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Ni@ZrO 2 yolk-shell catalyst for CO 2 methane reforming: Effect of Ni@SiO 2 size as the hard-template.
- Source :
-
Journal of colloid and interface science [J Colloid Interface Sci] 2021 May 15; Vol. 590, pp. 641-651. Date of Electronic Publication: 2021 Feb 02. - Publication Year :
- 2021
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Abstract
- This paper reports the usage ratio of TEOS and Zr(OBu) <subscript>4</subscript> on the formation of Ni@ZrO <subscript>2</subscript> yolk-shell for dry reforming of methane. From XPS analysis, the ZrO <subscript>2</subscript> hollow shell texture is demonstrated to be [TEOS]/[Zr(OBu) <subscript>4</subscript> ] dependent due to different sizes of SiO <subscript>2</subscript> produced. It found that an adequate ratio of [TEOS]/[Zr(OBu) <subscript>4</subscript> ] improves the catalytic conversion of dry reforming of methane. It (Ni@ZrO <subscript>2</subscript> -SiZr-7.7) shows 90% conversion for CH <subscript>4</subscript> and 93% for CO <subscript>2</subscript> at a WHSV of 72,000 mLg <subscript>cat</subscript> <superscript>-1</superscript> h <superscript>-1</superscript> for 50 h at 800 °C with TOF <subscript>CH4</subscript> of 8.7 s <superscript>-1</superscript> . It proposed that the changes in surface Si/Zr and gradual interconnecting pores contributed to its activity and stability. These finding's potential to be utilized in other high-temperature reactions.<br />Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2021 Elsevier Inc. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1095-7103
- Volume :
- 590
- Database :
- MEDLINE
- Journal :
- Journal of colloid and interface science
- Publication Type :
- Academic Journal
- Accession number :
- 33582366
- Full Text :
- https://doi.org/10.1016/j.jcis.2021.01.100