| [Ru(PNP–Me)Cl2(PPh3)]and elecrtocatalyst for hydrogen evaluation and CO2 reduction |
| کد مقاله : 1084-CNF |
| نویسندگان |
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محمدحسین حسینی کوپایی *1، خدایار قلی وند2 1دانشگاه تربیت مدرسی شیمی معدنی 2دانشگا تربیت مدرس |
| چکیده مقاله |
| Pincer complexes support by pincer ligands with tridentate meridional geometry and good stability structure [1, 2]. Among different pincer ligands, the symmetric pincer ligands bearing two same lateral donor arms on the central donor unit have been synthesized in the early stage [1]. One of these ligands are P^N^P,s, classified in aliphatic or aromatic structure based on their backbone [2]. PNP pincer ligands that includ triazine backbone, and phosphorus coordinating group were broadly used in transition metal chemistry [3]. In this study, ruthenium pincer complexes {[Ru(PNP–Me)Cl2(PPh3)] (1) based on PNP-Me (N, N´-Bis(diphenylphosphino)-2,6-diamino-4-methyl-1,3,5-triazine) was prepared. The pincer ligands and complexes were characterized by FT-IR, UV-Vis, 1H NMR, 13C NMR, and 31P NMR. The pincer complexes were used as a homogeneous electrocatalyst to CO2 reduction and Hydrogen evolution reaction in acetonitrile solution. electrocatalytical activity were recorded by cyclic voltammetry and chronoamrometry. Increasing purging time of CO2 from 5 to 30 min led to increase in current density, indicate progressive CO2 reduction process. Also, cyclic voltammetry studies on HER reaction, demonstrate that increasing concentration of HCl, causes an increase in current density, a good evidence to H2 evolution. High electrocatalitical properties were observed using the PNP pincer complexes for hydrogen evolution and CO2 reduction reactions. |
| کلیدواژه ها |
| ruthenium PNP pincer complex / Homogeneous electrocatalysis/ HER/ CO2 reduction |
| وضعیت: چکیده برای ارائه به صورت پوستر پذیرفته شده است |