TY  - CONF
AU  - Nikolova, Dimitrinka
AU  - Stanković, Miroslav
AU  - Simić, Sanja

AU  - Gabrovska, Margarita
AU  - Stefanov, Plamen
AU  - Edreva-Kardjieva, Rumeana
PY  - 2008
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6323
AB  - Two series of (Ag)NiMg/SiO2 catalysts are synthesized on SiO2 support derived
from two silica sources: diatomite activated at 800oC (Series a; Mg/Ni=0.1 and
SiO2/Ni=1.07) and synthetic water glass (Series b; Mg/Ni=0.1 and SiO2/Ni=1.15).
The modification with silver is made at three molar Ag/Ni ratios, namely 0.0025,
0.025 and 0.1.
The effect of the source of SiO2 support as well as of the Ag presence and
content on the nickel oxidation state in the co-precipitated (Ag)NiMg/SiO2
catalysts after reduction-passivation procedure are studied by XPS.
The peak-fitting of the composite Ni2p level confirms that nickel on the
surface is presented in Ni0 and Ni2+ oxidation states. The higher content of Ni0 on
the surface of the diatomite supported catalysts shows that the metallic nickel is
more stable to oxidation in comparison of the water glass supported ones.
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 9th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2008, September 24-26, 2008,  Belgrade, Serbia
T1  - XPS study of the nickel oxidation state in the reduced (Ag)NiMg/SiO2 vegetable oil hydrogenation catalysts
VL  - I
SP  - 175
EP  - 177
UR  - https://hdl.handle.net/21.15107/rcub_cer_6323
ER  - 

@conference{
author = "Nikolova, Dimitrinka and Stanković, Miroslav and Simić, Sanja
 and Gabrovska, Margarita and Stefanov, Plamen and Edreva-Kardjieva, Rumeana",
year = "2008",
abstract = "Two series of (Ag)NiMg/SiO2 catalysts are synthesized on SiO2 support derived
from two silica sources: diatomite activated at 800oC (Series a; Mg/Ni=0.1 and
SiO2/Ni=1.07) and synthetic water glass (Series b; Mg/Ni=0.1 and SiO2/Ni=1.15).
The modification with silver is made at three molar Ag/Ni ratios, namely 0.0025,
0.025 and 0.1.
The effect of the source of SiO2 support as well as of the Ag presence and
content on the nickel oxidation state in the co-precipitated (Ag)NiMg/SiO2
catalysts after reduction-passivation procedure are studied by XPS.
The peak-fitting of the composite Ni2p level confirms that nickel on the
surface is presented in Ni0 and Ni2+ oxidation states. The higher content of Ni0 on
the surface of the diatomite supported catalysts shows that the metallic nickel is
more stable to oxidation in comparison of the water glass supported ones.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 9th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2008, September 24-26, 2008,  Belgrade, Serbia",
title = "XPS study of the nickel oxidation state in the reduced (Ag)NiMg/SiO2 vegetable oil hydrogenation catalysts",
volume = "I",
pages = "175-177",
url = "https://hdl.handle.net/21.15107/rcub_cer_6323"
}

Nikolova, D., Stanković, M., Simić, S., Gabrovska, M., Stefanov, P.,& Edreva-Kardjieva, R.. (2008). XPS study of the nickel oxidation state in the reduced (Ag)NiMg/SiO2 vegetable oil hydrogenation catalysts. in Proceedings - 9th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2008, September 24-26, 2008,  Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 175-177.
https://hdl.handle.net/21.15107/rcub_cer_6323

Nikolova D, Stanković M, Simić S, Gabrovska M, Stefanov P, Edreva-Kardjieva R. XPS study of the nickel oxidation state in the reduced (Ag)NiMg/SiO2 vegetable oil hydrogenation catalysts. in Proceedings - 9th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2008, September 24-26, 2008,  Belgrade, Serbia. 2008;I:175-177.
https://hdl.handle.net/21.15107/rcub_cer_6323 .

Nikolova, Dimitrinka, Stanković, Miroslav, Simić, Sanja
, Gabrovska, Margarita, Stefanov, Plamen, Edreva-Kardjieva, Rumeana, "XPS study of the nickel oxidation state in the reduced (Ag)NiMg/SiO2 vegetable oil hydrogenation catalysts" in Proceedings - 9th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2008, September 24-26, 2008,  Belgrade, Serbia, I (2008):175-177,
https://hdl.handle.net/21.15107/rcub_cer_6323 .