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 |