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AuthorBello, M.
AuthorZaidi, S. M.Javaid
AuthorAl-Ahmed, Amir
AuthorBasu, Suddhasatwa
AuthorPark, Dae Hwan
AuthorLakhi, Kripal Singh
AuthorVinu, Ajayan
Available date2023-07-16T11:35:27Z
Publication Date2017-01-01
Publication NameMicroporous and Mesoporous Materials
Identifierhttp://dx.doi.org/10.1016/j.micromeso.2017.06.021
CitationBello, M., Zaidi, S. J., Al-Ahmed, A., Basu, S., Park, D. H., Lakhi, K. S., & Vinu, A. (2017). Pt-Ru nanoparticles functionalized mesoporous carbon nitride with tunable pore diameters for DMFC applications. Microporous and Mesoporous Materials, 252, 50-58.‏
ISSN13871811
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85020807885&origin=inward
URIhttp://hdl.handle.net/10576/45660
AbstractMesoporous carbon nitrides (MCN) with different pore diameters are prepared by a nano-hard-templating strategy using SBA-15 with tunable pore diameters as templates through a simple polymerization of carbon tetrachloride (CTC) and ethylenediamine (EDA) as carbon and nitrogen precursors respectively. The prepared materials are functionalized with Pt and Ru nanoparticles in the highly ordered mesochannels which are separated by thick CN walls. The characterization results by XRD, HRSEM, FT-IR, and N2 adsorption reveal that the prepared MCN samples exhibit well-ordered porous structure and possess larger surface area and uniform pore diameter in comparison to other supports studied. MCN with different pore diameters are impregnated with Pt and Ru nanoparticles which are employed as electrodes for direct methanol fuel cells (DMFC). The performance of the Pt-Ru/MCN is compared with that of commercial MWCNT and Carbon Black-Vulcan-72 (CB-V-72). Among the materials studied, MCN-150(Pt-Ru) shows the highest catalytic activity of 65 mA/cm2, which outperforms Pt-Ru/C by more than 30% and has reasonable stability. The DMFC testing of the membrane electrode assembly of these catalysts reveal that the power density of the best catalyst, MCN-150(Pt-Ru) exceeds by more than two times that of the commercial anode catalyst.
SponsorThe authors acknowledge KACST for funding this work through project No. 08-ENE 53-4 as part of NPST. S. Zaidi is grateful to Center for Advanced Materials, Qatar University for the funding support (Qatar University Internal Grant No. QUUG-CAM-15/16-2). A. Vinu is also grateful to Australian Research Council for the Future Fellowship award (FT100100970) and University of South Australia for the start-up grants.
Languageen
PublisherElsevier
SubjectCatalysts
Direct Methanol fuel cell
Methanol electro-oxidation
Support materials
TitlePt-Ru nanoparticles functionalized mesoporous carbon nitride with tunable pore diameters for DMFC applications
TypeArticle
Pagination50-58
Volume Number252
dc.accessType Abstract Only


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