TY - JOUR
T1 - Platinum-ruthenium nanoparticles in poly(2,5-dimethoxyaniline)-poly(styrene sulfonic acid) via one-step synthesis route for methanol oxidation
AU - Huang, Li Ming
AU - Wen, Ten Chin
PY - 2008/7/15
Y1 - 2008/7/15
N2 - Platinum-Ruthenium (Pt-Ru) nanoparticles were generated along with the simultaneous formation of poly(2,5-dimethoxyaniline) (PDMA) in the presence of poly(styrene sulfonic acid) (PSS) using a one-step UV-assisted method. The existence of Pt-Ru nanoparticles was verified through characterization by transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The latter two confirmed that the surface state of Ru in the Pt-Ru nanoparticles not only has metallic characteristics but is also present in oxidized form. The existence of PDMA in PSS was also identified using ultraviolet-visible (UV-vis) spectroscopy. Based on electrochemical measurements, PDMA-PSS-Pt-Ru exhibited a much higher electrocatalytic activity than PDMA-PSS-Pt and bulk Pt in methanol oxidation. Under the appropriate conditions, these particles can potentially serve as robust electrocatalysts in fuel cell applications.
AB - Platinum-Ruthenium (Pt-Ru) nanoparticles were generated along with the simultaneous formation of poly(2,5-dimethoxyaniline) (PDMA) in the presence of poly(styrene sulfonic acid) (PSS) using a one-step UV-assisted method. The existence of Pt-Ru nanoparticles was verified through characterization by transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The latter two confirmed that the surface state of Ru in the Pt-Ru nanoparticles not only has metallic characteristics but is also present in oxidized form. The existence of PDMA in PSS was also identified using ultraviolet-visible (UV-vis) spectroscopy. Based on electrochemical measurements, PDMA-PSS-Pt-Ru exhibited a much higher electrocatalytic activity than PDMA-PSS-Pt and bulk Pt in methanol oxidation. Under the appropriate conditions, these particles can potentially serve as robust electrocatalysts in fuel cell applications.
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U2 - 10.1016/j.jpowsour.2008.04.006
DO - 10.1016/j.jpowsour.2008.04.006
M3 - Article
AN - SCOPUS:44649105707
SN - 0378-7753
VL - 182
SP - 32
EP - 38
JO - Journal of Power Sources
JF - Journal of Power Sources
IS - 1
ER -