Multi-porous Co3O4 nanoflakes @ sponge-like few-layer partially reduced graphene oxide hybrids: towards highly stable asymmetric supercapacitors

2017 ◽  
Vol 5 (24) ◽  
pp. 12569-12577 ◽  
Author(s):  
Mohammad Qorbani ◽  
Tsu-chin Chou ◽  
Yi-Hsin Lee ◽  
Satyanarayana Samireddi ◽  
Naimeh Naseri ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Fast Rate ◽  
Rate Capability ◽  
Asymmetric Supercapacitors ◽  
Reduced Graphene ◽  
Partially Reduced Graphene Oxide

Co3O4 nanoflakes show fast rate capability and superior stability due to the conductivity and well-tuned porosity of spongy-like reduced graphene oxide networks.

scholarly journals Correction: Multi-porous Co3O4 nanoflakes@sponge-like few-layer partially reduced graphene oxide hybrids: towards highly stable asymmetric supercapacitors

2017 ◽  
Vol 5 (24) ◽  
pp. 12578-12578
Author(s):  
Mohammad Qorbani ◽  
Tsu-chin Chou ◽  
Yi-Hsin Lee ◽  
Satyanarayana Samireddi ◽  
Naimeh Naseri ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Asymmetric Supercapacitors ◽  
Reduced Graphene ◽  
Partially Reduced Graphene Oxide

Correction for ‘Multi-porous Co3O4 nanoflakes@sponge-like few-layer partially reduced graphene oxide hybrids: towards highly stable asymmetric supercapacitors’ by Mohammad Qorbani et al., J. Mater. Chem. A, 2017, DOI: 10.1039/c7ta00694b.

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.

Low-defect K2Mn[Fe(CN)6]-reduced graphene oxide composite for high-performance potassium-ion batteries

2021 ◽  
Author(s):  
Juan Zhang ◽  
Leqing Deng ◽  
Meiying Feng ◽  
Liang Zeng ◽  
Miao Hu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cathode Material ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Fast Rate ◽  
Rate Capability ◽  
Potassium Ion ◽  
Oxide Composite ◽  
Reduced Graphene ◽  
Excellent Cycling Stability

Here, a low-defect K2Mn[Fe(CN)6]-reduced graphene oxide (KMF-RGO) composite is fabricated, which demonstrates excellent cycling stability, fast rate capability, and exceptional air stability as a cathode material for potassium-ion batteries (KIBs)....

Self-Assembly Synthesis and Electrochemical Performance of Partially Reduced Graphene Oxide Supported Hierarchical MnO2 Nanonocomposite for Supercapacitor

2019 ◽  
Vol 41 (4) ◽  
pp. 577-577
Author(s):  
Muhammad Ishaq Muhammad Ishaq ◽  
Maher Jabeen Maher Jabeen ◽  
and Weiming Song and Weiming Song
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrode Materials ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Great Promise ◽  
Hexadecyltrimethylammonium Bromide ◽  
Reduced Graphene ◽  
Hierarchical Porous ◽  
Partially Reduced Graphene Oxide

Partially reduced graphene oxide supported hierarchical birnessite-type manganese oxide (MnO2) nanonocomposite (MnO2-pGO) with large surface area (116 m2 g-1) were successfully synthesized by a facile ultrahigh dilute vesicle solution approach, via surfactant Hexadecyltrimethylammonium bromide (CTAB) and sodium dodecylbenzenesulfonate (SDBS), as a structure-directing agent. The resultant structure exhibit hierarchical porous MnO2 nanocluster, which were self-assembled from elongated nanorods and grafted successfully on the surface of the pGO nanosheets. Furthermore, the obtained MnO2-pGO nanocomposite was found to exhibit favorable electrochemical activity showing ultra-high specific capacitance of (282 F/g at 0.5 A/g), the enhanced rate capability of (67.7%) at 10 A/g), the most stable capacitance retention (91.4 %of its initial capacitance was retains after 5000 cycles, with ∼100% Coulombic efficiency). The result suggests that the approach is not only effective to deposit MnO2 over the pGO sheets, but also offered great promise to prepare other pGO- metal oxide composite electrode materials for supercapacitor.

Polyacrylonitrile modified partially reduced graphene oxide composites for the extraction of Hg(II) ions from polluted water

2021 ◽  
Vol 56 (13) ◽  
pp. 7982-7999
Author(s):  
Fathi S. Awad ◽  
Khaled M. AbouZied ◽  
Ayyob M. Bakry ◽  
Weam M. Abou El-Maaty ◽  
Ahmad M. El-Wakil ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Polluted Water ◽  
Reduced Graphene ◽  
Partially Reduced Graphene Oxide ◽  
Oxide Composites

A composite of CoNiP quantum dots decorating reduced graphene oxide as a sulfur host for Li-S batteries

2021 ◽  
Author(s):  
Tingjiao Xiao ◽  
Fengjin Yi ◽  
Mingzhi Yang ◽  
Weiliang Liu ◽  
Mei Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Rate Capability ◽  
Cycling Performance ◽  
Practical Application ◽  
Shuttle Effect ◽  
Reduced Graphene ◽  
Sulfur Host ◽  
Kinetics Of

The “shuttle effect” and sluggish reaction kinetics of lithium polysulfides lead to inferior cycling performance and rate capability of Li-S batteries, which hurdles their practical application. Herein, a composite of...

Synthesis and Stability of Water-in-Oil Emulsion Using Partially Reduced Graphene Oxide as a Tailored Surfactant

Langmuir ◽  
2017 ◽  
Vol 33 (39) ◽  
pp. 10311-10321 ◽  
Author(s):  
Tanesh D. Gamot ◽  
Arup Ranjan Bhattacharyya ◽  
Tam Sridhar ◽  
Fiona Beach ◽  
Rico F. Tabor ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Oil Emulsion ◽  
Reduced Graphene ◽  
Partially Reduced Graphene Oxide ◽  
Stability Of Water ◽  
Water In Oil Emulsion

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.

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