scholarly journals Capacitance Enhancement by Incorporation of Functionalised Carbon Nanotubes into Poly(3,4-Ethylenedioxythiophene)/Graphene Oxide Composites

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2419
Author(s):  
Anita Cymann ◽  
Mirosław Sawczak ◽  
Jacek Ryl ◽  
Ewa Klugmann-Radziemska ◽  
Monika Wilamowska-Zawłocka
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Polymer Chains ◽  
Electrodeposition Process ◽  
Counter Ions ◽  
Oxide Composites ◽  
Electrochemical Characterisation ◽  
Synthesis Solution

This paper reports on the role of oxidised carbon nanotubes (oxMWCNTs) present in poly-3,4-ethylenedioxytiophene (PEDOT)/graphene oxide (GOx) composite. The final ternary composites (pEDOT/GOx/oxMWCNTs) are synthesised by an electrodeposition process from the suspension-containing monomer, oxidised carbon nanotubes and graphene oxide. Dissociated functional groups on the surface of graphene oxide play a role of counter-ions for the polymer chains. Detailed physicochemical and electrochemical characterisation of the ternary composites is presented in the paper. The results prove that the presence of oxMWCNTs in the ternary composites doubles the capacitance values compared to the binary ones (450 vs. 270 F cm−3 for PEDOT/GOx/oxMWCNTs and PEDOT/GOx, respectively). The amount of carbon nanotubes in the synthesis solution is crucial for physicochemical properties of the composites, their adhesion to the electrode substrate and the electrochemical performance.

Multi-Walled Carbon Nanotubes/Graphene Oxide Composites for Humidity Sensing

2013 ◽  
Vol 13 (12) ◽  
pp. 4749-4756 ◽  
Author(s):  
Xiaoyu Li ◽  
Xiangdong Chen ◽  
Yao Yao ◽  
Ning Li ◽  
Xinpeng Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Humidity Sensing ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Oxide Composites

Unusual morphologies of reduced graphene oxide and polyaniline nanofibers-reduced graphene oxide composites for high performance supercapacitor applications

RSC Advances ◽  
2014 ◽  
Vol 4 (43) ◽  
pp. 22551-22560 ◽  
Author(s):  
Rahul S. Diggikar ◽  
Dattatray J. Late ◽  
Bharat B. Kale
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Polyaniline Nanofibers ◽  
Pani Nanofibers ◽  
Reduced Graphene ◽  
Oxide Composites ◽  
Enhanced Electrochemical Performance ◽  
Supercapacitor Applications

The unique morphologies of reduced graphene oxide (RGO) and RGO–PANI nanofibers (NF) composites have been demonstrated. The enhanced electrochemical performance was observed for honeycomb like RGO–PANI NFs composites.

Improved photodegradation performance of zinc oxide/carbon nanotubes/reduced graphene oxide composites

2019 ◽  
Vol 27 (8) ◽  
pp. 619-625 ◽  
Author(s):  
Yanzhen Huang ◽  
Xinling Hu ◽  
Yingjiang Qian ◽  
Shaofeng Huang ◽  
Dongxu Li
Keyword(s):  
Carbon Nanotubes ◽  
Zinc Oxide ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Oxide Composites

The role of graphene oxide content on the adsorption-enhanced photocatalysis of titanium dioxide/graphene oxide composites

2011 ◽  
Vol 170 (1) ◽  
pp. 226-232 ◽  
Author(s):  
Thuy-Duong Nguyen-Phan ◽  
Viet Hung Pham ◽  
Eun Woo Shin ◽  
Hai-Dinh Pham ◽  
Sunwook Kim ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Graphene Oxide ◽  
Oxide Content ◽  
Oxide Composites

Reduction of graphene oxide gel with carbon nanotubes, sulfur cathode material preparation and electrochemical performance

RSC Advances ◽  
2016 ◽  
Vol 6 (45) ◽  
pp. 38943-38949 ◽  
Author(s):  
Jianrong Xiao ◽  
Hongzhe Wang ◽  
Yongxuan Hou ◽  
Yafang Guo
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Reduction Method ◽  
Sulfur Cathode ◽  
Material Preparation ◽  
Hydrothermal Reduction

Reduction of graphene oxide with different reduction degrees was carried out using a hydrothermal reduction method at 130–190 °C.

Effects of Polypyrrole/Graphene Oxide Composites with Different Reaction Times on Electrochemical Performance

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Minzhen Feng
Keyword(s):  
Composite Material ◽  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reaction Times ◽  
Second Step ◽  
Hummers Method ◽  
Oxide Composites ◽  
Oxide Composite Material ◽  
Modified Hummers Method

Abstract: Graphene oxide (GO) was prepared using the modified Hummers method and used as a template for polypyrrole. Polypyrrole was polymerized in situ on the surface of GO to finally obtain the polypyrrole/graphene oxide composite material. The effects of different reaction times on the electrochemical performance of polypyrrole/graphene oxide in the second step were studied. It was obtained that the composite material had optimal properties when the reaction time was 24 h.

A simple, one-pot synthesis of molybdenum oxide-reduced graphene oxide composites in supercritical methanol and their electrochemical performance

RSC Advances ◽  
2016 ◽  
Vol 6 (110) ◽  
pp. 108298-108309 ◽  
Author(s):  
Jieun Hwang ◽  
Dohyeon Yoon ◽  
Boyoung Kweon ◽  
Wonyoung Chang ◽  
Jaehoon Kim
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reduced Graphene Oxide ◽  
Molybdenum Oxide ◽  
Supercritical Methanol ◽  
One Pot ◽  
One Pot Synthesis ◽  
Reduced Graphene ◽  
Oxide Composites

A simple and green supercritical methanol (scMeOH) route is developed to tightly anchor molybdenum oxide (MoO2) nanoparticles on reduced graphene oxide (RGO).

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