Synthesis of Ti4O7 Nanoparticles by Carbothermal Reduction Using Microwave Rapid HeatingReport as inadecuate


Synthesis of Ti4O7 Nanoparticles by Carbothermal Reduction Using Microwave Rapid Heating


Synthesis of Ti4O7 Nanoparticles by Carbothermal Reduction Using Microwave Rapid Heating - Download this document for free, or read online. Document in PDF available to download.

Department of Engineering, Tohoku University, 6-6-07, Aoba Aramaki, Sendai 980-8579, Miyagi, Japan





*

Author to whom correspondence should be addressed.



Abstract The polymer electrolyte fuel cell PEFC is an attractive power generation method from the perspective of environmental protection. Carbon is usually used as a catalyst support in PEFC, but it is oxidized under high electrical potential conditions. Ti4O7 is expected as a new catalyst support because of its high electrical conductivity and chemical resistivity. Though Ti4O7 as a catalyst support must have a high specific surface area for a high performance, it is difficult to synthesize nanostructured Ti4O7. In this research, Ti4O7 nanoparticles with a size of about 60 nm were synthesized by carbothermal reduction of TiO2 nanoparticles with polyvinylpyrrolidone carbon source using 2.45 GHz microwave irradiation. The experiment condition was at 950 °C for 30 min and the samples synthesized by conventional heating showed a grain growth. The findings of this study suggest that microwave processing can drastically reduce the total processing time for the synthesis of nanostructured Ti4O7. View Full-Text

Keywords: Ti4O7; nanoparticles; catalyst support; polymer electrolyte fuel cell; microwave heating; carbothermal reduction Ti4O7; nanoparticles; catalyst support; polymer electrolyte fuel cell; microwave heating; carbothermal reduction





Author: Tomohiro Takeuchi, Jun Fukushima * , Yamato Hayashi and Hirotsugu Takizawa

Source: http://mdpi.com/



DOWNLOAD PDF




Related documents