Immobilization of RuO2 on Carbon Nanotube: An X-ray Absorption Near-Edge Structure Study

The electronic structures of carbon nanotube/RuO2 core/shell nanocomposite (RuO2 thin layer coated multiwalled carbon nanotubes (MWNTs)) have been studied by X-ray absorption near-edge structures (XANES) at C K-edge, O K-edge, and Ru M5,4- and L3-edges. The variation in white-line features of the XA...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physical chemistry. C 2009-06, Vol.113 (24), p.10747-10750
Main Authors: Zhou, J. G, Fang, H. T, Hu, Y. F, Sham, T. K, Wu, C. X, Liu, M, Li, F
Format: Article
Language:English
Subjects:
C: Surfaces, Interfaces, Catalysis
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The electronic structures of carbon nanotube/RuO2 core/shell nanocomposite (RuO2 thin layer coated multiwalled carbon nanotubes (MWNTs)) have been studied by X-ray absorption near-edge structures (XANES) at C K-edge, O K-edge, and Ru M5,4- and L3-edges. The variation in white-line features of the XANES at these edges supports strongly that RuO2 interacts with MWNTs through Ru−O−C bonding, which also results in charge redistribution between C 2p-derived states in MWNT and the conduction band in RuO2. Such chemical bonding is necessary to immobilize RuO2 on MWNT and ensures good conductivity of MWNT/RuO2 core/shell nanocomposite.
ISSN:1932-7447
1932-7455
DOI:10.1021/jp902871b