Facile synthesis of a NiO/NiS hybrid and its use as an efficient electrode material for supercapacitor applications

2018 ◽  
Vol 42 (7) ◽  
pp. 5309-5313 ◽  
Author(s):  
Sang-Yong Kim ◽  
Chandu V. V. Muralee Gopi ◽  
Araveeti Eswar Reddy ◽  
Hee-Je Kim
Keyword(s):  
Hydrothermal Synthesis ◽  
Specific Capacitance ◽  
Electrode Material ◽  
Composite Electrode ◽  
Cost Effective ◽  
Cyclic Stability ◽  
Ni Foam ◽  
Facile Synthesis ◽  
Supercapacitor Applications

Cost-effective NiO/NiS nanosheets decorated with nanoparticles were successfully fabricated on Ni foam by carrying out a simple two-step hydrothermal synthesis. The resultant NiO/NiS composite electrode exhibited better specific capacitance and cyclic stability than did a NiO electrode.

Facile one-step synthesis of a composite CuO/Co3O4 electrode material on Ni foam for flexible supercapacitor applications

2017 ◽  
Vol 41 (13) ◽  
pp. 5493-5497 ◽  
Author(s):  
Hee-Je Kim ◽  
Sang Yong Kim ◽  
Lun Jae Lim ◽  
Araveeti Eswar Reddy ◽  
Chandu V. V. Muralee Gopi
Keyword(s):  
Hydrothermal Synthesis ◽  
Specific Capacitance ◽  
Electrode Material ◽  
Composite Electrode ◽  
Cyclic Stability ◽  
Ni Foam ◽  
Flexible Supercapacitor ◽  
One Step ◽  
Supercapacitor Applications

CuO/Co3O4 nanospheres were grown on Ni foam via a simple, one-step hydrothermal synthesis. The resultant CuO/Co3O4 composite electrode exhibits superior specific capacitance and cyclic stability compared to the Co3O4 electrode.

scholarly journals Cost-Effective Synthesis of Efficient CoWO4/Ni Nanocomposite Electrode Material for Supercapacitor Applications

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2195
Author(s):  
Kannadasan Thiagarajan ◽  
Dhandapani Balaji ◽  
Jagannathan Madhavan ◽  
Jayaraman Theerthagiri ◽  
Seung Jun Lee ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Electrode Material ◽  
Composite Electrode ◽  
Electrode Materials ◽  
Supporting Electrolyte ◽  
Cost Effective ◽  
X Ray ◽  
Transmission Electron ◽  
Effective Synthesis ◽  
Supercapacitor Applications

In the present study, the synthesis of CoWO4 (CWO)–Ni nanocomposites was conducted using a wet chemical method. The crystalline phases and morphologies of the Ni nanoparticles, CWO, and CWO–Ni composites were analyzed using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDAX). The electrochemical properties of CWO and CWO–Ni composite electrode materials were assessed by cyclic voltammetry (CV), and galvanostatic charge–discharge (GCD) tests using KOH as a supporting electrolyte. Among the CWO–Ni composites containing different amounts of Ni1, Ni2, and Ni3, CWO–Ni3 exhibited the highest specific capacitance of 271 F g−1 at 1 A g−1, which was greater than that of bare CWO (128 F g−1). Moreover, the CWO–Ni3 composite electrode material displayed excellent reversible cyclic stability and maintained 86.4% of its initial capacitance after 1500 discharge cycles. The results obtained herein demonstrate that the prepared CWO–Ni3 nanocomposite is a promising electrode candidate for supercapacitor applications.

Facile Hydrothermal Synthesis and Electrochemical Performance of NiCo2O4 Nanoneedles

2020 ◽  
Vol 15 (2) ◽  
pp. 164-170
Author(s):  
Duo Cui ◽  
Rongda Zhao ◽  
Jun Xiang ◽  
Fufa Wu ◽  
Lijun Xin ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Spatial Structure ◽  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Retention Rate ◽  
Cyclic Stability ◽  
Ni Foam ◽  
Asymmetric Supercapacitors ◽  
Hybrid Supercapacitors ◽  
One Step

NiCo2O4 nanoneedles on the surface of Ni foam were grown by a simple one step hydrothermal method, which is used as the working electrode for asymmetric supercapacitors. Its area specific capacitance is 981.64 C cm–2 at 1 mA cm–2, and the cycling stability can reach 100% after 10000 cycles at 4 mA cm–2. The spatial structure of the nanoneedle has important influence on the cyclic stability of NiCo2O4 electrode. The hybrid supercapacitors are prepared on the basis of the prepared NiCo2O4 nanoneedle electrodes. After 8000 cycles, its cycle life is stable and the capacitance retention rate reaches 100%.

