使用针尖增强拉曼光谱法对催化活性进行纳米级映射。
Nanoscale mapping of catalytic activity using tip-enhanced Raman spectroscopy.
作者信息
Kumar N, Stephanidis B, Zenobi R, Wain A J, Roy D
机构信息
Analytical Science Division, National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, UK.
出版信息
Nanoscale. 2015 Apr 28;7(16):7133-7. doi: 10.1039/c4nr07441f.
PMID:25699648
Abstract
Chemical mapping of a photocatalytic reaction with nanoscale spatial resolution is demonstrated for the first time using tip-enhanced Raman spectroscopy (TERS). An ultrathin alumina film applied to the Ag-coated TERS tip blocks catalytic interference whilst maintaining near-field electromagnetic enhancement, thus enabling spectroscopic imaging of catalytic activity on nanostructured Ag surfaces.
摘要
首次利用针尖增强拉曼光谱（TERS）展示了具有纳米级空间分辨率的光催化反应的化学图谱。应用于涂银TERS针尖的超薄氧化铝膜可阻断催化干扰，同时保持近场电磁增强，从而能够对纳米结构银表面的催化活性进行光谱成像。
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