| アイテムタイプ |
リポジトリ登録用アイテムタイプ（シンプル）(1) |
| 公開日 |
2025-12-01 |
| タイトル |
|
|
タイトル |
Marked CO2 Reduction to Generate C1–C3 Products Using Pt0.9Ru0.1/C-Based Membrane Electrode Assembly at Extremely Low Overpotentials |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
Matsuda, Shofu
Ishibashi, Ryu
Umeda, Minoru
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
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–Ru-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–Hinshelwood 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–C 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. |
|
言語 |
en |
| 書誌情報 |
en : ACS Omega
巻 10,
号 9,
p. 9630-9638,
発行日 2025-03
|
| ISSN |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
2470-1343 |
| DOI |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1021/acsomega.4c10885 |
| 権利情報 |
|
|
権利情報 |
© 2025 The Authors. Published by American Chemical Society. This publication is licensed under CC-BY 4.0 . |
|
言語 |
en |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 出版者 |
|
|
出版者 |
American Chemical Society |
|
言語 |
en |
ACS OMEGA 2025_10(9),9630-9638.pdf (3.4 MB)
.png)
