Ionic-Liquid-Mediated Active-Site Control of MoS2 for the Electrocatalytic Hydrogen Evolution Reaction
摘要:
AbstractThe layered crystal MoS2 has been proposed as an alternative to noble metals as the electrocatalyst for the hydrogen evolution reaction (HER). However, the activity of this catalyst is limited by the number of available edge sites. It was previously shown that, by using an imidazolium ionic liquid as synthesis medium, nanometre‐size crystal layers of MoS2 can be prepared which exhibit a very high number of active edge sites as well as a de‐layered morphology, both of which contribute to HER electrocatalytic activity. Herein, it is examined how to control these features synthetically by using a range of ionic liquids as synthesis media. Non‐coordinating ILs with a planar heterocyclic cation produced MoS2 with the de‐layered morphology, which was subsequently shown to be highly advantageous for HER electrocatalytic activity. The results furthermore suggest that the crystallinity, and in turn the catalytic activity, of the MoS2 layers can be improved by employing an IL with specific solvation properties. These results provide the basis for a synthetic strategy for increasing the HER electrocatalytic activity of MoS2 by tuning its crystal properties, and thus improving its potential for use in hydrogen production technologies.
A Convenient Synthesis of Triflate Anion Ionic Liquids and Their Properties
作者:Nikolai V. Ignat’ev、Peter Barthen、Andryi Kucheryna、Helge Willner、Peter Sartori
DOI:10.3390/molecules17055319
日期:——
synthesis of high purity triflate ionic liquids via direct alkylation of organic bases (amines, phosphines or heterocyclic compounds) with methyl and ethyl trifluoromethanesulfonate (methyl and ethyl triflate) has been developed. Cheap and non-toxic dimethyl and diethyl carbonate serve as source for the methyl and ethyl groups in the preparation of methyl and ethyl triflate by this invented process. The properties
Solubilizing and Stabilizing Proteins in Anhydrous Ionic Liquids through Formation of Protein–Polymer Surfactant Nanoconstructs
作者:Alex P. S. Brogan、Jason P. Hallett
DOI:10.1021/jacs.5b13425
日期:2016.4.6
demonstrate for the first time that engineering the surface of a protein to yield protein-polymer surfactant nanoconstructs allows for dissolution of dry protein into dry ionic liquids. Using myoglobin as a model protein, we show that this method can deliver protein molecules with near native structure into both hydrophilic and hydrophobic anhydrous ionic liquids. Remarkably, using temperature-dependent synchrotron
[EN] 2,4- DIARYL - SUBSTITUTED [1,8] NAPHTHYRIDINES AS KINASE INHIBITORS FOR USE AGAINST CANCER<br/>[FR] [1,8]-NAPHTYRIDINES SUBSTITUÉES PAR 2,4-DIARYLE EN TANT QU'INHIBITEURS DE KINASE, DESTINÉES À UNE UTILISATION CONTRE LE CANCER
申请人:MERCK PATENT GMBH
公开号:WO2012000595A1
公开(公告)日:2012-01-05
The present invention relates to novel [1,8]naphthyridine derivatives of formula (I) and to the use of such compounds in which the inhibition, regulation and/or modulation of signal transduction by ATP consuming proteins like kinases plays a role, particularly to inhibitors of TGF-beta receptor kinases, and to the use of such compounds for the treatment of kinase-induced diseases, in particular for the treatment of tumors.
2,4-DIARYL - SUBSTITUTED [1,8] NAPHTHYRIDINES AS KINASE INHIBITORS FOR USE AGAINST CANCER
申请人:Dorsch Dieter
公开号:US20130102603A1
公开(公告)日:2013-04-25
The present invention relates to novel [1,8]naphthyridine derivatives of formula (I) and to the use of such compounds in which the inhibition, regulation and/or modulation of signal transduction by ATP consuming proteins like kinases plays a role, particularly to inhibitors of TGF-beta receptor kinases, and to the use of such compounds for the treatment of kinase-induced diseases, in particular for the treatment of tumors.
[(Ph)<sub>3</sub>PBr][Br<sub>7</sub>], [(Bz)(Ph)<sub>3</sub>P]<sub>2</sub>[Br<sub>8</sub>], [(<i>n</i>-Bu)<sub>3</sub>MeN]<sub>2</sub>[Br<sub>20</sub>], [C<sub>4</sub>MPyr]<sub>2</sub>[Br<sub>20</sub>], and [(Ph)<sub>3</sub>PCl]<sub>2</sub>[Cl<sub>2</sub>I<sub>14</sub>]: Extending the Horizon of Polyhalides via Synthesis in Ionic Liquids
作者:Michael Wolff、Alexander Okrut、Claus Feldmann
DOI:10.1021/ic201291k
日期:2011.11.21
[(Ph)3PBr][Br7], [(Bz)(Ph)3P]2[Br8], [(n-Bu)3MeN]2[Br20], [C4MPyr]2[Br20] ([C4MPyr] = N-butyl-N-methylpyrrolidinium), and [(Ph)3PCl]2[Cl2I14] were prepared by the reaction of dibromine and iodine monochloride in ionic liquids. The compounds [(Ph)3PBr][Br7] and [(Bz)(Ph)3P]2[Br8] contain discrete pyramidal [Br7]− and Z-shaped [Br8]2– polybromide anions. [(n-Bu)3MeN]2[Br20] and [C4MPyr]2[Br20] exhibit new infinite