Zobrazeno 1 - 10
of 58
pro vyhledávání: '"J Wrzyszcz"'
Publikováno v:
Journal of Alloys and Compounds. :279-282
Preparation and morphology of nanocrystalline and nanoporous ceramics composed of a network of alumina and zinc aluminate doped with Tb ions are reported. The pore size distributions are determined by nitrogen adsorption at 77 K. The emission spectra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2aa9fd4e63bade87e3beb5542d8b8d86
https://doi.org/10.1016/s0925-8388(01)01031-3
https://doi.org/10.1016/s0925-8388(01)01031-3
Autor:
J Wrzyszcz, Mirosław Zawadzki
Publikováno v:
Materials Research Bulletin. 35:109-114
Hydrothermal treatment at low temperatures is proposed for obtaining a nanocrystalline zinc aluminate spinel of interesting properties from catalytic point of view, including high specific surface area (up to 340 m2/g), nanoporosity, and narrow pore
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a07935fd0bb9235052d96c37181af9b0
https://doi.org/10.1016/s0025-5408(00)00185-9
https://doi.org/10.1016/s0025-5408(00)00185-9
Publikováno v:
ChemInform. 31
The preparation of nanostructured ZnAl2O4 spinel powders doped with Eu3+ ions obtained by a hydrothermal method is described. XRD analyses demonstrated that the powders were single-phase spinel nanopowders with high crystallite dispersion. The averag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfc3e39df0b9fa017992e1c57995535a
https://doi.org/10.1002/chin.200028015
https://doi.org/10.1002/chin.200028015
Publikováno v:
Journal of Alloys and Compounds. :456-458
The preparation of nanostructured ZnAl2O4 spinel powders doped with Eu3+ ions obtained by a hydrothermal method is described. XRD analyses demonstrated that the powders were single-phase spinel nanopowders with high crystallite dispersion. The averag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db36ee3e7fb9c8523ac66a25f26c8708
https://doi.org/10.1016/s0925-8388(99)00696-9
https://doi.org/10.1016/s0925-8388(99)00696-9
Publikováno v:
Journal of Catalysis. 13:75-82
The influence of the degree of organization of the catalyst has been examined for the oxidation of butene into butadiene on bismuth molybdate. The results obtained show that the specific activity increases when the degree of crystallization decreases
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cab557b09903213c1a1bcf6fbffaa679
https://doi.org/10.1016/0021-9517(69)90372-8
https://doi.org/10.1016/0021-9517(69)90372-8
Autor:
J. Wrzyszcz, S. Janiak
Summary Catalyst carriers with various porous structures consisting of barium-stabilized γ-Al2O3 have been developed. Phase composition analysis and specific surface area measurements for samples calcined at 480-1240°C proved that the carriers have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1aabc9e622186cdb28f2d1ebbb9f609a
https://doi.org/10.1016/s0167-2991(08)63987-7
https://doi.org/10.1016/s0167-2991(08)63987-7
Autor:
B Nissen, Przemysław J. Dereń, P Pershukievich, W. Strȩk, E. Łukowiak, J Wrzyszcz, Mirosław Zawadzki
Publikováno v:
Scopus-Elsevier
The preparation of fibrous and spheroidal nanonstructured composites of γ -alumina matrices impregnated with Eu 2 O 3 together with their physico-chemical morphology are described. The emission properties of Eu 3+ ion were investigated in both nanoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd21c025b13c7f4a2d4c648281363662
http://www.scopus.com/inward/record.url?eid=2-s2.0-0346310843&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0346310843&partnerID=MN8TOARS
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