Performance of Bulk and Silica Supported Vanadium–Chromium Catalysts in the Ammoxidation of 3-Picoline

Optimizing Selectivity in VOx/TiO2 Catalysts for Ammoxidation: Insights from Structure–Performance Relationships

“…Various inorganic oxides such as TiO 2 , ZrO 2 , SiO 2 , γ-Al 2 O 3 , etc. were chosen as supports to tune the catalytic performance. − …”

Solvothermal synthesis and characterization of nanocrystalline vanadium-chromium composite oxides and catalytic ammoxidation of 2,6-dichlorotoluene

“…Vanadium-chromium composite oxides (VCrO) have been the subject of extensive research because of their use in a wide range of applications such as heterogeneous catalysis [1][2][3][4][5][6][7][8][9]22,23], gas sensing [24], and energy storage [25,26]. They were traditionally prepared by high-temperature solid-state reactions between pure oxide components.…”

“…Depending on the reaction conditions, various phases such as CrVO4 [27], Cr(VO3)3 [28], Cr4(V2O7)3 [29], and Cr2V4O13 [30] may occur. Among these, CrVO4 has been widely used as an oxidation catalyst in some important industrial reactions, including oxidation of benzene to maleic anhydride or methanol to formaldehyde and the ammoxidation of aromatic compounds [1][2][3][4][5][6][7][8][9]14,31]. CrVO4 has three different crystal structures, namely orthorhombic, monoclinic, and tetragonal [32].…”