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

页码：748 / 752

页数：5