Facile synthesis of hierarchical ZnMn2O4@ZnFe2O4 microspheres on nickel foam for high-performance supercapacitor applications

2018 ◽  
Vol 42 (4) ◽  
pp. 2964-2969 ◽  
Author(s):  
Araveeti Eswar Reddy ◽  
Tarugu Anitha ◽  
Chandu V. V. Muralee Gopi ◽  
Ikkurthi Kanaka Durga ◽  
Hee-Je Kim
Keyword(s):  
Specific Capacitance ◽  
High Performance ◽  
Nickel Foam ◽  
Cyclic Stability ◽  
Facile Synthesis ◽  
Supercapacitor Applications

ZnMn2O4@ZnFe2O4 microsphere-like structures exhibit superior specific capacitance and cyclic stability than the ZnMn2O4 and ZnFe2O4 electrodes.

Remarkable capacitive behavior of a Co3O4–polyindole composite as electrode material for supercapacitor applications

2015 ◽  
Vol 3 (48) ◽  
pp. 24338-24348 ◽  
Author(s):  
R. Pavul Raj ◽  
P. Ragupathy ◽  
S. Mohan
Keyword(s):  
Synergistic Effect ◽  
Specific Capacitance ◽  
Electrode Material ◽  
Composite Electrode ◽  
High Specific Capacitance ◽  
Single Step ◽  
Rate Performance ◽  
Capacitive Behavior ◽  
Supercapacitor Applications

A single step synthesized Co3O4–polyindole composite electrode exhibits high specific capacitance, rate performance and cyclability. This enhanced electrochemical supercapacitive behavior is mainly attributed to the synergistic effect between Co3O4 and polyindole.

scholarly journals Facile synthesis of a α-MoO3 nanoplate/TiO2 nanotube composite for high electrochemical performance

RSC Advances ◽  
2017 ◽  
Vol 7 (37) ◽  
pp. 22983-22989 ◽  
Author(s):  
Shupei Sun ◽  
Xiaoming Liao ◽  
Yu Sun ◽  
Guangfu Yin ◽  
Yadong Yao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Electrode Material ◽  
High Performance ◽  
Composite Electrode ◽  
Tio2 Nanotube ◽  
Electrodeposition Technique ◽  
Facile Synthesis ◽  
Supercapacitor Applications

A novel α-MoO3/TiO2 composite electrode material for high performance supercapacitor applications was synthesized using a facile electrodeposition technique.

NiMoO4@NiWO4 honeycombs as a high performance electrode material for supercapacitor applications

2018 ◽  
Vol 47 (27) ◽  
pp. 9057-9063 ◽  
Author(s):  
Araveeti Eswar Reddy ◽  
Tarugu Anitha ◽  
Chandu V. V. Muralee Gopi ◽  
S. Srinivasa Rao ◽  
Hee-Je Kim
Keyword(s):  
Specific Capacitance ◽  
Electrode Material ◽  
High Performance ◽  
Cyclic Stability ◽  
Supercapacitor Applications

NiMoO4@NiWO4 electrode with honeycomb-like structure exhibits very good specific capacitance and cyclic stability than the NiMoO4 electrode.

scholarly journals One-pot hydrothermal synthesis of Mn3O4 nanorods grown on Ni foam for high performance supercapacitor applications

2013 ◽  
Vol 8 (1) ◽  
pp. 535 ◽  
Author(s):  
Dongwei Li ◽  
Fanhui Meng ◽  
Xiuling Yan ◽  
Lishan Yang ◽  
Hua Heng ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
High Performance ◽  
Ni Foam ◽  
One Pot ◽  
Supercapacitor Applications

One-step synthesis and electrochemical performance of a PbMoO4/CdMoO4 composite as an electrode material for high-performance supercapacitor applications

2019 ◽  
Vol 48 (28) ◽  
pp. 10652-10660 ◽  
Author(s):  
Tarugu Anitha ◽  
Araveeti Eswar Reddy ◽  
Yedluri Anil Kumar ◽  
Young-Rae Cho ◽  
Hee-Je Kim
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Electrode Material ◽  
High Performance ◽  
Cycling Stability ◽  
One Step ◽  
Supercapacitor Applications

A bunch of PbMoO4/CdMoO4 nanocube-like structures exhibit superior specific capacitance and cycling stability to PbMoO4 and CdMoO4 electrodes.

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