Three dimensional (3D) flexible graphene foam/polypyrrole composite: towards highly efficient supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 3999-4008 ◽  
Author(s):  
Sakineh Chabi ◽  
Chuang Peng ◽  
Zhuxian Yang ◽  
Yongde Xia ◽  
Yanqiu Zhu
Keyword(s):  
Electrochemical Performance ◽  
Three Dimensional ◽  
Graphene Foam ◽  
3D Graphene ◽  
3 Dimensional ◽  
Highly Efficient ◽  
Polypyrrole Composite

Polypyrrole (PPY) functionalized 3 dimensional (3D) graphene foam (GF) with remarkable electrochemical performance has been synthesized in this work.

Graphene aerogel-supported and graphene quantum dots-modified γ-MnOOH nanotubes as a highly efficient electrocatalyst for oxygen reduction reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (49) ◽  
pp. 43116-43126 ◽  
Author(s):  
Yisi Liu ◽  
Wenzhang Li ◽  
Jie Li ◽  
Haibo Shen ◽  
Yaomin Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Graphene Quantum Dots ◽  
Three Dimensional ◽  
Reduction Reaction ◽  
Graphene Aerogel ◽  
3D Graphene ◽  
Highly Efficient

In this work, we demonstrate a facile strategy to synthesize a novel three-dimensional (3D) graphene aerogel-supported and graphene quantum dots-modified γ-MnOOH nanotubes as a highly efficient electrocatalyst.

A 3D graphene-supported MoS2 nanosphere and nanosheet heterostructure as a highly efficient free-standing hydrogen evolution electrode

RSC Advances ◽  
2016 ◽  
Vol 6 (37) ◽  
pp. 31359-31362 ◽  
Author(s):  
Xuewan Wang
Keyword(s):  
Hydrogen Evolution ◽  
Superior Performance ◽  
Free Standing ◽  
Graphene Foam ◽  
3D Graphene ◽  
Highly Efficient

A free-standing electrocatalytic electrode was synthesized by uniformly depositing cross-distributed MoS2 nanospheres and nanosheets on a 3D graphene foam, which exhibited superior performance for hydrogen evolution.

Cl-Doped ZnO Nanowire Arrays on 3D Graphene Foam with Highly Efficient Field Emission and Photocatalytic Properties

Small ◽  
2015 ◽  
Vol 11 (36) ◽  
pp. 4785-4792 ◽  
Author(s):  
Dali Shao ◽  
Jian Gao ◽  
Guoqing Xin ◽  
Yiping Wang ◽  
Lu Li ◽  
...  
Keyword(s):  
Field Emission ◽  
Nanowire Arrays ◽  
Photocatalytic Properties ◽  
Zno Nanowire ◽  
Graphene Foam ◽  
3D Graphene ◽  
Highly Efficient ◽  
Zno Nanowire Arrays ◽  
Doped Zno

scholarly journals Synergy of nano-ZnO and 3D-graphene foam electrodes for asymmetric supercapacitor devices

Nanoscale ◽  
2020 ◽  
Vol 12 (24) ◽  
pp. 12790-12800 ◽  
Author(s):  
Maryam Toufani ◽  
Sibel Kasap ◽  
Ali Tufani ◽  
Feray Bakan ◽  
Stefan Weber ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Asymmetric Supercapacitor ◽  
Defect Structures ◽  
Graphene Foam ◽  
Nano Zno ◽  
3D Graphene ◽  
Zno Nanocrystal

Combination of EPR and Photoluminescence data on the defect structures of sub-50 nm ZnO nanocrystal electrodes revealed extensive control of electrochemical performance of the supercapacitor devices.

scholarly journals Fabrication of 3D monolithic graphene foam/polycaprolactone porous nanocomposites for bioapplications

2020 ◽  
Vol 56 (9) ◽  
pp. 5581-5594
Author(s):  
Neda Bahremandi Tolou ◽  
Hamidreza Salimijazi ◽  
Theodoros Dikonimos ◽  
Giuliana Faggio ◽  
Giacomo Messina ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Three Dimensional ◽  
Chemical Vapor ◽  
Porous Polymer ◽  
Nerve Tissue ◽  
Inductive Heating ◽  
Chemical Vapor Deposition Growth ◽  
Graphene Foam ◽  
3D Graphene ◽  
Process Architecture

