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dc.contributor.authorWahab, Md A
dc.contributor.authorJoseph, Jickson
dc.contributor.authorAtanda, Luqman
dc.contributor.authorSultana, Ummul K
dc.contributor.authorBeltramini, Jorge N
dc.contributor.authorOstrikov, Kostya
dc.contributor.authorWill, Geoffrey
dc.contributor.authorO'Mullane, Anthony P
dc.contributor.authorAbdala, Ahmed
dc.description.abstractSynthesizing metal-free, low-cost, and durable electrocatalysts that are active for the oxygen evolution reaction (OER) is essential for the development of commercial alkaline water electrolyzers. Herein, we develop a nanoconfined synthesis approach for the fabrication of a metal-free graphitic mesoporous carbon nitride (gMesoCN) electrocatalyst with a high surface area of 406 m2/g and high nitrogen content of 48%. This is achieved by a nanohard-templating approach through simple polymerization of guanidine hydrochloride (GndCl) as a single carbon-nitrogen source inside the organized mesopore channels of a mesoporous SBA15 silica nanotemplate. The produced material is characterized with X-ray diffraction (XRD) and transmission electron microscopy (TEM), which confirmed the formation of a well-ordered mesoporous carbon nitride, while analysis of the pore size distribution indicated the formation of uniformly sized pore channels of 4.56 nm. X-ray photoelectron spectroscopy (XPS) indicated that gMesoCN consisted of C and N. The metal-free gMesoCN material showed good electrocatalytic performance for the OER in alkaline medium, where a Tafel slope of 52.4 mV/dec indicated favorable OER kinetics. Significantly, the gMesoCN material demonstrates long-term durability with 98.4% retention of current density after 24 h. The reported gMesoCN material is inexpensive, environmentally friendly, and easy-to-synthesize with the potential for applicability in the field of electrocatalysis.
dc.publisherAmerican Chemical Society
dc.relation.ispartofjournalACS Applied Energy Materials
dc.subject.keywordsScience & Technology
dc.subject.keywordsPhysical Sciences
dc.subject.keywordsChemistry, Physical
dc.subject.keywordsEnergy & Fuels
dc.titleNanoconfined Synthesis of Nitrogen-Rich Metal-Free Mesoporous Carbon Nitride Electrocatalyst for the Oxygen Evolution Reaction
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationWahab, MA; Joseph, J; Atanda, L; Sultana, UK; Beltramini, JN; Ostrikov, K; Will, G; O'Mullane, AP; Abdala, A, Nanoconfined Synthesis of Nitrogen-Rich Metal-Free Mesoporous Carbon Nitride Electrocatalyst for the Oxygen Evolution Reaction, ACS Applied Energy Materials, 2020, 3 (2), pp. 1439-1447
gro.hasfulltextNo Full Text
gro.griffith.authorOstrikov, Kostya (Ken)

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