2019/03/28 by Stewart F. Parker, Sanghamitra Mukhopadhyay, Mónica Jiménez‐Ruiz +1 · 1 citation
Energy · Materials Science · Chemistry · #Electrocatalysts for Energy Conversion #Catalytic Processes in Materials Science #Electrochemical Analysis and Applications
paper · pdf · doi:10.1002/chem.201900351
openalex publication_date 2019/03/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Abstract The interaction of hydrogen with platinum is enormously important in many areas of catalysis. The most significant of these are in polymer electrolyte membrane fuel cells (PEMFC), in which carbon‐supported platinum is used to dissociate hydrogen gas at the anode. The nature of adsorbed hydrogen on platinum has been studied for many years on single‐crystal surfaces, on high‐surface area‐platinum metal (Raney platinum and platinum black), and on supported catalysts. Many forms of vibrational spectroscopy have played a key role in these studies, however, there is still no clear consensus as to the assignment of the spectra. In this work, ab initio molecular dynamics (AIMD) and lattice dynamics were used to study a 1.1 nm nanoparticle, Pt 44 H 80 . The results were compared to new inelastic neutron scattering spectra of hydrogen on platinum black and of a carbon‐supported platinum fuel cell catalyst and an assignment scheme that rationalises all previous data is proposed.