Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1556894 | Journal of Materials Science & Technology | 2013 | 5 Pages |
Abstract
Ni/Carbon was prepared in two steps: initially cellulose as carbon source and NiCl2·6H2O as catalyst of the carbonization process were submitted to hydrothermal treatment at 200 °C and further to thermal treatment at 900 °C under argon atmosphere. The obtained material contains Ni nanoparticles with face-centered cubic (fcc) structure dispersed on amorphous carbon with graphitic domains. PtRu/C electrocatalysts (carbon-supported PtRu nanoparticles) were prepared by an alcohol-reduction process using Ni/Carbon as support. The materials were characterized by thermogravimetric analysis, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy and tested as anodes in single direct methanol fuel cell (DMFC). The performances of PtRu/C electrocatalysts using Ni/Carbon as support were superior to those obtained for PtRu/C using commercial carbon black Vulcan XC72 as support.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Chemistry
Authors
Marcelo Marques Tusi, Michele Brandalise, Nataly Soares de Oliveira Polanco, Olandir Vercino Correa, Antonio Carlos da Silva, Juan Carlo Villalba, Fauze Jaco Anaissi, Almir Oliveira Neto, Estevam Vitorio Spinacé,