TY - GEN
T1 - Shape selective nano-catalysts
T2 - Nanotechnology 2010: Bio Sensors, Instruments, Medical, Environment and Energy - 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010
AU - Murph, Simona E.Hunyadi
AU - Torres, Ricardo D.
N1 - Copyright:
Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2010
Y1 - 2010
N2 - A series of bimetallic core-shell-alloy type Au-Pt nanomaterials with various morphologies, aspect ratios and compositions, were produced in a heterogenous epitaxial fashion. Gold nanoparticles with well-controlled particle size and shape, e.g. spheres, rods and cubes, were used as "seeds" for platinum growth in the presence of a mild reducing agent, ascorbic acid and a cationic surfactant cethyltrimethyl ammonium bromide (CTAB). The reactions take place in air and water, and are quick, economical and amenable for scaling up. The synthesized nanocatalysts were characterized by electron microscopy techniques and energy dispersive X-ray analysis. Nafion membranes were embedded with the Au-Pt nanomaterials and analyzed by atomic force microscopy (AFM) and scanning electron microscopy (SEM) for their potential in direct methanol fuel cells applications.
AB - A series of bimetallic core-shell-alloy type Au-Pt nanomaterials with various morphologies, aspect ratios and compositions, were produced in a heterogenous epitaxial fashion. Gold nanoparticles with well-controlled particle size and shape, e.g. spheres, rods and cubes, were used as "seeds" for platinum growth in the presence of a mild reducing agent, ascorbic acid and a cationic surfactant cethyltrimethyl ammonium bromide (CTAB). The reactions take place in air and water, and are quick, economical and amenable for scaling up. The synthesized nanocatalysts were characterized by electron microscopy techniques and energy dispersive X-ray analysis. Nafion membranes were embedded with the Au-Pt nanomaterials and analyzed by atomic force microscopy (AFM) and scanning electron microscopy (SEM) for their potential in direct methanol fuel cells applications.
KW - Gold-platinum core-shell/alloy
KW - Nafion
KW - Nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=78049441484&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78049441484&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:78049441484
SN - 9781439834152
T3 - Nanotechnology 2010: Bio Sensors, Instruments, Medical, Environment and Energy - Technical Proceedings of the 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010
SP - 777
EP - 780
BT - Nanotechnology 2010
Y2 - 21 June 2010 through 24 June 2010
ER -