Title : Novel nickel-palladium catalyst for hydrogenation aromatic compound
Abstract:
The novel hydrogenation catalysts, palladium (Pd) immobilized in nickel wire (Pd/Niw), were prepared via exterior magnetic field following reduction reaction in this study. Characteristic and the morphology were identified by using X-ray diffraction and scanning electron microscopy, respectively. Amount of Pd in Pd/Niw was in the range of 13 wt.% to 15 wt.% from inductively coupled plasma-atomic emission spectroscopy measurement. The particle size of Pd in Pd/Niw was ca. 20-100 nm via high-resolution transmission electron microscopy observation. The saturation magnetization of Pd/Niw catalyst was 37.25 emu/g after PPMS-16T measurement. Furthermore, as the Pd/Niw was acted as catalyst for the hydrogenation of bis (2-ethylhexyl) phthalate (DEHP), 100% conversion of DEHP was obtained at 180 ? and 1000 psi. At the optimum condition 100% conversion of dimethyl terephthalate (DMT) and bisphenol A (BPA) were also achieved This novel hydrogenation catalysts has easy manufacture with low cost and has potential for commercialization in future.
