SAPO-11, SAPO-31, and SAPO-41 Molecular Sieves: Synthesis, Characterization, and Catalytic Properties inn-Octane Hydroisomerization

On the synthesis of vanadium containing molecular sieves by experimental design from a VOSO4·5H2O·Al(iPrO)3·Pr2NH·H2O gel: occurrence of VAPO-41 as a secondary structure in the synthesis of VAPO-11

“…For comparison purposes, a VAPO-5 material was synthesized following an earlier reported recipe [24]. Additionally, a high crystalline VAPO-11 sample was obtained using known procedures [28], which is considered as standard for evaluating the XRD crystallinity degree.…”

Framework cobalt and manganese in MeAPO-31 (Me=Co, Mn) molecular sieves

“…Phosphorus substitution was later confirmed using several characterization methods [4][5][6][7] and was supported by several catalytic reactions such as hydrocarbon transformations [8][9][10][11][12]. Suggestions for the incorporation of other metals into the AlPO 4 -31 framework can be found in three publications for TAPO-31 [13], ZnAPO-31 [3] and MgAPO-31 [3,14], and catalytic applications are reported for TAPO-31 [15], VAPO-31 [16], MnAPO-31 [8,17], NiAPO-31 [17], ZnAPO-31 [17] and FeAPO-31 [18].…”

Synthesis of hierarchical MeAPO-5 molecular sieves – Catalysts for the oxidation of hydrocarbons with efficient mass transport

“…Metal-containing aluminophosphate molecular sieves have acid and/or redox properties, which have been widely used as catalysts in the oxidation of hydrocarbons [18,19], alkane/alkene isomerization [37,38], phenol hydroxylation [39], and reduction of NO x [40]. Here, in order to study the effect of the hierarchical structure on the catalytic performance of MeAPO-5-meso, the selective oxidation of hydrocarbons was studied using MnAPO-5-meso, FeAPO-5-meso and CoAPO-5-meso as catalysts and molecular oxygen as oxidant.…”