AgNi@ZnO nanorods grown on graphene as an anodic catalyst for direct glucose fuel cells

Nano carbon-semiconductor hybrid materials such as graphene and zinc oxide (ZnO) have been vigorously explored for their direct electron transfer properties and high specific surface areas. We fabricated a three-dimensional anodic electrode catalyst nanostructure for a direct glucose fuel cell (DGFC...

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Bibliographic Details
Published in:The Korean journal of chemical engineering 2019, 36(7), 232, pp.1193-1200
Main Authors: Huynh, Thoa Thi Kim, Tran, Thao Quynh Ngan, Yoon, Hyon Hee, Kim, Woo-Jae, Kim, Il Tae
Format: Article
Language:English
Subjects:
Biotechnology
Catalysis
Catalysts
Chemistry
Chemistry and Materials Science
Electrodes
Electron transfer
Electronic
Energy sources
Energy storage
Fuel cells
Glucose
Graphene
Industrial Chemistry/Chemical Engineering
Inorganic
Materials (Organic
Materials Science
Nanoparticles
Nanorods
Nanostructure
Nickel
Silver
Thin Films
Zinc oxide
Zinc oxides
화학공학
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Summary:Nano carbon-semiconductor hybrid materials such as graphene and zinc oxide (ZnO) have been vigorously explored for their direct electron transfer properties and high specific surface areas. We fabricated a three-dimensional anodic electrode catalyst nanostructure for a direct glucose fuel cell (DGFC) utilizing two-dimensional monolayer graphene and one-dimensional ZnO nanorods, which accommodate silver/nickel (Ag/Ni) nanoparticle catalyst. Glucose, as an unlimited and safe natural energy resource, has become the most popular fuel for energy storage. Ag and Ni nanoparticles, having superior catalytic activities and anti-poisoning effect, respectively, demonstrate a 73-times enhanced cell performance (550 µW cm −2 or 8 mW mg −1 ) when deposited on zinc oxide nanorods with a small amount of ∼0.069 mg in 0.5 M of glucose and 1 M of KOH solution at 60 o C. This three-dimensional anodic electrode catalyst nanostructure presents promise to open up a new generation of fuel cells with non-Pt, low mass loading of catalyst, and 3D nanostructure electrodes for high electrochemical performances.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-019-0293-z