期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 3, 期 15, 页码 1980-1984出版社
AMER CHEMICAL SOC
DOI: 10.1021/jz3006755
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资金
- UK EPSRC [EP/H040218/1]
- EU [265769]
- Alan Howard scholarships for Energy Futures
- EPSRC [EP/H040218/2] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H040218/2] Funding Source: researchfish
Electron transfer from TiO2 to iodine/iodide electrolytes proceeds via reduction of either I-3(-) or uncomplexed I-2 (free iodine), but which route predominates has not previously been determined. By measurement of the electron lifetime while independently varying free iodine or I-3(-) concentrations, we find the lifetime is correlated with free-iodine concentration and independent of I-3(-) concentration. This trend supports the hypothesis that electron recombination to the electrolyte occurs predominantly by iodine reduction rather than reduction of triiodide.
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