Issue 1, 2014
From the journal:

Nanoscale

Photocatalysts with internal electric fields

Li Li,a   Paul A. Salvadora  and  Gregory S. Rohrer*a  

* Corresponding authors

a Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
E-mail: gr20@andrew.cmu.edu
Fax: +1 412 268 7596
Tel: +1 412 268 2696

Abstract

The photocatalytic activity of materials for water splitting is limited by the recombination of photogenerated electron–hole pairs as well as the back-reaction of intermediate species. This review concentrates on the use of electric fields within catalyst particles to mitigate the effects of recombination and back-reaction and to increase photochemical reactivity. Internal electric fields in photocatalysts can arise from ferroelectric phenomena, p–n junctions, polar surface terminations, and polymorph junctions. The manipulation of internal fields through the creation of charged interfaces in hierarchically structured materials is a promising strategy for the design of improved photocatalysts.

Graphical abstract: Photocatalysts with internal electric fields

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Article information

DOI
https://doi.org/10.1039/C3NR03998F
Article type
Review Article
Submitted
01 Aug 2013
Accepted
19 Sep 2013
First published
23 Sep 2013
This article is Open Access
Creative Commons BY-NC license

Nanoscale, 2014,6, 24-42

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Photocatalysts with internal electric fields

L. Li, P. A. Salvador and G. S. Rohrer, Nanoscale, 2014, 6, 24 DOI: 10.1039/C3NR03998F

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