QUILL/School of Chemistry and Chemical Engineering, The Queen's University of Belfast, Belfast, BT9 5AG, United Kingdom.
Dalton Trans. 2012 Jan 7;41(1):219-27. doi: 10.1039/c1dt11578b. Epub 2011 Nov 18.
Two stable nanofluids comprising of mixed valent copper(I,II) oxide clusters (<1 nm) suspended in 1-butyl-3-methylimidazolium acetate, [C(4)mim][OAc], and copper(II) oxide nanoparticles (<50 nm) suspended in trioctyl(dodecyl)phosphonium acetate, [P(8 8 8 12)][OAc], were synthesised in a facile one-pot reaction from solutions of copper(II) acetate hydrate in the corresponding ionic liquids. Formation of the nanostructures was studied using (13)C NMR spectroscopy and differential scanning calorimetry (DSC). From a solution of Cu(OAc)(2) in 1-ethyl-3-methylimidazolium acetate, [C(2)mim][OAc], crystals were obtained that revealed the structure of [C(2)mim][Cu(3)(OAc)(5)(OH)(2)(H(2)O)]·H(2)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.
两种稳定的纳米流体由混合价态的氧化铜（I，II）簇（<1nm）悬浮在 1-丁基-3-甲基咪唑乙酸盐 [C（4）mim][OAc]中，和氧化铜纳米颗粒（<50nm）悬浮在三辛基（十二烷基）磷酸乙酸盐 [P（88812）][OAc]中，通过铜（II）乙酸盐水溶液在相应的离子液体中的简便一锅法反应合成。使用（13）C NMR 光谱和差示扫描量热法（DSC）研究了纳米结构的形成。从 Cu（OAc）（2）在 1-乙基-3-甲基咪唑乙酸盐 [C（2）mim][OAc]的溶液中获得了晶体，揭示了 [C（2）mim][Cu（3）（OAc）（5）（OH）（2）（H（2）O）]·H（2）O 的结构，表明在反应过程中形成了铜羟基簇。使用透射电子显微镜（TEM）和 X 射线光电子能谱（XPS）研究了合成的纳米结构。使用红外和紫外可见光谱、热重分析（TGA）、差示扫描量热法（DSC）和密度法检查了制备的 IL-纳米流体的物理性质。
