CC;Chen, WC
通讯作者:
Chen, WC
影响因子:
6.7
作者:
Chen, Haichao;Jiang, Jianjun;Xia, Dandan
通讯作者:
Xia, Dandan
影响因子:
--
作者:
Rakhi, R. B.;Chen, Wei;Alshareef, H. N.
通讯作者:
Alshareef, H. N.