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Plasmonic photocatalysis presents opportunities for efficient utilization of sunlight for chemical transformations, yet its mechanisms, including the relative contribution of thermal and non-thermal effects, remain controversial. Here the authors develop methodology to monitor both effects and propose a metric, overall light effectiveness, to evaluate and maximize the total light-driven enhancement.
Reforming of methane with H2S bears a potential for the practical generation of hydrogen from sour natural gas but remains underutilized. Here the authors analyse the reactivity of metal oxides of group 4–6 elements, which are commonly regarded as inert supports for methane activation, and highlight the substantial reactivity of these material ascribed to highly dynamic cation-bound sulfur species.