Nano‐Porous Electro‐Catalyst with Textured Surface Active Pd‐Pt Islands for Efficient Methanol Tolerant Oxygen Reduction Reaction
Herein, we report a simple and elegant aqueous synthesis of Pd100‐xPtx (x=5, 10, 15 and 20) nano‐porous structures (NPoS) derived from Pd100‐xMn2x (x=5, 10, 15 and 20) nano‐alloys. Pd100‐xPtx/C NPoS exhibit enhanced oxygen reduction reaction (ORR) activity along with higher retention of figure of me...
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| Veröffentlicht in: | ChemistrySelect (Weinheim) 2017-08, Vol.2 (25), p.7544-7552 |
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| creator | Anandha Ganesh, P. Jeyakumar, D. |
| description | Herein, we report a simple and elegant aqueous synthesis of Pd100‐xPtx (x=5, 10, 15 and 20) nano‐porous structures (NPoS) derived from Pd100‐xMn2x (x=5, 10, 15 and 20) nano‐alloys. Pd100‐xPtx/C NPoS exhibit enhanced oxygen reduction reaction (ORR) activity along with higher retention of figure of merit in the presence of methanol compared to HiSPEC Pt/C catalyst. The ORR mass and specific activity values of Pd100‐xPtx/C NPoS are high and exceed the U.S. department of energy (DOE) 2017–2020 targets. The enhanced methanol tolerance and ORR activity of Pd100‐xPtx/C NPoS is attributed to their unique surface active Pd−Pt islands on nano‐porous Pd. Direct methanol fuel cell performance studies employed using Pd85Pt15/C NPoS as cathode material (0.4 mgPt/cm2) and HiSPEC PtRu/C NPs as anode material (0.2 mgPt/cm2) shows improved direct methanol fuel cell (DMFC) single cell activity at low Pt loading and the results are presented.
Textured unique surface for methanol tolerance ORR: Pd85Pt15/C nano‐porous electro‐catalyst exhibits efficient methanol resistant oxygen reduction activity attributed to the presence of surface textured unique Pd−Pt islands. |
| doi_str_mv | 10.1002/slct.201700992 |
| format | Article |
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Textured unique surface for methanol tolerance ORR: Pd85Pt15/C nano‐porous electro‐catalyst exhibits efficient methanol resistant oxygen reduction activity attributed to the presence of surface textured unique Pd−Pt islands.</abstract><doi>10.1002/slct.201700992</doi><tpages>9</tpages></addata></record> |
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| source | Wiley Journals |
| subjects | Direct methanol fuel cells Methanol tolerant oxygen reduction Nano-porous rotating ring disk electrode Surface Pd−Pt islands |
| title | Nano‐Porous Electro‐Catalyst with Textured Surface Active Pd‐Pt Islands for Efficient Methanol Tolerant Oxygen Reduction Reaction |
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