Facile Synthesis of 3D Graphene Flowers for Ultrasensitive and Highly Reversible Gas Sensing

Wu, Jin; Feng, Shuanglong; Wei, Xingzhan; Shen, Jun; Lu, Wenqiang; Shi, Haofei; Tao, Kai; Lu, Shirong; Sun, Tai; Yu, Linfeng; Du, Chunlei; Miao, Jianmin; Norford, Leslie K.

doi:10.1002/adfm.201603598

Cited by 153 publications

(127 citation statements)

References 64 publications

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“…In 2016, 3D graphene flowers (GF) cluster patterns were successfully prepared by Shuanglong Feng et al from Nanyang Technological University by inexpensive homebuilt microwave plasma-enhanced chemical vapor deposition (MPCVD) [61]. The GF sensor achieved a high response of 1411% to 10 ppm NO 2 and a response of 101% to 200 ppb NO 2 .…”

Section: Gas Sensors Based On Pristine Graphenementioning

confidence: 99%

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Research Progress of Gas Sensor Based on Graphene and Its Derivatives: A Review

2018

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Featured Application: gas sensors based on graphene and its derivatives have brilliant development prospects on innovating composite material and designing appropriate structure.Abstract: Gas sensors are devices that convert a gas volume fraction into electrical signals, and they are widely used in many fields such as environmental monitoring. Graphene is a new type of two-dimensional crystal material that has many excellent properties including large specific surface area, high conductivity, and high Young's modulus. These features make it ideally suitable for application for gas sensors. In this paper, the main characteristics of gas sensor are firstly introduced, followed by the preparation methods and properties of graphene. In addition, the development process and the state of graphene gas sensors are introduced emphatically in terms of structure and performance of the sensor. The emergence of new candidates including graphene, polymer and metal/metal oxide composite enhances the performance of gas detection significantly. Finally, the clear direction of graphene gas sensors for the future is provided according to the latest research results and trends. It provides direction and ideas for future research.2 of 21 excellent conductivity, and easy adsorption of gas molecules, and the surface can easily be modified by functional groups, so it has good gas sensing properties.Graphene, a monolayer of graphite sheet consisting of sp 2 hybridized carbon atoms covalently bonded to three other atoms which was first isolated by Geim and Novoselov using micro-mechanical peeling of graphite in 2004, so they won the 2010 Nobel Prize in Physics [8]. Graphene is the thinnest and highest strength material in nature at present and has the advantages of strong electric conductivity and heat conductivity, and is almost transparent and dense, thus attracts people's attention [9].Nowadays, there are many studies about graphene gas sensors focused on the performance improvement in the field of composite materials, computational chemistry and Micro-Electro-Mechanical System (MEMS). Considering the practical application of graphene gas sensor, we need to find the most potential direction. In this article, the development process and the state of art of graphene gas sensors are introduced. The direction of graphene gas sensors for the future is also provided. The review provides important reference for follow-up research work. Gas Sensor Key Parameters of Gas SensorGas sensors are the crucial components to detect the type and concentration of gas. The components can transform gas composition, gas concentration and other information from non-electricity to electricity to achieve the measurement of gas [10].The key parameters of gas sensor measuring performance include the following aspects [11]:

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Section: Gas Sensors Based On Pristine Graphenementioning

confidence: 99%

“…enhanced chemical vapor deposition (MPCVD) [61]. The GF sensor achieved a high response of 1411% to 10 ppm NO2 and a response of 101% to 200 ppb NO2.…”

Section: Gas Sensors Based On Pristine Graphenementioning

confidence: 99%

Research Progress of Gas Sensor Based on Graphene and Its Derivatives: A Review

2018

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Section: Graphene Assemblies For Gas and Vapor Sensorsmentioning

confidence: 99%

Recent Advances in Sensing Applications of Graphene Assemblies and Their Composites

Tùng

Nine

Krebsz

et al. 2017

Adv Funct Materials

242

139

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Development of next-generation sensor devices is gaining tremendous attention in both academia and industry because of their broad applications in manufacturing processes, food and environment control, medicine, disease diagnostics, security and defense, aerospace, and so forth. Current challenges include the development of low-cost, ultrahigh, and user-friendly sensors, which have high selectivity, fast response and recovery times, and small dimensions. The critical demands of these new sensors are typically associated with advanced nanoscale sensing materials. Among them, graphene and its derivatives have demonstrated the ideal properties to overcome these challenges and have merged as one of the most popular sensing platforms for diverse applications. A broad range of graphene assemblies with different architectures, morphologies, and scales (from nano-, micro-, to macrosize) have been explored in recent years for designing new high-performing sensing devices. Herein, this study presents and discusses recent advances in synthesis strategies of assembled graphene-based superstructures of 1D, 2D, and 3D macroscopic shapes in the forms of fibers, thin films, and foams/aerogels. The fabricated state-of-the-art applications of these materials in gas and vapor, biomedical, piezoresistive strain and pressure, heavy metal ion, and temperature sensors are also systematically reviewed and discussed, and their sensing performance is compared.

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“…The corresponding sensitivity is 1.3 ppm −1 and 78.5 ppm −1 , respectively. The excellent sensitivity of the sensor is due to the enhanced adsorption of a NH 3 and NO 2 molecules by functional groups (e.g., ─OH, ─NH 2 , and SO 3 − ) on the hydrogel . Conductive polymer cryogel composites with super and interconnected porosity and fast response to stimuli are often preferred as smart responsive materials .…”

Section: Applications In Sensorsmentioning

confidence: 99%

Properties of conductive polymer hydrogels and their application in sensors

Guo

Pan

et al. 2019

J Polym Sci B Polym Phys

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Conductive polymer hydrogels (CPHs), which combine the unique advantages of hydrogels and organic conductors, have received wide attention due to their adjustable mechanical properties, biocompatibility, self‐healing, hydrophilicity, and ease of preparation. With doping engineering and incorporation with other functional nanomaterials, CPHs have exhibited excellent physical/chemical properties. CPHs have been widely used in various electronic devices, especially in the field of sensors due to its sensitivity to external stimuli. This review summarizes recent progress in CPHs from the aspect of the CPHs' properties and their application in advanced sensor technology. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2019, 57, 1606–1621

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Facile Synthesis of 3D Graphene Flowers for Ultrasensitive and Highly Reversible Gas Sensing

Cited by 153 publications

References 64 publications

Research Progress of Gas Sensor Based on Graphene and Its Derivatives: A Review

Research Progress of Gas Sensor Based on Graphene and Its Derivatives: A Review

Recent Advances in Sensing Applications of Graphene Assemblies and Their Composites

Properties of conductive polymer hydrogels and their application in sensors

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