scholarly journals Novel π-conjugated iron oxide/reduced graphene oxide nanocomposites for high performance electrochemical supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 327-335 ◽  
Author(s):  
Gourav Bhattacharya ◽  
Ganeshlenin Kandasamy ◽  
Navneet Soin ◽  
Ravi Kant Upadhyay ◽  
Sujit Deshmukh ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Iron Oxide ◽  
Specific Capacitance ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Cyclic Stability ◽  
Electrochemical Supercapacitors ◽  
Capacitive Performance ◽  
Reduced Graphene

Nanocomposite of π-conjugated 2-aminoterephthalic acid (ATA) coated iron oxide (Fe3O4) nanoparticles and reduced graphene oxide (RGO) provides an enhanced capacitive performance with higher specific capacitance and long term cyclic stability.

Reduced graphene oxide nanosheet modified NiMn-LDH nanoflake arrays for high-performance supercapacitors

2018 ◽  
Vol 54 (72) ◽  
pp. 10172-10175 ◽  
Author(s):  
Li Sun ◽  
Yuanxing Zhang ◽  
Yu Zhang ◽  
Haochen Si ◽  
Wenpeng Qin ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Graphene Oxide Nanosheets ◽  
Ni Foam ◽  
Capacitive Performance ◽  
Array Electrode ◽  
Reduced Graphene ◽  
Graphene Oxide Nanosheet

Reduced graphene oxide nanosheets are used to modify a Ni foam-supported NiMn-LDH nanoflake array electrode, showing enhanced capacitive performance.

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.

Nitrogen-Enriched Reduced Graphene Oxide for High Performance Supercapacitor Electrode

2020 ◽  
Vol 20 (8) ◽  
pp. 4854-4859 ◽  
Author(s):  
Lei Chen ◽  
Xu Chen ◽  
Yaqiong Wen ◽  
Bixia Wang ◽  
Yangchen Wu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Graphene Oxide ◽  
Specific Capacitance ◽  
Reduced Graphene Oxide ◽  
Electrode Material ◽  
High Performance ◽  
Electrode Materials ◽  
Electrochemical Impedance ◽  
Oxide Electrode ◽  
Reduced Graphene

Nitrogen-enriched reduced graphene oxide electrode material can be successfully prepared through a simple hydrothermal method. The morphology and microstructure of ready to use electrode material is measured by field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD). Physical characterizations revealed that nitrogen-enriched reduced graphene oxide electrode material possessed high specific surface area of 429.6 m2 · g−1, resulting in high utilization of electrode materials with electrolyte. Electrochemical performance of nitrogen-enriched reduced graphene oxide electrode was also investigated by cyclic voltammetry (CV), galvanostatic charge/discharge measurements and electrochemical impedance spectroscopy (EIS) in aqueous in 6 M KOH with a three-electrode system, which displayed a high specific capacitance about 223.5 F · g−1 at 1 mV · s−1. More importantly, nitrogenenriched reduced graphene oxide electrode exhibited outstanding stability with 100% coulombic efficiency and with no specific capacitance loss under 2 A · g−1 after 10000 cycles. The supercapacitive behaviors indicated that nitrogen-enriched reduced graphene oxide can be a used as a promising electrode for high-performance super-capacitors.

Sandwich-structured MnO2/polypyrrole/reduced graphene oxide hybrid composites for high-performance supercapacitors

RSC Advances ◽  
2014 ◽  
Vol 4 (20) ◽  
pp. 9898-9904 ◽  
Author(s):  
Guangqiang Han ◽  
Yun Liu ◽  
Erjun Kan ◽  
Jian Tang ◽  
Lingling Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Specific Capacitance ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Hybrid Composites ◽  
Reduced Graphene ◽  
Maximum Specific Capacitance

Sandwich-structured hierarchical (MnO2, PPy)/rGO nanosheets composites exhibited a maximum specific capacitance of 404 F g−1 and ∼91% of capacitance retention over 5000 cycling.

scholarly journals A corn-inspired structure design for an iron oxide fiber/reduced graphene oxide composite as a high-performance anode material for Li-ion batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (71) ◽  
pp. 44874-44883 ◽  
Author(s):  
Jianxin Cai ◽  
Pengfei Zhao ◽  
Zhipeng Li ◽  
Wei Li ◽  
Jing Zhong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Iron Oxide ◽  
Reduced Graphene Oxide ◽  
Anode Material ◽  
High Performance ◽  
Structure Design ◽  
Li Ion Batteries ◽  
Oxide Composite ◽  
Reduced Graphene ◽  
Li Ion

A porous iron oxide fiber/reduced graphene oxide composite with a corn-inspired structure design as a high-performance anode material for li-ion batteries.

A high-performance current collector-free flexible in-plane micro-supercapacitor based on a highly conductive reduced graphene oxide film

2016 ◽  
Vol 4 (41) ◽  
pp. 16213-16218 ◽  
Author(s):  
Mingmao Wu ◽  
Yingru Li ◽  
Bowen Yao ◽  
Ji Chen ◽  
Chun Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxide Film ◽  
Specific Capacitance ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Current Collector ◽  
Cycling Stability ◽  
Electrochemical Activation ◽  
Reduced Graphene ◽  
Excellent Cycling Stability

A flexible in-plane micro-supercapacitor fabricated by laser carving a highly conductive reduced graphene oxide film and electrochemical activation exhibits high areal specific capacitance and excellent cycling stability.

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