BEGIN:VCALENDAR VERSION:2.0 PRODID:-//chikkutakku.com//RDFCal 1.0//EN X-WR-CALDESC:GoogleカレンダーやiCalendar形式情報を共有シェ アしましょう。近所のイベントから全国のイベントま で今日のイベント検索やスケジュールを決めるならち っくたっく X-WR-CALNAME:ちっくたっく X-WR-TIMEZONE:UTC BEGIN:VEVENT SUMMARY:Solvent-controlled amine speciation enables selective CO formation in reactive CO2 capture DTSTART;VALUE=DATE-TIME:20260826T132000Z DTEND;VALUE=DATE-TIME:20260826T134000Z UID:296914236903 DESCRIPTION:The presence of amines in reactive CO2 capture introduces addi tional\ninterfacial complexity through the formation of amine–CO2 adduct s\nwhose speciation\, charge\, and transport properties directly govern\ne lectrocatalytic performance. Here\, we show that the solvent\nenvironment controls the nature of these adducts and\, consequently\,\ntheir reactivit y and selectivity at solid–liquid interfaces. Using\nmonoethanolamine (M EA) in dimethyl sulfoxide (DMSO)\, we demonstrate a\nshift from ionic carb amate–ammonium pairs in aqueous media to\npredominantly neutral carbamic acid species in nonaqueous electrolyte.\nThis transition reduces electros tatic screening by ammonium ions\,\nenhances accessibility of the reactive CO2 intermediate at the\ninterface\, and suppresses competing proton-coup led reactions such as\nhydrogen evolution. As a result\, selective CO form ation is achieved\nwith Faradaic efficiencies up to ~78% using earth-abund ant catalysts\nunder pure CO2 feeds\, and ~35–43% at current densities n ear 100 mA\ncm-2 under oxygen-rich conditions representative of flue gas ( 17% CO2\,\n17% O2). Stability tests over tens of electrochemical cycles sh ow\nminimal loss in selectivity\, indicating the robustness of the\nnonaqu eous capture–conversion system. Collectively\, these results\nestablish solvent-controlled amine speciation as a key design\nparameter for enginee ring reactive capture electrolytes under\nindustrially relevant conditions .\n LOCATION:McCormick Place Convention Center - N230b - https://acs.digitelli nc.com/live/37 END:VEVENT END:VCALENDAR