A Novel Phase-Transformation Activation Process toward Ni–Mn–O Nanoprism Arrays for 2.4 V Ultrahigh-Voltage Aqueous Supercapacitors

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成果类型：

期刊论文

作者：

Zuo, Wenhua;Xie, Chaoyue;Xu, Pan;Li, Yuanyuan;Liu, Jinping*

通讯作者：

Liu, Jinping

作者机构：

[Liu, Jinping; Zuo, Wenhua] Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, Wuhan 430070, Hubei, Peoples R China.

[Liu, Jinping; Zuo, Wenhua] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China.

[Liu, Jinping; Zuo, Wenhua; Xie, Chaoyue; Xu, Pan] Cent China Normal Univ, Inst Nanosci & Nanotechnol, Dept Phys, Wuhan 430079, Hubei, Peoples R China.

[Li, Yuanyuan] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China.

通讯机构：

[Liu, Jinping] W

[Liu, Jinping] C

Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, Wuhan 430070, Hubei, Peoples R China.

Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China.

Cent China Normal Univ, Inst Nanosci & Nanotechnol, Dept Phys, Wuhan 430079, Hubei, Peoples R China.

语种：

英文

关键词：

aqueous supercapacitors;phase-transformation activation;solid-solution arrays;ultrahigh voltage

期刊：

Advanced Materials

ISSN：

0935-9648

年：

2017

卷：

期：

页码：

1703463-

DOI：

10.1002/adma.201703463

基金类别：

National Key R&D Program of China [2016YFA0202602]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51672205, 21673169]; Research Start-Up Fund from Wuhan University of Technology; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [WUT: 2016IVA083, 2017IB005]

机构署名：

本校为通讯机构

院系归属：

物理科学与技术学院

摘要：

One of the key challenges of aqueous supercapacitors is the relatively low voltage (0.8–2.0 V), which significantly limits the energy density and feasibility of practical applications of the device. Herein, this study reports a novel Ni–Mn–O solid-solution cathode to widen the supercapacitor device voltage, which can potentially suppress the oxygen evolution reaction and thus be operated stably within a quite wide potential window of 0–1.4 V (vs saturated calomel electrode) after a simple but unique phase-transformation electrochemical acti...

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A Novel Phase-Transformation Activation Process toward Ni–Mn–O Nanoprism Arrays for 2.4 V Ultrahigh-Voltage Aqueous Supercapacitors

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