Issue 1, 2013

Thermodynamic control of iron pyrite nanocrystal synthesis with high photoactivity and stability

Abstract

Non-toxic, earth abundant nanostructured semiconductors have received extensive attention recently. One of the more highly studied materials has been iron pyrite (FeS2) due to its many different promising applications. Herein, we report the thermodynamically-controlled synthesis of FeS2 nanocrystals, dependent on the reaction temperature and chemical precursors, and a Lewis acid/base model to explain the shape-controlled synthesis. The surface facet-controlled photocatalytic activity and photostability were studied and explained. This work further advances the synthesis with pyrite structure control and surface facet-dictated applications, such as photovoltaics, photocatalysts and photoelectrochemical cells.

Graphical abstract: Thermodynamic control of iron pyrite nanocrystal synthesis with high photoactivity and stability

Supplementary files

Article information

Article type
Communication
Submitted
29 sep. 2012
Accepted
16 oct. 2012
First published
17 oct. 2012

J. Mater. Chem. A, 2013,1, 49-54

Thermodynamic control of iron pyrite nanocrystal synthesis with high photoactivity and stability

A. Kirkeminde and S. Ren, J. Mater. Chem. A, 2013, 1, 49 DOI: 10.1039/C2TA00498D

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