One-Pot Synthesis of Trimetallic Au@PdPt Core-Shell Nanoparticles with High Catalytic Performance

Cited 127 time in webofscience Cited 0 time in scopus
  • Hit : 143
  • Download : 14
The development of an efficient synthesis method to produce multimetallic nanoparticles (NPs) with a desirable structure is strongly required to clarify the structure-composition-property relationship of NPs and to investigate their possible applications. However, the controlled synthesis of NPs consisting of multiple (n >= 3) noble metal components has been relatively unexplored in comparison to bimetallic NPs. In the present work, we have demonstrated a facile one-pot aqueous approach for the controlled synthesis of trimetallic Au@PdPt core-shell NPs with a well-defined octahedral Au core and a highly crystalline dendritic Pd-Pt alloy shell (Au-oct@PdPt NPs). The simultaneous reduction of multiple metal precursors with dual reducing agents, namely, ascorbic acid and hydrazine, gave a fine control over the nucleation and growth kinetics of NPs, resulting in the formation of novel Au-oct@PdPt NPs. The prepared NPs showed excellent catalytic performance for methanol electrooxidation, which can be attributed to their optimized binding strength toward adsorbate molecules due to the improved charge transfer between core and shell of the NPs. The present strategy can offer a convenient and valuable way to fabricate multicomponent nanostructures with desired structures and functions.
Publisher
AMER CHEMICAL SOC
Issue Date
2013-09
Language
English
Article Type
Article
Keywords

HIGH-INDEX FACETS; ENHANCED RAMAN-SCATTERING; SHAPE-CONTROLLED SYNTHESIS; OXYGEN REDUCTION; ELECTROCATALYTIC ACTIVITY; ALLOY NANOCRYSTALS; BIMETALLIC NANOCRYSTALS; GOLD NANOPARTICLES; ACTIVE ELECTROCATALYSTS; HETEROGENEOUS CATALYSIS

Citation

ACS NANO, v.7, no.9, pp.7945 - 7955

ISSN
1936-0851
DOI
10.1021/nn403027j
URI
http://hdl.handle.net/10203/187150
Appears in Collection
CH-Journal Papers(저널논문)
Files in This Item
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 127 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0