Concisely modularized assembling of graphene-based thin films with promising electrode performance

2019 ◽  
Vol 3 (7) ◽  
pp. 1462-1470 ◽  
Author(s):  
Weiwei Wei ◽  
Rohit L. Vekariy ◽  
Chuanting You ◽  
Yafei He ◽  
Ping Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Double Layer ◽  
Van Der Waals ◽  
Cellulose Nanofibers ◽  
Van Der Waals Interactions ◽  
Electrode Performance ◽  
Reduced Graphene

Highly dense thin films assembled from cellulose nanofibers and reduced graphene oxide via van der Waals interactions to realize ultrahigh volumetric double-layer capacitances.

Highly compact nanochannel thin films with exceptional thermal conductivity and water pumping for efficient solar steam generation

2020 ◽  
Vol 8 (28) ◽  
pp. 13927-13934 ◽  
Author(s):  
Weiwei Wei ◽  
Qingbao Guan ◽  
Chuanting You ◽  
Jianyong Yu ◽  
Zhanhui Yuan ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Conductivity ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Cellulose Nanofibers ◽  
Van Der Waals Interactions ◽  
Steam Generation ◽  
Water Pumping ◽  
Reduced Graphene ◽  
Solar Steam Generation

Highly compact nano-channelled thin films, assembled from cellulose nanofibers and reduced graphene oxide via van der Waals' interactions, exhibit exceptional thermal conductivity and water pumping, allowing for efficient solar-steam generation.

All-Solid-State Double-Layer Capacitors Using Binderless Reduced Graphene Oxide Thin Films Prepared by Bipolar Electrochemistry

2017 ◽  
Vol 4 (8) ◽  
pp. 2084-2090 ◽  
Author(s):  
Anis Allagui ◽  
Juveiriah Mohammed Ashraf ◽  
Malathe Khalil ◽  
Mohammad Ali Abdelkareem ◽  
Ahmed S. Elwakil ◽  
...  
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Solid State ◽  
Reduced Graphene Oxide ◽  
Double Layer ◽  
Oxide Thin Films ◽  
Reduced Graphene ◽  
Double Layer Capacitors ◽  
Bipolar Electrochemistry

scholarly journals Multiscale Charge Transport in van der Waals Thin Films: Reduced Graphene Oxide as a Case Study

ACS Nano ◽  
2021 ◽  
Vol 15 (2) ◽  
pp. 2654-2667
Author(s):  
Alessandro Kovtun ◽  
Andrea Candini ◽  
Anna Vianelli ◽  
Alex Boschi ◽  
Simone Dell’Elce ◽  
...  
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Charge Transport ◽  
Reduced Graphene Oxide ◽  
Van Der Waals ◽  
Reduced Graphene

scholarly journals Functionalized Reduced Graphene Oxide Thin Films for Ultrahigh CO2 Gas Sensing Performance at Room Temperature

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 623
Author(s):  
Monika Gupta ◽  
Huzein Fahmi Hawari ◽  
Pradeep Kumar ◽  
Zainal Arif Burhanudin ◽  
Nelson Tansu
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Gas Sensor ◽  
Functional Groups ◽  
Recovery Time ◽  
Room Temperature ◽  
Co2 Gas ◽  
Reduced Graphene ◽  
Response And Recovery

The demand for carbon dioxide (CO2) gas detection is increasing nowadays. However, its fast detection at room temperature (RT) is a major challenge. Graphene is found to be the most promising sensing material for RT detection, owing to its high surface area and electrical conductivity. In this work, we report a highly edge functionalized chemically synthesized reduced graphene oxide (rGO) thin films to achieve fast sensing response for CO2 gas at room temperature. The high amount of edge functional groups is prominent for the sorption of CO2 molecules. Initially, rGO is synthesized by reduction of GO using ascorbic acid (AA) as a reducing agent. Three different concentrations of rGO are prepared using three AA concentrations (25, 50, and 100 mg) to optimize the material properties such as functional groups and conductivity. Thin films of three different AA reduced rGO suspensions (AArGO25, AArGO50, AArGO100) are developed and later analyzed using standard FTIR, XRD, Raman, XPS, TEM, SEM, and four-point probe measurement techniques. We find that the highest edge functionality is achieved by the AArGO25 sample with a conductivity of ~1389 S/cm. The functionalized AArGO25 gas sensor shows recordable high sensing properties (response and recovery time) with good repeatability for CO2 at room temperature at 500 ppm and 50 ppm. Short response and recovery time of ~26 s and ~10 s, respectively, are achieved for 500 ppm CO2 gas with the sensitivity of ~50 Hz/µg. We believe that a highly functionalized AArGO CO2 gas sensor could be applicable for enhanced oil recovery, industrial and domestic safety applications.

Highly conductive free-standing reduced graphene oxide thin films for fast photoelectric devices

Carbon ◽  
2017 ◽  
Vol 115 ◽  
pp. 561-570 ◽  
Author(s):  
Hua Yang ◽  
Yang Cao ◽  
Junhui He ◽  
Yue Zhang ◽  
Binbin Jin ◽  
...  
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Oxide Thin Films ◽  
Free Standing ◽  
Reduced Graphene ◽  
Photoelectric Devices

Cellulose nanofibers/reduced graphene oxide flexible transparent conductive paper

2013 ◽  
Vol 97 (1) ◽  
pp. 243-251 ◽  
Author(s):  
Kezheng Gao ◽  
Ziqiang Shao ◽  
Xue Wu ◽  
Xi Wang ◽  
Jia Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Cellulose Nanofibers ◽  
Conductive Paper ◽  
Reduced Graphene
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