Gas phase reactions have been a subject of research interest, enabling reliable strategies to explore the stability and reactivity of metal clusters as well as to probe novel superatoms that form the building blocks to assemble new materials with tailored properties. Coinage metal clusters have attracted great research attention due to their simple electronic shell structures and rich photochemical and catalytic properties at relatively low cost. This perspective focuses on the recent progress made in studying the gas phase reactions of undamaged and single-atom-doped Cu and Ag clusters with O, CO, and NO molecules. It covers various aspects, such as reaction mechanisms, relationships between structure and activity, control of reactivity by changing cluster size and composition, and the identification of novel superatoms (Cu, Ag, Ag, and AgO). Lastly, we provide a detailed account of the obstacles and prospective avenues for future research in order to establish a connection between these findings and nanocluster systems that have practical applications.
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http://dx.doi.org/10.1021/acs.jpclett.4c02582 | DOI Listing |
Phys Chem Chem Phys
January 2025
Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France.
Stereochemistry plays a key role in both fundamental chemical processes and the dynamics of a large set of molecular systems of importance in chemistry, medicine and biology. Predicting the chemical transformations of organic precursors in such environments requires detailed kinetic models based on laboratory data. Reactive intermediates play a critical role in constraining the models but their identification and especially their quantification remain challenging.
View Article and Find Full Text PDFEnviron Sci Technol
January 2025
Zhejiang Key Laboratory of Clean Energy Conversion and Utilization, Science and Education Integration College of Energy and Carbon Neutralization, Zhejiang University of Technology, Hangzhou 310014, China.
J Colloid Interface Sci
December 2024
School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. Electronic address:
Developing an efficient and economical indoor air purification system for catalytic decomposition of formaldehyde is of great significance. In this work, an indoor air conditioner capable of purifying formaldehyde was designed by directly integrating defective WO/TiO nanotube catalytic fin, with both thermal conductivity and gas-phase photoelectrocatalytic (GPEC) properties, onto the condenser component. The electrochemical treatment of the catalytic fin introduced a substantial number of oxygen vacancies, resulting in a significant increase in carrier concentration and mobility to the semi-metallic level.
View Article and Find Full Text PDFJ Chromatogr A
December 2024
Technical University Dresden, Food Chemistry, Bergstraße 66, Dresden D-01069, Germany.
Current manual multi-methods for analysis of pesticides are limited due to their complexity and scope of pesticides, high demand for time and solvent or unsuitability for broad types of food of animal origin. The following research presents a novel automated sample preparation and purification method for various food matrices of animal origin, including milk, raw milk, dairy products, cheese, eggs, fish, fish products, and offal. The Ultra-Turrax® Tube Drive System enables quick fat extraction using a solvent mixture of cyclohexane/ethyl acetate/acetonitrile.
View Article and Find Full Text PDFWaste Manag
December 2024
Department of Mineral Processing, CSIR-IMMT, Bhubaneswar, Odisha 751013, India. Electronic address:
This study employed a lab-scale fluidized bed steam gasification setup to perform the co-gasification experiments with blast furnace dust (BFD) and petcoke (PC) - wastes from the steel and refining industries, respectively. Multiple experiments were conducted at the optimized conditions to decipher the effects of the mineralogical content of the feed samples on the gasification performance parameters. With the addition of iron and zinc-abundant BFD sample to PC, an effective enhancement in the ability of the gasifier to produce hydrogen-rich synthesis gas was observed, attributed to an increase in surface active sites for gasification reactivity.
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