Journal ArticleDOI
LIGHT‐DRIVEN REDOX PROCESSES IN FUNCTIONAL MICELLAR UNITS—III. Zn‐TETRAPHENYLPORPHYRIN SENSITIZED REACTIONS IN METHYL VIOLOGENE SURFACTANT ASSEMBLIES
Reads0
Chats0
TLDR
In this article, the photoreduction of methyl viologene by ZnTPP triplet excited states was studied in mixed micelles containing the functional surfactant JV-dodecyl, N-methyl viologenes (C12MV2+) as one and Cetyltrimethylammoniumchloride (CTAC) as the other component.Abstract:
— The photoreduction of methyl viologene by ZnTPP triplet excited states was studied in mixed micelles containing the functional surfactant JV-dodecyl, N-methyl viologene (C12MV2+) as one and Cetyltrimethylammoniumchloride (CTAC) as the other component. Using the laser photolysis technique the kinetics of the redox reaction were studied at various CTAC/C12MV2+ ratios. The average time for the electron transfer decreases linearly with the C12MV2+ occupancy. The back transfer from C12MV2+ to ZnTPP2+ can be intercepted if a donor such as NADH is cosolubilized in the micelle. In such a system irreversible methyl viologene reduction is achieved which in the presence of a suitable redox catalyst can be used to produce hydrogen from water.read more
Citations
More filters
Journal ArticleDOI
Metal phthalocyanines and porphyrins as photosensitizers for reduction of water to hydrogen
TL;DR: In this paper, it was shown that metalloporphyrins, especially ZnTMPyP(4+), can function as very efficient photosensitizers for the reduction of water to H(2) using either oxidation or reduction cycles.
Book ChapterDOI
Visible light-induced cleavage of water into hydrogen and oxygen in colloidal and microheterogeneous systems
TL;DR: In this article, a detailed analysis of methods to obtain highly active and selective catalysts, and the performance of bifunctional redox catalysts in cyclic water cleavage systems by visible light is described.
Journal ArticleDOI
Model reactions in photosynthesis
TL;DR: In this article, reaction center photochemistry is modeled as a set of reaction-center components, and reaction center components are modeled as reaction centers in reaction-centers photochemistry.
References
More filters
Journal ArticleDOI
Hydrogen Evolution from Water by Visible Light, a Homogeneous Three Component Test System for Redox Catalysis
TL;DR: The LPI-ARTICLE-1978-012 article as discussed by the authors was the first publication in the Web of Science Record created on 2006-02-21, modified on 2017-05-12.
Journal ArticleDOI
pi-Cation radicals and dications of metalloporphyrins.
TL;DR: It is concluded that the ground-state symmetries of ZnTPP+ and MgOEP+ are, respectively, 2AZu and 2A1u of the D4h point group, and a radical may occupy either of two close-lying ground states.
Journal ArticleDOI
Studies on Metastable States of Porphyrins. II. Spectra and Decay Kinetics of Tetraphenylporphine, Zinc Tetraphenylporphine and Bacteriochlorophyll1
Lauri Pekkarinen,Henry Linschitz +1 more
TL;DR: In this article, the flash technique used earlier to study the metastable states of chlorophyll was applied to tetraphenylporphine, zinc tetramerphine and bacteriochlorophyll in toluene and pyridine solution.
Journal ArticleDOI
Light-initiated electron transfer in functional surfactant assemblies. 1. Micelles with transition metal counterions
TL;DR: In this paper, the authors present a Web of Science Record created on 2006-02-21, modified on 2017-05-12.Reference LPI-ARTICLE-1979-011
Journal ArticleDOI
Modified Viologens with Improved Electrochemical Properties for Display Applications
TL;DR: In this article, the authors investigated the redox reaction of 1,1'−diheptyl−4,4'dipyridinium dibromide in water by means of linear potential sweep voltammetry.