title: Graphite oxide-supported CaO catalysts for transesterification of soybean oil with methanol.
abstract: Graphite oxide (GO) supported CaO catalysts were prepared and successfully applied to the transesterification of soybean oil with methanol. The supports and resultant catalysts were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), N(2) adsorption, thermogravimetry (TG), X-ray photoelectron spectroscopy (XPS), temperature-programed desorption (TPD) and Fourier-transform infrared spectroscopy (FT-IR). The GO supported CaO catalysts exhibited excellent catalytic activity and were easily regenerated by simple heat-treatment. The oxygen-containing groups (i.e., hydroxyl, epoxide groups and carboxyl groups) present on the surface of GO likely act as anchoring centers for CaO. This work demonstrates that graphite oxide is an effective host material of catalytically active CaO nanoparticles for the transesterification of soybean oil with methanol to produce biodiesel.
authors.affiliation: State Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry, Jilin University, Changchun 130021, China.
authors.forename: Yanhong
authors.initials: Y
authors.lastname: Zu
authors.forename: Jianyuan
authors.initials: J
authors.lastname: Tang
authors.forename: Wanchun
authors.initials: W
authors.lastname: Zhu
authors.forename: Min
authors.initials: M
authors.lastname: Zhang
authors.forename: Gang
authors.initials: G
authors.lastname: Liu
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.forename: Wenxiang
authors.initials: W
authors.lastname: Zhang
authors.forename: Mingjun
authors.initials: M
authors.lastname: Jia
mesh_terms: D000327:Adsorption; D017610:Calcium Compounds / Q000737:chemistry*; D002384:Catalysis; D004951:Esterification; D006108:Graphite / Q000737:chemistry*; D000432:Methanol / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D015394:Molecular Structure; D053758:Nanoparticles / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry; D010087:Oxides / Q000737:chemistry*; D056951:Photoelectron Spectroscopy; D013024:Soybean Oil / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D017610:Calcium Compounds; D010087:Oxides; D006108:Graphite; D013024:Soybean Oil; C016538:lime; D009584:Nitrogen; D000432:Methanol