期刊
JOURNAL OF ENERGY CHEMISTRY
卷 25, 期 2, 页码 199-207出版社
ELSEVIER
DOI: 10.1016/j.jechem.2016.01.007
关键词
Electrocatalysis; Ionic liquid; Solid catalyst with ionic liquid layer; Ligand effect; Mass transfer; Fuel cell; Water electrolysis
资金
- German Research Council (DFG)
The performance of an electrocatalyst, which is needed e.g. for key energy conversion reactions such as hydrogen evolution, oxygen reduction or CO2 reduction, is determined not only by the inherent structure of active sites but also by the properties of the interfacial structures at catalytic surfaces. Ionic liquids (ILs), as a unique class of metal salts with melting point below 100 degrees C, present themselves as ideal modulators for manipulations of the interfacial structures. Due to their excellent properties such as good chemical stability, high ionic conductivity, wide electrochemical windows and tunable solvent properties the performance of electrocatalysts can be substantially improved through ILs. In the current minireview, we highlight the critical role of the IL phase at the microenvironments created by the IL, the liquid electrolyte, catalytic nanoparticles and/or support materials, by detailing the promotional effect of IL in electrocatalysis as reaction media, binders, and surface modifiers. Updated exemplary applications of IL in electrocatalysis are given and moreover, the latest developments of IL modified electrocatalysts following the Solid Catalyst with Ionic Liquid Layer (SCILL) concept are presented. (C) 2016 Science Press and Dalian Institute of Chemical Physics. All rights reserved.
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