Number of the records: 1
TiO2 Nanotubes Supported NiW Hydrodesulphurization Catalysts: Characterization and Activity
- 1.
SYSNO ASEP 0398837 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title TiO2 Nanotubes Supported NiW Hydrodesulphurization Catalysts: Characterization and Activity Author(s) Palcheva, R. (BG)
Dimitrov, L. (BG)
Tyuliev, G. (BG)
Spojakina, A. (BG)
Jirátová, Květa (UCHP-M) RID, ORCID, SAISource Title Applied Surface Science. - : Elsevier - ISSN 0169-4332
Roč. 265, JAN 15 (2013), s. 309-313Number of pages 5 s. Language eng - English Country NL - Netherlands Keywords nano-structured TiO2 ; NiW catalysts ; XPS Subject RIV CI - Industrial Chemistry, Chemical Engineering Institutional support UCHP-M - RVO:67985858 UT WOS 000312958500048 DOI 10.1016/j.apsusc.2012.11.001 Annotation 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. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2014
Number of the records: 1