Au-Functionalized Hematite Hybrid Nanospindles: General Synthesis, Gas Sensing and Catalytic Properties
Au-Functionalized Hematite Hybrid Nanospindles: General Synthesis, Gas Sensing and Catalytic Properties
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Au 功能化赤铁矿混合纳米纺锤：一般合成、气体传感和催化性能
DOI：
10.1021/jp110421v
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发表时间：
2011-03
影响因子：
3.7
通讯作者：
中科院分区：
文献类型：
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作者：
杂化纳米材料结合了不同组分的性质，具有多种功能，具有重要的科学意义和实用价值。在这项工作中，一个有效的，绿色，和一般的策略已经发展到制造Au（Pt）功能化的α-Fe 2 O3混合纳米纺锤体。通过XRD/TEM/XPS对杂化纳米结构的形貌、结构和组成进行了表征。受Au和α-Fe 2 O3独特功能的启发，我们将Au/α-Fe 2 O3杂化纳米纺锤体作为多功能纳米材料应用于气敏和CO氧化。结果表明，与纯α-Fe 2 O3相比，经Au纳米粒子功能化后的杂化纳米纺锤体具有更高的催化活性，具有很大的多功能应用潜力。
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 α-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 α-Fe2O3, we have applied the Au/α-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 α-Fe2O3, indicating a great potential for multifunctional applications.