Development of new electrocatalyst for malti-electron reduction of carbon monoxide using electrochemically renewable hydride

2017 Fiscal Year Final Research Report

• Project/Area Number: 26410113
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Synthetic chemistry
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Koizumi Take-aki 東京工業大学, 科学技術創成研究院, 准教授 (60322674)
• Research Collaborator: TANAKA KOJI
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 異種二核錯体 / 一酸化炭素還元 / ルテニウム錯体 / ロジウム錯体 / 電解還元反応触媒 / 電気化学 / ヒドリド錯体 / 結晶構造

Outline of Final Research Achievements

This study is to develop a technique to realize the reductive activation of carbon monoxide, which is essential for methanol production by multi-electron reduction of carbon dioxide. In order to establish a method for logically reduction of carbon monoxide, new hetero-binuclear complexes were developped, and their chemical and electrochemical properties and catalytic activity for CO reduction were investigated. New binuclear complexes connecting an Ru complex for capturing and activating carbon monoxide and an Rh complex capable of supplying electrochemically renewable hydride were synthesized and characterized. Electroreduction of the Ru-Rh complex, [(tpy)Ru(CO)(bpp)RhCl(Cp*)](PF6)2, showed generation of MeOH from GC analysis. In addition, from the ESI-MS analysis, the dinuclear structure of the complex was kept after the electroreduction. From these results, the complex is considered to be useful as an electrolytic reduction reaction catalyst for carbon monoxide.

Free Research Field

有機金属化学