Naphthalene hydrogenation over Pt/TiO2-ZrO2 and the behavior of strong metal-support interaction (SMSI)
TLDR
In this article, a continuous fixed-bed micro-reactor was used for naphthalene hydrogenation over various supported Pt catalysts and the reaction order was independent of the support and the pre-reduction temperature.Abstract:
Vapor-phase naphthalene hydrogenation over various supported Pt catalysts was studied in a continuous fixed-bed micro-reactor Experimental results indicated that the catalytic activity of the catalyst strongly depended on the nature of the support and the pre-reduction temperature Reaction order was independent of the support as the reaction was pseudo-first-order with respect to naphthalene in the temperature range studied By comparing the apparent rate constant over various supported Pt catalysts, Pt supported on TiO2–ZrO2 (1 : 1) reduced at a low temperature showed the highest activity For higher pre-reduction temperatures, Pt/TiO2–ZrO2 (1 : 1) exhibited the least suppression of H2 uptake, due to a stabilization effect exerted by ZrO2, which prevents the migration of TiOx moieties and the blockage of the Pt surface However, the apparent depression of the hydrogenation activity of high-temperature reduced Pt/TiO2–ZrO2 (1 : 1) was significantly greater than the suppression of its hydrogen uptake Furthermore, the decreasing value of the hydrogenation activity relative to the hydrogen uptake demonstrates electron perturbations between the support and the Pt metalread more
Citations
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Journal ArticleDOI
Recent Advances on TiO2‐ZrO2 Mixed Oxides as Catalysts and Catalyst Supports
Benjaram M. Reddy,Ataullah Khan +1 more
TL;DR: In this paper, a review of the synthesis of mixed oxides by various conventional and non-conventional methods and their characterization by several techniques, as reported in the literature, are assessed.
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Performance and characterization of supported metal catalysts for complete oxidation of formaldehyde at low temperatures
TL;DR: In this paper, a series of metals (Pt, Pd, Rh, Cu, Mn) supported on TiO2 were investigated for the catalytic oxidation of formaldehyde, and Pt/TiO2 was found to be the most promising catalyst.
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Dispersion, reduction and catalytic performance of CuO supported on ZrO2-doped TiO2 for NO removal by CO
TL;DR: In this paper, the performance of CuO catalysts supported on ZrO 2 -doped TiO 2 (hereafter denoted as TZ) and pure anatase TZ were characterized by HRTEM, XRD, UV-vis DRS, TPR, XPS, and activity test for the removal of NO by CO.
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Tuning catalytic selectivity of liquid-phase hydrogenation of furfural via synergistic effects of supported bimetallic catalysts
TL;DR: In this article, bimetallic catalysts supported over TiO2-ZrO2 binary oxides were prepared by co-impregnation methods and used for catalyzing liquid-phase hydrogenation of furfural.
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Characteristics of Al-MCM-41 supported Pt catalysts: effect of Al distribution in Al-MCM-41 on its catalytic activity in naphthalene hydrogenation
TL;DR: In this article, a high-pressure batch reactor over platinum catalysts supported on Al-MCM-41 where aluminum was incorporated through two different methods: a direct sol-gel method (Pre) and post-synthetic grafting method (Post).
References
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