Electronically modified Pd catalysts supported on N-doped carbon for the dehydrogenation of formic acid

In this study, an electronically modified Pd nanocatalyst supported on nitrogen-doped carbon (Pd/N–C) was synthesized by a facile, scalable synthetic method. The electronic interaction between the nitrogen atoms incorporated into the carbon support and Pd active sites, as evidenced by X-ray photoele...

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Bibliographic Details
Published in:International journal of hydrogen energy 2016-09, Vol.41 (34), p.15453-15461
Main Authors: Jeon, Mina, Han, Da Jung, Lee, Kug-Seung, Choi, Sun Hee, Han, Jonghee, Nam, Suk Woo, Jang, Seong Chul, Park, Hyun S., Yoon, Chang Won
Format: Article
Language:English
Subjects:
Dehydrogenation
Formic acid
Nitrogen doping
Palladium catalyst
PEMFC
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Summary:In this study, an electronically modified Pd nanocatalyst supported on nitrogen-doped carbon (Pd/N–C) was synthesized by a facile, scalable synthetic method. The electronic interaction between the nitrogen atoms incorporated into the carbon support and Pd active sites, as evidenced by X-ray photoelectron spectroscopy (XPS), resulted in the formation of electron-rich Pd sites. The resulting Pd catalyst demonstrated enhancement in catalytic activity for the dehydrogenation of formic acid via the activation of C–H bonds in H–COOH. Finally, a hydrogen generation system fueled by formic acid was designed and further integrated with a polymer electrolyte membrane fuel cell (PEMFC) stack for the successful demonstration of stable, practical production of hydrogen, generating a fuel cell power of 180 W over 1 h without noticeable catalytic deactivation. •Efficient formic acid (FA) dehydrogenation is demonstrated using Pd nanocrystals.•Electronically modified Pd/N–C catalysts are synthesized by a scalable method.•Nitrogen atoms doped to carbon enhance the metal-support interactions of Pd/N-C.•FA dehydrogenation system is employed to power a 200 W PEMFC over 1 h.
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2016.04.102