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In Situ Grown Monolithic Au/TiO2 Catalysts on Flexible Ti Mesh for Efficient Low-Temperature CO Oxidation
Wang, Ke; Liu, Xiaoyuan; Tang, Xinyue; Jin, Xin; Yang, Wenjin; Wang, Junchao; Li, Jing; Zhang, Xinglai; Liu, Baodan
2020-07-01
Source PublicationADVANCED MATERIALS TECHNOLOGIES
Volume5Issue:7
AbstractThe development of advanced catalyst integration strategy is of great importance and promising for long-term and stable gas catalysis in environmental processing. However, conventional catalyst fabrication techniques including spray method and spin coating cannot overcome the key problems of catalyst peeling off from substrate and related severe performance degradation. In this work, an in situ integration strategy of monolithic Au/TiO2 catalysts on Ti mesh for efficient and stable low-temperature CO oxidation is reported. Plasma electrolytic oxidation technology can create a porous TiO2 seeding layer with strong substrate adherence. Subsequent hydrothermal reaction, ion exchange, and calcination processes can induce the in situ nucleation of sodium titanate nanosheets and their follow-up conversion to TiO2 nanosheets with huge surface area. The oxygen defects generated in anatase TiO2 nanosheet supports can not only provide sufficient anchoring sites for the deposition and attachment of gold nanoparticles (Au NPs) during deposition-precipitation process, but also absorb and activate oxygen species. Meanwhile, the strong interactions between Au NPs and TiO2 support make the catalysts more chemically active. As a result, the Au/TiO2 monolithic catalysts can eliminate CO completely at low temperature and exhibit considerably high stability, suggesting their potential in practical applications.
DOI10.1002/admt.202000115
WOS IDWOS:000531590400001
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/155700
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang, Ke,Liu, Xiaoyuan,Tang, Xinyue,et al. In Situ Grown Monolithic Au/TiO2 Catalysts on Flexible Ti Mesh for Efficient Low-Temperature CO Oxidation[J]. ADVANCED MATERIALS TECHNOLOGIES,2020,5(7).
APA Wang, Ke.,Liu, Xiaoyuan.,Tang, Xinyue.,Jin, Xin.,Yang, Wenjin.,...&Liu, Baodan.(2020).In Situ Grown Monolithic Au/TiO2 Catalysts on Flexible Ti Mesh for Efficient Low-Temperature CO Oxidation.ADVANCED MATERIALS TECHNOLOGIES,5(7).
MLA Wang, Ke,et al."In Situ Grown Monolithic Au/TiO2 Catalysts on Flexible Ti Mesh for Efficient Low-Temperature CO Oxidation".ADVANCED MATERIALS TECHNOLOGIES 5.7(2020).
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