Enhanced performance in catalytic combustion of toluene over mesoporous Beta zeolite-supported platinum catalyst

Chen, Chun-Yu; Zhu, Jin; Chen, Fang; Meng, Xiangju; Zheng, Xiaoming; Gao, Xionghou; Xiao, Feng‐Shou

doi:10.1016/j.apcatb.2013.03.050

Cited by 117 publications

(56 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The toluene conversion over the developed materials is lower compared to those achieved in the presence of noble metal-containing BEA zeolites, previously described in the literature [13][14][15]20]. The Pt-loaded BEA zeolites showed T50 even below 200 °C under conditions similar to those used in the present work.…”

Section: Effect Of Cobalt Contentmentioning

confidence: 50%

“…The stability of noble metal deposited on BEA zeolite in the VOCs combustion can be enhanced by using of partially dealuminated support, addition of co-promoters (e.g. Fe) or formation of hierarchical micromesoporous system [15,21]. Nevertheless, these catalysts are still characterized by relatively low stability.…”

mentioning

confidence: 99%

“…Noble metal-based materials (e.g. Pt [9][10][11][12][13][14][15] and Pd [16][17][18][19][20][21] dispersed on various supports, such as Al2O3 [6, 9-10, 12, 14, 17, 19-20], ZrO2 [6,19] or TiO2 [16][17][18]), are usually studied in a role of catalysts of the VOCs combustion. They exhibit very high catalytic activity at relatively low temperatures, but are expensive and prone to deactivation by sintering or poisoning.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Cobalt-containing BEA zeolite for catalytic combustion of toluene

Rokicińska

Drozdek

Dudek

et al. 2017

Applied Catalysis B: Environmental

View full text Add to dashboard Cite

GRAPHICAL ABSTRACT Highlights-Controlled amounts of cobalt were homogeneously introduced in BEA structure.-Various forms of Co species were identified in Co-containing BEA structure.-After saturation of framework sites Co formed oxide clusters and crystallites.-The presence of Lewis acid sites resulted in enhanced selectivity to CO and benzene.-The highest activity showed Co-containing SiBEA with dominant contribution of Co3O4. AbstractCo-containing HAlBEA zeolite was obtained by conventional wet impregnation of HAlBEA zeolite with an aqueous Co(NO3)2 . 6 H2O solution, whereas Co-containing SiBEA zeolites were prepared by a two-step post-synthesis method. This approach consists of, in the first step, dealumination of parent BEA zeolite to obtain an aluminum-free SiBEA support and then, in the subsequent step, contact of the obtained material with an aqueous solution of cobalt nitrate. As shown by X-ray diffraction and low-temperature N2 adsorption, the dealumination of BEA zeolite and introduction of cobalt ions did not involve destruction of zeolite structure, and only insignificant blocking of pore system was observed after introduction of high amounts of cobalt. Nevertheless, clear changes in acidity were found by FTIR of pre-adsorbed pyridine after dealumination of parent BEA zeolite and introduction of cobalt ions. The presence of Lewis acid sites resulted in enhanced selectivity to CO and benzene formed as by-products in the toluene combustion. Therefore, SiBEA zeolite was chosen as a support for an introduction of various amounts of Co into the zeolite structure (the intended Co contents of 3.0 -9.0 wt %). Depended on the amount of the introduced Co, cobalt was incorporated into the framework of BEA zeolite as isolated mononuclear Co(II) species, small Co(II) oxide clusters and/or Co3O4 crystallites distributed in the whole zeolite structure.The chemical environment and dispersion of cobalt species were studied by transmission electron microscopy (TEM), FTIR of pre-adsorbed NO, UV-vis diffuse reflectance spectroscopy and X-ray photoelectron spectroscopy (XPS). Temperature-programmed reduction of hydrogen (H2-TPR) was also performed to determine reducibility of the Cocontaining SiBEA zeolites. It was confirmed that siliceous SiBEA zeolite was the excellent support of Co3O4, which was in turn recognized as the main active phase in the total oxidation of toluene. The best catalytic performance was achieved over the catalysts containing at least 0.05 mmol of Co in the form of Co3O4 per 1 g of SiBEA zeolite.

