Along with the increasing life span, aging and related diseases have become a serious medical and social problem that has roused global attention. In this paper, under the guidance of traditional Chinese medicine (TC...Along with the increasing life span, aging and related diseases have become a serious medical and social problem that has roused global attention. In this paper, under the guidance of traditional Chinese medicine (TCM), the author raises a theory of "dysfunction of Sanjiao qi activity" based on the studies and discussions of classical literatures on Sanjiao theory by combining knowledge in modern integrative traditional Chinese and Western medicine for aging from his more than 30 years of experiences of clinical and experimental practices. The author also tries to explain the mechanisms for aging from the whole aspect of Sanjiao qi activity.展开更多
以正硅酸乙酯为硅源,合成了具有MFI结构的球形和六方片状silicalite-1全硅分子筛,并将其作为载体制备了负载型催化剂用于丙烷脱氢制丙烯反应;采用SEM、XRD、TEM、N_(2)吸附-脱附、Py-FTIR、NH_(3)-TPD、^(29)Si MAS NMR和H_(2)-TPR等方...以正硅酸乙酯为硅源,合成了具有MFI结构的球形和六方片状silicalite-1全硅分子筛,并将其作为载体制备了负载型催化剂用于丙烷脱氢制丙烯反应;采用SEM、XRD、TEM、N_(2)吸附-脱附、Py-FTIR、NH_(3)-TPD、^(29)Si MAS NMR和H_(2)-TPR等方法对两种分子筛载体及负载型催化剂的结构和表面性质进行表征,研究了不同形貌silicalite-1载体对催化剂性能的影响机制。实验结果表明,球形silicalite-1分子筛载体具有更大的外比表面积和更多的表面硅羟基,进而增强了活性组分与载体间的相互作用,提高了活性金属在载体表面的分散度,因此在丙烷脱氢制丙烯反应中球形silicalite-1载体负载的催化剂具有更高的活性。展开更多
基金Supported by the National Natural Science Foundation of China (No.30630074)Specialized Research Fund for the Doctoral Program of Higher Education (No.20060063006)+1 种基金Special Item of Science and Technology Research,Department of Education (No.207006)Special Item of Tianjin City (No.05YFGDSF02300)
文摘Along with the increasing life span, aging and related diseases have become a serious medical and social problem that has roused global attention. In this paper, under the guidance of traditional Chinese medicine (TCM), the author raises a theory of "dysfunction of Sanjiao qi activity" based on the studies and discussions of classical literatures on Sanjiao theory by combining knowledge in modern integrative traditional Chinese and Western medicine for aging from his more than 30 years of experiences of clinical and experimental practices. The author also tries to explain the mechanisms for aging from the whole aspect of Sanjiao qi activity.
文摘以正硅酸乙酯为硅源,合成了具有MFI结构的球形和六方片状silicalite-1全硅分子筛,并将其作为载体制备了负载型催化剂用于丙烷脱氢制丙烯反应;采用SEM、XRD、TEM、N_(2)吸附-脱附、Py-FTIR、NH_(3)-TPD、^(29)Si MAS NMR和H_(2)-TPR等方法对两种分子筛载体及负载型催化剂的结构和表面性质进行表征,研究了不同形貌silicalite-1载体对催化剂性能的影响机制。实验结果表明,球形silicalite-1分子筛载体具有更大的外比表面积和更多的表面硅羟基,进而增强了活性组分与载体间的相互作用,提高了活性金属在载体表面的分散度,因此在丙烷脱氢制丙烯反应中球形silicalite-1载体负载的催化剂具有更高的活性。