TiO-Doped CeO Nanorod Catalyst for Direct Conversion of CO and CHOH to Dimethyl Carbonate: Catalytic Performance and Kinetic Study.

A new class of TiO-doped CeO nanorods was synthesized via a modified hydrothermal method, and these nanorods were first used as catalysts for the direct synthesis of dimethyl carbonate (DMC) from CO and CHOH in a fixed-bed reactor. The micromorphologies and physical-chemical properties of nanorods were characterized by transmission electron microscopy, X-ray diffraction, N adsorption, inductively coupled plasma atomic emission spectrometry, X-ray photoelectron spectroscopy, and temperature-programmed desorption of ammonia and carbon dioxide (NH-TPD and CO-TPD). The effects of the TiO doping ratio on the catalytic performances were fully investigated.

Synthesis of Co(1.5)PW12O40 and its catalytic performance of completely converting methanol to ethylene.

A new catalyst Co(1.5)PW12O40 was synthesized with exceptional catalytic performance of converting methanol to ethylene. Under the optimal conditions, both the conversion of methanol and the selectivity of ethylene are almost 100%, which can thus avoid a product separation process.