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为避免有机聚合物因热稳定性差而不能用高温氢气还原金属制备聚合物负载催化剂的弱点,采用溶剂化金属原子浸渍法在温和的条件下直接把零价金属负载在聚合物上,制备了几种不同金属含量的CoAg催化剂,用X- 射线衍射,X- 射线光电子能谱和磁测定对催化剂进行表征并和普通浸渍法制得的相同金属含量的催化剂进行比较,表明溶剂化金属原子浸渍法制得催化剂的金属粒度小于普通浸渍法制得的催化剂,而且前者的零价金属含量也高于后者。溶剂化金属原子浸渍法制得的催化剂Co 在表面上,而普通浸渍法制得催化剂Co 在表面和体相的金属含量基本相同。
In order to avoid weakness of the organic polymer due to poor thermal stability and inability to reduce the metal with high temperature hydrogen to prepare the polymer-supported catalyst, a solvate metal atom impregnation method was used to directly load the zero-valent metal onto the polymer under mild conditions Co-Ag catalysts with different metal contents were characterized by X-ray diffraction, X-ray photoelectron spectroscopy and magnetic measurements and compared with the same metal content catalysts prepared by the conventional impregnation method, indicating that solvated metal atom impregnation The legal system catalyst metal particle size smaller than the ordinary impregnation catalyst, and the former zero-valent metal content is also higher than the latter. Solute metal atom impregnation catalyst Co prepared on the surface, while the ordinary impregnation catalyst Co in the metal surface and bulk metal content is basically the same.