Hierarchical approach of mitigating carbon influence in nano-porous electro-catalyst with unique surface islands for efficient methanol resistive oxygen reduction
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Hierarchical approach of mitigating carbon influence in nano-porous electro-catalyst with unique surface islands for efficient methanol resistive oxygen reduction
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| Creator |
Anandha ganesh, P.
Jeyakumar, D. |
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| Subject |
Electrodics and Electrocatalysis
Electrochemical Materials Science |
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| Description |
For the first time, we report a facile one pot aqueous method for support-free Pd85Pt15 nano-porous
structures (NPoS) synthesis from PdMn nano-alloys at ambient conditions. A hierarchical approach
was successfully employed through a simple “self-settlement” process with descending amounts of
carbon to carbon-free electro-catalysts to improve catalyst utilization and avoid carbon degradation
during fuel cell operating conditions. Pd85Pt15 NPoS exhibits enhanced methanol resistive oxygen
reduction reaction (ORR) activity owing to the presence of highly active and unique surface PdPt islands
compared to HiSPEC Pt/C catalysts. Accelerated durability tests of the support-free PdPt NPoS show
enhanced durability in harsh acidic environment (1.0 N H2SO4) compared to HiSPEC Pt/C and DOE 2017
e2020 durability target. Preliminary direct methanol fuel cell studies using hierarchically derived
Pd85Pt15 NPoS variants were performed at ultra-low Pt content. The effects of carbon content and catalyst
layer thickness on fuel cell activities are well discussed
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| Publisher |
Elsevier
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| Date |
2018-01-04
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3243/1/289-2018.pdf
Anandha ganesh, P. and Jeyakumar, D. (2018) Hierarchical approach of mitigating carbon influence in nano-porous electro-catalyst with unique surface islands for efficient methanol resistive oxygen reduction. Electrochimica Acta, 262. pp. 306-318. ISSN 0013-4696 |
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| Relation |
http://www.elsevier.com/locate/electacta
http://cecri.csircentral.net/3243/ |
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