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Regulating the production distribution in Ni-Cu nanoparticle mediated nitrile hydrogenation.
J Colloid Interface Sci
April 2025
College of Chemical and Biological Engineering, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Zhejiang University, 310027, Hangzhou, PR China; Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Institute of Zhejiang University - Quzhou, 324000, Quzhou, PR China. Electronic address:
The selective hydrogenation of nitrile compounds represents a pivotal area of research within both industrial and academic catalysis. In this study, we prepared Ni-Cu bimetallic catalysts through a co-deposition-crystallization sequence, aimed at the efficient production of primary and secondary amines. The enhanced selectivity for primary amines is attributed to the downshift of the d-band center of NiCu, which weakens the adsorption of key imine intermediates.
View Article and Find Full Text PDFCarboxyl-Group-Bearing Metal Corroles of Cobalt, Manganese and Copper for Electrocatalytic Hydrogen Evolution.
Chempluschem
January 2025
School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory of Fuel Cell Technology, South China University of Technology, Guangzhou, 510641, China.
Article Synopsis
- The study focused on synthesizing 5,15-bis(perfluorophenyl)-10-(4-carboxyphenyl) corrole and its metal complexes with Co(III), Mn(III), and Cu(III) to investigate their ability to catalyze the hydrogen evolution reaction (HER).
- Various proton sources, including AcOH, trifluoroacetic acid, and TsOH, were tested in dimethylformamide to analyze the pathways (EECC, EECEC, EEECEC) for HER based on acidity and concentration.
- Among the complexes, the Co corrole exhibited the highest efficiency with a turnover frequency of 201 s, showing the catalytic activity ranking as Co > Cu > Mn in
Experimental Analysis for the Performance Assessment and Characteristics of Enhanced Magnesium Composites Reinforced with Nano-Sized Silicon Carbide Developed Using Powder Metallurgy.
ACS Omega
February 2024
Department of Industrial Engineering, King Khalid University, Abha 61421, Saudi Arabia.
Magnesium, which is lightweight and abundant by nature, was widely used in the 19th century to make parts for automobiles and airplanes. Due to their superior strength-to-weight ratios, magnesium alloys were favored for engineering applications over unadulterated magnesium. These alloys result from the combination of magnesium with various metals, including aluminum (Al), titanium (Ti), zinc (Zn), manganese (Mn), calcium (Ca), lithium (Li), and zirconium (Zr).
View Article and Find Full Text PDFThermal Stability of Cu-Al-Ni Shape Memory Alloy Thin Films Obtained by Nanometer Multilayer Deposition.
Nanomaterials (Basel)
September 2023
Departamento de Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), Apto. 644, 48080 Bilbao, Spain.
Cu-Al-Ni is a high-temperature shape memory alloy (HTSMA) with exceptional thermomechanical properties, making it an ideal active material for engineering new technologies able to operate at temperatures up to 200 °C. Recent studies revealed that these alloys exhibit a robust superelastic behavior at the nanometer scale, making them excellent candidates for developing a new generation of micro-/nano-electromechanical systems (MEMS/NEMS). The very large-scale integration (VLSI) technologies used in microelectronics are based on thin films.
View Article and Find Full Text PDFEffects of Process Parameters on Bond Properties of Ag-2.35Au-0.7Pd-0.2Pt-0.1Cu Alloy Wire.
Micromachines (Basel)
August 2023
School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000, China.
Bond properties were performed on Ag-2.35Au-0.7Pd-0.
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