Facile <em>in situ</em> synthesis of nanofluids based on ionic liquids and copper oxide clusters and nanoparticles


Autoria(s): Swadźba-Kwaśny, Malgorzata; Chancelier, Léa; Ng, Shieling; Manyar, Haresh G.; Hardacre, Christopher; Nockemann, Peter
Data(s)

2012

Resumo

<p>Two stable nanofluids comprising of mixed valent copper(<sub>I</sub>,<sub>II</sub>) oxide clusters (<1 nm) suspended in 1-butyl-3-methylimidazolium acetate, [C(<sub>4</sub>)mim][OAc], and copper(<sub>II</sub>) oxide nanoparticles (<50 nm) suspended in trioctyl(dodecyl) phosphonium acetate, [P-<sub>88812</sub>][OAc], were synthesised in a facile one-pot reaction from solutions of copper(<sub>II</sub>) acetate hydrate in the corresponding ionic liquids. Formation of the nanostructures was studied using <sup>13</sup>C NMR spectroscopy and differential scanning calorimetry (DSC). From a solution of Cu(OAc)<sub>2</sub> in 1-ethyl-3-methylimidazolium acetate, [C<sub>2</sub>mim][OAc], crystals were obtained that revealed the structure of [C<sub>2</sub>mim][Cu<sub>3</sub>(OAc)<sub>5</sub>(OH)<sub>2</sub>(H<sub>2</sub>O)]center dot H<sub>2</sub>O, indicating the formation of copper hydroxo-clusters in the course of the reaction. Synthesised nanostructures were studied using transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Physical properties of the prepared IL-nanofluids were examined using IR and UV-VIS spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and densitometry. </p>

Identificador

http://pure.qub.ac.uk/portal/en/publications/facile-in-situ-synthesis-of-nanouids-based-on-ionic-liquids-and-copper-oxide-clusters-and-nanoparticles(261a64a0-d635-499f-9cb5-0b6d76a0b313).html

http://dx.doi.org/10.1039/c1dt11578b

Idioma(s)

eng

Direitos

info:eu-repo/semantics/restrictedAccess

Fonte

Swadźba-Kwaśny , M , Chancelier , L , Ng , S , Manyar , H G , Hardacre , C & Nockemann , P 2012 , ' Facile in situ synthesis of nanofluids based on ionic liquids and copper oxide clusters and nanoparticles ' Dalton Transactions , vol 41 , no. 1 , pp. 219-227 . DOI: 10.1039/c1dt11578b

Palavras-Chave #/dk/atira/pure/subjectarea/asjc/1600/1604 #Inorganic Chemistry
Tipo

article