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PtxAg100−x nano-alloy decorated N-doped reduced graphene oxide: a promising electrocatalyst for direct urea fuel cells

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dc.contributor.author Amin, Iram en_US
dc.contributor.author Bhat, Sajad Ahmad en_US
dc.contributor.author Bhat, Murtaza Manzoor en_US
dc.contributor.author Sofi, Feroz Ahmad en_US
dc.contributor.author Bhat, Aamir Y. en_US
dc.contributor.author Ingole, Pravin P. en_US
dc.contributor.author MONDAL, RITWIK en_US
dc.contributor.author THOTIYL, MUSTHAFA OTTAKAM en_US
dc.contributor.author Bhat, Mohsin Ahmad en_US
dc.date.accessioned 2023-12-19T11:01:32Z
dc.date.available 2023-12-19T11:01:32Z
dc.date.issued 2023-12 en_US
dc.identifier.citation New Journal of Chemistry, 47(48), 22146-22156. en_US
dc.identifier.issn 1144-0546 en_US
dc.identifier.issn 1369-9261 en_US
dc.identifier.uri https://doi.org/10.1039/D3NJ04229D en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/8350
dc.description.abstract Direct urea fuel cells (DUFCs) offer an environmentally friendly, and cost-effective way to turn wastewater into energy. However, the paucity of efficient, cost-effective, and electrochemically stable urea electro-oxidation reaction (UOR) specific electrocatalysts continues to impede the design and development of practically useful DUFCs. The present work explores the design and development of N-doped graphene (NGr)-supported platinum (Pt) plus silver (Ag) alloy nanohybrids (PtxAg100−x-NGr) as potential UOR electrocatalysts. Our results suggest that the electrocatalytic performance of PtxAg100−x-NGr is very sensitive toward the composition of this nanohybrid. The nanohybrid with a Pt : Ag ratio of 1 : 1, referred to as Pt50Ag50-NGr in the MS, exhibits the best UOR electrocatalytic performance. The Pt50Ag50-NGr composite exhibits a Tafel slope of just ∼12.92 mV dec−1, and a UOR-specific activity of nearly 4028 mA cm−2 mg cat−1 at 1.673 V (vs. RHE) and requires an overpotential of just 1.617 V (vs. RHE) to maintain a UOR specific current density of 10 mA cm−2. These parameters qualify the Pt50Ag50-NGr as a promising anode material for DUFCs. This we demonstrate through the design of a Pt50Ag50-NGr anode-based prototype urea-H2O2 fuel cell that delivers an open circuit voltage (OCV) of 750 mV and a power density of ∼5.75 mW cm−2. en_US
dc.language.iso en en_US
dc.publisher Royal Society of Chemistry en_US
dc.subject Palladium Nanoparticles en_US
dc.subject Hydrogen- Production en_US
dc.subject Oxidation en_US
dc.subject Efficient en_US
dc.subject Ethanol en_US
dc.subject Challenges en_US
dc.subject Nanosheets en_US
dc.subject Catalysts en_US
dc.subject Glycine en_US
dc.subject Carbon en_US
dc.subject 2023-DEC-WEEK1 en_US
dc.subject TOC-DEC-2023 en_US
dc.subject 2023 en_US
dc.title PtxAg100−x nano-alloy decorated N-doped reduced graphene oxide: a promising electrocatalyst for direct urea fuel cells en_US
dc.type Article en_US
dc.contributor.department Dept. of Chemistry en_US
dc.identifier.sourcetitle New Journal of Chemistry en_US
dc.publication.originofpublisher Foreign en_US


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