NDLI: Effect of the support and the reduction temperature on the formation of metallic nickel phase in Ni/silica gel precursors of vegetable oil hydrogenation catalysts

Please wait, while we are loading the content...

Kinetics and mechanism of structural transformations of 2-(5-ethoxycarbonylmethyl-4-oxothiazolidin-2-ylidene)-N-(2-phenylethyl)-ethanamide during heating

The influence of the molar ratio [H$_{2}$O]/[Ti(OR)$_{4}$] on the kinetics of the titanium-oxo-alkoxy clusters nucleation

Enhanced activity in ethanol oxidation of Pt$_{3}$Sn electrocatalysts synthesized by microwave irradiation

Study of dynamics of glucose-glucose oxidase-ferricyanide reaction

Dynamic behavior of the bray-liebhafsky oscillatory reaction controlled by sulfuric acid and temperature

Study of the kinetic parameters for synthesis and hydrolysis of pharmacologically active salicin isomer catalyzed by baker’s yeast maltase

Dynamics of the reaction glucose-catalase-glucose oxidase-hydrogen peroxide

The stability of the extended model of hypothalamic-pituitary-adrenal axis examined by stoichiometric network analysis

Catalyst deactivation kinetics: An apparent delay in decreasing of catalyst activity, “inflection point” and data interpretation

Improvement of the cycle life of composite xerogel V$_{2}$O$_{5}$/C in aqueous LiNO$_{3}$ solution by addition of vinylene carbonate

Solubility in the ternary system CaSO$_{4}$ + Na$_{2}$SO$_{4}$ + H$_{2}$O at 298.15 K

The study of phase transition in some irradiated cholesteric liquid crystalline mixtures

Electrochemical synthesis and properties of ceria films grown on stainless steel

The electronic transition moment function of the E $^{1}$Π$_{ u }$-X $^{1}$Σ g + system of Ag$_{2}$

DFT study on singlet diradical character of zethrenes

Systematic DFT-GGA study of hydrogen adsorption on transition metals

Surface properties of the Ni-silica gel catalyst precursors for the vegetable oil hydrogenation process: N$_{2}$ sorption and XPS studies

Porous glycidyl methacrylate-bentonite composite

Effect of the support and the reduction temperature on the formation of metallic nickel phase in Ni/silica gel precursors of vegetable oil hydrogenation catalysts

Tungsten electrochemistry in alkaline solutions—Anodic dissolution and oxygen reduction reaction

Hydrogen peroxide sensing at MnO$_{2}$/carbonized nanostructured polyaniline electrode

The influence of nano silica particles on gamma-irradiation ageing of elastomers based on chlorosulphonated polyethylene and acrylonitrile butadiene rubber

Kinetic characterization of ecto-nucleoside triphosphate diphosphohydrolases in brain nerve terminals during rat postnatal development

The antidepressant fluoxetine normalizes the nuclear glucocorticoid receptor evoked by psychosocial stress

Density and viscosity of 16α,17α-epoxyprogesterone solutions in chloroform

Pt-containing perovskite-type oxides used for catalytic methane combustion

The temperature dependence of pimelic acid solubility in 1-isopropyl-3-methylimidazolium bromide at 295–338 K

Russian Journal of Physical Chemistry : Volume 85, Issue 12, December 2011

Russian Journal of Physical Chemistry : Volume 85, Issue 11, November 2011

Russian Journal of Physical Chemistry : Volume 85, Issue 10, October 2011

Russian Journal of Physical Chemistry : Volume 85, Issue 9, September 2011

Russian Journal of Physical Chemistry : Volume 85, Issue 8, August 2011

Russian Journal of Physical Chemistry : Volume 85, Issue 7, July 2011

Russian Journal of Physical Chemistry : Volume 85, Issue 6, June 2011

Russian Journal of Physical Chemistry : Volume 85, Issue 5, May 2011

Russian Journal of Physical Chemistry : Volume 85, Issue 4, April 2011

Russian Journal of Physical Chemistry : Volume 85, Issue 3, March 2011

Russian Journal of Physical Chemistry : Volume 85, Issue 2, February 2011

Russian Journal of Physical Chemistry : Volume 85, Issue 1, January 2011

Russian Journal of Physical Chemistry : Volume 84

Russian Journal of Physical Chemistry : Volume 83

Russian Journal of Physical Chemistry : Volume 82

Russian Journal of Physical Chemistry : Volume 81

Russian Journal of Physical Chemistry : Volume 80

Effect of the support and the reduction temperature on the formation of metallic nickel phase in Ni/silica gel precursors of vegetable oil hydrogenation catalysts

