Non-covalently functionalizing a graphene framework by anthraquinone for high-rate electrochemical energy storage

RSC Advances ◽  
2015 ◽  
Vol 5 (30) ◽  
pp. 23942-23951 ◽  
Author(s):  
Ning An ◽  
Fuhai Zhang ◽  
Zhongai Hu ◽  
Zhimin Li ◽  
Li Li ◽  
...  
Keyword(s):  
Energy Storage ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Covalent Modification ◽  
High Rate ◽  
Electrochemical Energy Storage ◽  
Long Cycle Life ◽  
Redox Couples ◽  
Reversible Redox ◽  
Good Rate Capability

Anthraquinone (AQ) with electrochemically reversible redox couples is selected to functionalize graphene framework (GF) through non-covalent modification and the composite achieves high specific capacitance, good rate capability and long cycle life.

scholarly journals A porous graphene–NiFe2O4 nanocomposite with high electrochemical performance and high cycling stability for energy storage applications

2020 ◽  
Vol 2 (9) ◽  
pp. 4229-4241 ◽  
Author(s):  
Meenaketan Sethi ◽  
U. Sandhya Shenoy ◽  
D. Krishna Bhat
Keyword(s):  
Energy Storage ◽  
Electrochemical Performance ◽  
Solvothermal Synthesis ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
High Rate ◽  
High Rate Capability ◽  
Porous Graphene ◽  
Energy Storage Applications

Solvothermal synthesis of a porous graphene–NiFe2O4 nanocomposite exhibiting high specific capacitance and high rate capability along with high cycling stability.

Hybrid nanostructured C-dot decorated Fe3O4electrode materials for superior electrochemical energy storage performance

2015 ◽  
Vol 44 (19) ◽  
pp. 9221-9229 ◽  
Author(s):  
K. Bhattacharya ◽  
P. Deb
Keyword(s):  
Quantum Dots ◽  
Energy Storage ◽  
Specific Capacitance ◽  
High Specific Capacitance ◽  
Carbon Quantum Dots ◽  
Electrochemical Energy Storage ◽  
The Novel ◽  
Hybrid Nanocomposite ◽  
Storage Performance ◽  
Electrochemical Energy

Here, the novel Fe3O4-C hybrid nanocomposite demonstrates high specific capacitance (S.C.) than the pristine Fe3O4nanospheres due to the presence of the highly conducting carbon quantum dots.

Highly ordered nanoscale phosphomolybdate-grafted polyaniline/metal hybrid layered structures prepared via secondary sputtering phenomenon as high-performance pseudocapacitor electrodes

2021 ◽  
Author(s):  
Eun Seop Yoon ◽  
Bong Gill Choi ◽  
Hwan-Jin Jeon
Keyword(s):  
Electron Transfer ◽  
Aspect Ratio ◽  
Electrochemical Performance ◽  
High Aspect Ratio ◽  
High Performance ◽  
Electrode Materials ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
High Rate ◽  
Large Area

Abstract The development of energy storage electrode materials is important for enhancing the electrochemical performance of supercapacitors. Despite extensive research on improving electrochemical performance with polymer-based materials, electrode materials with micro/nanostructures are needed for fast and efficient ion and electron transfer. In this work, highly ordered phosphomolybdate (PMoO)-grafted polyaniline (PMoO-PAI) deposited onto Au hole-cylinder nanopillar arrays is developed for high-performance pseudocapacitors. The three-dimensional nanostructured arrays are easily fabricated by secondary sputtering lithography, which has recently gained attention and features a high resolution of 10 nm, a high aspect ratio greater than 20, excellent uniformity/accuracy/precision, and compatibility with large area substrates. These 10nm scale Au nanostructures with a high aspect ratio of ~30 on Au substrates facilitate efficient ion and electron transfer. The resultant PMoO-PAI electrode exhibits outstanding electrochemical performance, including a high specific capacitance of 114 mF/cm2, a high-rate capability of 88%, and excellent long-term stability.

Fast and Scalable Hydrodynamic Synthesis of MnO2/Defect-Free Graphene Nanocomposites with High Rate Capability and Long Cycle Life

2018 ◽  
Vol 10 (41) ◽  
pp. 35250-35259 ◽  
Author(s):  
Seok Bok Hong ◽  
Jae-Min Jeong ◽  
Heon Gyu Kang ◽  
Donghyuk Seo ◽  
Younghyun Cha ◽  
...  
Keyword(s):  
Rate Capability ◽  
Cycle Life ◽  
High Rate ◽  
High Rate Capability ◽  
Graphene Nanocomposites ◽  
Long Cycle ◽  
Long Cycle Life ◽  
Free Graphene

High-Rate Aqueous-Based Supercapacitors at -30 oC drived by Novel 1D Ni(OH)2 Nanorods and Two-Solute Electrolyte

2021 ◽  
Author(s):  
Wutao Wei ◽  
Weihua Chen ◽  
Liwei Mi ◽  
Jiaqiang Xu ◽  
Jiujun Zhang
Keyword(s):  
Energy Storage ◽  
Low Temperatures ◽  
High Rate ◽  
Electrochemical Energy Storage ◽  
Polar Regions ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Electrochemical Energy

Extreme application environments, such as the exploration of space and the living in Polar Regions, require the electrochemical energy storage devices to operate well at ultra-low temperatures. Aqueous-based supercapacitors (ASCs)...

NiCo-LDH/Ti3C2 MXene hybrid materials for lithium ion battery with high-rate capability and long cycle life

2020 ◽  
Vol 50 ◽  
pp. 143-153 ◽  
Author(s):  
Rui Zhang ◽  
Zhe Xue ◽  
Jiaqian Qin ◽  
Montree Sawangphruk ◽  
Xinyu Zhang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Hybrid Materials ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycle Life ◽  
High Rate ◽  
High Rate Capability ◽  
Long Cycle ◽  
Long Cycle Life

Ultrahigh-Capacity Organic Anode with High-Rate Capability and Long Cycle Life for Lithium-Ion Batteries

2017 ◽  
Vol 2 (9) ◽  
pp. 2140-2148 ◽  
Author(s):  
Yan Wang ◽  
Yonghong Deng ◽  
Qunting Qu ◽  
Xueying Zheng ◽  
Jingyu Zhang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycle Life ◽  
High Rate ◽  
High Rate Capability ◽  
Long Cycle ◽  
Long Cycle Life

Controllable synthesis of 3D hierarchical bismuth compounds with good electrochemical performance for advanced energy storage devices

RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 51773-51778 ◽  
Author(s):  
Jinfeng Sun ◽  
Jinqing Wang ◽  
Zhangpeng Li ◽  
Zhigang Yang ◽  
Shengrong Yang
Keyword(s):  
Energy Storage ◽  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Controllable Synthesis ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Bismuth Compounds

3D hierarchical bismuth (Bi)-based compounds with controllable sizes and morphologies exhibit high specific capacitance and superior rate capability.

scholarly journals Dissected carbon nanotubes functionalized by 1-hydroxyanthraquinone for high-performance asymmetric supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (76) ◽  
pp. 48341-48353 ◽  
Author(s):  
Xia Yang ◽  
Yuying Yang ◽  
Quancai Zhang ◽  
Xiaotong Wang ◽  
Yufeng An ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Specific Capacitance ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Covalent Modification ◽  
Asymmetric Supercapacitors ◽  
Reduced Graphene

1-Hydroxyanthraquinone (HAQ) is selected to functionalize the dissected carbon nanotubes (rDCNTs) with reduced graphene oxide layers through non-covalent modification. The composite achieves high specific capacitance and ultrahigh rate capability.

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