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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH FRONT (Open Access)

Preparation and Characterization of Catalysts for Clean Energy: A Challenge for X-rays and Electrons

Rosalie K. Hocking A B D , Shery L. Y. Chang A C , Douglas R. MacFarlane A B and Leone Spiccia A B
+ Author Affiliations
- Author Affiliations

A School of Chemistry, Monash University, Clayton, Vic. 3800, Australia.

B Australian Centre for Electromaterials Science, ACES.

C Monash Centre for Electron Microscopy, Monash University, Clayton, Vic. 3800, Australia.

D Corresponding author. Email: rosalie.hocking@monash.edu




Rosalie Hocking is currently a research fellow working for the Australian Centre for Electromaterials Science. Her research focuses on understanding the mechanistic chemistry of metal oxides and sulfides as chemical catalysis for hydrogen generation.



Shery (Lan Yun) Chang is currently a research fellow jointly appointed by the Monash Centre Electron Microscopy and the School of Chemistry at Monash University. Her research focuses on the development and application of advanced transmission electron microscopy techniques to the structure–property relationships of nanocatalysts at an atomic level.



Douglas MacFarlane is an ARC Federation Fellow at Monash University. He is also the program leader of the Energy Program in the ARC funded Australian Centre for Electromaterials Science. His research interests include the development of ionic liquids for use in catalysis and energy storage.



Leone Spiccia is currently Professor of Chemistry at Monash University. His research interests include the development of photoactive and redox active metal complexes for incorporation into dye sensitized solar cells and bio-inspired catalysts for use in water splitting devices made from earth abundant elements.

Australian Journal of Chemistry 65(6) 608-614 https://doi.org/10.1071/CH12016
Submitted: 16 January 2012  Accepted: 6 March 2012   Published: 18 May 2012

Abstract

One of the most promising approaches to addressing the challenges of securing cheap and renewable energy sources is to design catalysts from earth abundant materials capable of promoting key chemical reactions including splitting water into hydrogen and oxygen (2H2O → 2H2 + O2) as well as both the oxidation (H2 → 2H+) and reduction (2H+ → H2) of hydrogen. Key to elucidating the origin of catalytic activity and improving catalyst design is determining molecular-level structure, in both the ‘resting state’ and in the functioning ‘active state’ of the catalysts. Herein, we explore some of the analytical challenges important for designing and studying new catalytic materials for making and using hydrogen. We discuss a case study that used the combined approach of X-ray absorption spectroscopy and transmission electron microscopy to understand the fate of the molecular cluster, [Mn4O4L6]+, in Nafion.


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