Zobrazeno 1 - 10
of 17
pro vyhledávání: '"K. Siepen"'
Publikováno v:
Applied Organometallic Chemistry. 14:549-556
Bimetallic Pt/Rh heterogeneous catalysts based on nanoscaled colloids supported on activated charcoal have been shown to exhibit maximum activity in hydrogenation of butyronitrile at a composition of 10 atom% Pt and 90 atom% Rh in the metallic core.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cb16d6cbf2be13ef3da24f35b839338
https://doi.org/10.1002/1099-0739(200010)14:10<549::aid-aoc37>3.0.co
https://doi.org/10.1002/1099-0739(200010)14:10<549::aid-aoc37>3.0.co
Publikováno v:
Journal of the American Chemical Society. 120:6019-6023
The reduction of [N(octyl)4]2[CuCl2Br2] in organic solution (toluene) using Li[BEt3H] leads to colloidal Cu protected by cationic surfactants (NR4+). According to HRTEM (high-resolution transmission electron microscopy) and UV/vis data, the organosol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6359cb11a2be7203fe271bbdd303593a
https://doi.org/10.1021/ja972748w
https://doi.org/10.1021/ja972748w
Publikováno v:
Applied Organometallic Chemistry. 11:783-796
The performance of heterogeneous catalysts based on surfactant-stabilized palladium colloids is compared with conventional Pd/C and Lindlar catalysts in the partial hydrogenation of 3-hexyn-1-ol under optimized reaction conditions. The selectivity ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2e7d7cebd95f6ee52547a4245e2b457
https://doi.org/10.1002/(sici)1099-0739(199710/11)11:10/11<783::aid-aoc630>3.0.co
https://doi.org/10.1002/(sici)1099-0739(199710/11)11:10/11<783::aid-aoc630>3.0.co
Publikováno v:
Topics In Catalysis. 4:217-227
Preprepared nanometals stabilized by surfactants may be used as precursors for a new type of heterogeneous catalyst. Independent of the support these mono– or plurimetallic precursors may be optimized dependent on the size, composition, and structu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bb8e03611b44560f03191d90b756e34
https://doi.org/10.1023/a:1019152625358
https://doi.org/10.1023/a:1019152625358
Autor:
Rainer Brinkmann, A. Schulze Tilling, Helmut Bönnemann, K. Siepen, Klaus Seevogel, Werner Brijoux, G. Braun
Publikováno v:
Journal of Organometallic Chemistry. 520:143-162
Solvent-stabilized organosols of the early transition metal series, e.g. Ti, Zr, Nb, and Mn, may be prepared by the reduction of the THF adducts or thioether solutions of the corresponding metal halides with K[BEt3H]. Mono- and bimetallic organosols
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e98550d5cead79c519ed28fb32fed397
https://doi.org/10.1016/0022-328x(96)06273-0
https://doi.org/10.1016/0022-328x(96)06273-0
Publikováno v:
ChemInform. 29
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82c10201a40d39fe3a1970ae6d7e9e76
https://doi.org/10.1002/chin.199836043
https://doi.org/10.1002/chin.199836043
Publikováno v:
Journal de Physique IV Proceedings
Journal de Physique IV Proceedings, EDP Sciences, 1997, 7 (C2), pp.C2-959-C2-960. ⟨10.1051/jp4:19972101⟩
Journal de Physique IV Proceedings, EDP Sciences, 1997, 7 (C2), pp.C2-959-C2-960. ⟨10.1051/jp4:19972101⟩
Innovative transition metal catalysts prepared on the basis of preformed colloidal nano-particles and stabilized by surfactants are of special interest with regard to industrial applications. The physical characterization of the metal colloid precurs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f29724a3c8b899e6a2008e1e305b46ff
https://hal.archives-ouvertes.fr/jpa-00255158
https://hal.archives-ouvertes.fr/jpa-00255158
Autor:
J. Pollmann, J. Rothe, J. Richter, K. Siepen, Josef Hormes, Werner Brijoux, R. Franke, Helmut Bönnemann
Publikováno v:
Analytical and bioanalytical chemistry. 355(3-4)
Transition metal colloids are potential precursors of heterogeneous catalysts with application to selective chemical reactions. Sample preparation techniques are described. Experimental details are given of the characterization of these often air-sen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33305128e8133f96d3df4ceb14e7d2d9
https://pubmed.ncbi.nlm.nih.gov/15045417
https://pubmed.ncbi.nlm.nih.gov/15045417
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