Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Alfons M. Molenbroek"'
Publikováno v:
Topics in catalysis 52, 1303-1311 (2009). doi:10.1007/s11244-009-9314-1
The introduction of in situ techniques has had a vast impact on research and development in the area of heterogeneous catalysis as emphasized in many reviews and monographs. Recently, the number of in situ techniques that can give information at the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::789738654fed769e424427d214d1b1de
https://doi.org/10.1007/s11244-009-9314-1
https://doi.org/10.1007/s11244-009-9314-1
Publikováno v:
Synchrotron Radiation News. 22:12-16
Heterogeneous catalysts are complex and dynamic multicomponent systems, usually consisting of several elements and phases. The catalyst active sites are very sensitive to the environmental conditions (gas atmosphere, temperature, and pressure) and ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::988a2aab492fbec8cfe408bbb4063d05
https://doi.org/10.1080/08940880802667908
https://doi.org/10.1080/08940880802667908
Autor:
Andreas Stierle, Alfons M. Molenbroek
Publikováno v:
MRS Bulletin. 32:1001-1009
During the past few years, substantial effort has been devoted to developing new experimental techniques capable of delivering atomic-scale information on surfaces and nanoparticles under catalytic reaction conditions. Since the advent of surface sci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b0c444d12888c6dd3609d922eadac0f
https://doi.org/10.1557/mrs2007.208
https://doi.org/10.1557/mrs2007.208
Autor:
Bjerne S. Clausen, Frank Berg Rasmussen, Jens Sehested, Herman T. Teunissen, Alfons M. Molenbroek
Publikováno v:
Applied Catalysis A: General. 267:165-173
Sintering is an important deactivation mechanism of nickel-based catalysts used for the production of synthesis gas and hydrogen in the steam reforming process. In this work sintering of nickel catalysts supported by aluminum oxide is studied by a co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98b63b1525e6aa6aed03b33af76a29f7
https://doi.org/10.1016/j.apcata.2004.03.001
https://doi.org/10.1016/j.apcata.2004.03.001
Publikováno v:
Catalysis Letters. 92:29-34
The chemical state of arsenic deposited on a NiMoP/Al2O3 hydrotreating catalyst exposed to ppb levels of arsenic over several years in a refinery reactor has been studied by in situ EXAFS. In the as-received As-NiMoP catalyst, arsenic is exclusively
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecc591fb8516a69ef88512517a2de86a
https://doi.org/10.1023/b:catl.0000011082.20411.92
https://doi.org/10.1023/b:catl.0000011082.20411.92
Publikováno v:
The Journal of Physical Chemistry B. 105:5450-5458
We discuss the design of a Ni−Au nanoparticle catalyst system, which is based on the detailed experimental and theoretical understanding of the alloying and the chemical reaction processes on single-crystal surfaces. The alloy formation and structu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e00f50511576faed3ba02aaae214a6a9
https://doi.org/10.1021/jp0043975
https://doi.org/10.1021/jp0043975
Autor:
Lars P. Hansen, Christian Kisielowski, Henrik Topsøe, Michael Brorson, Alfons M. Molenbroek, Quentin M. Ramasse, Anna Carlsson, Stig Helveg
Publikováno v:
Angewandte Chemie International Edition. 49:2708-2710
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8407c41fa2147ce57dbfcca21512466
https://doi.org/10.1002/anie.200906752
https://doi.org/10.1002/anie.200906752
Publikováno v:
The Journal of Physical Chemistry B. 102:10680-10689
In this paper we show a new application of the atomic layer epitaxy technique to prepare binary alloy nanoparticle catalysts on various supports. The technique is used to prepare Cu/Pd bimetallic catalysts on SiO2 and on γ-Al2O3. The samples were ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea16b5e751d8abbea7888398fc731361
https://doi.org/10.1021/jp9822081
https://doi.org/10.1021/jp9822081
Autor:
Poul L. Hansen, Gert Steffensen, David Nicholson, Arild Moen, Alfons M. Molenbroek, Bjerne S. Clausen
Publikováno v:
Chemistry of Materials. 9:1241-1247
In situ XAFS spectroscopic studies have been carried out at 450 °C on the hydrogen reduction of a rhenium-promoted Co3O4/Al2O3 catalyst. The results show that reduction at this temperature yields a...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5202392b9aef2e0b99abeae85c19bd67
https://doi.org/10.1021/cm960619t
https://doi.org/10.1021/cm960619t
Publikováno v:
The Journal of Physical Chemistry B. 101:1861-1868
We present extended X-ray absorption fine structure (EXAFS) and transmission electron microscopy (TEM) measurements on three zeolite-supported bimetallic Pt−Pd catalysts prepared by wet impregnation. Alloy formation and segregation of Pd to the sur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::936da89a902b57072024ce653616cef3
https://doi.org/10.1021/jp962771o
https://doi.org/10.1021/jp962771o