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Akademický článek

A combined Kirkpatrick-Baez mirror and multilayer lens for sub-10 nm x-ray focusing

Autor: A. Ruhlandt, T. Liese, V. Radisch, S. P. Krüger, M. Osterhoff, K. Giewekemeyer, H. U. Krebs, T. Salditt

Publikováno v: AIP Advances, Vol 2, Iss 1, Pp 012175-012175-7 (2012)

We have used a combined optical system of a high gain elliptic Kirkpatrick-Baez mirror system (KB) and a multilayer Laue lens (MLL) positioned in the focal plane of the KB for hard x-rays nano-focusing. The two-step focusing scheme is based on a high

Externí odkaz: https://doaj.org/article/ba53363a70d943519275503a849cb5c1

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Relations between structure and catalytic activity of Ce–In-ZSM-5 catalysts for the selective reduction of NO by methane

Autor: T. Liese, H. Berndt, T. Sowade, X. Yu, Carmen Schmidt, Wolfgang Grünert, F.-W. Schütze

Publikováno v: Journal of Catalysis. 225:105-115

The promotion of In-ZSM-5 catalysts for the selective catalytic reduction of NO by methane by CeO2 has been investigated by a combination of physicochemical techniques (XPS, EXAFS, TPR, XRD, FTIR) and reaction studies, in particular under variation o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::17d3a3e2c41de9051b4ef67dae1a7842
https://doi.org/10.1016/j.jcat.2004.03.026

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Selective Catalytic Reduction of NO by Methane over CeO2–Zeolite Catalysts—Active Sites and Reaction Steps

Autor: T. Liese, Elke Löffler, Wolfgang Grünert

Publikováno v: Journal of Catalysis. 197:123-130

The selective catalytic reduction of NO with methane over catalysts consisting of CeO 2 and H-zeolites (physical mixtures or precipitates of the oxide onto the external surface of the zeolite) has been studied with the aim to establish the catalytic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b25f69cf530e64d942352417ff6fd6a0
https://doi.org/10.1006/jcat.2000.3074

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Activity, selectivity and durability of VO–ZSM-5 catalysts for the selective catalytic reduction of NO by ammonia

Autor: Wolfgang Grünert, T Liese, G Piehl

Publikováno v: Catalysis Today. 54:401-406

ZSM-5 zeolite was loaded with vanadyl ions (VO 2+ ) by treatment of Na–ZSM-5 with aqueous VOSO 4 solution at pH 1.5–2. The catalytic material was tested for the selective catalytic reduction of NO with ammonia at temperatures between 473 and 823

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::79025c31aaff2978bd253d33e9d8c18c
https://doi.org/10.1016/s0920-5861(99)00203-5

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Selective Catalytic Reduction of NO by NH3over Vanadium-Containing Zeolites

Autor: Wolfgang Grünert, Michael Wark, T. Liese, A. Brückner

Publikováno v: Journal of Catalysis. 175:48-61

Vanadium was introduced into zeolites, predominantly of ZSM-5 type, by isomorphous substitution (vanadium silicalites), by ion exchange with vanadyl sulphate solution (VO zeolites), and by chemical vapor deposition of VOCl3with subsequent hydrolysis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e6501090522901218e1e23b2b08df48
https://doi.org/10.1006/jcat.1998.1974

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Cu–Na–ZSM-5 Catalysts Prepared by Chemical Transport: Investigations on the Role of Brønsted Acidity and of Excess Copper in the Selective Catalytic Reduction of NO by Propene

Autor: T. Liese, Wolfgang Grünert

Publikováno v: Journal of Catalysis. 172:34-45

Cu–Na–ZSM-5 catalysts were prepared by a dry technique from physical mixtures of Na–ZSM-5 with copper compounds (CuCl, Cu(NO3)2or Cu(CH3COO)2) in order to obtain intrazeolite copper species coexisting with the full amount of Na+ions of the pare

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0bb7bc3d7c855f8f5d9bbbc9358e5f93
https://doi.org/10.1006/jcat.1997.1812

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Akademický článek

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Preparation of Cu-Na-ZSM-5 catalysts by thermal spreading techniques

Autor: C. Schobel, Wolfgang Grünert, T. Liese

Publisher Summary In the preparation of redox catalysts from zeolites, transition-metal ions are often introduced by aqueous exchange or by solid-state ion exchange into H or ammonia forms. Recent publications about non-stoichiometric thermal spreadi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44a9236460a0b6d2667e1452fc6601ee
https://doi.org/10.1016/s0167-2991(97)80794-x

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Akademický článek

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Akademický článek

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