PVP-coated iron nanocrystals: Anhydrous synthesis, characterization, and electrocatalysis for two species

被引：26
作者：
Guo, Lin
Huang, Qun-Jian
Li, Xiao-Yuan [1 ]
Yang, Shihe
机构：
[1] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China
[2] Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[3] Inst Mol Technol Drug Discovery & Synthesis, Open Lab Chem Biol, Hong Kong, Hong Kong, Peoples R China
来源：
LANGMUIR | 2006年 / 22卷 / 18期
关键词：
ASSEMBLED MONOLAYER COATINGS; ENHANCED RAMAN-SCATTERING; AMORPHOUS IRON; ELECTROPHORETIC DEPOSITION; FE NANOPARTICLES; NITRIC-OXIDE; SIZE CONTROL; CLUSTERS; FILMS; SPECTROSCOPY;
D O I：
10.1021/la060975i
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report the synthesis of Fe nanocrystals (similar to 9 nm) in an anhydrous media, formamide, using poly(N-vinyl-2pyrrolidone) (PVP) as a protecting agent. The morphology, structure, and composition of the PVP-coated Fe nanocrystals are studied by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and FT-Raman spectroscopy. The surface properties of the PVP-coated Fe nanocrystals are studied by electrochemistry and micro-surface- enhanced Raman scattering (mSERS) using pyridine as a probing molecule. The PVP-coated Fe nanocrystals, when immobilized on an electrode substrate, display very good electrocatalytic activities in the selective reduction of H2O2 in the presence of oxygen and in the oxidation of NO.
引用
收藏
页码：7867 / 7872
页数：6
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