CAS dicp 
 

Catalytic Reaction Chemistry Group

The research activities of our group are mainly concentrated on two aspects. One is the synthesis and assembly of catalytic materials with controlled particle size and morphology in nano-scales, involving both metal and metal oxides. Another target is to use these catalytic materials for chemical reactions that are potentially significant for energy conversion and environmental protection, such as hydrogen production from renewable and fossil resources, methane activation, catalytic conversion of methanol, DME and ethanol, and oxidation of light oxygenates. The aim is to integrate the two aspects for establishing the structure-reactivity relationship which is the core of heterogeneous catalysis.
 What's New:
Exposed {110} plane occupies 41% of the total surface area
   
Co3O4 Nanorods not only catalyse CO oxidation at temperatures as low as -77℃ but also remain stable in a moist stream of normal feed gas. High-resolution transmission electron microscopy demonstrates that the Co3O4 nanorods predominantly expose their {110} planes, favouring the presence of active Co3+ species at the surface. Kinetic analyses reveal that the turnover frequency associated with individual Co3+ sites on the nanorods is similar to that of the conventional nanoparticles of this material, indicating that the significantly higher reaction rate that we have obtained with a nanorod morphology is probably due to the surface richness of active Co3+ sites. These results show the importance of morphology control in the preparation of base transitionmetal oxides as highly efficient oxidation catalysts.(Nature, 458 (2009) 746-749)

Undergoing projects:

Methane Conversion
Methane Non-oxidative Dehydrogenation to Aromatics and Hydrogen
Methane Cracking to Carbon Materials and Hydrogen

Ethanol Conversion
SR and OSR of Ethanol to Hydrogen
Selective Oxidation of Ethanol to Acetaldehyde/Acetic Acid

Methanol and DME conversion
DME Carbonylation to Methyl Acetate
Methanol Oxidation and Condensation to Diesel Additives (DMMs)

Fine Chemicals
Hydrogen-transfer Dehydrogenation of Primary Alcohols
Heterogeneous Chiral Hydrogenation of C=C and C=N Organics

Nanocatalysis
Co3O4 nanomaterials for Low-temperature Oxidation of CO
CeO2-based oxides for Formaldehyde Oxidation
Perovsike-structure Materials for deNOx
Nanoatructured redox and acid-base metal oxides
Morphology controlled synthesis of metallic cobalt.(Nanotechnology 19 (2008) 365608;J.Phys.Chem.C 113 (2009) 3436-3441;Langmuir 25 (2009) 6425-6430 )
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