Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Julia Wienold"'
Autor:
Stefan Seeger, Julia Wienold, Heinrich Kipphardt, Sebastian Recknagel, Harald Bresch, Heike Traub
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 66:432-438
Two types of copper samples, compact certified copper reference materials and calibration samples prepared from liquid doped, pressed copper powders, were studied in terms of accuracy of obtained calibration functions originating from infrared spark
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f3ae4f18acb5ab6bf642b44f56cd5b2
https://doi.org/10.1016/j.sab.2011.04.005
https://doi.org/10.1016/j.sab.2011.04.005
Publikováno v:
Waste Management. 31:530-535
The EU RoHS Directive (2002/95/EC of the European Parliament and of the Council) bans the placing of new electrical and electronic equipment containing more than agreed levels of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl (P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97f37f600fa4c62005565f16ba768a56
https://doi.org/10.1016/j.wasman.2010.10.002
https://doi.org/10.1016/j.wasman.2010.10.002
Autor:
Martin Kreyenschmidt, Matthias Michaelis, Christian Mans, Uwe Reinholz, Martin Radtke, Christoph Simons, Julia Wienold, Anton Janßen, Markus Ostermann, Dorothea Alber, Stephanie Hanning
Publikováno v:
J. Anal. At. Spectrom.. 25:40-43
In this study the microscopic homogeneity of the newly developed plastic reference materials BAM H001–BAM H010 was investigated. The materials consist of an acrylonitryle-butadien-styrene terpolymer, doped with different amounts of the elements Br,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f01eddfe4847e9acf0e9607d8285151
https://doi.org/10.1039/b917008a
https://doi.org/10.1039/b917008a
Publikováno v:
Journal of Catalysis
The bulk structural evolution of a vanadium-containing heteropolyoxomolybdate (HPOM), H 4 [PVMo 11 O 40 ] × 13H 2 O, with vanadium substituting for Mo in the Keggin ion, was studied under reducing (propene) and partial oxidation reaction conditions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b33bda63b83c80da7534f168e9cf469
https://doi.org/10.1016/j.jcat.2005.01.004
https://doi.org/10.1016/j.jcat.2005.01.004
Publikováno v:
Chemistry - A European Journal. 9:6007-6017
The structural evolution of Keggin-type heteropolyoxomolybdates (HPOM) during thermal treatment in propene and in propene and oxygen in the temperature range from 300 to 773 K was investigated by in situ X-ray diffraction(XRD) and in situ X-ray absor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f4c41163f53623ba4f4b0a2f0c40eb0
https://doi.org/10.1002/chem.200305227
https://doi.org/10.1002/chem.200305227
Autor:
Jörg Melsheimer, Friederike C. Jentoft, Sophia Klokishner, Jutta Kröhnert, Olaf Timpe, Thorsten Ressler, Julia Wienold, Robert Schlögl
Publikováno v:
Applied Catalysis A
The present study focuses on the evidence about the existence of Keggin ions under various reactive conditions. The stability of the hydrated parent heteropoly acid (HPA) phases is probed in water, by thermal methods in the gas phase, by in situ X-ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25523fedd2e85ed075dd0a503dfc9cf0
https://doi.org/10.1016/s0926-860x(03)00409-5
https://doi.org/10.1016/s0926-860x(03)00409-5
Autor:
Thorsten Ressler, Frank Girgsdies, Rolf E. Jentoft, Julia Wienold, Olaf Timpe, Thomas Neisius
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 200:165-170
Knowing the composition and the evolution of the bulk structure of a heterogeneous catalyst under working conditions (in situ) is a pre-requisite for understanding structure–activity relationships. X-ray absorption spectroscopy can be employed to s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc1419bd6eb4171c471a28d4d6731e39
https://doi.org/10.1016/s0168-583x(02)01714-7
https://doi.org/10.1016/s0168-583x(02)01714-7
Publikováno v:
European Journal of Inorganic Chemistry. 2003:301-312
The evolution of characteristic defects in the bulk structure of MoO3 under propene oxidation conditions was investigated by in situ X-ray absorption spectroscopy and X-ray diffraction. Under the reaction conditions employed (273 K to 773 K, and prop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9549bab0e793ee5640bd6c2c3e716538
https://doi.org/10.1002/ejic.200390040
https://doi.org/10.1002/ejic.200390040
Publikováno v:
Journal of Catalysis. 210:67-83
Reduction of MoO3 in propene and oxidation of MoO2 in oxygen are investigated by in situ X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS). Temperature-programmed and isothermal experiments (573–773 K) are performed to elucidate the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::373ec36fbd08ebf9b872b7fad4763928
https://doi.org/10.1006/jcat.2002.3659
https://doi.org/10.1006/jcat.2002.3659
Publikováno v:
Topics in Catalysis. 18:45-52
The potentials of X-ray absorption spectroscopy (XAS) (quantitative phase composition and average valence together with a short-range order structure analysis) combined with a time-resolution in the second range make time-resolved (TR-) XAS a powerfu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e31cb6d6e5e8ddebca3e0e0abfca7f4
https://doi.org/10.1023/a:1013878100041
https://doi.org/10.1023/a:1013878100041