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Processamento de nanomateriais em hidrotermal convencional e hidrotermal de microondas
(2007-07-01)
Copper, zinc and nickel oxides present different properties in nanostructured form. These nanomaterials present very interesting morphologies such as urchin and flowers. This differents arquitechures can be employed in ...
Processamento de nanomateriais em hidrotermal convencional e hidrotermal de microondas
(2007-07-01)
Copper, zinc and nickel oxides present different properties in nanostructured form. These nanomaterials present very interesting morphologies such as urchin and flowers. This differents arquitechures can be employed in ...
Synthesis, characterization, and nanocatalysis application of Core–Shell Superparamagnetic Nanoparticles of Fe3O4@Pd
(Csiro Publishing, 2015-07)
There is a wide number of different synthetic methods to obtain magnetite (Fe3O4) superparamagnetic nanoparticles (SPNPs). However, only a few are able to produce very small and well defined SPNPs with narrow size distribution. ...
Inorganic nanoparticles for reduction of hexavalent chromium
Hexavalent Chromium [Cr(VI)] is a highly carcinogenic and toxic material. It is one of the major
environmental contaminants in aquatic system. Its removal from aqueous medium is a subject of
current research. Various ...
Gold nanoparticle catalysis of the cis-trans isomerization of azobenzene
(Royal Society of Chemistry, 2013-08)
Ablated, “pseudo-naked” gold nanoparticles (AuNPs) catalyze the cis–trans isomerization of substituted azobenzenes. para-Substitution was found to affect the rate of isomerization, suggesting the participation of AuNP-mediated ...
A recoverable Pd nanocatalyst for selective semi-hydrogenation of alkynes: hydrogenation of benzyl-propargylamines as a challenging model
(Royal Society of Chemistry, 2014-07)
We describe a recyclable heterogeneous palladium nanocatalyst for the selective hydrogenation of alkynes to alkenes. The catalyst was prepared through the decomposition of the organometallic precursor Pd2(dba)3 over a ...
Magnetic Pd nanocatalyst Fe3O4Pd for C–C bond formation and hydrogenation reactions
(Springer, 2018-05)
Small core-shell Fe3O4@Pd superparamagnetic nanoparticles (MNPs) were obtained with good control in size and shape distribution by metal-complex thermal decomposition in organic media. The role of the stabilizer in the ...
Sulfur-stabilised copper nanoparticles for the aerobic oxidation of amines to imines under ambient conditions
(Royal Society of Chemistry, 2021-05)
The stabilisation of metal nanoparticles and control of their oxidation state are crucial factors in nanocatalysis. Elemental sulfur has been found to be a cheap and effective stabilising agent for copper nanoparticles in ...