摘要
A hollow-fiber-supported stable Au/FAU catalytic membrane was successfully synthesized through a polydopamine coating modification-removal strategy and used as a flow-through catalytic membrane reactor for preferential oxidation of CO.Small Au nanoparticles can be efficiently isolated by dopamine and the dopamine-derived carbon shells.The interactions between Au nanoparticles and zeolite layer support are enhanced during annealing at high temperature under an inert atmosphere.A zeolite membrane supported Au nanoparticle catalyst was obtained after the removal of carbon shells,which showed high catalytic activity and stability for the removal of CO from hydrogen.
A hollow-fiber-supported stable Au/FAU catalytic membrane was successfully synthesized through a polydopamine coating modification-removal strategy and used as a flow-through catalytic membrane reactor for preferential oxidation of CO. Small Au nanoparticles can be efficiently isolated by dopamine and the dopamine-derived carbon shells. The interactions between Au nanoparticles and zeolite layer support are enhanced during annealing at high temperature under an inert atmosphere. A zeolite membrane supported Au nanoparticle catalyst was obtained after the removal of carbon shells, which showed high catalytic activity and stability for the removal of CO from hydrogen.
基金
Supported by the National Natural Science Foundation of China(21490585,21606126,21176117)
National High-tech Research and Development Program of China(2015AA03A602)
the Outstanding Young Fund of Jiangsu Province(BK2012040)
the“Six Top Talents”and“333 Talent Project”of Jiangsu Province,State Key Laboratory of Materials-Oriented Chemical Engineering(ZK201719)
the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,Jilin University(2018-19).
