Author(s): 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 Spinac~ ) 1) Universidade Regional Integrada do Alto Uruguai e das Missoes-URI, Av.Batista Bonoto Sobrinho, s/n, Sao Vicente, 97700-000 Santiago, RS, Brazil 2) Instituto de Pesquisas Energticas e Nucleares-IPEN/CNEN-SP, Av.Prof.Lineu Prestes, 2242, Cidade Universitria, 05508-900 Sao Paulo, SP, Brazil 3) Universidade Estadual do Centro-Oeste-UNICENTRO, R.Simeao Varela de S 03, Vila Carli, 85040-080 Guarapuava, PR, Brazil
Pages: 747-751
Year: 2013 Issue:  8
Journal: Journal of Materials Science & Technology
Keyword:  Cellulose; Hydrothermal carbonization; Alcohol-reduction process; PtRu/C electrocatalysts; Direct methanol fuel cell;
Abstract: <正>Ni/Carbon was prepared in two steps:initially cellulose as carbon source and NiCI₂·6H20 as catalyst of the carbonization process were submitted to hydrothermal treatment at 200℃and further to thermal treatment at 900℃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 FtRu/C using commercial carbon black Vulcan XC72 as support.