Liquid-phase acrylic acid hydration over solid-phase catalysts is a key reaction for the industrial productionof 3-hydroxypropionic acid. However, the relevant literature primarily focuses on the experimental aspects ...Liquid-phase acrylic acid hydration over solid-phase catalysts is a key reaction for the industrial productionof 3-hydroxypropionic acid. However, the relevant literature primarily focuses on the experimental aspects of catalystscreening and exploring reaction conditions, with few accurate descriptions of the reaction kinetics and determination ofthe reaction mechanism. Here, we combined kinetics experiments and theoretical calculations to elucidate the kinetics andmechanism of acrylic acid hydration on a resin catalyst. The pseudo-homogeneous model, and Langmuir-Hinshelwood-Haugen-Watson and Elie-Riedel (ER) heterogeneous models were used to explain the experimental kinetics data. TheER model can explain the experimental data very well, suggesting strong adsorption of acrylic acid on the surface of theresin catalyst. Furthermore, density functional theory calculations show that the hydration follows a stepwise, rather than aconcerted, reaction pathway. The present study provides theoretical insights into the reaction mechanism and kinetics, fillingthe gap in our understanding of the reaction on a fundamental level.展开更多
随着对致心律失常性右室心肌病(arrhythmogenic right ventricular cardiomyopathy,ARVC)研究的进展,目前已不再认为ARVC只是桥粒蛋白基因突变引起的一种累及右室的遗传性心肌病。ARVC可以由非桥粒蛋白的多种基因突变或非遗传因素引起,...随着对致心律失常性右室心肌病(arrhythmogenic right ventricular cardiomyopathy,ARVC)研究的进展,目前已不再认为ARVC只是桥粒蛋白基因突变引起的一种累及右室的遗传性心肌病。ARVC可以由非桥粒蛋白的多种基因突变或非遗传因素引起,并且可以首先累及左室。因此,2019年制定ARVC诊断标准的国际专家组提出了该病的新的临床分型,并对2010年的诊断标准作出了新的评价。本文就ARVC的临床分型、致病基因、诊断及治疗研究进展等方面进行综述。展开更多
文摘Liquid-phase acrylic acid hydration over solid-phase catalysts is a key reaction for the industrial productionof 3-hydroxypropionic acid. However, the relevant literature primarily focuses on the experimental aspects of catalystscreening and exploring reaction conditions, with few accurate descriptions of the reaction kinetics and determination ofthe reaction mechanism. Here, we combined kinetics experiments and theoretical calculations to elucidate the kinetics andmechanism of acrylic acid hydration on a resin catalyst. The pseudo-homogeneous model, and Langmuir-Hinshelwood-Haugen-Watson and Elie-Riedel (ER) heterogeneous models were used to explain the experimental kinetics data. TheER model can explain the experimental data very well, suggesting strong adsorption of acrylic acid on the surface of theresin catalyst. Furthermore, density functional theory calculations show that the hydration follows a stepwise, rather than aconcerted, reaction pathway. The present study provides theoretical insights into the reaction mechanism and kinetics, fillingthe gap in our understanding of the reaction on a fundamental level.
文摘随着对致心律失常性右室心肌病(arrhythmogenic right ventricular cardiomyopathy,ARVC)研究的进展,目前已不再认为ARVC只是桥粒蛋白基因突变引起的一种累及右室的遗传性心肌病。ARVC可以由非桥粒蛋白的多种基因突变或非遗传因素引起,并且可以首先累及左室。因此,2019年制定ARVC诊断标准的国际专家组提出了该病的新的临床分型,并对2010年的诊断标准作出了新的评价。本文就ARVC的临床分型、致病基因、诊断及治疗研究进展等方面进行综述。
