The Hydrogenation of Crotonaldehyde on PdCu Single Atom Alloy Catalysts.

Recyclable PdCu single atom alloys supported on AlO were applied to the selective hydrogenation of crotonaldehyde to elucidate the minimum number of Pd atoms required to facilitate the sustainable transformation of an α,β-unsaturated carbonyl molecule. It was found that, by diluting the Pd content of the alloy, the reaction activity of Cu nanoparticles can be accelerated, enabling more time for the cascade conversion of butanal to butanol. In addition, a significant increase in the conversion rate was observed, compared to bulk Cu/AlO and Pd/AlO catalysts when normalising for Cu and Pd content, respectively.

Chikungunya outbreak in Bangladesh (2017): sociodemographic and clinical characteristics of patients from three hotspots.

Background: Chikungunya is a severely debilitating disease. Bangladesh witnessed one of the largest outbreaks in 2017. Here, we described the clinical profile of the chikungunya outbreak in Bangladesh and its heterogeneity across three hotspots.