Abstract Aiming at the production of light, porous, conductive, biosafe composites, in this paper we are presenting a novel fabrication method for monolithic, three-dimensional (3D) graphene foam (GF)/porous polymer composites. The synthesis adopts a novel process architecture by using Ni foam templates in an inductive heating chemical vapor deposition growth process, and by removing Ni chemically while retaining graphene integrity by the reversible application of cyclododecane (CD); finally, nondestructive coating procedures with polycaprolactone (PCL) solutions have been developed. The composites can be optimized to enhance electrical conduction, flexibility and mechanical properties, while mixing PCL and CD allows to coat the GF with a novel mesoporous polymer coating. By tuning the GF properties, the typical electrical resistance of the 3D forms can be reduced to a few 10 s of Ohms, values that are maintained after the PCL coatings. The current study achieved a GF fraction ranging between 1 and 7.3 wt%, with even the lower graphene content composites showing acceptable electrical and mechanical properties. The properties of these conductive 3D-GF/PCL composites are in line with the requirements for applications in the field of nerve tissue engineering. Graphical abstract

Anchoring ultrafine Pt nanoparticles on the 3D hierarchical self-assembly of graphene/functionalized carbon black as a highly efficient oxygen reduction catalyst for PEMFCs

2018 ◽  
Vol 6 (31) ◽  
pp. 15074-15082 ◽  
Author(s):  
Xuejun Tang ◽  
Yachao Zeng ◽  
Longsheng Cao ◽  
Limeng Yang ◽  
Zhiqiang Wang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Carbon Black ◽  
Electrochemical Performance ◽  
Oxygen Reduction ◽  
Self Assembly ◽  
Pt Nanoparticles ◽  
Hierarchical Architecture ◽  
3D Graphene ◽  
Highly Efficient ◽  
Oxygen Reduction Catalyst

Ultrafine Pt nanoparticles decorated 3D graphene-based hierarchical architecture demonstrates superior electrochemical performance in fuel cell.

scholarly journals Polymer-assisted synthesis and applications of hydroxyapatite (HAp) anchored nitrogen-doped 3D graphene foam-based nanostructured ceramic framework

RSC Advances ◽  
2020 ◽  
Vol 10 (30) ◽  
pp. 17918-17929 ◽  
Author(s):  
Murugesan Manoj ◽  
Jinbo Song ◽  
Wenjian Zhu ◽  
Hu Zhou ◽  
Junhao Zhang ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Graphene Foam ◽  
3D Graphene ◽  
Nitrogen Doped ◽  
Solvothermal Route ◽  
Nanostructured Ceramic

Hydroxyapatite anchored nitrogen-doped three-dimensional graphene (HAp-N3DG) skeletal network (foam) based nanostructured ceramic framework (CF) was developed through a polymer-assisted solvothermal route.

scholarly journals Aqueous Preparation of Platinum Nanoflowers on Three-Dimensional Graphene for Efficient Methanol Oxidation

Catalysts ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 519 ◽  
Author(s):  
Ying Zhang ◽  
Zhouwei Shao ◽  
Qi Shen ◽  
Mengyang Li ◽  
Lin Xu ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Three Dimensional ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Graphene Foam ◽  
Electrochemical Catalysis ◽  
3D Graphene ◽  
Graphene Electrode ◽  
Aqueous Method ◽  
Pt Nanowires

A facile aqueous method to construct a platinum nanoflowers (PtNFs)/three-dimensional (3D) graphene electrode for electrochemical catalysis was demonstrated. PtNFs composed of thin Pt nanowires with the length of 6–16 nm and the diameter of 2–3 nm were prepared on 3D graphene foam as a growth template in the aqueous solution without any surfactant. The 3D graphene foam was used for patterning PtNFs and controlling their morphology. The fabricated PtNF/3D graphene electrode was applied for electrocatalytic methanol oxidation. Electrochemical measurements show that the PtNF/3D graphene electrode has higher electrocatalytic activity and better stability than commercial Pt-C modified glassy carbon electrode. It displays promising potential for applications in fuel cells.

scholarly journals Iron nanoparticle templates for constructing 3D graphene framework with enhanced performance in sodium-ion batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (42) ◽  
pp. 21780-21787
Author(s):  
Benoît D. L. Campéon ◽  
Chen Wang ◽  
Yuta Nishina
Keyword(s):  
Electrochemical Performance ◽  
Three Dimensional ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Li Ion Batteries ◽  
3D Graphene ◽  
Iron Nanoparticle ◽  
Li Ion

This study examines the synthesis and electrochemical performance of three-dimensional graphene for Li-ion batteries and Na-ion batteries.

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