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Deposition of Co onto Supported MoS2 by Water-Assisted Spreading: Increased Activity Promotion in Hydrodesulphurization of 1-Benzothiophene.
- 1.0511832 - ÚCHP 2020 RIV CH eng J - Journal Article
Kaluža, Luděk - Koštejn, Martin - Gulková, Daniela
Deposition of Co onto Supported MoS2 by Water-Assisted Spreading: Increased Activity Promotion in Hydrodesulphurization of 1-Benzothiophene.
Catalysts. Roč. 9, č. 12 (2019), č. článku 987. E-ISSN 2073-4344
R&D Projects: GA ČR GA17-22490S
Institutional support: RVO:67985858
Keywords : HDS * CoMo catalyst * water-assisted spreading
OECD category: Physical chemistry
Impact factor: 3.520, year: 2019
Method of publishing: Open access
https://www.mdpi.com/2073-4344/9/12/987
Hydrodesulphurization (HDS) catalysts were newly prepared by water-assisted spreading of CoCO3.Co(OH)2 of low solubility in water onto pre-sulphided Mo species supported on several Al2O3 of surface area SBET 77-262 m2g−1, ZrO2 of SBET 108 m2g−1, and TiO2 of SBET 140 m2g−1. The spreading was followed by scanning electron microscopy (SEM-EDX). X-ray photoelectron spectroscopy (XPS) and temperature programmed reduction (H2-TPR) characterized partial re-oxidation of sulphidic Mo catalysts before Co sorption. The prepared catalysts were characterized in sulphidic form by H2-TPR. Activity of catalysts was determined in the HDS reaction of 1-benzothiophene. The spreading of Co onto sulphidic catalysts led to systematic
increase of HDS activity by 16–86% in comparison to the spreading of Co onto oxide samples.
Permanent Link: http://hdl.handle.net/11104/0303717
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