Au-Functionalized Hematite Hybrid Nanospindles: General Synthesis, Gas Sensing and Catalytic Properties

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• 作者：Jun Zhang ; Xianghong Liu ; Liwei Wang ; Taili Yang ; Xianzhi Guo ; Shihua Wu ; Shurong Wang ; Shoumin Zhang
• 刊名：Journal of Physical Chemistry C
• 出版年：2011
• 出版时间：April 7, 2011
• 年：2011
• 卷：115
• 期：13
• 页码：5352-5357
• 全文大小：976K
• 年卷期：v.115,no.13(April 7, 2011)
• ISSN：1932-7455

文摘

Hybrid nanomaterials combining the properties of different compositions, which may exhibit multiple functions, are of great significance from both scientific and practical perspectives. In this work, an efficient, green, and general strategy has been developed to fabricate Au(Pt)-functionalized 伪-Fe₂O₃ hybrid nanospindles. The morphology, structure, and composition of the hybrid nanostructures were characterized by means of XRD/TEM/XPS. Inspired by the unique functions of Au and 伪-Fe₂O₃, we have applied the Au/伪-Fe₂O₃ hybrid nanospindles as a multifunctional nanomaterial for gas sensing and CO oxidation. The obtained results demonstrate that, after functionalization with Au nanoparticles, the hybrid nanospindles exhibit much higher activity for both applications compared to pristine 伪-Fe₂O₃, indicating a great potential for multifunctional applications.