Zeolite supported palladium nanoparticle characterization for fuel cell application

Yao, Jun and Yao, Yufeng (2017) Zeolite supported palladium nanoparticle characterization for fuel cell application. International Journal of Hydrogen Energy, 42 (29). pp. 18560-18567. ISSN 0360-3199

Full content URL: http://dx.doi.org/10.1016/j.ijhydene.2017.04.182


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Palladium (Pd) has been widely used as a type of hydrogen storage material and has
attracted much attention for fuel cell applications, due to its high solubility and mobility of
hydrogen in Pd. In this study, Pd nanoparticles made by 1.5 wt% Pd loading on Y-zeolite
under pre-treatment was employed to investigate their electrochemical activities using
cyclic voltammetry (CV), and detailed local structural characterization of Pd cluster was
probed by the extended X-ray absorption fine structure. Pd nanoparticle sizes were predicted
at 0.81 nme1.2 nm and the CV measurement has demonstrated that Pd zeolite
catalyst has exhibited a similar tendency to those 40% Pd on XC-72R carbon. The hydrogen
spillover process and surface conductance pathways contribute to the electrochemical
behavior on Pd surface. In electrochemical environment, hydrogen is able to form hydride
phase on Pd surface by either direct hydrogen adsorption or migrating to the centre of Pd.
© 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Keywords:Zeolite supported palladium, nanoparticle, EXAFS and CV techniques, Fuel cell application
Subjects:F Physical Sciences > F200 Materials Science
F Physical Sciences > F170 Physical Chemistry
H Engineering > H221 Energy Resources
Divisions:College of Science > School of Engineering
ID Code:27539
Deposited On:19 May 2017 11:15

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