The limiting role of iodide oxidation in cis-Os(dcb)2(CN)2/TiO2 photoelectrochemical cells
Article Abstract:
Regenerative photoelectrochemical cells cis-Ru(dcb)2(CN)2 that are anchored to nanocrystalline TiO2 are able to convert photons to electrons quantitatively. This characteristic is not possessed by the analogous Os(II) sensitizer. Time-resolved absorbance and reflectance measurements show that the lower photocurrent efficiency is due to the sluggish iodide oxidation rate of the cis-OsIII(dcb)2(CN)2+TiO2. Therefore, iodide oxidation is the rate-limiting step in the sensitization of nanocrystalline TiO2.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Ion-selective membranes involved in pattern-forming processes
Article Abstract:
The ability of simple inorganic reactions such as NaOH+CuCl2, NaOH+AgNO3 and CuCl2+K3[Fe-(CN)6] to form various complex precipitation patterns is presented. The results suggested that one of these surfaces is permeable, while the other one is an ion-selective membrane that restrains the diffusion of the first reagent's reacting ion, preventing the reactions from proceeding ahead of the membrane.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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Simultaneous oscillations of surface stress and potential in the course of galvanostatic oxidation of formic acid
Article Abstract:
Experiment results on the periodic changes of the deformation of a platinum electrode in the case of galvanostatic oscillation of formic acid in perchloric acid are presented. The bending beam method offers a powerful way to gain a better understanding of electrochemical oscillation phenomena.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
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