Selective and high-rate CO2 electroreduction by metal-doped covalent triazine frameworks
| Project/Area Number |
20H02568
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 28030:Nanomaterials-related
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| Research Institution | Osaka University |
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Principal Investigator |
Kamiya Kazuhide 大阪大学, 大学院基礎工学研究科, 准教授 (50716016)
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| Co-Investigator(Kenkyū-buntansha) |
岩瀬 和至 東北大学, 多元物質科学研究所, 助教 (90846437)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2022: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2021: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
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| Keywords | CO2電解 / 有機構造体 / 高速電解 / 第一原理計算 / CO2電解還元 / 単一原子電極触媒 / ガス拡散電極 / 単一原子触媒 / COF / 単原子触媒 / CO電解還元 / 電子移動触媒 |
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| Outline of Research at the Start |
二酸化炭素の炭化水素への電気化学還元反応は安価でクリーンなケミカルフィードストックの製法として大きな注目を集めており、その要素材料である高効率な電極触媒の開発が望まれている。しかし、従来の電極触媒のほとんどは生成物が2電子還元生成物である一酸化炭素のみであった。本研究では多孔性共役系高分子細孔内に複数の金属活性中心を担持することで、多段階反応によって、より高付加価値な炭化水素類の合成をめざす。
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| Outline of Final Research Achievements |
The electrochemical CO2 reduction reaction has attracted much attention. It is essential to achieve both high reaction rates and high selectivity simultaneously. Recently, there have been attempts to enhance the reaction rate through direct electrochemical reduction of gaseous CO2 using gas diffusion electrodes (GDEs). However, only a few materials, such as metallic copper, can function as efficient electrocatalysts at high rotational frequencies on GDEs. Developing new catalyst materials that can achieve both high selectivity and fast reaction rates is therefore an urgent issue. In this study, we discovered that an electrocatalyst consisting of a single metal center supported on covalent triazine frameworks could serve as a platform for selective electrocatalysts for gaseous CO2 reduction reactions.
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| Academic Significance and Societal Importance of the Research Achievements |
CO2電解の高速化、高選択化は本技術の社会実装に向けた必須要件である。金属活性中心のみを入れ替えるだけで生成物を変化させることができる本材料は、電極触媒としての基盤材料である。また、構造特定が容易であることから、原理解明に向けたモデル化合物しても好適であり、今後広く研究対象となることが期待される。
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Report
(4 results)
Research Products
(70 results)
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[Journal Article] Effect of cobalt speciation and the graphitization of the carbon matrix on the CO2 electroreduction activity of Co/N-doped carbon materials2021
Author(s)
Kazuyuki Iwase,* Kathrin Ebner, Justus Diercks, Viktoriia Saveleva, Secil Unsal, Frank Krumeich, Takashi Harada, Itaru Honma, Shuji Nakanishi, Kazuhide Kamiya,* Thomas Schmidt, Juan Herranz*
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Journal Title
ACS Appl. Mater. Interfaces
Volume: -
Issue: 13
Pages: 15122-15131
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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