نتایج جستجو برای: copper catalysis

تعداد نتایج: 108411  

2008
Kylee Korte

The presence of either copper(I) or copper(II) chloride in the polyol reduction of silver nitrate facilitates the production of silver nanowires. Silver nanowires have applications in many areas, including electronics and catalysis. These wires are produced quickly (in approximately one hour), with the synthesis being easily performed in disposable glass vials, using only pipettes to deliver re...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Janette Kropat Sean D Gallaher Eugen I Urzica Stacie S Nakamoto Daniela Strenkert Stephen Tottey Andrew Z Mason Sabeeha S Merchant

Inorganic elements, although required only in trace amounts, permit life and primary productivity because of their functions in catalysis. Every organism has a minimal requirement of each metal based on the intracellular abundance of proteins that use inorganic cofactors, but elemental sparing mechanisms can reduce this quota. A well-studied copper-sparing mechanism that operates in microalgae ...

2017
Wengang Xu Naohiko Yoshikai

Pivalophenone N–H imine has been found to serve as a prominent substrate for directed C–H alkylation and arylation reactions with alkyl bromides and aryl chlorides, respectively, under cobalt–N-heterocyclic carbene (NHC) catalysis. Unlike the case of the parent pivalophenone imine, the increased steric bulk of the resulting ortho-substituted pivalophenone imines allows them to undergo clean imi...

Journal: :Nature nanotechnology 2012
Jun Ge Jiandu Lei Richard N Zare

Flower-shaped inorganic nanocrystals have been used for applications in catalysis and analytical science, but so far there have been no reports of 'nanoflowers' made of organic components. Here, we report a method for creating hybrid organic-inorganic nanoflowers using copper (II) ions as the inorganic component and various proteins as the organic component. The protein molecules form complexes...

2011
Ram Prasad Pratichi Singh

In this review article various applications and preparation methods of copper chromite catalysts have been discussed. While discussing it is concluded that copper chromite is a versatile catalyst which not only catalyses numerous processes of commercial importance and national program related to defence and space research but also finds applications in the most concerned problem worldwide i.e. ...

Journal: :Biochimica Et Biophysica Acta - Bioenergetics 2022

In eukaryotes the bimetallic Cu/Zn superoxide dismutase (SOD) enzymes play important roles in biology of reactive oxygen species by disproportionating anion. Recently, we reported that fungal pathogen Candida albicans expresses a novel copper-only SOD, known as SOD5, lacks zinc cofactor and electrostatic loop (ESL) domain Cu/Zn-SODs for substrate guidance. Despite these abnormalities, C. SOD5 c...

In the present study, new multi-components spinel ferrite Zinc doped metallic ferrites are investigated. The synthesized compounds consisting of Zinc copper ferrite nanostructures were developed using the Co-precipitation technique. Powder X-ray diffraction pattern (XRD) confirms the formation of the spinel phase for all the samples. The lattice constant was studied through powder X-ray diffrac...

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