采用柠檬酸溶胶 凝胶法制备的Ce Zr La O固溶体为载体,制备CuO Ce Zr La O催化剂,用XRD,Raman,TPR等实验技术对Ce Zr La O固溶体及CuO Ce Zr La O的物相、Redox性能进行了表征。实验结果表明,Ce0.7Zr0 3-yLayO固溶体的还原性能与La含量...采用柠檬酸溶胶 凝胶法制备的Ce Zr La O固溶体为载体,制备CuO Ce Zr La O催化剂,用XRD,Raman,TPR等实验技术对Ce Zr La O固溶体及CuO Ce Zr La O的物相、Redox性能进行了表征。实验结果表明,Ce0.7Zr0 3-yLayO固溶体的还原性能与La含量有关,适量的La能促进固溶体的氧化还原。CuO的负载量为6%时,CuO Ce0.7Zr0.15La0.15O的活性最高,高分散且与载体相互作用的CuO是CO氧化活性相。展开更多
The Li 2Mg x Zn 1- x SiO 4 ( x =0 2-0 8) single phase ion conductor materials were prepared by the sol gel method.The powder samples were characterized by TG DTA﹑ XRD and TEM.Ionic conductivity of the sinter was dete...The Li 2Mg x Zn 1- x SiO 4 ( x =0 2-0 8) single phase ion conductor materials were prepared by the sol gel method.The powder samples were characterized by TG DTA﹑ XRD and TEM.Ionic conductivity of the sinter was determined by means of AC impedance technique The experiment showed that the heating temperature was only 800℃ for the samples prepared by the sol gel method with the average particle size of 100nm,and it has successfully reduced by 350℃ compared with the traditional solid reaction method Ionic conductivity of the materials could be improved by the double doped system of Mg。展开更多
文摘采用柠檬酸溶胶 凝胶法制备的Ce Zr La O固溶体为载体,制备CuO Ce Zr La O催化剂,用XRD,Raman,TPR等实验技术对Ce Zr La O固溶体及CuO Ce Zr La O的物相、Redox性能进行了表征。实验结果表明,Ce0.7Zr0 3-yLayO固溶体的还原性能与La含量有关,适量的La能促进固溶体的氧化还原。CuO的负载量为6%时,CuO Ce0.7Zr0.15La0.15O的活性最高,高分散且与载体相互作用的CuO是CO氧化活性相。
文摘The Li 2Mg x Zn 1- x SiO 4 ( x =0 2-0 8) single phase ion conductor materials were prepared by the sol gel method.The powder samples were characterized by TG DTA﹑ XRD and TEM.Ionic conductivity of the sinter was determined by means of AC impedance technique The experiment showed that the heating temperature was only 800℃ for the samples prepared by the sol gel method with the average particle size of 100nm,and it has successfully reduced by 350℃ compared with the traditional solid reaction method Ionic conductivity of the materials could be improved by the double doped system of Mg。
