Highly monodisperse Cu- and Ag-based bimetallic nanocrystals for the efficient utilization of noble metals in catalysis

Highly monodisperse Cu- and Ag-based bimetallic noble metal nanocrystals (BNMNs) with diameter 2-7 nm have been synthesized. The synthesis employs a successive reduction process by using inorganic metal salts as precursors at a low temperature (∼110 °C). HRTEM, XPS and XRD analytical techniques were...

Full description

Saved in:
Bibliographic Details
Published in:Nanoscale 2011-01, Vol.3 (1), p.272-279
Main Authors: Shen, Shuling, Zhuang, Jing, Yang, Yan, Wang, Xun
Format: Article
Language:English
Subjects:
Bimetals
Catalysis
Copper
Copper - chemistry
Gold - chemistry
Metal Nanoparticles - chemistry
Nanocrystals
Nanostructure
Noble metals
Platinum - chemistry
Silver
Silver - chemistry
Spectrophotometry, Ultraviolet
Temperature
X-ray photoelectron spectroscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Highly monodisperse Cu- and Ag-based bimetallic noble metal nanocrystals (BNMNs) with diameter 2-7 nm have been synthesized. The synthesis employs a successive reduction process by using inorganic metal salts as precursors at a low temperature (∼110 °C). HRTEM, XPS and XRD analytical techniques were applied for the structural analysis of BNMNs. Catalytic activity investigation (CO oxidation) over different supports (silicate nanotubes and CeO2 nanoparticles) shows that BNMNs have identical and even enhanced performance over pure noble metal nanocrystals with similar size and size distribution, which proves that these BNMNs can significantly reduce the amount and thus make full use of noble metals in catalysis.
ISSN:2040-3364
2040-3372
DOI:10.1039/c0nr00601g