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Abstract
The modification of Pt/C catalyst by using ionic liquids to improve their catalyst activities has been reported by many researchers, but their practical behavior in operating fuel cells is still unknown. In this work, we study the ionic liquid modified Pt/C nanoparticle catalysts within cathodes for proton exchange membrane fuel cells. The influence of the ionic liquid amount, adsorption times and dispersing solvents are investigated. The experiment results show the best performance enhancement is achieved through two-time surface modification with 2 wt-% ionic liquid solution. The mechanisms are explored with the attribution to the high oxygen solubility in the ionic liquid enabling an improved oxygen diffusion in micropores and to good hydrophobicity facilitating water expelling from the active sites in fuel cell operation.[Figure not available: see fulltext.].
Original language | English |
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Pages (from-to) | 695-701 |
Number of pages | 7 |
Journal | Frontiers of Chemical Science and Engineering |
Volume | 13 |
Issue number | 4 |
Early online date | 24 Jul 2019 |
DOIs | |
Publication status | Published - 1 Dec 2019 |
Keywords
- adsorption
- electrocatalyst
- electrode
- ionic liquid
- oxygen reduction reaction
- PEMFC
ASJC Scopus subject areas
- General Chemical Engineering
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Dive into the research topics of 'Ionic liquid modified Pt/C electrocatalysts for cathode application in proton exchange membrane fuel cells'. Together they form a unique fingerprint.Activities
- 2 Conference, workshop or symposium
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Electrodes from Ionic Liquid Modified Microporous ZnCoNC Electrocatalysts For Polymer Electrolyte Fuel Cells
Du, S. (Speaker)
30 Aug 2019Activity: Academic and Industrial events › Conference, workshop or symposium
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Ioinc Liquid Modified ZnCoNC Electrocatalysts for Proton Exchange Membrane Fuel Cells (B1403)
Du, S. (Speaker)
4 Jul 2019Activity: Academic and Industrial events › Conference, workshop or symposium