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Ordered Mesoporous C3N5 with a Combined Triazole and Triazine Framework and Its Graphene Hybrids for the Oxygen Reduction Reaction (ORR)

Title
Ordered Mesoporous C3N5 with a Combined Triazole and Triazine Framework and Its Graphene Hybrids for the Oxygen Reduction Reaction (ORR)
Authors
Kim, In YoungKim, SunghoJin, XiaoyanPremkumar, SelvarajanChandra, GoutamLee, Nam-SukMane, Gurudas P.Hwang, Seong-JuUmapathy, SivaVinu, Ajayan
Ewha Authors
황성주
SCOPUS Author ID
황성주scopus
Issue Date
2018
Journal Title
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN
1433-7851JCR Link

1521-3773JCR Link
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION vol. 57, no. 52, pp. 17135 - 17140
Keywords
electrocatalystsN-rich carbon nitridesoxygen reduction reactionporous materialstriazoles
Publisher
WILEY-V C H VERLAG GMBH
Indexed
SCI; SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Mesoporous carbon nitrides (MCN) with C3N4 stoichiometry could find applications in fields ranging from catalysis, sensing, and adsorption-separation to biotechnology. The extension of the synthesis of MCN with different nitrogen contents and chemical structures promises access to a wider range of applications. Herein we prepare mesoporous C3N5 with a combined triazole and triazine framework via a simple self-assembly of 5-amino-1H-tetrazole (5-ATTZ). We are able to hybridize these nanostructures with graphene by using graphene-mesoporous-silica hybrids as a template to tune the electronic properties. DFT calculations and spectroscopic analyses clearly demonstrate that the C3N5 consists of 1 triazole and 2 triazine moieties. The triazole-based mesoporous C3N5 and its graphene hybrids are found to be highly active for oxygen reduction reaction (ORR) with a higher diffusion-limiting current density and a decreased overpotential than those of bulk g-C3N4.
DOI
10.1002/anie.201811061
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자연과학대학 > 화학·나노과학전공 > Journal papers
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