TY - JOUR
T1 - Ultrasonically dispersed multi-composite strategy of NiCo2S4/Halloysite nanotubes/carbon
T2 - An efficient solid-state hybrid supercapacitor and hydrogen evolution reaction material
AU - Shinde, Surendra K.
AU - Dubal, Deepak P.
AU - Yadav, Hemraj M.
AU - Jagadale, Ajay D.
AU - Maile, Nagesh
AU - Karade, Swapnil S.
AU - Lee, Dae Sung
AU - Kim, Dae Young
N1 - Publisher Copyright:
© 2022 Elsevier Ltd and Techna Group S.r.l.
PY - 2022/9/1
Y1 - 2022/9/1
N2 - Herein, we have developed a novel hybrid material based on NiCo2S4 (NCS), halloysite nanotubes (HNTs), and carbon as promising electrodes for supercapacitors (SCs). Firstly, mesoporous NCS nanoflakes were prepared by co-precipitation method followed by physically mixing with HNTs and carbon, and screen printed on nickel foam. After ultrasonication, a uniform distribution of the Carbon/HNTs complex was observed, which was confirmed by surface morphological analysis. When used as electrode material, the NCS/HNTs/C hybrid displayed a maximum specific capacity of 544 mAh g−1 at a scan rate of 5 mV s−1. Later, a solid-state hybrid SCs was fabricated using activated carbon (AC) as the negative and NCS/HNTs/C as the positive electrode (NCS/HNTs/C//AC). The device delivers a high energy density of 42.66 Wh kg−1 at a power density of 8.36 kW kg−1. In addition, the device demonstrates long-term cycling stability. Furthermore, the optimized NCS, NCS/HNTs, and NCS/HNTs/C nanocomposites also presented superior hydrogen evolution reaction (HER) performance of 201, 169, and 116 mV in the acidic bath at a current density of 10 mA cm−2, respectively. Thus, the synthesis of NCS/HNTs/C nanocomposite as positive electrodes for hybrid SCs opens new opportunities for the development of next-generation high energy density SCs.
AB - Herein, we have developed a novel hybrid material based on NiCo2S4 (NCS), halloysite nanotubes (HNTs), and carbon as promising electrodes for supercapacitors (SCs). Firstly, mesoporous NCS nanoflakes were prepared by co-precipitation method followed by physically mixing with HNTs and carbon, and screen printed on nickel foam. After ultrasonication, a uniform distribution of the Carbon/HNTs complex was observed, which was confirmed by surface morphological analysis. When used as electrode material, the NCS/HNTs/C hybrid displayed a maximum specific capacity of 544 mAh g−1 at a scan rate of 5 mV s−1. Later, a solid-state hybrid SCs was fabricated using activated carbon (AC) as the negative and NCS/HNTs/C as the positive electrode (NCS/HNTs/C//AC). The device delivers a high energy density of 42.66 Wh kg−1 at a power density of 8.36 kW kg−1. In addition, the device demonstrates long-term cycling stability. Furthermore, the optimized NCS, NCS/HNTs, and NCS/HNTs/C nanocomposites also presented superior hydrogen evolution reaction (HER) performance of 201, 169, and 116 mV in the acidic bath at a current density of 10 mA cm−2, respectively. Thus, the synthesis of NCS/HNTs/C nanocomposite as positive electrodes for hybrid SCs opens new opportunities for the development of next-generation high energy density SCs.
KW - Carbon
KW - Halloysites
KW - Hybrid supercapacitors
KW - Hydrogen evolution reaction
KW - NiCoS
KW - Solid-state hybrid device
KW - Ultrasonication treatment
UR - http://www.scopus.com/inward/record.url?scp=85130461566&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2022.05.156
DO - 10.1016/j.ceramint.2022.05.156
M3 - Article
AN - SCOPUS:85130461566
SN - 0272-8842
VL - 48
SP - 25020
EP - 25033
JO - Ceramics International
JF - Ceramics International
IS - 17
ER -