Au/Co3O4/CeO2 heterostructures: Morphology controlling, junction formation and enhanced catalysis performance

作者：Yang, Ping^*; Liu, Yunshi

来源：Journal of Industrial and Engineering Chemistry, 2017, 53: 317-324.

DOI：10.1016/j.jiec.2017.05.002

• Fiber
• Co3O4
• CeO2
• Heterostructure
• Catalysis

Co3O4 nanochain and Co3O4/CeO2 heterostructures were prepared via an electrospinning process and subsequent calcination. The formation and shape evolution from Co3O4 nanochains to Co3O4/CeO2 composite nanobelts were investigated, suggesting that both components and preparation parameters play important roles in resulted morphology and properties. Homogeneous Co3O4/CeO2 junctions in belt samples were formed towards enhanced catalysis performance. Well-dispersed Au nanoparticles were deposited on Co3O4/CeO2 composite nanostructures or doped inside through reduction and direct calcination route method, respectively. The loading of Au nanoparticles significantly enhanced catalytic performance with onset CO conversion at 100 degrees C and resulted in CO conversion over at 127 degrees C.

• 出版日期2017-9-25
• 单位济南大学