An overview of the electrochemical performance of modified graphene used as an electrocatalyst and as a catalyst support in fuel cells

Soo, Li Ting; Loh, Kee Shyuan; Mohamad, Abu Bakar; Daud, Wan Ramli Wan; Wong, Wai Yin

doi:10.1016/j.apcata.2015.03.008

Cited by 100 publications

(38 citation statements)

References 106 publications

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“…Graphene has unique advantages and great potential and can be an alternative to CB mainly as support material in catalysts. The advantages of graphene include a high active surface area (25.70‐92.86 m 2 g −1 ), which expending the reaction site and good resistance to corrosion during the operating condition of fuel cell system …”

Section: Carbon Allotropes In Fuel Cell Applicationmentioning

confidence: 99%

Allotrope carbon materials in thermal interface materials and fuel cell applications: A review

2019

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Summary The performance of allotrope carbon materials has been explored because of their superior properties in energy system applications. This review provides an understanding of the current work focusing on the applications of selected carbon materials in important energy systems, focus on thermal interface materials (TIMs), and fuel cell applications. This article begins with the introduction of TIMs and fuel cell in general working principle and presents details on carbon materials. The discussion focuses on updates from the latest research work and addresses current challenges and opportunities for research toward TIMs and fuel cell applications. The optimum performance of TIMs was seen when thermal conductivity achieved at a maximum of 3000 W (m K)−1 by using vertically aligned carbon nanotubes (CNTs) and a minimum internal thermal resistance of 0.3 mm2 K W−1. Meanwhile for fuel cell, the platinum/CNTs catalyst applied proton exchange membrane fuel cell achieved high power density of 661 mW cm−2 in the presence of Nafion electrolyte membrane. This review provides insights for scientists about the use of carbon materials, especially in energy system applications.

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Section: Carbon Allotropes In Fuel Cell Applicationmentioning

confidence: 99%

Allotrope carbon materials in thermal interface materials and fuel cell applications: A review

2019

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“…The examples of alternative types of carbon materials utilized in dmfc anodes are carbon nanofiber (CNF) and carbon nanotubes (CNT); however, the high costs of these materials make them efficiently challenging for use in the large‐scale production of DMFCs for commercial applications . Moreover, graphene has been used extensively in fuel cells such as a support layer, electrocatalyst, and membrane . According to Seger and Kamat, graphene could perform as an effective anode support material for PEMFCs.…”

Section: Hydrogen Fuel/fuel Cellmentioning

confidence: 99%

“…104 Moreover, graphene has been used extensively in fuel cells such as a support layer, electrocatalyst, and membrane. 105 According to Seger and Kamat, 106 graphene could perform as an effective anode support material for PEMFCs. As Du et al 107 indicated, a graphene-carbon nanotube (CNT) composite is applied to an electrode for PEMFCs and conclusively found that cell performances improved with a maximum power density of 1072 mW/cm 2 .…”

Section: Hydrogen Fuel/fuel Cellmentioning

confidence: 99%

Renewable energy harvesting with the application of nanotechnology: A review

et al. 2018

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Summary It is believed that fossil fuel sources are exhaustible and also the major cause of greenhouse gas emission. Therefore, it is required to increase the portion of renewable energy sources in supplying the primary energy of the world. In this study, it is focused on application of nanotechnology in exploitation of renewable energy sources and the related technologies such as hydrogen production, solar cell, geothermal, and biofuel. Here, nanotechnologies influence on providing an alternative energy sources, which are environmentally benign, are comprehensively discussed and reviewed. Based on the literature, employing nanotechnology enhances the heat transfer rate in photovoltaic/thermal (PV/T) systems and modifies PV structures, which can improve its performance, making fuel cells much cost‐effective and improving the performance of biofuel industry through utilization of nanocatalysts, manufacturing materials with high durability and lower weight for wind energy industry.

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“…The most widely use of Gi sb yf ar the development of electrodes with catalytic activity. [26,53,163,[222][223][224] The electrical conductivity of Gs combined with the possibility of having active sites has been widely exploited in the preparationo fe lectrocatalysts. [53,164,222] Al arge parto ft he interesto ft his type of electrocatalysts based on Gi sf or the replacement of Pt and noble metals as electrodes, particularly for fuel cells.…”

Section: E Lectrochemical Applicationsmentioning

confidence: 99%

Covalently Modified Graphenes in Catalysis, Electrocatalysis and Photoresponsive Materials

Navalón

Herance

Álvaro

et al. 2017

Chemistry A European J

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The ideal graphene is a one-atom thick single layer of carbon atoms having sp hybridation in hexagonal arrangement. Due to their large surface area and good dispersability in common solvents, graphenes are suitable platforms to anchor covalently units. The appended unit can introduce additional functionality to graphene. Although the field of covalently modified graphene is still starting compared to the development of other carbon nanoforms, there is already many examples describing the use of modified graphenes as recoverable photo-, electrocatalysts as well as in non-linear optics and to improve mechanical resistance and solubility of graphenes. In this Review, the state of the art of covalently modified graphenes for these applications is reviewed. After some general sections describing properties and characterization techniques of graphenes relevant to their use as supports and those general reactions and starting substrates to obtain the modified graphene conjugates, the main body of the review describes the preparation and properties of covalently modified graphene depending on their use as catalyst, photocatalyst, photoresponsive material, non-linear optics, electrocatalyst and other uses. The last section of the review summarizes the main achievements of the field and what should be according to our view the future developments.

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An overview of the electrochemical performance of modified graphene used as an electrocatalyst and as a catalyst support in fuel cells

Cited by 100 publications

References 106 publications

Allotrope carbon materials in thermal interface materials and fuel cell applications: A review

Allotrope carbon materials in thermal interface materials and fuel cell applications: A review

Renewable energy harvesting with the application of nanotechnology: A review

Covalently Modified Graphenes in Catalysis, Electrocatalysis and Photoresponsive Materials

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