表題番号:2020C-259 日付:2021/04/09
研究課題カーボンリサイクルを実現する非貴金属系電極材料および新規還元電極構造の創製
研究者所属(当時) 資格 氏名
(代表者) 理工学術院 先進理工学部 教授 福永 明彦
研究成果概要
The 21st United Nations Framework Convention on Climate Change (UNFCCC) Conference on Climate Change (UNFCCC), held in Paris in 2015, adopted an effort to limit the temperature increase by the end of the 21st century to within 1.5 degrees Celsius compared to pre-industrial levels. Therefore, in addition to the promotion of the introduction of renewable energies that do not emit CO2, the establishment of carbon recycling technologies (mineralization, artificial photosynthesis, methanation, etc.) that actively utilize CO2 has become an urgent issue. Among them, the electroreduction of CO2 has the potential to produce CO2-free fuels and chemicals in addition to the effective use of CO2 by using surplus renewable energy during the daytime, and research and development directly related to its practical application is expected. However, the electroreduction of CO2 has so far produced several products such as carbon monoxide (CO), methane (CH4), and acetylene (C2H4), and the high reaction rate required for practical use has not been achieved. In this study, we aimed to elucidate the electrolysis conditions under which CO production can be increased to 100%, targeting the application to chemical production processes. Specifically, we examined the effect of using a pulse current.