CNx nanotubes as catalyst support to immobilize platinum nanoparticles for methanol oxidation

• Published in: Journal of materials chemistry Vol. 18; no. 15; pp. 1747 - 1750
• Main Authors: Yue, Bing, Ma, Yanwen, Tao, Haisheng, Yu, Leshu, Jian, Guoqiang, Wang, Xizhang, Wang, Xiaoshu, Lu, Yinong, Hu, Zheng
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 01.01.2008
• Subjects: Catalysis; Catalysts: preparations and properties; Chemistry; Exact sciences and technology; General and physical chemistry; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Particle size; Nanoparticle; Carbon nanotubes; X ray diffraction; Supported catalyst; Surface treatment; Cyclic voltammetry; Experimental result; Transmission electron microscopy; Platinum; Carbon nitrides; Oxidation; Catalyst activity; Nanostructured materials; Fuel cell; Methanol; X-ray photoelectron spectra; Catalyst support
• ISSN: 0959-9428; 1364-5501
• DOI: 10.1039/b718283j

Pt nanoparticles with sizes of 3-9 nm were well dispersed on carbon nitride (CNx) nanotubes without needing pre-surface modification on the CNx nanotubes due to the inherent chemical activity. The products were characterized by transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. All the experimental results revealed that Pt nanoparticles were immobilized on the CNx nanotubes due to the N-participation in the connection of Pt species with the support. The electrocatalytic property of the as-prepared Pt/CNx catalyst in methanol oxidation was examined by cyclic voltammetry. The results reveal that the so-constructed Pt/CNx catalyst has obvious catalytic activity, suggesting potential applications in fuel cells.