Fabrication of CdxZn1-xS@VPO (x=0.2) Nanocomposites for n-Butane Selective Oxidation Toward Maleic Anhydride

Vanadium phosphorous oxide (VPO) catalysts have been recognized as heterogeneous catalyst for selective oxidation of lowcarbon alkanes i.e., n-butane toward maleic anhydride. This process has widely gained attention globally due to its highly selective and cost-effective process. Herein, we employed Cd0.2Zn0.8S as a support for the VPO catalyst and evaluated its n-butane catalytic performance. Compared to the unpromoted catalyst (Blank-VPO), a higher n-butane conversion and MA yield were successfully obtained from the promoted catalyst (Cd0.2Zn0.8S@VPO). Interestingly, it reduces the byproducts, i.e., CO2 and CO emission. Characterization methods such as TGA, XRD, EDS, SEM, FTIR, NH3-TPD, XPS, TEM, and Raman spectroscopy were used to characterize the Cd0.2Zn0.8S, VPO precursor and catalyst. [GRAPHICS] .