Glycothermal method

Glycothermal reaction of two starting materials gives various crystalline mixed oxides, and some of the mixed oxides synthesized by the glycothermal method are summarized in Table According to our working hypoth-... 

The particle size of the mixed oxide is usually larger than simple oxide prepared by the glycothermal method. 

Several methods are found in the literature for the synthesis of Ce02-based mixed oxides, including the coprecipitation method [7-10], the hydrothermal method [11], the microemulsion method [3,12], the glycothermal method [13,14], the citrate method [6], and the Pechini method [5]. 

The aim of the current woik was to prepare and characterise Z11AI2O4 using microwave-assisted glycothermal method, and test Pt and Pd catalysts supported on it in total oxidation of diluted isobutane, selected as a VOC molecule. Reaction parameters were optimized to obtain low crystalline zinc aluminate spinel with high specific surface area... 

M. Inoue, H. Otsu, H. Kominami, T. Inui, 1991, Synthesis of Double Oxides Having Spinel Structure (Z11AI2O4, ZnGa204) by the Glycothermal Method, J. Chem. Soc. Jpn.,7, 1036-1038. 

Table 1 lists the support used in the present study. TIO is a Reference Catalyst of the Catalysis Society of Japan (JRC-TIO-4, equivalent to P-25) [9]. ST (supplied from Catalysts and Chemicals Ind. Co., Ltd.) was prepared by the coprecipitation method. GT and XG were prepared by the thermal reaction of titanium tetraisopropoxide and tetraethylorfriosilicate in glycols (glycothermal reaction) [7]. HT was prepared by the hydrolysis of titanium alkoxide in toluene with water that was dissolved from gas phase at high temperature [8]. 

Glycothermal synthesis as a method of obtaining high surface area supports for noble metal catalysts... 

Glycothermal synthesis seems to be very attractive method for catalytic materials preparation, especially when microwave heating was applied. Research cany on this field indicate on many advantages of this method as short synthesis time, phase purity with better yield, homogeneity and high reproducibility [1-3], Various glycols may be used as reaction medium, and different reaction parameters (temperature, pressure, time, and others) can be applied what has influence on the properties of obtained materials [4], As a result, it provides direct and effective one step route to prepare nanomaterials of well-controlled properties, which can be used as catalyst or catalyst support... 

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