화학공학소재연구정보센터
Chemistry Letters, Vol.47, No.7, 897-900, 2018
Synthesis of Microporous Zincosilicate *BEA Molecular Sieves from Zincosilicate Gels Co-precipitated in the Presence of an Organic Structure-directing Agent
A facile method for synthesizing microporous zincosilicate *BEA molecular sieves was proposed using co-precipitated homogeneous zincosilicate gels containing the tetraethylammonium cation (TEA(+)) as an organic structure-directing agent. Characterization of the co-precipitated gels indicated that zinc species and TEA(+) were distributed in the silicate matrix. Zincosilicate *BEA molecular sieves with a high zinc content were obtained from the gels, while highly crystalline molecular sieves could not be synthesized using conventional zinc and silicon sources under the same conditions.