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Journal of Materials Science
Erschienen in: Journal of Materials Science 14/2017

24.04.2017 | Energy materials

Fabrication of a composite of platinum, N-g-C3N4 and Ketjen Black for photo-electrochemical methanol oxidation

verfasst von: Jiexu Cheng, Xiulan Hu, Jianbo Zhang, Huihong Huang, Nan Su, Haikui Zhu

Erschienen in: Journal of Materials Science | Ausgabe 14/2017

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Abstract

Recently N-doped graphitic carbon-incorporated g-C3N4 (denoted as N-g-C3N4) exhibits better electroconductivity and photo-catalytic property compared with pure g-C3N4 as a support material for Pt nanoparticles (NPs). A composite catalyst consisting of Pt nanoparticles and N-g-C3N4-modified KB was designed and fabricated. Pt nanoparticles were prepared through a solution plasma process; N-g-C3N4 was prepared by direct heating the mixture of urea and citric acid monohydrate and subsequently treated by hydrothermal method. Their chemical composition, particle size and microstructure were investigated by X-ray diffraction, X-ray photoelectron spectroscopy and transmission electron microscopy. Compared with the Pt/KB catalyst, ternary Pt/N-g-C3N4/KB nanocomposites exhibit excellent electrocatalytic properties for methanol oxidation owning to the significant synergistic effects of individual components. Once light irradiation was supplied, Pt/N-g-C3N4/KB catalyst exhibits exceptional forward peak current densities as high as 2800 mA mg Pt −1 . And Pt/N-g-C3N4/KB catalyst also shows better CO tolerance than Pt/KB. Such a Pt/N-g-C3N4/KB composite catalyst may bring new design ideas for photo-assisted direct methanol fuel cell in the future.
Vorheriger Artikel Randomly oriented Ni–P/nanofiber/nanotube composite prepared by electrolessly plated nickel–phosphorus alloys for fuel cell applications
Nächster Artikel Cellulose nanofiber/cationic conjugated polymer hybrid aerogel sensor for nitroaromatic vapors detection

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Metadaten
Titel
Fabrication of a composite of platinum, N-g-C3N4 and Ketjen Black for photo-electrochemical methanol oxidation
verfasst von
Jiexu Cheng
Xiulan Hu
Jianbo Zhang
Huihong Huang
Nan Su
Haikui Zhu
Publikationsdatum
24.04.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 14/2017
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-017-1110-x

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