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Simple Electrodeposition of Dendritic Au Rods from Sulfite‐Based Au(I) Electrolytes with High Electrocatalytic and SERS Activities
Author(s) -
Hyun Myeounghee,
Choi Suhee,
Lee Young Wook,
Kwon Soo Han,
Han Sang Woo,
Kim Jongwon
Publication year - 2011
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201000759
Subject(s) - sulfite , electrochemistry , electrolyte , materials science , raman scattering , nanotechnology , rod , chemical engineering , raman spectroscopy , bimetallic strip , crystallography , electrode , chemistry , inorganic chemistry , metal , optics , metallurgy , medicine , physics , alternative medicine , pathology , engineering
Fabrication of dendritic Au rod (DAR) structures on Au surfaces via a simple electrodeposition from sulfite‐based electrolytes containing Au(I) has been demonstrated. Scanning electron microscopic images show that the DAR structures contain highly faceted star‐shaped protrusions in sub‐100 nm scale. Electrochemical and X‐ray diffraction results reveal that the DAR structures retain high amount of (110) and (100) crystalline domains on their surfaces. The unique morphology and surface orientation of DAR provide high electrocatalytic activities for glucose oxidation and oxygen reduction and efficient surface‐enhanced Raman scattering activities.