Oxidant-assisted direct-sulfidization of nickel foam toward a self-supported hierarchical Ni3S2@Ni electrode for asymmetric all-solid-state supercapacitors

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成果类型：

期刊论文

作者：

Shen, Miao;Liu, Jinlong;Liu, Tiancheng;Yang, Chunming*;He, Yaxin;...

通讯作者：

Yang, Chunming;Qian, Dong

作者机构：

[Shen, Miao; Liu, Tiancheng; He, Yaxin; Yang, Chunming; Li, Zhouli] Hunan Normal Univ, Coll Chem & Chem Engn, Natl & Local Joint Engn Lab New Petrochem Mat & F, Changsha 410081, Peoples R China.

[Shen, Miao; Liu, Tiancheng; He, Yaxin; Yang, Chunming; Li, Zhouli] Hunan Normal Univ, Coll Chem & Chem Engn, Minist Educ China, Key Lab Chem Biol & Tradit Chinese Med Res, Changsha 410081, Peoples R China.

[Liu, Jinlong; Qian, Dong] Cent S Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Chem Power Resources, Changsha 410083, Peoples R China.

[Liu, Jinlong] Univ Cambridge, Dept Engn, Cambridge CB3 0FA, England.

[Li, Junhua] Hengyang Normal Univ, Coll Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.

通讯机构：

[Yang, Chunming] H

[Qian, Dong] C

Hunan Normal Univ, Coll Chem & Chem Engn, Natl & Local Joint Engn Lab New Petrochem Mat & F, Changsha 410081, Peoples R China.

Hunan Normal Univ, Coll Chem & Chem Engn, Minist Educ China, Key Lab Chem Biol & Tradit Chinese Med Res, Changsha 410081, Peoples R China.

Cent S Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Chem Power Resources, Changsha 410083, Peoples R China.

语种：

英文

关键词：

Capacitance;Electric discharges;Electrodes;Electrolytes;Nickel;Oxidants;Redox reactions;Supercapacitor;Temperature;All-solid state;All-solid-state supercapacitors;Electrochemical materials;Energy storage applications;High specific capacitances;Nickel foam;Sulfidization;Supercapacitive behavior;Nickel compounds

期刊：

Journal of Power Sources

ISSN：

0378-7753

年：

2020

卷：

448

页码：

227408

DOI：

10.1016/j.jpowsour.2019.227408

基金类别：

This work was financially supported by National Natural Science Foundation of China (No. 51874359 , 21171174 and 21505035 ), Provincial Natural Science Foundation of Hunan (No. 2015JJ4035 and 2016JJ3028 ), Key Scientific Research Fund of Hunan Provincial Science and Technology (No. 2011GK2014 ), Hunan Provincial Science and Technology Plan Project (No. 2017TP1001 ), and Scientific Research Projects of Education Department of Hunan Province (No. 18A336 ). Appendix A This work was financially supported by National Natural Science Foundation of China (No. 51874359, 21171174 and 21505035), Provincial Natural Science Foundation of Hunan (No. 2015JJ4035 and 2016JJ3028), Key Scientific Research Fund of Hunan Provincial Science and Technology (No. 2011GK2014), Hunan Provincial Science and Technology Plan Project (No. 2017TP1001), and Scientific Research Projects of Education Department of Hunan Province (No. 18A336).

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院系归属：

化学与材料科学学院

摘要：

In this work, we demonstrate, for the first time, a low-temperature direct-sulfidization of nickel foam (NF) assisted with oxidant K2S2O8 to fabricate a novel self-supported hierarchical porous Ni3S2@NF electrode for supercapacitors. The resultant Ni3S2@NF electrode exhibits a high specific capacitance of 2519.5 mF cm−2 at a current density of 1.0 mA cm−2, and a rate capability of 68.5% over a current density range of 1–20 mA cm−2. At the same time, the retention of areal specific capacitance amounts to ~100% of its initial capacitance at 2...

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Oxidant-assisted direct-sulfidization of nickel foam toward a self-supported hierarchical Ni3S2@Ni electrode for asymmetric all-solid-state supercapacitors

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