A copper catalyst based on a delafossite precursor (CuAlO(2)) displays high activity and extraordinary lifetime in the gas-phase oxidation of HCl to Cl(2), representing a cost-effective alternative to RuO(2)-based catalysts for chlorine recycling.
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http://dx.doi.org/10.1039/c1cc11891a | DOI Listing |
Int J Biol Macromol
January 2025
Department of Statistics, Imam Khomeini International University, Qazvin, Iran.
Determination of hydrogen peroxide (HO) is of great importance in many systems for controlling the quality of products, food safety, and medical diagnostics. In this work, a highly sensitive photoluminescence film sensor was synthesized based on chitosan (CS), polyvinyl alcohol (PVA), and terephthalic acid (TPA), in the presence of copper (II) ions for determination of hydrogen peroxide. TPA was used as a sensitive probe for detection of hydroxyl radicals produced in a photo-Fenton-like process.
View Article and Find Full Text PDFAdv Mater
January 2025
State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China.
Copper-based electrocatalysts are recognized as crucial catalysts for CO electroreduction into multi-carbon products. However, achieving copper-based electrocatalysts with adjustable valences via one-step facile synthesis remains a challenge. In this study, Cu/CuO heterostructure is constructed by adjusting the anion species of the Cu ions-containing electrolyte during electrodeposition synthesis.
View Article and Find Full Text PDFMolecules
January 2025
School of Environment, South China Normal University, Guangzhou 510006, China.
The development of efficient and sustainable photocatalysts for wastewater treatment remains a critical challenge in environmental remediation. In this study, a ternary photocatalyst, Cu-CuO/g-CN, was synthesized by embedding copper-copper oxide heterostructural nanocrystals onto g-CN nanosheets via a simple deposition method. Structural and optical characterization confirmed the successful formation of the heterostructure, which combines the narrow bandgap of CuO, the high stability of g-CN, and the surface plasmon resonance (SPR) effect of Cu nanoparticles.
View Article and Find Full Text PDFOrg Lett
January 2025
Department of Chemistry, College of Science, China Agricultural University, 2 Yuanmingyuan West Road, Beijing 100193, P. R. China.
A three-component cascade boronation-dearomatization reaction of alkenes, a diboron compound, and a pyridinium salt is diclosed, affording chiral boron-containing 1,4-dihyropyridines in high yields (≤98%) and diastereoselectivity (≤10:1 dr), along with excellent enantioselectivity (typically >99% ee). The catalytic system performs efficiently at low catalyst loadings (1 mol %) and was tested with >50 examples, including some biologically active molecules.
View Article and Find Full Text PDFJ Org Chem
January 2025
Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei 430030, People's Republic of China.
A novel copper-catalyzed formal diastereoselective [4 + 3] cycloaddition of 2-arylaziridines and 2-substituted cyclopentadiene was developed. This transformation provided an efficient protocol for the assembly of a highly strained bridged azabicyclo[3.2.
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