固载Ru基催化剂上二氧化碳加氢合成甲酸
Silica Immobilized Ruthenium Catalyst for Formic Acid Synthesis from Supercritical Carbon Dioxide Hydrogenation Ⅱ: Effect of Reaction Conditions on the Catalyst Performance
考察了在不同反应条件对二氧化硅固载的钌基催化剂上二氧化碳加氢合成甲酸反应活性的影响。结果表明，当二氧化碳处于超临界状态，氢压4.0MPa，反应温度80℃以及PPh3/Ru为6：1时，甲酸的转化频率（TOF）可达1481.5h-1。固载钌基催化剂的催化性能优于相应的均相钌催化剂，而且具有易于分离和重复使用等优点。
he synthesis of formic acid from carbon dioxide and hydrogen using a silica immobilized ruthenium catalyst as precursor has been studied in different reaction conditions. The results revealed that the TOF of HCOOH achieved 1481.5 h-1 on immobilized ruthenium catalyst near the critical pressure point of CO2 with H2 pressure of 4.0 MPa, reaction temperature of 80 ℃ and PPh3/Ru ratio of 6:1. The reaction activity of immobilized catalyst was higher than that of homogeneous catalyst, and the immobilized catalyst also offered the practical advantages such as easy separation and reuse.
张一平、于英民、郑小明、费金华
精细化学工业
固载，钌，甲酸，二氧化碳，超临界
immobilized ruthenium formic acid carbon dioxide supercritical
张一平,于英民,郑小明,费金华.固载Ru基催化剂上二氧化碳加氢合成甲酸[EB/OL].(2005-10-11)[2025-07-20].http://www.paper.edu.cn/releasepaper/content/200510-103.点此复制
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