Facile synthesis of CuCo2S4 as a novel electrode material for ultrahigh supercapacitor performance

2016 ◽  
Vol 52 (7) ◽  
pp. 1509-1512 ◽  
Author(s):  
Jianhua Tang ◽  
Yuancai Ge ◽  
Jianfeng Shen ◽  
Mingxin Ye
Keyword(s):  
Electrode Material ◽  
Electrochemical Performances ◽  
Facile Synthesis ◽  
Supercapacitor Performance

CuCo2S4 nanoparticles demonstrating outstanding electrochemical performances were firstly synthesized through a simple solvothermal approach without using any templates.

Facile synthesis and superior electrochemical performances of CoNi2S4/graphene nanocomposite suitable for supercapacitor electrodes

2014 ◽  
Vol 2 (25) ◽  
pp. 9613-9619 ◽  
Author(s):  
Weimin Du ◽  
Zhiyong Wang ◽  
Zhaoqiang Zhu ◽  
Sen Hu ◽  
Xiaoyan Zhu ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Electrode Material ◽  
High Performance ◽  
Electrochemical Performances ◽  
Facile Synthesis ◽  
Graphene Nanocomposite ◽  
Nanocomposite Electrodes

CoNi2S4/graphene nanocomposite electrodes exhibit excellent pseudocapacitance behavior enhanced by synergistic effect, demonstrating the nanocomposite's promise as an electrode material for high-performance supercapacitors.

Activated Nitrogen-Enriched Carbon/Reduced Expanded Graphite Composites for Supercapacitors

2011 ◽  
Vol 211-212 ◽  
pp. 440-444 ◽  
Author(s):  
Shu Hui Tong ◽  
Chuan Li Qin ◽  
Zheng Jin ◽  
Xue Song Wang ◽  
Xu Duo Bai
Keyword(s):  
Electrode Material ◽  
In Situ Polymerization ◽  
Expanded Graphite ◽  
Mechanical Mixture ◽  
Electrochemical Measurements ◽  
Electrochemical Performances ◽  
Cycle Stability ◽  
Symmetric Supercapacitor ◽  
Graphite Composites

Activated nitrogen-enriched carbon/reduced expanded graphite composites (ANC/REG-c) with different composite ratio were prepared by in-situ polymerization, carbonization, activation and reduction of aniline and expanded graphite. These were characterized by XPS, SEM and electrochemical measurements. XPS shows that N atoms exist in the ANC and ANC/REG-c. Compared to mechanical mixture of ANC and REG(ANC/REG-m), ANC/REG-c shows lower resistance and higherCp1(185.4 F/g) vs 124.3 F/g of ANC/REG-m measured by CV due to the introduction of the composite sturcture. When the composite ratio of ANC/REG-c is 6:1, the ANC/REG-c shows the highestCp1(264.0 F/g) and its symmetric supercapacitor also shows the best synthetical electrochemical performances. The optimal supercapacitor presents good cycle stability. ANC/REG-c is a suitable electrode material for supercapacitors.

Facile Synthesis of Corn Silk Derived Nanoporous Carbon for an Improved Supercapacitor Performance

2018 ◽  
Vol 165 (14) ◽  
pp. A3369-A3379 ◽  
Author(s):  
Tadepalli Mitravinda ◽  
Katchala Nanaji ◽  
Srinivasan Anandan ◽  
Adduru Jyothirmayi ◽  
Venkata Sai Kiran Chakravadhanula ◽  
...  
Keyword(s):  
Nanoporous Carbon ◽  
Facile Synthesis ◽  
Corn Silk ◽  
Supercapacitor Performance

Facile synthesis of crystalline RuSe2 nanoparticles as a novel pseudocapacitive electrode material for supercapacitors

2019 ◽  
Vol 55 (82) ◽  
pp. 12320-12323 ◽  
Author(s):  
Xiaoru Yun ◽  
Shanglin Wu ◽  
Jingying Li ◽  
Linshuo Li ◽  
Ji Zhou ◽  
...  
Keyword(s):  
Electrode Material ◽  
Facile Synthesis

Crystalline RuSe2 nanoparticles were firstly utilized as a pseudocapacitive electrode material for supercapacitors, and superior capacitive behaviors were observed.

scholarly journals Egg Albumin-Assisted Hydrothermal Synthesis of Co3O4 Quasi-Cubes as Superior Electrode Material for Supercapacitors with Excellent Performances

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Jiale Sun ◽  
Ya Wang ◽  
Yanfei Zhang ◽  
Chunju Xu ◽  
Huiyu Chen
Keyword(s):  
Electrode Material ◽  
Aqueous Electrolyte ◽  
Hydrothermal Reaction ◽  
Electrode System ◽  
Electrochemical Performances ◽  
Discharge Process ◽  
Rate Performance ◽  
Egg Albumin ◽  
Size And Morphology ◽  
Total Specific Surface Area

Abstract Novel Co3O4 quasi-cubes with layered structure were obtained via two-step synthetic procedures. The precursors were initially prepared via hydrothermal reaction in the presence of egg albumin, and then the precursors were directly annealed at 300 °C in air to be converted into pure Co3O4 powders. It was found that the size and morphology of final Co3O4 products were greatly influenced by the amount of egg albumin and hydrothermal durations, respectively. Such layered Co3O4 cubes possessed a mesoporous nature with a mean pore size of 5.58 nm and total specific surface area of 80.3 m2/g. A three-electrode system and 2 M of KOH aqueous electrolyte were employed to evaluate the electrochemical properties of these Co3O4 cubes. The results indicated that a specific capacitance of 754 F g−1 at 1 A g−1 was achieved. In addition, the Co3O4 cubes-modified electrode exhibited an excellent rate performance of 77% at 10 A g−1 and superior cycling durability with 86.7% capacitance retention during 4000 repeated charge-discharge process at 5 A g−1. Such high electrochemical performances suggest that these mesoporous Co3O4 quasi-cubes can serve as an important electrode material for the next-generation advanced supercapacitors in the future.

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