Cobalt phthalocyanine derivatives supported on TiO2 by sol–gel processing Part 2. Activity in sulfide and ethanethiol oxidation

Stuchinskaya, Tatiana; Kundo, N. N.; Gogina, L; Schubert, Ulrich; Lorenz, Anne; Майзлиш, В. Е.

doi:10.1016/s1381-1169(98)00239-8

Cited by 24 publications

(8 citation statements)

References 7 publications

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“…Cobalt phthalocyanine complexes can also be anchored to titanium dioxide (Scheme ) . Cobalt(II) tetrasulfonylphthalocyanine and cobalt(II) tetra(chlorosulfonyl)phthalocyanine were co-condensed with titanium alkoxides upon sol−gel procedures to form 28a − c and 29a − d .…”

Section: E Cobalt Rhodium and Iridium Complexes1 Cobalt Complexesmentioning

confidence: 99%

Applications of Sol−Gel-Processed Interphase Catalysts

2002

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Section: E Cobalt Rhodium and Iridium Complexes1 Cobalt Complexesmentioning

confidence: 99%

Applications of Sol−Gel-Processed Interphase Catalysts

2002

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“…This was explained by site isolation of the supported catalyst and a change in the structure of the trimer. A method for the heterogenization of a catalyst on TiO 2 was developed by Schubert et al (89,90). The PcCo described in this work are active catalysts for the oxidation of sulphide and ethanethiol.…”

Section: Hybrid Organic -Inorganic Catalysts 345mentioning

confidence: 99%

Preparation and use of hybrid organic–inorganic catalysts

2002

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“…Phthalocyanine complexes are effective catalysts for a variety of reactions. − The chemical, electrochemical, photochemical, and radiolytic reductions of metallophthalocyanines strongly depend on the nature of the central metal atom. , For the Cu, Ni, and metal-free compounds, the data show that the reduction involves only the ligand . For the Co and Fe complexes, the first step of the reduction yields Co I and Fe I , respectively. − The reduction of Co II tetrasulfophthalocyanine, Co II (TSPc) 4- , to the Co I complex was recently shown to be the first step in the catalytic reaction between sodium dithionite and sodium nitrite .…”

Section: Introductionmentioning

confidence: 99%

Kinetics and Mechanism of the Iron Phthalocyanine Catalyzed Reduction of Nitrite by Dithionite and Sulfoxylate in Aqueous Solution

et al. 2005

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The reactions of sodium nitrite with sodium dithionite and sulfoxylate ion were studied in the presence of iron(III) tetrasulfophthalocyanine, Fe(III)(TSPc)3-, in aqueous alkaline solution. Kinetic parameters for the different reaction steps in the catalytic reduction by dithionite were determined. The final product of the reaction was found to be nitrous oxide. Contrary to this, the product of the catalytic reduction of nitrite by sulfoxylate was found to be ammonia. The striking difference in the reaction products is accounted for in terms of different structures of the intermediate complexes formed during the reduction by dithionite and sulfoxylate, in which nitrite is suggested to coordinate to the iron complex via nitrogen and oxygen, respectively. Sulfoxylate is shown to be a convenient reductant for the synthesis of the highly reduced iron phthalocyanine species Fe(I)(TSPc*)6- in aqueous solution. The kinetics of the reduction of Fe(I)(TSPc)5- to Fe(I)(TSPc*)6-, as well as the oxidation of the latter species by nitrite, was studied in detail.

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Cobalt phthalocyanine derivatives supported on TiO2 by sol–gel processing Part 2. Activity in sulfide and ethanethiol oxidation

Cited by 24 publications

References 7 publications

Applications of Sol−Gel-Processed Interphase Catalysts

Applications of Sol−Gel-Processed Interphase Catalysts

Preparation and use of hybrid organic–inorganic catalysts

Kinetics and Mechanism of the Iron Phthalocyanine Catalyzed Reduction of Nitrite by Dithionite and Sulfoxylate in Aqueous Solution

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