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Preparation method and use of rare earth modified Keggin type heteropoly acid supported catalyst
Preparation method and use of rare earth modified Keggin type heteropoly acid supported catalyst
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机译：稀土改性Keggin型杂多酸负载催化剂的制备方法和用途
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摘要
To provide a method for preparing a rare-earth modified Keggin-type heteropolyacid-supported catalyst, which has high catalytic activity and is easy to be recovered for reuse.SOLUTION: There is provided a method for preparing a rare-earth modified Keggin-type heteropolyacid-supported catalyst, including the steps of: (1) dispersing a carbon nanotube, a metal chloride and a first acid solution into a first alcohol solvent to prepare a mixture, filtering and drying the mixture to obtain a hydroxylated carbon nanotube a filter cake; (2) dispersing a metal precursor; a second acid solution; a rare earth compound of at least one rare earth element of lanthanum, cerium, praseodymium, neodymium, promethium and samarium; a Keggin-type heteropolyacid; and the hydroxylated carbon nanotube into a second alcohol solvent to prepare a mixture solution; and (3) allowing the mixture solution to stand until a gel is formed, drying the gel to obtain a rare earth modified Keggin-type heteropolyacid-supported catalyst.SELECTED DRAWING: Figure 6
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