کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6661725 1426556 2018 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Underpotential deposition of lead on quasi-spherical and faceted gold nanoparticles
ترجمه فارسی عنوان
قرار گرفتن زیر پتانسیل سرب در نانوذرات طلا شبه کروی و فشرده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
The underpotential deposition of lead was studied on spherical and faceted gold nanoparticles. On 21.7 nm spherical nanoparticles, a single stripping peak from Au(111) face was observed at − 0.2 V, whereas on 82 nm faceted gold nanoparticles the peak split in to two at − 0.2 V and − 0.18 V vs Ag/AgCl (3 M KCl). The roughening of the Au(111) terraces by electrochemical treatment leads to the suppression of the spike. It appears that the extent of surface crystallinity of nanoparticles causes the observed differences in the upd-stripping behaviour. The splitting of the Pb-upd stripping peak from Au(111) face can be used as an indication for the surface crystallinity of gold nanoparticles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 819, 15 June 2018, Pages 159-162
نویسندگان
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