Header

UZH-Logo

Maintenance Infos

Promoting photochemical water oxidation with metallic band structures


Liu, Hongfei; Moré, René; Grundmann, Henrik; Cui, Chunhua; Erni, Rolf; Patzke, Greta R (2016). Promoting photochemical water oxidation with metallic band structures. Journal of the American Chemical Society, 138(5):1527-1535.

Abstract

The development of economic water oxidation catalysts is a key step toward large-scale water splitting. However, their current exploration remains empirical to a large extent. Elucidating the correlations between electronic properties and catalytic activity is crucial for deriving general and straightforward catalyst design principles. Herein, strongly correlated electronic systems with abundant and easily tunable electronic properties, namely La1–xSrxBO3 perovskites and La2-xSrxBO4 layered perovskites (B = Fe, Co, Ni, or Mn), were employed as model systems to identify favorable electronic structures for water oxidation. We established a direct correlation between the enhancement of catalytic activity and the insulator to metal transition through tuning the electronic properties of the target perovskite families via the La3+/Sr2+ ratio. Their improved photochemical water oxidation performance was clearly linked to the increasingly metallic character. These electronic structure–activity relations provide a promising guideline for constructing efficient water oxidation catalysts.

Abstract

The development of economic water oxidation catalysts is a key step toward large-scale water splitting. However, their current exploration remains empirical to a large extent. Elucidating the correlations between electronic properties and catalytic activity is crucial for deriving general and straightforward catalyst design principles. Herein, strongly correlated electronic systems with abundant and easily tunable electronic properties, namely La1–xSrxBO3 perovskites and La2-xSrxBO4 layered perovskites (B = Fe, Co, Ni, or Mn), were employed as model systems to identify favorable electronic structures for water oxidation. We established a direct correlation between the enhancement of catalytic activity and the insulator to metal transition through tuning the electronic properties of the target perovskite families via the La3+/Sr2+ ratio. Their improved photochemical water oxidation performance was clearly linked to the increasingly metallic character. These electronic structure–activity relations provide a promising guideline for constructing efficient water oxidation catalysts.

Statistics

Citations

4 citations in Web of Science®
2 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

0 downloads since deposited on 30 Jan 2017
0 downloads since 12 months

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
08 University Research Priority Programs > Solar Light to Chemical Energy Conversion
Dewey Decimal Classification:540 Chemistry
Language:English
Date:2016
Deposited On:30 Jan 2017 10:59
Last Modified:31 May 2017 07:00
Publisher:American Chemical Society (ACS)
ISSN:0002-7863
Publisher DOI:https://doi.org/10.1021/jacs.5b10215
PubMed ID:26771537

Download

Preview Icon on Download
Content: Published Version
Filetype: PDF - Registered users only
Size: 3MB
View at publisher

TrendTerms

TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents.
You can navigate and zoom the map. Mouse-hovering a term displays its timeline, clicking it yields the associated documents.

Author Collaborations