Rapid Assessment of Sputtered Nanoparticle Ionic Liquid Combinations,ACS Combinatorial Science

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Rapid Assessment of Sputtered Nanoparticle Ionic Liquid Combinations
ACS Combinatorial Science Pub Date : 2018-03-09 00:00:00 , DOI: 10.1021/acscombsci.8b00017
Hajo Meyer ₁ , Michael Meischein ₁ , Alfred Ludwig ₁

Affiliation

A high-throughput method is presented for the efficient assessment of the formation and stability of nanoparticle suspensions in ionic liquids which differ in their cations and anions. As a proof of principle, Ag was sputtered on a cavity array filled with 9 different ionic liquids. Not all nanoparticle ionic liquid combinations form a stable suspension with separated nanoparticles. Directly after synthesis, the formation of nonagglomerated nanoparticle suspensions with sizes from 4 to 9 nm is observed by transmission electron microscopy as well as different time dependencies of the suspension stabilities. Only 3 out of the tested 9 nanoparticle ionic liquid suspensions show long-term stability: Stable suspension of spherical nanoparticles are formed in the ionic liquids 1-butyl-3-methylimidazolium bis(perfluoroethylsulfonyl)imide [Bmim][(Pf)₂N], 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [Bmim][(Tf)₂N], and 1-butyl-1-methylpyrrolidinum bis(trifluoromethylsulfonyl)imide [BmPyr][(Tf)₂N].

中文翻译：

溅射纳米粒子离子液体组合的快速评估

提出了一种高通量方法，用于有效评估离子液体中阳离子和阴离子不同的纳米颗粒悬浮液的形成和稳定性。作为原理的证明，将Ag溅射在填充有9种不同离子液体的腔阵列上。并非所有的纳米粒子离子液体组合都与分离的纳米粒子形成稳定的悬浮液。刚合成后，通过透射电子显微镜以及悬浮液稳定性的不同时间依赖性，观察到了尺寸为4至9 nm的非团聚纳米颗粒悬浮液的形成。在测试的9种纳米粒子离子液体悬浮液中，只有3种显示出长期稳定性：球形球形纳米粒子的稳定悬浮液在离子液体1-丁基-3-甲基咪唑鎓双（全氟乙基磺酰基）酰亚胺[Bmim] [（Pf）]中形成₂ N]，1-丁基-3-甲基咪唑鎓双（三氟甲基磺酰基）酰亚胺[Bmim] [（Tf）₂ N]和1-丁基-1-甲基吡咯烷鎓双（三氟甲基磺酰基）酰亚胺[BmPyr] [（Tf）₂ N] 。

更新日期：2018-03-09

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