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Core-Shell Au@SnO2 Nanostructures Supported on Na2Ti4O9 Nanobelts as a Highly Active and Deactivation-Resistant Catalyst toward Selective Nitroaromatics Reduction
Pan, Xiaoyang; Zheng, Jing; Zhang, Liuxian; Yi, Zhiguo
2019-08-19
Source PublicationINORGANIC CHEMISTRY
ISSN0020-1669
Volume58Issue:16Pages:11164
SubtypeArticle
AbstractCatalysis using gold (Au) nanoparticles has become an important field of chemistry. However, activity loss caused by aggregation or leaching of Au nanoparticles greatly limits their application in catalytic reaction. Herein, we report a facile and green synthesis of a core-shell Au@SnO2 nanocomposite, exhibiting excellent activity toward selective nitroaromatics reduction under mild conditions. The core-shell Au@SnO2 nanocomposite (Au size = similar to 50 nm; shell thickness = ca. 16 nm) is conceived and validated by a direct redox reaction between HAuCl4 and SnF2. Optimization of the core size, shell thickness, and dispersion of Au@SnO2 has been introduced by an alkaline surface supported by negatively charged metal oxide Na2Ti4O9. The as-obtained Au-Sn-Na2Ti4O9 catalyst with much smaller Au cores (ca. 5 nm) and thinner SnO2 nondensed shells (ca. 4 nm) exhibits highly improved catalytic activities for nitro reduction compared to most of the known Au-based catalysts. Moreover, the core-shell Au@SnO2 structure inhibits the leaching and agglomeration of Au nanoparticles and thus leads to superior catalytic durability.
DOI10.1021/acs.inorgchem.9b01759
Language英语
WOS Research AreaChemistry
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26898
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Pan, Xiaoyang,Zheng, Jing,Zhang, Liuxian,et al. Core-Shell Au@SnO2 Nanostructures Supported on Na2Ti4O9 Nanobelts as a Highly Active and Deactivation-Resistant Catalyst toward Selective Nitroaromatics Reduction[J]. INORGANIC CHEMISTRY,2019,58(16):11164.
APA Pan, Xiaoyang,Zheng, Jing,Zhang, Liuxian,&Yi, Zhiguo.(2019).Core-Shell Au@SnO2 Nanostructures Supported on Na2Ti4O9 Nanobelts as a Highly Active and Deactivation-Resistant Catalyst toward Selective Nitroaromatics Reduction.INORGANIC CHEMISTRY,58(16),11164.
MLA Pan, Xiaoyang,et al."Core-Shell Au@SnO2 Nanostructures Supported on Na2Ti4O9 Nanobelts as a Highly Active and Deactivation-Resistant Catalyst toward Selective Nitroaromatics Reduction".INORGANIC CHEMISTRY 58.16(2019):11164.
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