J. Mater. Sci. Technol. ›› 2013, Vol. 29 ›› Issue (8): 747-751.DOI: 10.1016/j.jmst.2013.05.004

Previous Articles     Next Articles

Ni/Carbon Hybrid Prepared by Hydrothermal Carbonization and Thermal Treatment as Support for PtRu Nanoparticles for Direct Methanol Fuel Cell

Marcelo Marques Tusi1), Michele Brandalise2), Nataly Soares de Oliveira Polanco2) , Olandir Vercino Correa2), Antonio Carlos da Silva2), Juan Carlo Villalba3), Fauze Jaco Anaissi3) , Almir Oliveira Neto2), Estevam Vitorio Spinacé2)   

  1. 1) Universidade Regional Integrada do Alto Uruguai e das Missões -URI, Av. Batista Bonoto Sobrinho, s/n, São Vicente, 97700-000 Santiago, RS, Brazil
    2) Instituto de Pesquisas Energéticas e Nucleares-IPEN/CNEN-SP, Av. Prof. Lineu Prestes, 2242, Cidade Universitária, 05508-900 São Paulo, SP, Brazil
    3) Universidade Estadual do Centro-Oeste-UNICENTRO, R. Simeão Varela de Sá 03, Vila Carli, 85040-080 Guarapuava, PR, Brazil
  • Received:2012-08-12 Revised:2012-12-21 Online:2013-08-30 Published:2013-07-17
  • Contact: Marcelo Marques Tusi
  • Supported by:

    CNPq, FAPESP and FINEP-MCT-ProH2 for financial support.

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.

Key words: Cellulose, Hydrothermal carbonization, Alcohol-reduction process, PtRu/C electrocatalysts, Direct methanol fuel cell