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- W1988531160 abstract "The physicochemical properties and catalytic activity of pure and sulfated titanium oxide (TiO2 and ) is described in this work. Titanium hydroxide synthesized by the sol-gel method was impregnated with a 1 N H2SO4 solution, varying amount of sulfate ions () in the range from 10 to 20 wt%. Pure and modified hydroxides were calcined at 500°C for 3 h and then characterized by TGA-DTG, XRD, BET, FT-IR, potentiometric titration with n-butylamine and 2-propanol dehydration. Catalytic activity of materials was tested in the n-hexane isomerization at 350°C. The results showed that TiO2 and mainly developed anatase phase. All have acceptable specific surface area (95-105 m2/g). Potentiometric titration with n-butylamine revealed that showed higher acidity (430-530 mV) than compared to pure TiO2 (﹣15 mV), indicating that this oxide only has weak acidity. The results showed good relationship between acidity determined by potentiometric titration with n-butylamine and the catalytic activity evaluated by 2-propanol dehydration and n-hexane isomerization. Titanium oxide with 20 wt% ofions was the material that demonstrated the highest catalytic activity for both reactions." @default.
- W1988531160 created "2016-06-24" @default.
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- W1988531160 date "2013-01-01" @default.
- W1988531160 modified "2023-10-10" @default.
- W1988531160 title "Synthesis of Solid Acid Catalysts Based on TiO<sub>2</sub>- SO<sub>4</sub><sup>2-</sup>and Pt/TiO<sub>2</sub>- SO<sub>4</sub><sup>2-</sup> Applied in <i>n</i>-Hexane Isomerization" @default.
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- W1988531160 doi "https://doi.org/10.4236/ojmetal.2013.33006" @default.
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