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Photocatalytic CO reduction into renewable hydrocarbon solar fuels is considered as a promising strategy to simultaneously address global energy and environmental issues. This study focused on the direct coupling of photocatalytic water splitting and thermocatalytic hydrogenation of CO in the conversion of CO -H O into fuels. Specifically, it was found that direct coupling of thermo- and photocatalysis over Au-Ru/TiO leads to activity 15 times higher (T=358 K; ca. 99 % CH selectivity) in the conversion of CO -H O into fuels than that of photocatalytic water splitting. This is ascribed to the promoting effect of thermocatalytic hydrogenation of CO by hydrogen atoms generated in situ by photocatalytic water splitting.

Introduction: Subcortical vascular mild cognitive impairment (svMCI) is the predemen-

Simple, fast, and accurate detection of food freshness is of considerable significance to ensure food safety. The pH values of foods can be good indicators of their freshness, which can be used for real-time detection of food quality. Herein, we fabricated a pH-sensing film for flexible smart labels based on hydroxypropyl guar (HPG), cellulose nanocrystal (CNC), 1-butyl-3-methylimidazolium chloride (BmimCl), a kind of ionic liquid (IL), and anthocyanin (Anth). We investigated the structure, optical properties, and mechanical strength of the composite films. These films can be used to detect ammonia (NH 3 ) generated from seafood during storage by pH-sensing capability and monitor the real-time freshness of seafood. The HPG/CNC/IL/Anth film exhibited several advantages, such as wide color-change range, easy identification, high sensitivity, good reversibility, excellent stability, and low detection limit. The pH-sensing films can function as flexible smart labels for real-time, visual, and accurate detection of food freshness in cold chain logistics and other fields.

Hierarchical structures of porous Cu/Zn@C materials via pyrolysis of Zn–Cu-BTC metal–organic frameworks give stable activity in the reverse water gas shift reaction, thanks to stabilization of the nanoparticles by carbon encapsulation.