Synthesis of urchin-like Ni3Si2O5(OH)4 hierarchical hollow spheres/GO composite with enhanced electrochemical properties for high-performance hybrid supercapacitors

2019 ◽  
Vol 48 (31) ◽  
pp. 11749-11762 ◽  
Author(s):  
Xueying Dong ◽  
Yifu Zhang ◽  
Qiushi Wang ◽  
Xiaorong Zhang ◽  
Meng Gao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Hollow Sphere ◽  
High Performance ◽  
Hollow Spheres ◽  
Capacity Retention ◽  
Hybrid Supercapacitors ◽  
Enhanced Electrochemical Performance

Urchin-like Ni3Si2O5(OH)4 hierarchical hollow sphere/GO composites were synthesized, which showed an enhanced electrochemical performance of 165 F g−1 at 0.5 A g−1 and 84% capacity retention after 5000 cycles.

Facile fabrication of carbon-coated spinel nickel cobalt sulfide hollow sphere to achieve high-performance for supercapacitors

2021 ◽  
Author(s):  
Zhongbing Wang ◽  
Yonghao Hao ◽  
Wenjun Zhang ◽  
Jingyuan Fang ◽  
Chunnian Chen
Keyword(s):  
Electrochemical Properties ◽  
Hollow Sphere ◽  
High Performance ◽  
Hollow Spheres ◽  
Cobalt Sulfide ◽  
Simple Method ◽  
Nickel Cobalt ◽  
Carbon Coated ◽  
Facile Fabrication

This paper presents a simple method to prepare carbon-coated spinel nickel-cobalt sulfide metal hollow spheres with excellent electrochemical properties, which can be considered as promising materials for supercapacitors. A type...

Cobalt-doped Zn2GeO4 nanorods assembled into hollow spheres as high-performance anode materials for lithium-ion batteries

2018 ◽  
Vol 6 (14) ◽  
pp. 5926-5934 ◽  
Author(s):  
Jiaxue Lu ◽  
Deli Li ◽  
Li Li ◽  
Yao Chai ◽  
Meng Li ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Enhanced Electrochemical Performance ◽  
Co Doped

The synthesis of novel Co doped Zn2GeO4 hollow micro-spheres and the enhanced electrochemical performance for lithium-ion batteries.

Preparation and Electrochemical Properties of Si@C/Graphite Composite as Anode for Lithium-Ion Batteries

2019 ◽  
Vol 807 ◽  
pp. 74-81
Author(s):  
Ying Wang ◽  
Wei Ruan ◽  
Ren Heng Tang ◽  
Fang Ming Xiao ◽  
Tai Sun ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Retention Rate ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Capacity Retention ◽  
Graphite Composite ◽  
Discharge Specific Capacity ◽  
Enhanced Electrochemical Performance

In this study, Si@C/Graphite composite anodes were synthesized through spray drying and pyrolysis using silica, artificial graphite, and two kinds of organics (phenolic resin or pitch). The Si@PR-C/Graphite exhibits enhanced electrochemical performance for lithium-ion batteries. The first charge-discharge specific capacity is 512.8mAh/g and 621.8mAh/g, respectively, the initial coulombic efficiency is 82.5% at 100mA/g, and its capacity retention rate reached as high as 85.4% with the capacity fade rate of less than 0.18% per cycle after 85 cycles. The Si@PI-C/Graphite also presents excellent discharge specific capacity of 702.8mAh/g with the capacity retention rate of 76.9% after 30 cycles. Mechanisms for high electrochemical performances of the Si@C/Graphite composite anode are discussed. It found that the enhanced electrochemical performance due to the formation of core/shell microstructure. These encouraging experimental results suggest that proper organic carbon source has great potential for improvement of electrochemical properties of pure silicon as anode. Key words:lithium-ion batteries; anode; Si@C/Graphite composite; electrochemical performance

Self-assembly synthesis of nitrogen-doped mesoporous carbons used as high-performance electrode materials in lithium-ion batteries and supercapacitors

2017 ◽  
Vol 41 (21) ◽  
pp. 12901-12909 ◽  
Author(s):  
Chunfeng Shao ◽  
Ziqiang Wang ◽  
Errui Wang ◽  
Shujun Qiu ◽  
Hailiang Chu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Self Assembly ◽  
High Performance ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Mesoporous Carbons ◽  
Nitrogen Doped ◽  
First Time ◽  
Enhanced Electrochemical Performance

Guanine was, for the first time, used as a nitrogen source during the synthesis of nitrogen-doped porous carbons (NMCs) with enhanced electrochemical performance.