Content Provider	Springer Nature Link
Author	Gabrovska, M. Krstić, J. Tzvetkov, P. Tenchev, K. Shopska, M. Vukelić, N. Jovavić, D.
Copyright Year	2011
Abstract	Ni/SiO$_{2}$ materials with identical composition (SiO$_{2}$/Ni = 1.0) have been synthesized by precipitation of Ni(NO$_{3}$)$_{2}$ · 6H$_{2}$O solution with Na$_{2}$CO$_{3}$ solution on the silica gel, obtained at three different pH values. The present investigation was undertaken in an endeavor to study the effects of the silica gel support type and the reduction temperature on the formation and dispersion of the metallic nickel phase in the reduced Ni/SiO$_{2}$ precursors of the vegetable oil hydrogenation catalyst. The physicochemical characterization of the unreduced and reduced precursors has been accomplished appropriately by powder X-ray diffraction, infrared spectroscopy, temperature programmed reduction and H$_{2}$-chemisorption techniques. It can be stated that the texture peculiarities of the silica gels used as supports influence on the crystalline state and distribution of the deposited Ni-containing phases during the preparation of the precursors, on the reduction temperature of the investigated solids as well as on the bulk size and surface dispersion of the arising metallic nickel particles. It was shown that two types of Ni$^{2+}$-species are formed during the synthesis procedure, namely basic nickel carbonate-like and Ni-phyllosilicate with different extent of presence, location and strength of interaction. The different location of these species is supposed to result in various strength of Ni-O and Ni-O-Si interaction, thus determining the overall reducibility of the precursors. It was specified that the Ni$^{2+}$-species are strongly bonded to the surface of the silica gel obtained at neutral pH value and weakly bonded to the surface of those prepared in acidic and alkaline conditions. It was established that the precursor, derivates from the silica gel obtained at alkaline conditions, demonstrates both significant reduction of the Ni2+ ions at 430°C and finely dispersed metallic nickel particles on its surface. High dispersion of the metallic nickel might be the crucial reason for achieving of high activity in the vegetable oil hydrogenation.
Starting Page	2392
Ending Page	2398
Page Count	7
File Format	PDF
ISSN	00360244
Journal	Russian Journal of Physical Chemistry
Volume Number	85
Issue Number	13
e-ISSN	1531863X
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2011-12-09
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	metalic nickel phase formation in Ni/silica gel hydrogenation catalyst effect of the support and reduction temperature Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Surface properties of the Ni-silica gel catalyst precursors for the vegetable oil hydrogenation process: N$_{2}$ sorption and XPS studies

Perlite as a potential support for nickel catalyst in the process of sunflower oil hydrogenation

Effect of Organic Nickel Precursor on the Reduction Performance and Hydrogenation Activity of Ni/Al2O3 Catalysts

The state of nickel in the silver modified NiMg/SiO$_{2}$ vegetable oil hydrogenation catalysts

Non-isothermal reduction of silica-supported nickel catalyst precursors in hydrogen atmosphere: a kinetic study and statistical interpretation

Mesocellular silica foam supported Ni$_{2}$P catalysts with high hydrogenation activity

Selective hydrogenation of sunflower oil over Ni catalysts

Effect of activation atmosphere on the reduction behaviors, dispersion and activities of nickel catalysts for the hydrogenation of naphthalene

Vapour phase hydrogenation of nitrobenzene over metal (Ru, Ni, Pt, Pd) supported on Ca5(PO4)3(OH) catalysts

Effect of the support and the reduction temperature on the formation of metallic nickel phase in Ni/silica gel precursors of vegetable oil hydrogenation catalysts

Similar Documents

Surface properties of the Ni-silica gel catalyst precursors for the vegetable oil hydrogenation process: N$_{2}$ sorption and XPS studies

Perlite as a potential support for nickel catalyst in the process of sunflower oil hydrogenation

Effect of Organic Nickel Precursor on the Reduction Performance and Hydrogenation Activity of Ni/Al2O3 Catalysts

The state of nickel in the silver modified NiMg/SiO$_{2}$ vegetable oil hydrogenation catalysts

Non-isothermal reduction of silica-supported nickel catalyst precursors in hydrogen atmosphere: a kinetic study and statistical interpretation

Mesocellular silica foam supported Ni$_{2}$P catalysts with high hydrogenation activity

Selective hydrogenation of sunflower oil over Ni catalysts

Effect of activation atmosphere on the reduction behaviors, dispersion and activities of nickel catalysts for the hydrogenation of naphthalene

Vapour phase hydrogenation of nitrobenzene over metal (Ru, Ni, Pt, Pd) supported on Ca5(PO4)3(OH) catalysts

Effect of the support and the reduction temperature on the formation of metallic nickel phase in Ni/silica gel precursors of vegetable oil hydrogenation catalysts