Journal
CHEMICAL COMMUNICATIONS
Volume 57, Issue 42, Pages 5183-5186Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1cc00903f
Keywords
-
Categories
Funding
- JSPS KAKENHI [JP18H01996, JP18K05150, JP18H05171, JP21H01952, JP21K 05100]
- Kyushu University Program for Leading Graduate Schools: 'Advanced Graduate Course on Molecular Systems for Devices'
Ask authors/readers for more resources
A Pt(ii)-based photo-hydrogen-evolving molecular device tethered to dimethyl-substituted viologens shows improved photocatalytic performance by utilizing multiple hydrogen evolution pathways taken by doubly and triply reduced species generated via consecutive photo-driven steps, despite being affected by Dexter-type energy transfer quenching. The results suggest new design strategies for finely tuned molecular devices controlling the photocatalytic HER.
A Pt(ii)-based photo-hydrogen-evolving molecular device tethered to dimethyl-substituted viologens (Pt(bpy)(dmMV(2+))(2)), providing higher driving force for hydrogen evolution reaction (HER) than the non-methylated analogue (Pt(bpy)(MV2+)(2)), is found to exhibit improved photocatalytic performance. The observed behaviors are explained by the multiple HER pathways taken by evolving H-2 by the doubly and triply reduced species generated via consecutive photo-driven steps. Although the activity is still killed by the Dexter-type energy transfer quenching, our results provide new design strategies towards the development of more finely tuned molecular devices controlling the photocatalytic HER.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available