Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Roman Klimkiewicz"'
Autor:
Katarzyna Winiarska, Roman Klimkiewicz, Włodzimierz Tylus, Agnieszka Sobianowska-Turek, Juliusz Winiarski, Bogdan Szczygieł, Irena Szczygieł
Publikováno v:
Journal of Chemistry, Vol 2019 (2019)
The catalytic activity of the Mn-Zn ferrites obtained by chemical methods from a solution after acid leaching of waste Zn-C and Zn-Mn batteries was studied. Precursors of metal ions (Fe, Mn, and Zn) were obtained using different precipitating agents
Externí odkaz:
https://doaj.org/article/87c8cbaee0dd443fbbd0398d746f3771
Autor:
Juliusz Winiarski, Bogdan Szczygieł, Włodzimierz Tylus, Agnieszka Sobianowska-Turek, Irena Szczygieł, Katarzyna Winiarska, Roman Klimkiewicz
Publikováno v:
Journal of Chemistry, Vol 2019 (2019)
The catalytic activity of the Mn-Zn ferrites obtained by chemical methods from a solution after acid leaching of waste Zn-C and Zn-Mn batteries was studied. Precursors of metal ions (Fe, Mn, and Zn) were obtained using different precipitating agents
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::394923b0a3fb159d5099b4e78d7a7b28
https://doi.org/10.1155/2019/5430904
https://doi.org/10.1155/2019/5430904
Autor:
Roman Klimkiewicz, Andrii Nikolenko, W. Mista, Evgeniya Kovalska, Piotr Kraszkiewicz, Vitaliy Boiko, Viktor Strelchuk, Volodymyr Karbivskii, Galina I. Dovbeshko, Olena Gnatyuk
Publikováno v:
Journal of Raman Spectroscopy. 50:490-498
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8332c0cb2f475615aa16c88d64ecd06
https://doi.org/10.1002/jrs.5542
https://doi.org/10.1002/jrs.5542
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 122:1063-1080
CeO2/MWCNTs, Ag/MWCNTs and Ag–CeO2/MWCNTs hybrid composite nanomaterials with 5 wt% active component contents applied as catalysts of dehydrogenation and consecutive bimolecular condensation of a primary alcohol, butan-1-ol, revealed diversified pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::174b1403e64ea351e00caa16368f528d
https://doi.org/10.1007/s11144-017-1254-3
https://doi.org/10.1007/s11144-017-1254-3
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 120:261-278
A noticeable improvement in the structural properties of Mn–Zn ferrite obtained by the solution combustion method was observed when the gel was additionally dried before self-combustion. The catalytic activity of thus prepared nanosized Mn–Zn fer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0e986ade9aa758349b34e56e897f993
https://doi.org/10.1007/s11144-016-1095-5
https://doi.org/10.1007/s11144-016-1095-5
Publikováno v:
Applied Catalysis A: General. 514:135-145
The article presents the results of catalytic and surface properties of pure zinc oxide synthesized by hydrothermal method and surface-doped with gold nanoparticles. As a test reaction, the catalytic transformation of n -butyl alcohol towards the deh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd996c2c29714f05251f12e631b02288
https://doi.org/10.1016/j.apcata.2016.01.020
https://doi.org/10.1016/j.apcata.2016.01.020
Publikováno v:
Materials Science and Engineering: B. 198:35-42
A novel method of wood impregnation with titanium ions is presented. Titanium(IV) ions were complexed to peroxo/hydroxo complexes which were obtained by treating a TiCl4 water solution with H2O2. The solution of chelated titanium ions was used for th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df0e7196c846a262fa5062c99f150bd2
https://doi.org/10.1016/j.mseb.2015.03.016
https://doi.org/10.1016/j.mseb.2015.03.016
Autor:
Jerzy P. Lukaszewicz, Anna Kucinska, Aleksandra Cyganiuk, Ali Bumajdad, Jerzy Włoch, Roman Klimkiewicz
Publikováno v:
Materials Letters. 118:119-122
Hybrid cerium oxide/active carbon catalysts were manufactured by the means of a biotechnological approach. Cerium ion-saturated stems of Salix viminalis were carbonised at 600–800 °C. A microporous carbon matrix was created from the organic matter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79fe4b38d32af340cff76c4124dfa571
https://doi.org/10.1016/j.matlet.2013.12.056
https://doi.org/10.1016/j.matlet.2013.12.056
Autor:
Jerzy P. Łukaszewicz, Aleksandra Cyganiuk, Roman Klimkiewicz, Andrzej Olejniczak, Anna Kucinska
Publikováno v:
Journal of Materials, Vol 2013 (2013)
Selective utilisation of unique properties of Salix viminalis wood enables preparation of materials of nanotechnologic properties. Thermal decomposition of lignin-cellulose organic matter results in the formation of a nanostructured porous carbon mat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff4923dd88ec812e4820874c55496801
https://doi.org/10.1155/2013/206952
https://doi.org/10.1155/2013/206952
Publikováno v:
Industrial & Engineering Chemistry Research. 51:2205-2213
A catalytic phenol methylation study on two ferrospinel materials (Mg0.63Zn0.37)(Mn0.1Fe1.8)O3.85 (hereafter Mg–Zn) and (Mn0.55Zn0.35Fe0.1)Fe2O4 (hereafter Mn–Zn) was performed. The reaction was carried out in the gas phase in a continuous manner
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f94d495a56209f1cc012adc3fba8a642
https://doi.org/10.1021/ie201063e
https://doi.org/10.1021/ie201063e