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

作　　者：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 

机构地区：[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 Energticas e Nucleares-IPEN/CNEN-SP,Av.Prof.Lineu Prestes,2242,Cidade Universitria,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

出　　处：《Journal of Materials Science & Technology》2013年第8期747-751,共5页材料科学技术（英文版）

基　　金：CNP_q,FAPESP;FINEP-MCT-ProH_2 for financial support

摘　　要：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 ℃ 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 PtRu/C using commercial carbon black Vulcan XC72 as support.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 ℃ 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 PtRu/C using commercial carbon black Vulcan XC72 as support.

关 键 词：CELLULOSE Hydrothermal carbonization Alcohol-reduction process PtRu/C electrocatalysts Direct methanol fuel cell 

分 类 号：TM911.4[电气工程—电力电子与电力传动]