Proton modified Pt zeolite fuel cell electrocatalysts

Yao, Jun and Yao, Y. and Mirzaii, H. (2014) Proton modified Pt zeolite fuel cell electrocatalysts. In: Renewable Energy Congress WREC XIII, 3-8 August 2014, London, UK.

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Abstract

NaY Zeolite is selected as a suitable material to host 1.5 wt% Platinum (Pt) loading on zeolite using ion exchange method (a) Pt(NH3)4(NO3)2 without excess NH4NO3 nitrate and (b) Pt(NH3)4(NO3)2 with excess NH4NO3 nitrate. The structure/reactivity relationship of Pt nanoparticle has been experimentally studied via Nafion@ bound electrodes to investigate the interaction nature of Pt with zeolite and electron transfer using the extended X-ray adsorption fine structure (EXAFS) and Pt particle was predicted at 0.7 – 1.5 (nm). Pt oxides can be electrochemically reduced via a hydrogen ‘spillover’ phenomenon. A highly dispersed small Pt particle distribution can be achieved with excessive H+ ions on zeolite acidic sites.

Keywords:Pt/Y zeolite electrocatalyst, nanoparticle, CV, EXAFS, fuel cell
Subjects:F Physical Sciences > F200 Materials Science
F Physical Sciences > F342 Quantum Mechanics
F Physical Sciences > F170 Physical Chemistry
F Physical Sciences > F320 Chemical Physics
H Engineering > H800 Chemical, Process and Energy Engineering
Divisions:College of Science
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http://purl.org/dc/terms/hasVersionhttp://eprints.lincoln.ac.uk/18352/
ID Code:16656
Deposited On:07 Feb 2015 20:41

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