000176785 001__ 176785
000176785 005__ 20181203022707.0
000176785 0247_ $$2doi$$a10.1039/c2cp23931k
000176785 02470 $$2ISI$$a000302363700018
000176785 037__ $$aARTICLE
000176785 245__ $$aA remarkable anion effect on palladium nanoparticle formation and stabilization in hydroxyl-functionalized ionic liquids
000176785 269__ $$a2012
000176785 260__ $$c2012
000176785 336__ $$aJournal Articles
000176785 520__ $$aPd nanoparticles (NPs) with a small size and narrow size distribution were prepared from the decomposition of Pd(OAc)(2) in a series of hydroxyl-functionalized ionic liquids (ILs) comprising the 1-(2'-hydroxylethyl)-3-methylimidazolium cation and various anions, viz. [C(2)OHmim][OTf] (2.4 +/- 0.5 nm), [C(2)OHmim][TFA] (2.3 +/- 0.4 nm), [C(2)OHmim][BF4] (3.3 +/- 0.6 nm), [C(2)OHmim][PF6] (3.1 +/- 0.7 nm) and [C(2)OHmim][Tf2N] (4.0 +/- 0.6 nm). Compared with Pd NPs isolated from the non-functionalized IL, [C(4)mim][Tf2N] (6.2 +/- 1.1 nm), it would appear that the hydroxyl group accelerates the formation of the NPs, and also helps to protect the NPs from oxidation once formed. Based on the amount of Pd(OAc) 2 that remains after NP synthesis (under the given conditions) the ease of formation of the Pd NPs in the [C(2)OHmim](+)-based ILs follows the trend [Tf2N](-) , [PF6](-) > [BF4](-) > [OTf](-) > [TFA](-). Also, the ability of the [C2OHmim]+-based ILs to prevent the Pd NPs from undergoing oxidation follows the trend [Tf2N](-) > [PF6](-) > [TFA](-) > [OTf](-) > [BF4](-). DFT calculations were employed to rationalize the interactions between Pd NPs and the [C(2)OHmim](+) cation and the various anions.
000176785 6531_ $$aTransition-Metal Nanoparticles
000176785 6531_ $$aEffective Core Potentials
000176785 6531_ $$aCross-Coupling Reactions
000176785 6531_ $$aSize-Dependent Formation
000176785 6531_ $$aMolecular Calculations
000176785 6531_ $$aGold Nanoparticles
000176785 6531_ $$aSelective Hydrogenation
000176785 6531_ $$aRuthenium Nanoparticles
000176785 6531_ $$aBiphasic Hydrogenation
000176785 6531_ $$aCatalysts
000176785 700__ $$0245182$$g207081$$aYuan, Xiao
000176785 700__ $$0242070$$g181610$$aYan, Ning
000176785 700__ $$aKatsyuba, Sergey A.
000176785 700__ $$aZvereva, Elena E.
000176785 700__ $$aKou, Yuan
000176785 700__ $$aDyson, Paul J.$$g149418$$0240015
000176785 773__ $$j14$$tPhysical Chemistry Chemical Physics$$q6026-6033
000176785 909C0 $$xU9$$0252010$$pLCOM
000176785 909CO $$pSB$$particle$$ooai:infoscience.tind.io:176785
000176785 917Z8 $$x135992
000176785 937__ $$aEPFL-ARTICLE-176785
000176785 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000176785 980__ $$aARTICLE