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Lin, Chun-Ping; Lin, Shawn D.; Yang, Yi-Hung; Lin, Tsung-Po

doi:10.1023/a:1016681422187

Cited by 28 publications

(12 citation statements)

References 11 publications

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“…3. The high temperature peak at 770°C for STZ, the peak at 810°C for STL and that at 800°C for STC were due to the decomposition of SO 4 2-in these catalysts [26]. In addition to the decomposition peak, a well defined plateau area (478-602°C) and an asymmetric peak at 210°C were observed for STZ.…”

Section: Resultsmentioning

confidence: 85%

Effective SO4 2−/TiO2–ZrO2 for preparation and hydrolysis of 1,3-propanediol acetals

Yang³

et al. 2010

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SO 4 2-/TiO 2 -M x O y (M = Zr, Ce, La) were prepared by the precipitation-impregnation method and characterized by X-ray powder diffraction (XRD), Fourier transform infrared (FT-IR), and temperature-programmed desorption (NH 3 -TPD). Catalytic activities were evaluated in the acetalization of 1,3-propanediol (1,3-PD) with acetaldehyde and hydrolysis of 2-methyl-1,3-dioxane (2MD). SO 4 2-/ TiO 2 -ZrO 2 (STZ) exhibited the best catalytic activity both in the acetalization and hydrolysis. With the molar ratio of Zr 4? /Ti 4? = 1:4, the highest yields were 96.45% in 3 h and 93.68% of 2MD hydrolyzed in 18 h, in contrast to the yields lower than 60% by using other superacids. These results are consistent with the strongest acidity of the superacid containing Zr 4? among prepared superacids containing other cations.

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Section: Resultsmentioning

confidence: 85%

Effective SO4 2−/TiO2–ZrO2 for preparation and hydrolysis of 1,3-propanediol acetals

Yang³

et al. 2010

Reac Kinet Mech Cat

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“…to complete the reaction but HM catalyst would require 120 min. [14]. We attributed this activity difference to the slow diffusion of bulk dimethyl acetal out of HM framework.…”

Section: Resultsmentioning

confidence: 93%

“…Sulfated metal oxides were prepared according to the method reported previously, and except for SO 4 )2 / Al 2 O 3 , all SMO were prepared by immersing the appropriate metal hydroxides into a sulfuric acid solution [14]. The mixture was filtered, dried, and calcined at a proper temperature to produce SMO.…”

Section: Methodsmentioning

confidence: 99%

A Convenient Preparation Method for Synthesizing Formamidine Utilizing Sulfated Zirconia

2005

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Sulfated zirconia is able to effectively catalyze the reaction between aniline and trimethyl orthoformate to produce formamidine with a product yield of 97% at 313 K. N-phenylformimidate is proposed as the reaction intermediate, which reacts further with aniline to produce formamidine. Less degree of acid sites poisoning by the reaction mixture due to the weaker acidity of sulfated zirconia as well as its mesoporosity seem to play important role in this catalyzed reaction.

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“…We had shown that by impregnating TiO 2 nanotubes with H 2 SO 4 solution followed by calcining at 573 K, these nanotubes would acquire some acidity and catalyzed the formation of acetal [6,21,22]. The decomposition of acetic acid into methane and CO 2 as reported by Bard et al were thermodynamically favorable (DG 0 = À55:8 kJ/mol) [23].…”

Section: Resultsmentioning

confidence: 99%

Photocatalytic Generation of H2 Gas from Neat Ethanol over Pt/TiO2 Nanotube Catalysts

et al. 2004

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TiO 2 nanotubes promoted with Pt metal were prepared and tested to be the photocatalytic dehydrogenation catalyst in neat ethanol for producing H 2 gas ðC 2 H 5 OH ! C 3 CHO þ H 2 Þ. It was found that the ability to produce H 2 , the liquid phase product distribution and the catalyst stability of these promoted nano catalysts all depended on the Pt loading and catalyst preparation procedure. These Pt/TiO 2 catalysts with TiO 2 nanotubes washed with diluted H 2 SO 4 solution produced 1, 2-diethoxy ethane (acetal) as the major liquid phase product, while over those washed with diluted HCl solution or H 2 O, acetaldehyde was the major liquid phase product.

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Untitled

Cited by 28 publications

References 11 publications

Effective SO4 2−/TiO2–ZrO2 for preparation and hydrolysis of 1,3-propanediol acetals

Effective SO4 2−/TiO2–ZrO2 for preparation and hydrolysis of 1,3-propanediol acetals

A Convenient Preparation Method for Synthesizing Formamidine Utilizing Sulfated Zirconia

Photocatalytic Generation of H2 Gas from Neat Ethanol over Pt/TiO2 Nanotube Catalysts

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