【摘 要】
：
MnOx/Al2O3/Ce0.45Zr0.45M0.10Oy (M = Mn,Y,La) catalysts were prepared by impregnation method and characterized by BET,TPR and XRD analyses.The catalytic activiti
【机 构】
：
Key Laboratory of Green Chemistry & Technology
论文部分内容阅读
MnOx/Al2O3/Ce0.45Zr0.45M0.10Oy (M = Mn,Y,La) catalysts were prepared by impregnation method and characterized by BET,TPR and XRD analyses.The catalytic activities toward ethanol combustion were investigated in a microreactor.The results demonstrated that the catalytic activity of MnOx/Al2O3/Ce0.50Zr0.50O2 monolithic catalyst could be improved by doping Mn,Y and La into Ce0.50Zr0.50O2.When doping Y into Ce0.50Zr0.50O2,the catalyst MnOx/Al2O3/Ce0.45Zr0.45Y0.10O1.95 showed the highest activity.The 100% conversion temperature of ethanol was 230 ℃.Furthermore,once the conversion of ethanol started,the complete conversion was quickly achieved.The doping of Mn,Y and La led to better activity for ethanol combustion and lower temperature reduction peaks in TPR profiles.The doping of Mn resulted in enhanced oxygen storage capacity (OSC),larger area of the reduction peaks,and excellent reactivity,and the doping of Y resulted in the lowest reduction temperature and the best activity.
其他文献
A novel heterometallic complex[Na2Cu2Gd2(pdc)4(H2O)14·2H2O](Hapdc=1H-pyrazole-3,5-dicarboxylic acid)has been synthesized and characterized by IR spectra,elemen
Ultrafine austenite grains (UFAGs) with size of 1-5 μm were prepared through repet-itive treatment, four times, of rapid heating and quenching, and the growth
The adsorption of O and N atoms on the Ni(311) surface was investigated by the 5-parameter Morse potential(5-MP) method in detail. For the O-Ni(311) system, the
In the present research,a bubble dynamics based model for cavitating flow simulations is extended to higher void fraction region for wider range of applications
Effects of soft-magnetic MnZn ferrite (Mn0.3Zn0.5Fe2O4, MZF) and hard-magnetic Ba ferrite (BaO.6Fe2O3, BaM) on the structure and magnetic transport properties o
Various methods have been proposed for off-line permutation packet routing on a mesh. One of the methods is known as multistage routing, in which the first stag
Six new pleuromutilin derivatives were designed and synthesized, confirmed by MS, IR and 1H NMR techniques. And the antibacterial activities were primarily eval
In this article, the aptitude of natural gas as feedstock in steam reforming process for hydrogen production is compared with that of different liquid fuels (pu
The application of a double-face reinforced retaining wall during road construction can reduce engineering costs, speed road paving and have a good influence on
Oil reservoirs with secondary bottom water in Ng33 members (in Guantao formation, Paleogene system) of Lin2-6 fault block in Huimin depression (Bohai Bay Basin)