scholarly journals Fabrication, Structure, Performance, and Application of Graphene-Based Composite Aerogel

Materials ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 299
Author(s):  
Dequan Wei ◽  
Xiang Liu ◽  
Shenghua Lv ◽  
Leipeng Liu ◽  
Lei Wu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Inorganic Materials ◽  
High Adsorption ◽  
Research Papers ◽  
Porous Substance ◽  
Composite Aerogel ◽  
Existing Problems ◽  
Reduced Graphene ◽  
Strong Adsorption ◽  
Fast Charging

Graphene-based composite aerogel (GCA) refers to a solid porous substance formed by graphene or its derivatives, graphene oxide (GO) and reduced graphene oxide (rGO), with inorganic materials and polymers. Because GCA has super-high adsorption, separation, electrical properties, and sensitivity, it has great potential for application in super-strong adsorption and separation materials, long-life fast-charging batteries, and flexible sensing materials. GCA has become a research hotspot, and many research papers and achievements have emerged in recent years. Therefore, the fabrication, structure, performance, and application prospects of GCA are summarized and discussed in this review. Meanwhile, the existing problems and development trends of GCA are also introduced so that more will know about it and be interested in researching it.

scholarly journals The utilization of a three-dimensional reduced graphene oxide and montmorillonite composite aerogel as a multifunctional agent for wastewater treatment

RSC Advances ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 4239-4248 ◽  
Author(s):  
Yunyun Zhang ◽  
Xueru Yan ◽  
Yayuan Yan ◽  
Dengjie Chen ◽  
Langhuan Huang ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Wastewater Treatment ◽  
Graphene Oxide ◽  
Mechanical Strength ◽  
Reduced Graphene Oxide ◽  
Three Dimensional ◽  
High Adsorption ◽  
Composite Aerogel ◽  
Reduced Graphene

A reduced graphene oxide/montmorillonite aerogel has high adsorption and antibacterial activity, and excellent recyclable properties thanks to its outstanding mechanical strength.

scholarly journals Preparation of Polyaniline-coated Composite Aerogel of MnO2 and Reduced Graphene Oxide for High-performance Zinc-ion Battery

2019 ◽  
Vol 38 (5) ◽  
pp. 514-521 ◽  
Author(s):  
Jing Mao ◽  
Fang-Fang Wu ◽  
Wen-Hui Shi ◽  
Wen-Xian Liu ◽  
Xi-Lian Xu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Zinc Ion ◽  
Composite Aerogel ◽  
Reduced Graphene

One-step synthesis of SnO2-reduced graphene oxide (SOG) composites for efficient removal of organic dyes from wastewater

RSC Advances ◽  
2016 ◽  
Vol 6 (102) ◽  
pp. 100636-100642 ◽  
Author(s):  
Wenzhu Yin ◽  
Huaqiang Cao
Keyword(s):  
Graphene Oxide ◽  
Organic Dyes ◽  
Functionalized Graphene ◽  
High Adsorption ◽  
Efficient Removal ◽  
Functionalized Graphene Oxide ◽  
Adsorption Capacities ◽  
Reduced Graphene ◽  
One Step ◽  
Adsorption Rates

In this work, SnO2 functionalized graphene oxide was shown to possess high adsorption capacities and fast adsorption rates for organic dyes over wide pH ranges. Additionally, the adsorbent could be easily regenerated by washing with ethanol.

A three-dimensional nickel-doped reduced graphene oxide composite for selective separation of hemoglobin with a high adsorption capacity

RSC Advances ◽  
2016 ◽  
Vol 6 (61) ◽  
pp. 56278-56286 ◽  
Author(s):  
Lei Chen ◽  
Zhang-Run Xu
Keyword(s):  
Graphene Oxide ◽  
Adsorption Capacity ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
Three Dimensional ◽  
High Adsorption ◽  
Reduced Graphene ◽  
One Step ◽  
Reduced Graphene Oxide Aerogel ◽  
High Adsorption Capacity

A 3D nickel-doped reduced graphene oxide aerogel was prepared by one-step reduction and self-assembly, which exhibited favorable selectivity and high adsorption capacity for isolating hemoglobin.

scholarly journals Ultra-Sensitive Piezo-Resistive Sensors Constructed with Reduced Graphene Oxide/Polyolefin Elastomer (RGO/POE) Nanofiber Aerogels

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1883 ◽  
Author(s):  
Weibing Zhong ◽  
Haiqing Jiang ◽  
Liyan Yang ◽  
Ashish Yadav ◽  
Xincheng Ding ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Three Dimensional ◽  
Pressure Sensors ◽  
High Sensitivity ◽  
Working Pressure ◽  
Nanofiber Composite ◽  
Composite Aerogel ◽  
Polyolefin Elastomer ◽  
Reduced Graphene ◽  
Composite Aerogels

Flexible wearable pressure sensors have received extensive attention in recent years because of the promising application potentials in health management, humanoid robots, and human machine interfaces. Among the many sensory performances, the high sensitivity is an essential requirement for the practical use of flexible sensors. Therefore, numerous research studies are devoted to improving the sensitivity of the flexible pressure sensors. The fiber assemblies are recognized as an ideal substrate for a highly sensitive piezoresistive sensor because its three-dimensional porous structure can be easily compressed and can provide high interconnection possibilities of the conductive component. Moreover, it is expected to achieve high sensitivity by raising the porosity of the fiber assemblies. In this paper, the three-dimensional reduced graphene oxide/polyolefin elastomer (RGO/POE) nanofiber composite aerogels were prepared by chemical reducing the graphene oxide (GO)/POE nanofiber composite aerogels, which were obtained by freeze drying the mixture of the GO aqueous solution and the POE nanofiber suspension. It was found that the volumetric shrinkage of thermoplastic POE nanofibers during the reduction process enhanced the compression mechanical strength of the composite aerogel, while decreasing its sensitivity. Therefore, the composite aerogels with varying POE nanofiber usage were prepared to balance the sensitivity and working pressure range. The results indicated that the composite aerogel with POE nanofiber/RGO proportion of 3:3 was the optimal sample, which exhibits high sensitivity (ca. 223 kPa−1) and working pressure ranging from 0 to 17.7 kPa. In addition, the composite aerogel showed strong stability when it is either compressed with different frequencies or reversibly compressed and released 5000 times.

scholarly journals Flexible pressure sensors with high pressure sensitivity and low detection limit using a unique honeycomb-designed polyimide/reduced graphene oxide composite aerogel

RSC Advances ◽  
2021 ◽  
Vol 11 (19) ◽  
pp. 11760-11770
Author(s):  
Qiang Xu ◽  
Xinhao Chang ◽  
Zhendong Zhu ◽  
Lin Xu ◽  
Xianchun Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Pressure Sensors ◽  
Honeycomb Structure ◽  
Pressure Sensitivity ◽  
Large Aspect Ratio ◽  
Composite Aerogel ◽  
Reduced Graphene ◽  
Flexible Pressure Sensors ◽  
Sensing Performance

The polyimide (PI)/reduced graphene oxide (rGO) aerogel sensors possess unique large aspect ratio honeycomb structure, which exhibits superelastic and excellent sensing performance.

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