Evolution of the Active Phase of Pt/Sn-AlO Catalysts During Acidic Impregnation and Their Use in Propane Dehydrogenation.

Alumina-supported PtSn is an industrialized catalyst for propane dehydrogenation. During the catalyst impregnation, the acidic impregnation solution with chloroplatinic acid as a precursor inevitably leads to the partial dissolution of the surface of amphoteric alumina support and finally varies catalytic performance. Herein, the structure evolution of the active phase, induced by an impregnated acidic solution, was studied with special care.

An Active and Regenerable Nanometric High-Entropy Catalyst for Efficient Propane Dehydrogenation.

Propane dehydrogenation (PDH) is crucial for propylene production, but commercially employed Pt-based catalysts face susceptibility to deactivation due to the Pt sintering during reaction and regeneration steps. Here, we report a SiO supported nanometric (MnCoCuZnPt) high-entropy PDH catalyst with high activity and stability. The catalyst exhibited a super high propane conversion of 56.

Efficacy of hydroxychloroquine in hand osteoarthritis: A protocol for systematic review and meta-analysis of randomized clinical trial.

Background: Symptoms of hand osteoarthritis result in activity limitations and lower quality of life. Hydroxychloroquine, which has been used successfully in the treatment of many autoimmune diseases, can suppress inflammation and might also be beneficial in hand osteoarthritis.

Methods: We plan to perform a systematic review and meta-analysis of randomized clinical trial to determine the symptom-modifying effect of hydroxychloroquine in hand osteoarthritis.

Ability of prebiotic polysaccharides to activate a HIF1α-antimicrobial peptide axis determines liver injury risk in zebrafish.

Natural polysaccharides have received much attention for their ability to ameliorate hepatic steatosis induced by high-fat diet. However, the potential risks of their use have been less investigated. Here, we show that the exopolysaccharides (EPS) from GG (LGG) and BL23 reduce hepatic steatosis in zebrafish fed a high-fat diet, while BL23 EPS, but not LGG EPS, induce liver inflammation and injury.