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Statements

Subject Item
n2:RIV%2F67985858%3A_____%2F13%3A00398837%21RIV14-AV0-67985858
rdf:type
n8:Vysledek skos:Concept
dcterms:description
High surface area TiO2 nanotubes synthesized by alkali hydrothermal method, alumina and titania were used as a support for NiW hydrodesulphurization catalyst. Nickel salt of 12-tungstophosphoric acid (Ni3/2PW12O40) was applied as oxide precursor of the active components. A polytungstate phase evidenced by Raman spectroscopy was observed indicating the destruction of the initial heteropolyanion. Two times higher thiophene conversion was revealed on NiW catalyst supported on TiO2 nanotubes than those of catalysts supported on alumina and titania. Increased HDS activity of the NiW catalyst supported on TiO2 nanotubes could be related to both a higher amount of W oxysulfide entities in interaction with Ni2+ species observed with XPS analysis and to beneficial effect of titania nanotubes. High surface area TiO2 nanotubes synthesized by alkali hydrothermal method, alumina and titania were used as a support for NiW hydrodesulphurization catalyst. Nickel salt of 12-tungstophosphoric acid (Ni3/2PW12O40) was applied as oxide precursor of the active components. A polytungstate phase evidenced by Raman spectroscopy was observed indicating the destruction of the initial heteropolyanion. Two times higher thiophene conversion was revealed on NiW catalyst supported on TiO2 nanotubes than those of catalysts supported on alumina and titania. Increased HDS activity of the NiW catalyst supported on TiO2 nanotubes could be related to both a higher amount of W oxysulfide entities in interaction with Ni2+ species observed with XPS analysis and to beneficial effect of titania nanotubes.
dcterms:title
TiO2 Nanotubes Supported NiW Hydrodesulphurization Catalysts: Characterization and Activity TiO2 Nanotubes Supported NiW Hydrodesulphurization Catalysts: Characterization and Activity
skos:prefLabel
TiO2 Nanotubes Supported NiW Hydrodesulphurization Catalysts: Characterization and Activity TiO2 Nanotubes Supported NiW Hydrodesulphurization Catalysts: Characterization and Activity
skos:notation
RIV/67985858:_____/13:00398837!RIV14-AV0-67985858
n8:predkladatel
n17:ico%3A67985858
n4:aktivita
n15:I
n4:aktivity
I
n4:cisloPeriodika
JAN 15
n4:dodaniDat
n7:2014
n4:domaciTvurceVysledku
n18:8799938
n4:druhVysledku
n10:J
n4:duvernostUdaju
n16:S
n4:entitaPredkladatele
n5:predkladatel
n4:idSjednocenehoVysledku
111144
n4:idVysledku
RIV/67985858:_____/13:00398837
n4:jazykVysledku
n11:eng
n4:klicovaSlova
nano-structured TiO2; NiW catalysts; XPS
n4:klicoveSlovo
n14:nano-structured%20TiO2 n14:NiW%20catalysts n14:XPS
n4:kodStatuVydavatele
NL - Nizozemsko
n4:kontrolniKodProRIV
[6ECADEC071F9]
n4:nazevZdroje
Applied Surface Science
n4:obor
n12:CI
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
5
n4:rokUplatneniVysledku
n7:2013
n4:svazekPeriodika
265
n4:tvurceVysledku
Palcheva, R. Tyuliev, G. Dimitrov, L. Spojakina, A. Jirátová, Květa
n4:wos
000312958500048
s:issn
0169-4332
s:numberOfPages
5
n6:doi
10.1016/j.apsusc.2012.11.001