搜索结果: 1-2 共查到“化学 catalytic activity”相关记录2条 . 查询时间(0.125 秒)
Immobilization of 12-Tungstophosphoric Acid on AlSBA-15 and Its Catalytic Activity for Acetylation
heteropoly acid mesopore AlSBA15 anisole propionic anhydride propionylation
2009/9/15
12-Tungstophosphoric heteropoly acid (TPA) with a Keggin structure was introduced into Al-incorporated mesoporous molecular sieves (AlSBA-15) by the incipient wetness method. The materials were charac...
高分散度Pt-Ir疏水催化剂制备及氢-水液相交换催化性能研究(Highly Dispersed Pt-Ir Hydrophobic Catalysts: Preparation and Catalytic Activity for Hydrogen-water Liquid Exchange Reaction)
疏水催化剂 氢-水液相催化交换 氢同位素分离 微波加热法 Pt-Ir/C
2010/8/18
用乙二醇作为碳黑分散溶剂,微波辐射快速加热,1~2 MPa压力下制备了Pt/C及不同Pt、Ir比例的Pt-Ir/C催化剂,用浸渍还原法制备了Pt-Ir/C催化剂,并用XRD,TEM和XPS对催化剂进行了表征。将两种方法制备的Pt/C,Pt-Ir/C催化剂与聚四氟乙烯(PTFE)一起负载于多孔金属载体,得到疏水催化剂,考查了其对氢-水液相交换反应的催化活性。微波辐射加热法制备的Pt/C和Pt-Ir...