Issue 24, 2017

A Ni-2,2′-bisdipyrrinato complex as a potential sensitizer: synthesis and photoelectrochemical characterization

Abstract

A novel Ni-based 2,2′-bisdipyrrinato complex bearing peripheral benzoic acid groups (Ni-bisdpmCOOH) has been synthesized and characterized. Electrochemical investigations revealed a high energy LUMO level that, combined with its absorption properties extending up to the NIR region, is compatible with its use as a sensitizer in thermodynamically uphill photocatalytic reactions, such as proton and carbon dioxide photoreduction. A sensitized photo-anode was prepared by adsorbing Ni-bisdpmCOOH onto a TiO2 film, which showed an incident photon to current efficiency, measured at 0.62 V vs. RHE, extending up to the visible light region. This demonstrates that electronically excited Ni-bisdpmCOOH is effectively able to inject electrons into the conduction band of TiO2, thus opening the way for effective TiO2 sensitization or MOF implementation of the molecule itself for energetic applications.

Graphical abstract: A Ni-2,2′-bisdipyrrinato complex as a potential sensitizer: synthesis and photoelectrochemical characterization

Supplementary files

Article information

Article type
Paper
Submitted
05 Sep 2017
Accepted
27 Oct 2017
First published
31 Oct 2017

New J. Chem., 2017,41, 15021-15026

A Ni-2,2′-bisdipyrrinato complex as a potential sensitizer: synthesis and photoelectrochemical characterization

A. Poma, I. Grigioni, M. V. Dozzi, S. A. Baudron, L. Carlucci, M. W. Hosseini and E. Selli, New J. Chem., 2017, 41, 15021 DOI: 10.1039/C7NJ03372A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements