{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T04:18:10Z","timestamp":1791346690512,"version":"4.3.1"},"reference-count":59,"publisher":"American Chemical Society (ACS)","issue":"9","license":[{"start":{"date-parts":[[2025,3,3]],"date-time":"2025-03-03T00:00:00Z","timestamp":1740960000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["JP20H00282"],"award-info":[{"award-number":["JP20H00282"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,3,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The electrochemical CO2 reduction reaction (CO2RR) over Pt electrocatalysts in an aqueous solution system yields mainly H2 and a slight amount of carbon-based products. This limitation can be overcome by using a membrane electrode assembly (MEA) containing a Pt\/C electrocatalyst without any overpotential. However, the obtained CO2RR product was only CH4. In this study, we investigated the CO2RR using MEA containing a Pt0.9Ru0.1\/C electrocatalyst. Consequently, not only methane as a C1 product but also ethanol as a C2 product and acetone as a C3 product were produced at extremely small overpotentials. This is the first time in the literature that ethanol and acetone were produced from the CO2RR over a Pt\u2013Ru-based electrocatalyst. This fact was confirmed through mass spectrometry, gas chromatography, and isotope labeling experiments. The Faradaic efficiencies of CH4, C2H5OH, and CH3COCH3 were 20.6%, 5.9%, and 5.2%, respectively, and the total Faradaic efficiency was 31.7%. The three products were generated via the Langmuir\u2013Hinshelwood mechanism involving adsorbed CO (COads) and H atoms on the electrocatalyst. The adsorption configuration of COads determines the generation of methane, ethanol, and acetone. The C\u2013C coupling reactions occurred through the formation of COads clusters. Our findings promote the production of valuable C2+ compounds from the CO2RR, which is an important CO2 capture, utilization, and storage technology for realizing carbon neutrality.<\/jats:p>","DOI":"10.1021\/acsomega.4c10885","type":"journal-article","created":{"date-parts":[[2025,3,3]],"date-time":"2025-03-03T06:29:16Z","timestamp":1740983356000},"page":"9630-9638","source":"Crossref","is-referenced-by-count":7,"title":["Marked CO2 Reduction to Generate C1\u2013C3 Products\nUsing Pt0.9Ru0.1\/C-Based Membrane Electrode\nAssembly at Extremely Low Overpotentials"],"prefix":"10.1021","volume":"10","author":[{"given":"Shofu","family":"Matsuda","sequence":"first","affiliation":[{"name":"Hirosaki University , , 3 Bunkyo-cho , , ,","place":["Hirosaki, Aomori, Japan, 036-8561"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryu","family":"Ishibashi","sequence":"additional","affiliation":[{"name":"Nagaoka University of Technology , , 1603-1 Kamitomioka , , ,","place":["Nagaoka, Niigata, Japan, 940-2188"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7142-7552","authenticated-orcid":true,"given":"Minoru","family":"Umeda","sequence":"additional","affiliation":[{"name":"Nagaoka University of Technology , , 1603-1 Kamitomioka , , ,","place":["Nagaoka, Niigata, Japan, 940-2188"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2025,3,3]]},"reference":[{"key":"2026073105175745200_cit1","volume-title":"Carbon Reduction:\nPolicies, Strategies and Technologies","author":"Roosa","year":"2009"},{"key":"2026073105175745200_cit2","doi-asserted-by":"publisher","first-page":"12427","DOI":"10.1021\/acssuschemeng.1c06008","article-title":"Can CO2 and\nRenewable Carbon Be Primary Resources for Sustainable Fuels and Chemicals?","volume":"9","author":"Hasan","year":"2021","journal-title":"ACS Sustainable Chem. 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