Roman Fiala

TL;DR: Using DFT calculations, a specific structural element is identified, a ceria "nanopocket", which binds Pt(2+) so strongly that it withstands sintering and bulk diffusion and is therefore identified as an anchoring site for Pt-CeO2 nanocomposites showing high Pt efficiency in fuel-cell catalysis.

TL;DR: The synchrotron radiation X-ray photoelectron spectra showed the formation of cerium oxide with completely ionized Pt(2+,4+) species, and with the Pt( 2+)/Pt(4+) ratio strongly dependent on the substrate.

TL;DR: In this article, thin-film Pt catalysts with ultra-low metal loadings were prepared by magnetron sputtering onto various carbon-based substrates, and the performance of these catalysts acting as anode, cathode, or both electrodes in a proton exchange membrane fuel cell (PEMFC) was investigated in H2/O2 and H 2/air mode.

TL;DR: In this paper, the authors measured Pt-CeOx thin film anode catalyst activity in a hydrogen PEMFC and compared it with performance of a standard reference cell, using photoelectron spectroscopy.

TL;DR: In this article, a family of novel anode catalysts consisting of thin films of ceria with low Pt loadings sputtered on a nanostructured carbon support was designed to increase the cost-efficiency in proton exchange membrane fuel cells.