show abstract

Section: Effect Of Cobalt Contentmentioning

confidence: 50%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Cobalt-containing BEA zeolite for catalytic combustion of toluene

Rokicińska

Drozdek

Dudek

et al. 2017

Applied Catalysis B: Environmental

View full text Add to dashboard Cite

show abstract

“…Investigations have been performed to reveal the effects of combustor fabrications, operating conditions and catalyst or support type on combustion characteristics [4][5][6][7][8][9][10][11][12]. It was demonstrated that methanol-air could self-ignite at room temperature with catalyst of platinum nanoparticles [13].…”

Section: Introductionmentioning

confidence: 99%

Catalytic combustion of methane, methanol, and ethanol in microscale combustors with Pt/ZSM-5 packed beds

Deng

Yang

Zhou

et al. 2015

Fuel

View full text Add to dashboard Cite

“…Therefore, the supports effect should be analyzed between the supported perovskite and the support during the catalytic combustion. Among various support materials, zeolite was the most excellent supports because of its high surface area, uniform and intricate channels, high adsorption capacity, acidic properties, and good thermal stability [11][12][13]. On the basis of pore structures, microporous and mesporous zeolites with different channel systems were two important zeolites from the catalytic point of view.…”

Section: Introductionmentioning

confidence: 99%

Catalytic combustion of toluene with Pd/La_0.8Ce_0.2MnO₃ supported on different zeolites

Wang

Zhao

et al. 2017

Env Prog and Sustain Energy

View full text Add to dashboard Cite

Pd/La 0.8 Ce 0.2 MnO 3 catalysts supported on various kinds of zeolites (ZSM-5, MOR, NaY, and b) were prepared by incipient wetness impregnation method, and these catalysts were investigated by Brunauer-Emmett-Teller, X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy, and H 2 -temperature programmed reduction. The catalytic activity of these catalysts was tested for toluene catalytic combustion, and the support effect was investigated. It was found that the ZSM-5 is the best support than other zeolites (MOR, NaY, and b), because it processes the higher acidity and reducibility, although its specific surface area is smaller than the others. Result of XRD indicates that Pd species are highly dispersed on the surface of the catalysts, and the doping of Pd could greatly improve the activity of La 0.8 Ce 0.2 MnO 3 , the light-off and complete conversion temperature of Pd/La 0.8 Ce 0.2 MnO 3 / ZSM-5 are only 112 and 2278C, respectively. V C 2017 American Institute of Chemical Engineers Environ Prog, 37: 215-220, 2018

show abstract

Enhanced performance in catalytic combustion of toluene over mesoporous Beta zeolite-supported platinum catalyst

Cited by 117 publications

References 55 publications

Cobalt-containing BEA zeolite for catalytic combustion of toluene

Cobalt-containing BEA zeolite for catalytic combustion of toluene

Catalytic combustion of methane, methanol, and ethanol in microscale combustors with Pt/ZSM-5 packed beds

Catalytic combustion of toluene with Pd/La_0.8Ce_0.2MnO₃ supported on different zeolites

Contact Info

Product

Resources

About

Enhanced performance in catalytic combustion of toluene over mesoporous Beta zeolite-supported platinum catalyst

Cited by 117 publications

References 55 publications

Cobalt-containing BEA zeolite for catalytic combustion of toluene

Cobalt-containing BEA zeolite for catalytic combustion of toluene

Catalytic combustion of methane, methanol, and ethanol in microscale combustors with Pt/ZSM-5 packed beds

Catalytic combustion of toluene with Pd/La0.8Ce0.2MnO3 supported on different zeolites

Contact Info

Product

Resources

About

Catalytic combustion of toluene with Pd/La_0.8Ce_0.2MnO₃ supported on different zeolites