Search Results - "active site"

Xinglan Chen, Lingzhu Gou, Yuanyuan Wang, Jinxia Yang, Yeze Dong, Baoyuan Xie, Dekui Zhang Key Laboratory of Digestive Diseases of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou, 730030, People’s Republic of ChinaCorrespondence: Dekui Zhang, Email zhangdk8616@126.comAbstract: Hel...

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Hydrogen evolution reaction (HER) plays a crucial role in developing clean and renewable hydrogen energy technologies. However, conventional HER catalysts rely on expensive and scarce noble metals, which is a significant challenge for practical application. Recently, two-dimensional transition metal...

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Nowadays cardiovascular diseases are the main cause of death among the population around the word. The development of new drugs, giving a possibility to normalize blood pressure, is a promising direction in the field of pharmacy and medicine. Now inhibitors of angiotensinconverting enzyme (ACE) are...

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Although urban archaeological research yields a wealth of information, interpreting material culture in a complex context complicates the estimation of the artefact-space-human relationship. Drawing on the archaeological research on active (still operating) sites, this study presents a simulation o...

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Abstract Recently, research on aqueous zinc‐ion batteries (AZIBs) has always focused on improving the energy storage performance by increasing the number of active sites, particularly in designing organic/polymer materials with a high density of active sites. However, does a higher density of active...

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Researchers have recently developed various surface engineering approaches to modify environmental catalysts and improve their catalytic activity. Defect engineering has proved to be one of the most promising modification methods. Constructing defects on the surface of catalytic materials can effect...

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Introducing oxygen vacancies (OVs) in BiOCl catalyst has been regarded as an effective strategy in broadening the narrow range of light response and enhance separation efficiency of photo-induced carriers. However, the commonly-used methods for OVs generation are mostly realized under relatively har...

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Quinazolin-4(3H)-one derivatives exhibiting a wide spectrum of a pharmacological activity, represent a promising class of substances used to obtain antibacterial agents, which is especially important in the context of the emergence of pathogenic microorganisms’ resistance to drugs used in medicine....

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Abstract Cascade reactions that form multiple chemical bonds in one synthetic step are important for the synthesis of complex molecules. Molecular catalysts for cascade reactions generally require two or more catalytic centers, yet anchoring distinct catalytic centers onto a single molecular catalys...

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Developing efficient, stable, and inexpensive catalysts for the preferential CO oxidation in H2 (CO-PROX) over a wide temperature range in the presence of CO2 and H2O is indispensable for the hydrogen purification process. Herein, CuO was introduced to the CeMnO2-supported Pt catalyst to modulate th...

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Hybrid materials combining oxides and sulfides have emerged as promising electrocatalysts for the hydrogen evolution reaction (HER). However, their efficacy in replacing the noble metal electrocatalysts is challenged due to insufficient charge transfer and corrosion losses in acidic media. Hybrid na...

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Abstract Two dimensional (2D) conjugated metal–organic frameworks (2D c‐MOFs) have emerged as promising electroactive materials for energy storage owing to their high conductivity and large charge carrier mobility. However, their broader implementation is hindered by limitations in capacity and cycl...

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Objectives. To take into account the change in the number of active sites during the adsorptioncatalytic deformation and deactivation of a catalyst surface by means of a catalytic poison when calculating the turnover frequency (TOF) of a hydrogenation catalyst.Methods. The activity was determined by...

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Cu-based catalysts are advantageous for selectively catalyzing the hydrogenation of the CO bonds in furfural (FF). Nevertheless, debates are ongoing regarding the identification of active sites. FeCuxMg catalysts were prepared using a hydrotalcite precursor. During the early stages of the reaction,...

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