Engineering the epitaxial interface of Pt-CeO_2 by surface redox reaction guided nucleation for low temperature CO oxidation
查看参考文献47篇
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文摘
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The interface between metal nanoparticles (NPs) and support plays a vital role in catalysis because both electron and atom exchanges occur across the metal-support interface. However, the rational design of interfacial structure facilitating the charge transfer between the neighboring parts remains a challenge. Herein, a guided nucleation strategy based on redox reaction between noble metal precursor and supportsurface is introduced to construct epitaxial interfaces between Pt NPs and CeO_2 support. The Pt/CeO_2 catalyst exhibits near room temperature catalytic activity for CO oxidation that is benefited from the well-defined interface structure facilitating charge transfer from CeO_2 support to Pt NPs. Meanwhile, this general approach based on support-surface-induced-nucleation was successfully extended to synthesize Pd and Cu nanocatalysts on CeO_2, demonstrating its universal and feasible characteristics. This work is an important step towards developing highly active supported metal catalysts by engineering their interfaces. |
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来源
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Journal of Materials Science & Technology
,2020,40:39-46 【核心库】
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DOI
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10.1016/j.jmst.2019.08.036
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关键词
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CO oxidation
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Electronic metal-support interaction
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Support surface induced nucleation
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Metal-oxide interface
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地址
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1.
School of Materials Science and Engineering, Northeastern University, Key Lab for Anisotropy and Texture of Materials (MoE), Shenyang, 110819
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Research Center for Metallic Wires, Northeastern University, Shenyang, 110819
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Institute of Microscale Optoelectronics (IMO), Shenzhen University, Shenzhen, 518060
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Shenyang Dongchuang Precious Metal Materials Co., Ltd, Shenyang, 110819
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1005-0302 |
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学科
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化学;一般工业技术 |
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基金
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国家自然科学基金
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the Fundamental Research Funds for the Central Universities
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the Key Lab for ATM of Northeastern University (China) and the Natural Science Foundation of Shenzhen University
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文献收藏号
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CSCD:6664531
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