树枝状桥联过渡金属催化剂的合成、表征与性能.pdfVIP

学兔兔 化 工 进 展 · 322· CHEMICAL INDUSTRY AND ENGINEERING PROGRESS 201 1年第30卷第2期 树枝状桥联过渡金属催化剂的合成、表征与性能 王 俊，张 鹏，李翠勤，李 杰 (东北石油大学化学化工学院石油与天然气化工省重点实验室，黑龙江 大庆 163318) 摘 要：以1，0代聚酰胺一胺(PAMAM)与水杨醛为原料，通过席夫碱反应合成一类新型树枝状水杨醛亚胺配体， 并进一步与铜、锌，镍络舍得到 3种树枝状桥联过渡金属催化剂；采用元素分析、红外光谱、核磁共振光谱和 紫外光谱分析手段对树枝状配体及树枝状桥联催化剂的结构进行了表征，同时考察了催化荆对分解双氧水反应 的催化性能。结果表明，树枝状配体及树枝状桥联催化刺的结构与理论结构相符，且 3种催化剂对双氧水分解 均具有较高的催化活性。 关键词：树枝状配体；树枝状催化剂；席夫碱反应；表征；催化性能 中图分类号：0 641．4；O 643-3 文献标志码：A 文章编号：1000—6613(2011)02—0322—05 Synthesis，characterization and properties of dendritic transition metal catalysts WANGJun，ZHANGPeng，LICuiqin，LIJie (Provincial Key Laboratory of Oil＆Gas Chemical Technology，School of Chemistry＆Chemical Engineering， Northeast Petroleum University，Daqing 16331 8，Heilongjiang，China) Abstract： A new kind of dendritic．salicylaldehydeimine ligand was synthesized from 1．0G polyamidoamine and salicylaldehyde through the Schiff reaction，and further three kinds of dendritic tfansition metal catalysts were formed by complexing the dendritic ligand with Cu，Zn and Ni．The structure of the dendritic ligand and the derived catalysts was characterized by elemental allalysis， ， NMR and UV The catalysis of dendritic catalysts for decomposition of hydrogen peroxide was also studied．The results showed that the structures of dendritic 1igand and the derived catalysts were consistent with the theoretical structures，and al1 the three kinds of dendritic catalysts had high catalytic activity to the decomposition of hydrogen p