English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Interfacial charge distributions in carbon-supported palladium catalysts

MPS-Authors
/persons/resource/persons21378

Blume,  Raoul
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22071

Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

External Resource
No external resources are shared
Fulltext (public)

s41467-017-00421-x.pdf
(Publisher version), 3MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Rao, R. G., Blume, R., Hansen, T. W., Fuentes, E., Dreyer, K., Moldovan, S., et al. (2017). Interfacial charge distributions in carbon-supported palladium catalysts. Nature Communications, 8: 340. doi:10.1038/s41467-017-00421-x.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-CF3B-F
Abstract
Controlling the charge transfer between a semiconducting catalyst carrier and the supported transition metal active phase represents an elite strategy for fine turning the electronic structure of the catalytic centers, hence their activity and selectivity. These phenomena have been theoretically and experimentally elucidated for oxide supports but remain poorly understood for carbons due to their complex nanoscale structure. Here, we combine advanced spectroscopy and microscopy on model Pd/C samples to decouple the electronic and surface chemistry effects on catalytic performance. Our investigations reveal trends between the charge distribution at the palladium–carbon interface and the metal’s selectivity for hydrogenation of multifunctional chemicals. These electronic effects are strong enough to affect the performance of large (~5 nm) Pd particles. Our results also demonstrate how simple thermal treatments can be used to tune the interfacial charge distribution, hereby providing a strategy to rationally design carbon-supported catalysts.