Herein, accessible and low-cost CoMn2O4@Ni3S2 core-shell nanoneedle arrays have been prepared via a two-step approach comprised with hydrothermal-calcination and electrochemical deposition procedures, successfully. In the beginning, CoMn2O4 nanoneedle arrays took root on Ni foam to form the core skeleton and subsequently, hierarchical Ni3S2 nanosheets uniformly overlaid on the surface of CoMn2O4 nanoneedles shaping the shell structure. This CoMn2O4@Ni3S2 material was measured directly as supercapacitor electrode and presented high specific capacity of 192.2 mAh g(-1) with current density of 1 A g(-1). Besides, the electrode delivered outstanding cyclical stability as the capacity retention attained 90.2% after charge-discharge measurement at a large current density of 10 A g(-1) for 10 000 cycles. Furthermore, a hybrid supercapacitor assembled by CoMn2O4@Ni3S2 cathode and activated carbon anode represented a high energy density of 51.2 Wh kg(-1) with the power density of 1030.0 W kg(-1). This work shows a facile and inexpensive procedure to design high-performance and strong-stability supercapacitor electrodes.
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Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 10084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 10084, Peoples R China
Du, Hanbo
Wang, Chen
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Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 10084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 10084, Peoples R China
Wang, Chen
Lv, Jinlong
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Tohoku Univ, Sendai, Miyagi 9808577, JapanTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 10084, Peoples R China
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Indian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, IndiaIndian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, India
Halder, Lopamudra
Si, Suman Kumar
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Indian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, IndiaIndian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, India
Si, Suman Kumar
De, Anurima
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Indian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, IndiaIndian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, India
De, Anurima
Ojha, Suparna
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Indian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, IndiaIndian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, India
Ojha, Suparna
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Bera, Sumanta
Maity, Parna
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Indian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, IndiaIndian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, India
Maity, Parna
Mondal, Ankita
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Indian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, IndiaIndian Inst Technol Kharagpur, Mat Sci Ctr, Kharagpur 721302, W Bengal, India
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Yu, G.
Zhou, J.
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East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Zhou, J.
Chen, Q.
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Chen, Q.
Huang, Z.
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Huang, Z.
Tao, K.
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
Tao, K.
Han, L.
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Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R ChinaNingbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China