Please use this identifier to cite or link to this item:
|Title:||Pt-Ru Bimetallic nanoparticles loading on activated carbon fibers without using reducing agents|
|Keywords:||Platinum-ruthenium alloyed nanopaticles|
Activated carbon fiber
|Abstract:||Platinum-ruthenium(Pt-Ru) bimetallic catalyst system is being used as catalyst materials of DMFCs anode due to its high tolerance for carbon monoxide poisoning. Recently, activated carbon fiber (ACF) is reported as a useful catalyst support because it has several advantages such as high dispersion of impregnated metals and low mass transfer resistance due to its uniformly developed micropores. Therefore, Pt-Ru nanoparticles loading on ACF without using reducing agents is carried out to develop an effective bimetallic catalyst. PtCl<sub>6</sub><sup>2-</sup> and Ru<sup>3+</sup> are impregnated on ACF, and heated up to 800°C in N<sub>2</sub>. TG, XRD, TEM and EDS analyses are carried out to confirm Pt/Ru particles loading and distribution on ACF. The amount of PtCl<sub>6</sub><sup>2- </sup>impregnation is average 75% larger than that of Ru<sup>3+ </sup>at pH upto 3.5 and increases after pH 3.5 by crossing that of PtCl<sub>6</sub><sup>2-</sup>, while Ru<sup>3+ </sup>impregnation is much affected by pH. There are uniformly distributed Pt and Ru nanoparticles, which means simple impregnation and heating the PtCl<sub>6</sub><sup>2-</sup> and Ru<sup>3+ </sup>complexes up to 400°C is enough to obtain pure Pt-Ru nanoparticles on ACF without using reducing agents.|
|ISSN:||0975-1017 (Online); 0971-4588 (Print)|
|Appears in Collections:||IJEMS Vol.17(5) [October 2010]|
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.