Three-dimensional porous graphene/polyaniline composites for high-rate electrochemical capacitors

2014 ◽  
Vol 2 (41) ◽  
pp. 17489-17494 ◽  
Author(s):  
Qinqin Zhou ◽  
Yingru Li ◽  
Liang Huang ◽  
Chun Li ◽  
Gaoquan Shi
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Three Dimensional ◽  
Electrochemical Capacitors ◽  
Rate Capability ◽  
High Rate ◽  
Porous Graphene ◽  
Reduced Graphene ◽  
Polyaniline Composites ◽  
Porous Composites

Three-dimensional porous composites of reduced graphene oxide and polyaniline prepared by electro-codeposition exhibited much higher areal specific capacitances and greatly improved rate capability compared with those of their individual components.

scholarly journals Further Thermal Reduction of Reduced Graphene Oxide Aerogel with Excellent Rate Performance for Supercapacitors

2019 ◽  
Vol 9 (11) ◽  
pp. 2188 ◽  
Author(s):  
Peihui Luo ◽  
Ying Lin
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Current Density ◽  
Three Dimensional ◽  
Rate Capability ◽  
Thermal Reduction ◽  
High Rate ◽  
Rate Performance ◽  
Freeze Dried ◽  
Reduced Graphene

Preparation of pure three-dimensional graphene (3DG) with high rate performance for supercapacitors is critical for fast rate charge/discharge. Here, 3DG was prepared via thermal annealing of freeze-dried reduced graphene oxide (RGO) hydrogel under inert gas protection. The formed 3DG as an electrode material for supercapacitors revealed a specific capacitance of 115 F·g−1 at a current density of 1 A·g−1, and a high capacitance retention of 70% as current density increased to 40 A·g−1. The excellent rate capability was mainly attributed to the reserved porous structure and higher electrical conductivity for 3DG after thermal reduction than its RGO hydrogel precursor.

High-rate capability of Na2FePO4F nanoparticles by enhancing surface carbon functionality for Na-ion batteries

2017 ◽  
Vol 5 (35) ◽  
pp. 18707-18715 ◽  
Author(s):  
Jesse S. Ko ◽  
Vicky V. T. Doan-Nguyen ◽  
Hyung-Seok Kim ◽  
Xavier Petrissans ◽  
Ryan H. DeBlock ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Rate Capability ◽  
High Rate ◽  
Charge Storage ◽  
High Rate Capability ◽  
Surface Carbon ◽  
Reduced Graphene ◽  
Kinetics Of

Na-ion charge-storage kinetics of polyol-derived Na2FePO4F are enhanced by using a nanocomposite comprising nanoparticles and reduced graphene oxide.

Li4Ti5O12/Reduced Graphene Oxide composite as a high rate capability material for lithium ion batteries

2013 ◽  
Vol 236 ◽  
pp. 30-36 ◽  
Author(s):  
Qian Zhang ◽  
Wenjie Peng ◽  
Zhixing Wang ◽  
Xinhai Li ◽  
Xunhui Xiong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
High Rate Capability ◽  
Oxide Composite ◽  
Reduced Graphene

High-rate sodium insertion/extraction into silicon oxycarbide-reduced graphene oxide

2020 ◽  
Vol 44 (33) ◽  
pp. 14035-14040
Author(s):  
Rio Nugraha Putra ◽  
Martin Halim ◽  
Ghulam Ali ◽  
Shoyebmohamad F. Shaikh ◽  
Abdullah M. Al-Enizi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Silicon Oxycarbide ◽  
High Rate ◽  
High Rate Capability ◽  
Reduced Graphene

Silicone oxycarbide (SiOC) is gaining attention as a potential anode material for lithium-ion batteries due to its higher reversible capacity and high-rate capability.

Synthesis of hydrogenated TiO2–reduced-graphene oxide nanocomposites and their application in high rate lithium ion batteries

2014 ◽  
Vol 2 (24) ◽  
pp. 9150-9155 ◽  
Author(s):  
Jie Wang ◽  
Laifa Shen ◽  
Ping Nie ◽  
Guiyin Xu ◽  
Bing Ding ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
Capacity Retention ◽  
One Pot ◽  
Reduced Graphene

Hydrogenated TiO2–RGO nanocomposites have been synthesized via a facile one-pot hydrogenation, which exhibit superior rate capability and outstanding capacity retention.

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