Electrochemical on-surface synthesis of a strong electron-donating graphene nanoribbon catalyst

Hiroshi Sakaguchi (), Takahiro Kojima, Yingbo Cheng, Shunpei Nobusue and Kazuhiro Fukami
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Hiroshi Sakaguchi: Kyoto University
Takahiro Kojima: Kyoto University
Yingbo Cheng: Kyoto University
Shunpei Nobusue: Kyoto University
Kazuhiro Fukami: Kyoto University

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract On-surface synthesis of edge-functionalized graphene nanoribbons (GNRs) has attracted much attention. However, producing such GNRs on a large scale through on-surface synthesis under ultra-high vacuum on thermally activated metal surfaces has been challenging. This is mainly due to the decomposition of functional groups at temperatures of 300 to 500 °C and limited monolayer GNR growth based on the metal catalysis. To overcome these obstacles, we developed an on-surface electrochemical technique that utilizes redox reactions of asymmetric precursors at an electric double layer where a strong electric field is confined to the liquid-solid interface. We successfully demonstrate layer-by-layer growth of strong electron-donating GNRs on electrodes at temperatures

Date: 2024
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DOI: 10.1038/s41467-024-50086-6

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