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Title: Composition-Controlled Synthesis of Bimetallic PdPt Nanoparticles and Their Electrocatalysis for Methanol Oxidation Reaction

Abstract

PdPt alloy nanoparticles (NPs) are promising catalysts for various chemical reactions because of the presence of powerful catalytic components of Pt and Pd on the surface of one nanostructure. In this paper, we report a facile synthesis of polyhedral PdPt alloy NPs via coreduction of Pd(acac){sub 2} (acac = acetylacetonate) and Pt(acac)2 with morpholine borane in oleylamine at 90 and 180 C. In the synthesis, the molar ratio of the two metal precursors added in the reaction mixture was carried over to the final PdPt NP product, and compositions of the PdPt NPs were readily tuned from Pd{sub 88}Pt{sub 12} to Pd{sub 34}Pt{sub 66}. These PdPt NPs show the composition-dependent catalytic activity for methanol oxidation, with NPs in 40-60 atomic % Pt exhibiting the superior activity and durability.

Authors:
 [1];  [2];  [1];  [2];  [1]
  1. Brown University
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Shared Research Equipment Collaborative Research Center
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1049789
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Chemistry of Materials
Additional Journal Information:
Journal Volume: 23; Journal Issue: 18; Journal ID: ISSN 0897-4756
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; 36 MATERIALS SCIENCE; ALLOYS; BORANES; CATALYSTS; CHEMICAL REACTIONS; METHANOL; MIXTURES; MORPHOLINES; OXIDATION; PALLADIUM; PLATINUM ALLOYS; SYNTHESIS

Citation Formats

Liu, Yi, Chi, Miaofang, Mazumder, Vismadeb, More, Karren Leslie, and Sun, Shouheng. Composition-Controlled Synthesis of Bimetallic PdPt Nanoparticles and Their Electrocatalysis for Methanol Oxidation Reaction. United States: N. p., 2011. Web. doi:10.1021/cm2014785.
Liu, Yi, Chi, Miaofang, Mazumder, Vismadeb, More, Karren Leslie, & Sun, Shouheng. Composition-Controlled Synthesis of Bimetallic PdPt Nanoparticles and Their Electrocatalysis for Methanol Oxidation Reaction. United States. https://doi.org/10.1021/cm2014785
Liu, Yi, Chi, Miaofang, Mazumder, Vismadeb, More, Karren Leslie, and Sun, Shouheng. Sat . "Composition-Controlled Synthesis of Bimetallic PdPt Nanoparticles and Their Electrocatalysis for Methanol Oxidation Reaction". United States. https://doi.org/10.1021/cm2014785.
@article{osti_1049789,
title = {Composition-Controlled Synthesis of Bimetallic PdPt Nanoparticles and Their Electrocatalysis for Methanol Oxidation Reaction},
author = {Liu, Yi and Chi, Miaofang and Mazumder, Vismadeb and More, Karren Leslie and Sun, Shouheng},
abstractNote = {PdPt alloy nanoparticles (NPs) are promising catalysts for various chemical reactions because of the presence of powerful catalytic components of Pt and Pd on the surface of one nanostructure. In this paper, we report a facile synthesis of polyhedral PdPt alloy NPs via coreduction of Pd(acac){sub 2} (acac = acetylacetonate) and Pt(acac)2 with morpholine borane in oleylamine at 90 and 180 C. In the synthesis, the molar ratio of the two metal precursors added in the reaction mixture was carried over to the final PdPt NP product, and compositions of the PdPt NPs were readily tuned from Pd{sub 88}Pt{sub 12} to Pd{sub 34}Pt{sub 66}. These PdPt NPs show the composition-dependent catalytic activity for methanol oxidation, with NPs in 40-60 atomic % Pt exhibiting the superior activity and durability.},
doi = {10.1021/cm2014785},
url = {https://www.osti.gov/biblio/1049789}, journal = {Chemistry of Materials},
issn = {0897-4756},
number = 18,
volume = 23,
place = {United States},
year = {2011},
month = {1}
}