Nickel-molybdenum mixed nitride catalysts were first reported for the ammoxidation of propane to acrylonitrile. It was found that the mixed nitrides exhibited high activity and selectivity to acrylonitrile. The mixed nitride catalyst with 1.0 of Ni/Mo atomic ratios showed the best catalytic properties for propane ammoxidation. The highest yield of acrylonitrile was 28.5% at the propane conversion of 68.4% at 773K

The La1-xKxMnO3 perovskite-type oxides whose sizes were in nanometric range were prepared by the citric acid-ligated method. The structures of these perovskite-type oxides were examined by XRD and FT-IR. The catalytic activity for the combustion of soot particulate was evaluated by a technique of the temperature-programmed reaction. In the LaMnO3 catalyst, the partial substitution of K for La at A-site enhanced the catalytic activity for the combustion of soot particle. In the La1-xKxMnO3 catalysts, the combustion temperature of soot particle decreases with increasing x values. The La1-xKxMnO3 oxides with the substitution quantity between x=0.20 and x=0.25 are good candidate catalysts for the soot particle removal reaction, and the combustion temperature of soot particle is between 285 and 430℃ when the contact of catalysts and soot is loose, and their catalytic activities for the combustion of soot particle are as good as supported Pt catalysts, which is the best catalyst system so far reported for soot combustion under loose contact conditions.

Fe-modified HZSM-5 catalysts were firstly used for catalytic cracking of isobutane, and the influence of Fe-loading on the catalytic performances of FeHZSM-5 catalysts for the cracking of isobutane was also investigated. The results indicated that both the isobutane cracking activity and the selectivity to light olefins of FeHZSM-5 samples with a small amount of Fe were greatly enhanced compared with the unpromoted HZSM-5, and very high yields of total olefins and propylene were obtained. For example, for the FeHZSM-5 sample loading with 0.010 mmol/g Fe the total yield of olefins reached 65.6%, and the yield of propylene was 32.4% at 625℃.

A comparative study on the effects of alkali metal on the structures, physico-chemical properties and catalytic behaviors of silica-supported vanadium catalysts for the selective oxidation of ethane and the complete oxidation of diesel soot was reported.

Several systems of vanadium oxide and K-promoted vanadium oxide catalysts which supported on different carries with the variations of V contents and K contents were prepared by incipient-wetness impregnation method. Their catalytic performances for diesel soot catalytic oxidation were investigated with temperature-programmed oxidation reaction (TPO). Spectroscopic techniques (FT-IR and UV–vis DRS) were utilized to determine the structure of VOx species for vanadia supported on γ-Al2O3, SiO2, TiO2, and ZrO2. Thermal analysis techniques, including thermogravimetrical (TG-DTA) analyses and temperature-programmed reduction (TPR), were used to characterize the thermal behavior and redox properties of K promoting vanadium oxide catalysts, respectively. The results showed that the structure of supportedvanadia catalysts depends on the support materials and also on the V loading. At high V loading, VOx species exists predominantly as polyvanadate species and V2O5. The catalytic activities of the catalysts for soot oxidation are correlated to their redox property and the mobility of surface atoms. The catalytic activity for soot oxidation orders as Ti > Zr > Si > Al, and the sequence for selectivity to CO2 formation (Sco2) is Ti > Zr > Si ~Al for the catalysts over different supports. Adding potassium into supported vanadia catalysts can improve the catalytic activity of soot oxidation. And when n(K):n(V):n(Ti) = 4:4:100 the catalyst of K4V4/TiO2 gives the best activity for soot combustion, i.e., the lowest reaction temperature.