Abstract Understanding the structure-property relationships of functional materials with changing nanostructures is essential for their practical applications. In this work, the nanorods-decorated electrospun nanofibers underwent a morphology evolution upon simple thermal treatment. The nanorods became short, and finally round with the increasing thermal treating time. As results of the morphology evolution, the SERS properties and the catalytic properties of the changing nanostructures showed different trends. The SERS activity firstly increased and then decreased with the thermal treating time. However, the catalytic property decreased with the thermal treating time. The revealed connections between the practical performance and the morphology evolution might be helpful for the control of functionality of nanomaterials under certain conditions.

中文翻译：

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电纺纳米纤维装饰纳米棒的形态演化及其在 SERS 和催化中的应用

摘要 了解具有变化纳米结构的功能材料的结构-性能关系对其实际应用至关重要。在这项工作中，纳米棒装饰的电纺纳米纤维在简单的热处理后经历了形态演变。随着热处理时间的增加，纳米棒变短并最终变圆。作为形貌演变的结果，SERS特性和不断变化的纳米结构的催化特性表现出不同的趋势。随着热处理时间的延长，SERS 活性先升高后降低。然而，催化性能随着热处理时间的延长而降低。所揭示的实际性能与形态演变之间的联系可能有助于在某些条件下控制纳米材料的功能。