نتایج جستجو برای: cu based catalyst

تعداد نتایج: 3021400  

Journal: :Chemcatchem 2022

This work shows the effect of selected ionic liquids on catalytic performance a Cu/Al2O3 catalyst towards citral hydrogenation. The was prepared using combination wet impregnation and strong electrostatic interaction technique. coated with three liquids, namely: [C4C1Pyrr][OTf], [C2C1C1Im][NTf2], [C2C1Im][NTf2] resulting in Cu-based SCILL catalysts (solid an liquid layer). fresh used were chara...

2007
Shenghu Zhou Bryan W. Eichhorn

Title of Dissertation/Thesis: Architecturally Controlled Bimetallic Nanoparticles for Heterogeneous Catalysis Shenghu Zhou, Doctor of Philosophy, 2007 Thesis Directed By: Professor Bryan W. Eichhorn Department of Chemistry and Biochemistry This work develops synthetic methods for architecturally controlled AuPt and CuPt bimetallic nanomaterials. The AuPt heteroaggregate, AuPt alloy spherical na...

Journal: :Chemical communications 2016
Anindita Chakraborty Sohini Bhattacharyya Arpan Hazra Ashta Chandra Ghosh Tapas Kumar Maji

A new 3D porous anionic MOF (AMOF-1) based on Zn(II) and a flexible tetracarboxylate linker has been synthesized. AMOF-1 showed potential for capture and removal of toxic metal ions from aqueous solution with a detection limit in the ppm level. The Cu(II)@AMOF-1' hybrid obtained by post-synthetic metalation is studied as a heterogeneous catalyst for the synthesis of benzimidazole derivatives.

Journal: :ACS catalysis 2013
Jinho Kim Shannon S Stahl

An efficient catalytic method has been developed for aerobic oxidation of primary amines to the corresponding nitriles. The reactions proceed at room temperature and employ a catalyst consisting of (4,4'- t Bu2bpy)CuI/ABNO (ABNO = 9-azabicyclo[3.3.1]nonan-3-one N-oxyl). The reactions exhibit excellent functional group compatibility and substrate scope, and are effective with benzylic, allylic a...

Journal: :Chemical communications 2010
Byoung Se Lee Mihye Yi So Young Chu Ja Young Lee Hye Rim Kwon Kyu Reon Lee Donghyeon Kang Wan Seop Kim Heung Bin Lim Jouhahn Lee Hyung-Joong Youn Dae Yoon Chi Nam Hwi Hur

Copper nitride nanoparticles supported on a mesoporous superparamagnetic silica microsphere exhibit superior activity toward the Huisgen cycloaddition of azides and alkynes. The nitride catalyst offers significant advantages over homogeneous Cu catalysts.

Journal: :Chemical communications 2016
Xiyu Li Peng Cui Wenhui Zhong Jun Li Xijun Wang Zhaowu Wang Jun Jiang

Based on DFT calculations, we propose a TM@CN hybrid structure, in which the single-atom transition metal (TM = Pt, Pd, Co, Ni, Cu) is supported by graphitic carbon nitride (g-CN), as a promising high-performance OER catalyst. Our work reveals the importance of local TM coordination in catalysts for the OER, which would lead to a new class of low-cost, durable and efficient OER catalysts.

2018
Christian Ahoba-Sam Kamelia V K Boodhoo Unni Olsbye Klaus-Joachim Jens

Cu nanoparticles are known to be very active for methanol (MeOH) synthesis at relatively low temperatures, such that smaller particle sizes yield better MeOH productivity. We aimed to control Cu nanoparticle (NP) size and size distribution for catalysing MeOH synthesis, by using the spinning disk reactor. The spinning disk reactor (SDR), which operates based on shear effect and plug flow in thi...

Journal: :Chemical communications 2013
John-Michael Collinson James D E T Wilton-Ely Silvia Díez-González

Immobilised [Cu(NHC)] catalysts are reported for the preparation of 1,2,3-triazoles. In addition to showing outstanding catalytic activity, the catalyst systems are easy to prepare and can be recycled many times.

An efficient method has been developed for synthesis of 1,4-disubstituted 1,2,3-triazoles using the silica-anchored Cu(I) aminothiophenol complex [SiO2-AT-Cu(I)] as a novel heterogeneous catalyst. The prepared catalyst is characterized by the FT-IR spectroscopy, and TGA, SEM, and ICP techniques. Terminal alkynes react with aroyl bromides and sodium azide in the presence of CuI anchor...

An efficient method has been developed for synthesis of 1,4-disubstituted 1,2,3-triazoles using the silica-anchored Cu(I) aminothiophenol complex [SiO2-AT-Cu(I)] as a novel heterogeneous catalyst. The prepared catalyst is characterized by the FT-IR spectroscopy, and TGA, SEM, and ICP techniques. Terminal alkynes react with aroyl bromides and sodium azide in the presence of CuI anchor...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید