Correlation between carbon nanotube microstructure and their catalytic efficiency towards the p-coumaric acid degradation

被引：9
|
作者：
Fazio, E. [1 ]
Piperopoulos, E. [2 ]
Rahim, S. H. Abdul [2 ]
Lanza, M. [3 ]
Faggio, G. [4 ]
Mondio, G. [1 ]
Neri, F. [1 ]
Mezzasalma, A. M. [1 ]
Milone, C. [2 ]
Santangelo, S. [5 ]
机构：
[1] Univ Messina, Dept Phys & Earth Sci, I-98100 Messina, Italy
[2] Univ Messina, Dept Elect Engn Chem & Ind Engn, I-98100 Messina, Italy
[3] CNR, Inst Chem Phys Proc, Messina Sect, I-00185 Rome, Italy
[4] Mediterranea Univ, Dept Informat Engn Infrastruct & Sustainable Ener, Reggio Di Calabria, Italy
[5] Mediterranea Univ, Dept Civil Engn Energy Environm & Mat, Reggio Di Calabria, Italy
来源：
CURRENT APPLIED PHYSICS | 2013年 / 13卷 / 04期
关键词：
Carbon nanotube; CVD; Structural properties; X-ray photoemission spectroscopy; Raman spectroscopy; Catalysis; WET AIR OXIDATION; ENERGY-LOSS SPECTRA; SPECTROSCOPY;
D O I：
10.1016/j.cap.2012.11.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Pristine and annealed multi-walled C nanotubes are preliminarily tested as catalysts towards the degradation of p-coumaric acid with better performances than the widely used activated carbon. In order to clarify the origin of their different catalytic efficiency, the samples are analysed by means of high-resolution transmission electron microscopy, X-ray photoemission, reflection electron energy loss and micro-Raman spectroscopy. Chemical composition, mass density, bonding configurations and threefold- to fourfold-coordinated carbon bonding ratios are determined. The comparative discussion of the results obtained leads to attribute the higher catalytic activity of the pristine nanotubes to their larger sp(2)/sp(3) carbon bonding fraction and greater amount of oxygen containing functional groups. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：748 / 752
页数：5
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