Recent developments in the study of ionic liquid interfaces using X-ray photoelectron spectroscopy and potential future directions
Recent developments in the study of ionic liquid interfaces using X-ray photoelectron spectroscopy and potential future directions
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DOI：
10.1039/c2cp24087d
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发表时间：
2012-01-01
影响因子：
3.3
通讯作者：
Steinrueck, Hans-Peter
中科院分区：
文献类型：
--
作者：
Steinrueck, Hans-Peter
给出了x射线光电子能谱在研究离子液体界面和相关体性质方面的潜力。为了允许不同IL性质的相互关联，该研究仅限于咪唑基系统。通过烷基链长度的系统变化，通过对不同阴离子的研究，通过引入官能团，得到了il的表面取向、富集效应、正负离子相互作用以及与密度和表面张力等宏观性质的相关性的详细信息。此外，超薄离子液体层在各种基质上的分子排列和生长行为，化学反应的原位监测以及过渡金属配合物的溶解也得到了解决。
A perspective is given on the potential of X-ray photoelectron spectroscopy to investigate ionic liquid (IL) interfaces and related bulk properties. To allow for cross-correlation of different IL properties, the study is restricted to imidazolium-based systems. By systematic variation of alkyl chain lengths, by investigation of different anions, and by introduction of functional groups detailed information on surface orientation, enrichment effects, cation-anion interactions, and the correlation to macroscopic properties such as density and surface tension of ILs are derived. Furthermore, the molecular arrangement and growth behaviour of ultrathin ionic liquid layers on various substrates, in situ monitoring of chemical reactions, and the dissolution of transition metal complexes are addressed.