Literature regarding the mechanism of the electrochemical oxidation of aqueous sulfur
dioxide to sulfuric acid has been critically evaluated to provide a detailed understanding of …

This book focuses on the recent research progress on the fundamental understanding of the
materials degradation phenomena in PEFC, for automotive applications. On a …

The impact of air contaminants such as sulfur compounds (SO2, H2S) and nitrogen
compounds (NOx and NH3) was investigated using subscale fuel cells. The severity of the …

The poisoning of the oxygen-reduction reaction (ORR) by adsorbed sulfur-containing
species was quantified for platinum fuel-cell materials using rotating ring disk electrode …

Sulfur contaminants in air pose a threat to the successful operation of proton exchange
membrane fuel cells (PEMFCs) via poisoning of the Pt-based cathodes. The deactivation …

Electron spectroscopic and diffraction results obtained in ultra-high-vacuum, combined with
cyclic voltammetric data, are reported for sulfur adlayers deposited from aqueous sulfide and …

Sulfur dioxide is a common air pollutant that has an adverse impact on proton exchange
membrane fuel cells (PEMFCs). The present study reports the spatial performance and …

Ambient contaminants, eg, sulfur dioxide (SO2), lead to severe Pt deactivation and
performance loss of practical proton exchange membrane (PEM) fuel cells, which need to be …

Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were employed
to investigate changes in the cathode after the introduction of SO2. The decay in …

Thermochemical processes are being developed to provide global-scale quantities of
hydrogen. A variant on sulfur-based thermochemical cycles is the hybrid sulfur (HyS) …