Synthesis of ordered mesoporous CuO/CeO2 composite via co-nanocasting replication method and its improved reactivity towards hydrogen

Liming Wan, Xiangzhi Cui, Hangrong Chen, Jianlin Shi

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Ordered mesoporous CuO/CeO2 composites with cubic Ia3d or 2-D hexagonal p6mm structure have been synthesized by a co-nanocasting-replication method using mesoporous silica KIT-6 or SBA-15 as hard template. XRD, TEM, N2-adsorption and H2-TPR techniques were used for the structural analysis and catalytic activity characterization. The results indicated that the high surface area mesoporous CuO/CeO2 composites with different amounts of CuO addition were well-crystallized and exhibited much improved reactivity towards hydrogen than pure mesoporous CeO2, and the CuO/CeO2 composite with 20 wt.% CuO addition possessed the highest reactivity towards hydrogen. The enhanced H2-TPR property could be attributed to the synergetic catalytic effects between copper oxide and cerium oxide.

Original languageEnglish
Pages (from-to)1379-1382
Number of pages4
JournalMaterials Letters
Volume64
Issue number12
DOIs
StatePublished - 30 Jun 2010
Externally publishedYes

Keywords

  • Casting
  • CuO/CeO composite
  • Mesoporous
  • Template

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