Hydrothermal Synthesis of β-NiS Nanoparticles and Their Applications in High-Performance Hybrid Supercapacitors
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Liu, Xiaohong
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North Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R ChinaNorth Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R China
Liu, Xiaohong
[1
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Wang, Yulin
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North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R ChinaNorth Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R China
Wang, Yulin
[2
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Luo, Chunwang
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North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R ChinaNorth Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R China
Luo, Chunwang
[2
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Zhang, Zheyu
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North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R ChinaNorth Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R China
Zhang, Zheyu
[2
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Sun, Hongyan
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North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R ChinaNorth Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R China
Sun, Hongyan
[2
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Xu, Chunju
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North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R ChinaNorth Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R China
Xu, Chunju
[2
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Chen, Huiyu
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North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R ChinaNorth Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R China
Chen, Huiyu
[2
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机构:
[1] North Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R China
[2] North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R China
In this work, beta-NiS nanoparticles (NPs) were efficiently prepared by a straightforward hydrothermal process. The difference in morphology between these NiS NPs was produced by adding different amounts of thiourea, and the corresponding products were denoted as NiS-15 and NiS-5. Through electrochemical tests, the specific capacity (Cs) of NiS-15 was determined to be 638.34 C g-1 at 1 A g-1, compared to 558.17 C g-1 for NiS-5. To explore the practical application potential of such beta-NiS NPs in supercapacitors, a hybrid supercapacitor (HSC) device was assembled with activated carbon (AC) as an anode. Benefitting from the high capacity of the NiS cathode and the large voltage window of the device, the NiS-15//AC HSC showed a high energy density (Ed) of 43.57 W h kg-1 at 936.92 W kg-1, and the NiS-5//AC HSC provided an inferior Ed of 37.89 W h kg-1 at 954.79 W kg-1. Both HSCs showed excellent cycling performance over 6000 cycles at 10 A g-1. The experimental findings suggest that both NiS-15 and NiS-5 in this study can serve as potential cathodes for high-performance supercapacitors. This current synthesis method is simple and can be extended to the preparation of other transition metal sulfide (TMS)-based electrode materials with exceptional electrochemical properties.
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Yeungnam Univ, Sch Mech Engn, Gyongsan 38541, South KoreaYeungnam Univ, Sch Mech Engn, Gyongsan 38541, South Korea
Raghavendra, Kummara Venkata Guru
Prasanna, A. Lakshmi
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Pusan Natl Univ, Sch Elect Engn, Busandaehak Ro 63beon Gil, Busan 46241, South KoreaYeungnam Univ, Sch Mech Engn, Gyongsan 38541, South Korea
Prasanna, A. Lakshmi
Sreekanth, T. V. M.
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Chungnam Natl Univ, Dept Elect Engn, Energy Storage Convers Lab, Daejeon 38534, South KoreaYeungnam Univ, Sch Mech Engn, Gyongsan 38541, South Korea
Sreekanth, T. V. M.
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Kim, Jonghoon
Yoo, Kisoo
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Yeungnam Univ, Sch Mech Engn, Gyongsan 38541, South KoreaYeungnam Univ, Sch Mech Engn, Gyongsan 38541, South Korea
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South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R ChinaSouth China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China
Sun, Xian
Wang, Jiuwu
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South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R ChinaSouth China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China
Wang, Jiuwu
Chen, Biyu
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South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R ChinaSouth China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China
Chen, Biyu
Dai, Guodong
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South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R ChinaSouth China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China
Dai, Guodong
Situ, Yue
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South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R ChinaSouth China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China
Situ, Yue
Huang, Hong
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South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R ChinaSouth China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China