【摘要】 用溶剂化金属原子浸渍技术制备了高分散树脂固载Co -Ag双金属催化剂。研究了这些催化剂在二丙酮醇加氢和用作燃料电池电极时的催化性质。与普通浸渍法制备的相同组成的催化剂相比 ,溶剂化金属原子浸渍催化剂显示出更高的活性。这是因为溶剂化金属原子浸渍催化剂具有更高的分散性和金属的还原度 (零价金属百分比 )。研究结果还表明随着金属含量的增加催化活性增大 ,在电催化反应中钴的加入增大了银的催化活性。更多还原

【Abstract】 The solvated metal atom impregnation(SMAI) technique was used to prepare highly dispersed Co-Ag/D-72 bimetallic catalyst immobilized on D-72 resin. The catalytic properties of these catalysts in hydrogenation of diacetone alcohol and their electric catalytic properties as a fuel cell electrode were studied. Compared with the conventional impregnation (CI) Co-Ag/D-72 catalysts ,the SMAI catalyst showed much greater activity for these reaction. The high activity of SMAI catalyst is attributed to the high dispersity and reductivity of metal (high percentage of metal in zero-valent state). The result of the studies also indicated that as the metal content increased, the catalytic activity of Ag increased with the incorporation of cobalt.更多还原