Achieving ultrahigh volumetric performance of graphene composite films by an outer–inner dual space utilizing strategy

2020 ◽  
Vol 8 (19) ◽  
pp. 9661-9669 ◽  
Author(s):  
Cong Huang ◽  
Qunli Tang ◽  
Qiushui Feng ◽  
Yanhua Li ◽  
Yali Xu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Composite Film ◽  
Reduced Graphene Oxide ◽  
Dual Space ◽  
Composite Films ◽  
Oxide Composite ◽  
Graphene Composite ◽  
Reduced Graphene

An outer–inner dual space utilizing strategy is reported for the fabrication of an ultrahigh volumetric performance polydopamine-coated dopamine/reduced graphene oxide composite film.

Large-Area Reduced Graphene Oxide Composite Films for Flexible Asymmetric Sandwich and Microsized Supercapacitors

2018 ◽  
Vol 28 (18) ◽  
pp. 1707247 ◽  
Author(s):  
Xinyu Wang ◽  
Fang Wan ◽  
Linlin Zhang ◽  
Zifang Zhao ◽  
Zhiqiang Niu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Composite Films ◽  
Large Area ◽  
Oxide Composite ◽  
Reduced Graphene

Synthesis of hydrophobic carbon nanotubes/reduced graphene oxide composite films by flash light irradiation

2018 ◽  
Vol 12 (3) ◽  
pp. 376-382 ◽  
Author(s):  
Kai Wang ◽  
Jinbo Pang ◽  
Liwei Li ◽  
Shengzhe Zhou ◽  
Yuhao Li ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Composite Films ◽  
Light Irradiation ◽  
Oxide Composite ◽  
Reduced Graphene

Enhanced capacitive behavior of carbon aerogels/reduced graphene oxide composite film for supercapacitors

2013 ◽  
Vol 247-248 ◽  
pp. 66-70 ◽  
Author(s):  
Chunyang Nie ◽  
Dong Liu ◽  
Likun Pan ◽  
Yong Liu ◽  
Zhuo Sun ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Composite Film ◽  
Reduced Graphene Oxide ◽  
Carbon Aerogels ◽  
Oxide Composite ◽  
Capacitive Behavior ◽  
Reduced Graphene

Green synthesis of high conductivity silver nanoparticle-reduced graphene oxide composite films

2014 ◽  
Vol 298 ◽  
pp. 62-67 ◽  
Author(s):  
D.A. Dinh ◽  
K.S. Hui ◽  
K.N. Hui ◽  
Y.R. Cho ◽  
Wei Zhou ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Green Synthesis ◽  
Reduced Graphene Oxide ◽  
Silver Nanoparticle ◽  
Composite Films ◽  
High Conductivity ◽  
Oxide Composite ◽  
Reduced Graphene

Flexible electrothermal polymer film based on reduced graphene oxide–water polyurethane

2020 ◽  
Vol 34 (25) ◽  
pp. 2050265 ◽  
Author(s):  
Ke Wang ◽  
Zhimin Zhou ◽  
Yuehui Wang
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Graphene Oxide ◽  
Composite Film ◽  
Reduced Graphene Oxide ◽  
Rapid Heating ◽  
Tape Casting ◽  
Composite Films ◽  
Low Input ◽  
Reduced Graphene

In this paper, waterborne polyurethane (WPU) conductive films incorporated with reduced graphene oxide (RGO) as conductive fillers were prepared by solution blending and tape casting method. The electrical conductivity, thermal conductivity and microstructures of the composite films were systematically investigated. The experimental results demonstrate that the electrical conductivity and thermal conductivity of the RGO–WPU composite films first increased then decreased with the increase of the RGO content. The resistivity of composite film with 7% RGO reaches to the smallest that is about [Formula: see text], and the thermal conductivity of the composite film with 7% graphene was about 0.29 W.m.K[Formula: see text], which an increase of 70% compared with pure WPU. The electrical conductivity of the composite film decreased with the increase of the original concentration of WPU solution and thickness of the composite film. As film heater, the composite film displayed effective and rapid heating at low input voltages owing to the good conductivity. With an input voltage was in the range of 10–24 V, the film took less than 30s to reach a steady-state temperature, demonstrating the fast response of the composite film heater and suitable for applications in the field of the fast temperature switching with low input voltages as flexible electrothermal heater.

scholarly journals Free-Standing PVDF/Reduced Graphene Oxide Film for All-Solid-State Flexible Supercapacitors towards Self-Powered Systems

Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 198 ◽  
Author(s):  
Parthiban Pazhamalai ◽  
Vimal Kumar Mariappan ◽  
Surjit Sahoo ◽  
Woo Young Kim ◽  
Young Sun Mok ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Composite Film ◽  
Reduced Graphene Oxide ◽  
Energy Harvester ◽  
The Self ◽  
Sodium Niobate ◽  
Oxide Composite ◽  
Charging System ◽  
Reduced Graphene

The development of polymer-based devices has attracted much attention due to their miniaturization, flexibility, lightweight and sustainable power sources with high efficiency in the field of wearable/portable electronics, and energy system. In this work, we proposed a polyvinylidene fluoride (PVDF)-based composite matrix for both energy harvesting and energy storage applications. The physicochemical characterizations, such as X-ray diffraction, laser Raman, and field-emission scanning electron microscopy (FE-SEM) analyses, were performed for the electrospun PVDF/sodium niobate and PVDF/reduced graphene oxide composite film. The electrospun PVDF/sodium niobate nanofibrous mat has been utilized for the energy harvester which shows an open circuit voltage of 40 V (peak to peak) at an applied compressive force of 40 N. The PVDF/reduced graphene oxide composite film acts as the electrode for the symmetric supercapacitor (SSC) device fabrication and investigated for their supercapacitive properties. Finally, the self-charging system has been assembled using PVDF/sodium niobate (energy harvester), and PVDF/reduced graphene oxide SSC (energy storage) and the self-charging capability is investigated. The proposed self-charging system can create a pathway for the all-polymer based composite high-performance self-charging system.

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