Uniform growth of ZnS nanoflakes for high-performance supercapacitor applications

被引：108
作者：
Hussain, Iftikhar [1 ]
Mohapatra, Debananda [1 ]
Dhakal, Ganesh [1 ]
Lamiel, Charmaine [1 ,2 ]
Sayed, Mostafa Saad [1 ,3 ]
Sahoo, Sumanta [1 ]
Mohamed, Saad Gomaa [1 ,4 ]
Kim, Jong Su [5 ]
Lee, Yong Rok [1 ]
Shim, Jae-Jin [1 ]
机构：
[1] Yeungnam Univ, Sch Chem Engn, Gyongsan 38541, Gyeongbuk, South Korea
[2] Univ Queensland, Sch Chem Engn, Brisbane, Qld, Australia
[3] Egyptian Petr Res Inst, Anal & Evaluat Dept, Cairo 11727, Egypt
[4] Tabbin Inst Met Studies TIMS, Min & Met Engn Dept, Helwan 109, Cairo 11421, Egypt
[5] Yeungnam Univ, Dept Phys, Gyongsan 38541, Gyeongbuk, South Korea
来源：
JOURNAL OF ENERGY STORAGE | 2021年 / 36卷
关键词：
ZnS; Nanoflake; Single-step synthesis; Supercapacitor; LED; NICKEL FOAM; ELECTRODE MATERIALS; OXIDE NANONEEDLES; HIGH-POWER; NI-FOAM; SULFIDE; ION; COMPOSITES; NANOSTRUCTURES; ARRAYS;
D O I：
10.1016/j.est.2021.102408
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The cost-effective, efficient, and straightforward synthesis of materials for supercapacitor applications has attracted considerable attention for practical applications. In this study, thin zinc sulfide (ZnS) nanoflakes were grown on nickel foam by a facile single-step hydrothermal method. The resulting ZnS electrode delivered a high specific capacity of 659 C g(-1) at 2 A g(-1) and excellent cycling stability. It could function as a positive electrode in KOH electrolyte for high-performance supercapacitors. The device exhibited a remarkable specific capacity of 154 C g(-1), high specific energy of 30 Wh kg(-1), high specific power of 14 kW kg(-1), and only a 4% decrease in the capacitance retention over 2000 cycles. Additionally, two serially connected asymmetric supercapacitor devices powered 52 red light-emitting diodes connected closely with 100 s.
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页数：8
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