Unusual morphologies of reduced graphene oxide and polyaniline nanofibers-reduced graphene oxide composites for high performance supercapacitor applications

RSC Advances ◽  
2014 ◽  
Vol 4 (43) ◽  
pp. 22551-22560 ◽  
Author(s):  
Rahul S. Diggikar ◽  
Dattatray J. Late ◽  
Bharat B. Kale
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Polyaniline Nanofibers ◽  
Pani Nanofibers ◽  
Reduced Graphene ◽  
Oxide Composites ◽  
Enhanced Electrochemical Performance ◽  
Supercapacitor Applications

The unique morphologies of reduced graphene oxide (RGO) and RGO–PANI nanofibers (NF) composites have been demonstrated. The enhanced electrochemical performance was observed for honeycomb like RGO–PANI NFs composites.

Enhanced electrochemical properties of a natural graphite anode using a promising crosslinked ionomer binder in Li-ion batteries

2017 ◽  
Vol 41 (20) ◽  
pp. 11759-11765 ◽  
Author(s):  
Shu Huang ◽  
Jianguo Ren ◽  
Rong Liu ◽  
Min Yue ◽  
Youyuan Huang ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Graphite Anode ◽  
Li Ion Batteries ◽  
Natural Graphite ◽  
Graphite Anodes ◽  
Li Ion ◽  
Enhanced Electrochemical Performance ◽  
Natural Graphite Anode

A crosslinked ionomer binder was prepared and used in graphite anodes for Li-ion batteries. These binder-based anodes exhibit enhanced electrochemical performance due to the formation of hydrogen bonds and the release of conductive Li+.

Construction of Sb2Se3 nanocrystals on Cu2−xSe@C nanosheets for high performance lithium storage

2019 ◽  
Vol 43 (35) ◽  
pp. 14066-14073
Author(s):  
Hailong Yue ◽  
Qi Tian ◽  
Guangming Wang ◽  
Rencheng Jin ◽  
Qingyao Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Lithium Storage ◽  
Enhanced Electrochemical Performance

Cu2−xSe@C@Sb2Se3 with enhanced electrochemical performance was designed and fabricated, where Sb2Se3 nanoparticles were anchored on Cu2−xSe@C nanosheets.

Mesoporous nickel cobalt manganese sulfide yolk–shell hollow spheres for high-performance electrochemical energy storage

2019 ◽  
Vol 6 (7) ◽  
pp. 1851-1860 ◽  
Author(s):  
Chengzhen Wei ◽  
Qingyun Chen ◽  
Cheng Cheng ◽  
Ran Liu ◽  
Qiang Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochemical Performance ◽  
High Performance ◽  
Manganese Sulfide ◽  
Hollow Spheres ◽  
Electrochemical Energy Storage ◽  
Nickel Cobalt ◽  
Excellent Electrochemical Performance ◽  
Electrochemical Energy

Mesoporous Ni–Co–Mn sulfide yolk–shell hollow spheres have been prepared via a self-template route and show excellent electrochemical performance in supercapacitors.

MOF-derived Co9S8 polyhedrons on NiCo2S4 nanowires for high-performance hybrid supercapacitors

2020 ◽  
Vol 7 (21) ◽  
pp. 4092-4100
Author(s):  
Yu Liu ◽  
Zhenlin Ma ◽  
Haoting Niu ◽  
Qingjun Yang ◽  
Hong Jia ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Hybrid Supercapacitors

MOF-derived Co9S8 polyhedron coating on NiCo2S4 nanowires prepared by an in situ controllable method showed superior electrochemical performance in hybrid supercapacitors.

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