以泡沫镍为基底的纳米级Pt/NiCo制备及其表征

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牛淑妍，崔欢欢

（青岛科技大学化学与分子工程学院，山东青岛266042）

摘要： 利用电化学沉积技术，采用两步法成功制备了一种分层结构的Pt/NiCo结构。首先，以三维的泡沫镍为基底，利用电化学沉积技术在泡沫镍的表面上获得纳米级的NiCo晶体。第二步，将已获得的NiCo晶体与前驱体Pt进行反应形成Pt/NiCo结构。以毫米级的三维泡沫镍为基底获得高表面积的纳米级等级Pt/NiCo结构。通过三维视频显微镜、扫描电子显微镜（SEM）、能谱（EDS）、X射线衍射分析（XRD）等对不同电位下获得的Pt/NiCo结构的形貌结构、组分与元素分布以及晶型进行了表征。

关键词：电化学沉积法；泡沫镍；Pt/NiCo晶体

中图分类号：O 657.32文献标志码：A

引用格式：牛淑妍， 崔欢欢.以泡沫镍为基底的纳米级Pt/NiCo制备及其表征\[J\].青岛科技大学学报（自然科学版），2017，38（3）：47-51.

NIU Shuyan, CUI Huanhuan. Preparation and characterization nanoscale Pt/NiCo grown on 3D Ni foam\[J\].Journal of Qingdao University of Science and Technology（Natural Science Edition),2017,38(3)：47-51.

Preparation and Characterization Nanoscale Pt/NiCo Grown on 3D Ni Foam

NIU Shuyan, CUI Huanhuan

(College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)

Abstract: A metallic hierarchical structure is achieved via a two-step electrochemical approach. First, NiCo is electrodeposited onto a three-dimensional (3D) Ni foam for roughening the foam surface to nanoscale, so that the active area will be enlarged. Second, the asgrown NiCo reacts with Pt precursor to form Pt/NiCo. The as-formed structure spans millimeter to nanometer, which can be firmly regarded as a novel structure having high surface area. Morphology, structure, component and element distribution of the products were characterized by three-dimensional video microscope, scanning electron microscope(SEM), energy dispersive spectrometer (EDS) and X-ray diffraction (XRD) techniques.

Key words: electrochemical deposition; nickel foam; Pt/NiCo crystal

收稿日期：2015-11-24

作者简介：牛淑妍（1963—），女，教授.

文章编号：16726987（2017）03004705； DOI： 10.16351/j.1672-6987.2017.03.009