Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 3

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

Search:
in the keywords:  TG
help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Content available remote

Removal of carbonaceous matters over alumina supported chromium and platinum chromium catalysts

100%
Sarbak Z., Surma K., Wieczorek K.
Polish Journal of Chemical Technology
|
2008
|
vol. 10
|
issue 1
57-59
EN
Platinum, both alone and with a low and high amount of chromium as an additive supported on alumina, was studied as a catalyst. These catalysts were examined in the removal of the carbonizate as a model material. It was found that the 2Cr/Al2O3 catalyst showed a significant increase in the catalytic activity as compared to 20Cr/Al2O3. An addition of platinum was found to cause a decrease of activity.
2
Publication available in full text mode
Content available

Catalysts preparation and investigation: laboratory exercise for students

88%
Zawadzki W.
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
|
2019
|
vol. 74
|
issue 1
EN
Catalysts preparation, investigation its basic properties, activity and selectivity measurements in carbon dioxide methanation reaction was proposed as laboratory course for international students doing a period of study at Maria Curie-Sklodowska University within the frame of the Erasmus mobility programme.
3
Content available remote

Physico-chemical properties of Chitosan films

75%
Balau L., Lisa G., Popa M., Tura V., Melnig V.
Open Chemistry
|
2004
|
vol. 2
|
issue 4
638-647
EN
Chitosan films obtained by dry phase inversion were prepared from an aqueous solution of chitosan in acetic acid. The films, of thickness less than 20 μm, were transparent, very flexible and had smooth surfaces. Increasing the film thickness induced an increase of the internal tensions and the consequent formation of a rough surface. Structural investigations by X-ray diffraction and Fourier transform IR analysis, showed that the chitosan films, as prepared, are amorphous. Further annealing to evaporate acetic acid and water traces, changed the amorphous phase into a more ordered phase, characterized by diffraction peaks at 2θ values of 9, 17, 20 and 23 degrees. Thermal investigations by TG, DTG, and DTA revealed that the decomposition of the chitosan films as prepared proceeds in two stages, starting from 180°C and 540°C.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.