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Professor Geoffrey Ozin receives a 2015 Royal Society of Chemistry Centenary Prize
Professor Geoffrey Ozin has been awarded one of the 2015 Royal Society of Chemistry Centenary Prizes. The Centenary Prizes are awarded to outstanding chemists, who are also exceptional communicators, from overseas to give lectures in the British Isles.
Frank Wania and Carl Mitchell’s collaborative project is one of twelve at U of T now funded by NSERC's Strategic Project Grants Program
NSERC recently announced that a project developed by Professor Frank Wania and Environmental Science Professor Carl Mitchell is one of twelve U of T projects awarded funding from its Strategic Grants Program. The program awarded $5.3 million to early-stage projects at the University of Toronto that might otherwise go unfunded due to their high-risk nature. Wania and Mitchell's project addresses the high-cost of the current technique for measuring atmospheric mercury, which limits analysis to scattered sites in wealthy countries. Because the prototype tool they’ve developed makes measuring atmospheric mercury simple and inexpensive, it could lead to more widespread testing and source identification of mercury contamination, most importantly in countries where the current technique is not affordable. U of T News has published an article on the NSERC program that features Wania and Mitchell's project.
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Chemical Physics Theory Group
Activation of Ultrathin Films of
Hematite for Photoelectrochemical
Water Splitting via H2 Treatment
The Inside Back cover picture shows ultrathin films of α-Fe2O3 before and after treatment in 5% H2 in Ar at 450°C. The hydrogen treatment creates oxygen vacancies in the iron oxide lattice, resulting in a non-stoichiometric hematite phase that is active for photoelectrochemical water oxidation. Electrochemical impedance spectroscopy reveals the buildup of a surface state capacitance that is only present for the hydrogen treated films when under illumination, at the point of photocurrent onset. A concomitant decrease in charge trapping resistance suggests that this is due to a build-up of photogenerated holes at the surface of the H
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