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Title: Microwave-assisted synthesis of palladium nanocubes and nanobars

Abstract

Microwave was employed in the shape-controlled synthesis of palladium nanoparticles. Palladium nanocubes and nanobars with a mean size of about 23.8 nm were readily synthesized with H{sub 2}PdCl{sub 4} as a precursor, tetraethylene glycol (TEG) as both a solvent and a reducing agent in the presence of PVP and CTAB in 80 s under microwave irradiation. The structures of the as-prepared palladium nanoparticles were characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD) and ultraviolet-visible (UV-vis) absorption spectroscopy. The formation of PdBr{sub 4}{sup 2-}due to the coordination replacement of the ligand Cl{sup -} ions in PdCl{sub 4}{sup 2-} ions by Br{sup -} ions in the presence of bromide was responsible for the synthesis of Pd nanocubes and nanobars. In addition, a milder reducing power, a higher viscosity and a stronger affinity of TEG were beneficial to the larger sizes of Pd nanocubes and nanobars.

Authors:
;  [1];  [1];  [1]
  1. Key Laboratory of Catalysis and Material Science of the State Ethnic Affairs Commission and Ministry of Education, Hubei Province, College of Chemistry and Material Science, South-Central University for Nationalities, Wuhan 430074 (China)
Publication Date:
OSTI Identifier:
22202546
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 45; Journal Issue: 2; Other Information: Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTROSCOPY; BROMINE IONS; CHLORINE IONS; ELECTRON DIFFRACTION; IRRADIATION; NANOSTRUCTURES; PALLADIUM; REDUCING AGENTS; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Yu, Yanchun, Zhao, Yanxi, Huang, Tao, Liu, Hanfan, and Institute of Chemistry, Chinese Academy of Science, Beijing 100080. Microwave-assisted synthesis of palladium nanocubes and nanobars. United States: N. p., 2010. Web. doi:10.1016/J.MATERRESBULL.2009.09.028.
Yu, Yanchun, Zhao, Yanxi, Huang, Tao, Liu, Hanfan, & Institute of Chemistry, Chinese Academy of Science, Beijing 100080. Microwave-assisted synthesis of palladium nanocubes and nanobars. United States. doi:10.1016/J.MATERRESBULL.2009.09.028.
Yu, Yanchun, Zhao, Yanxi, Huang, Tao, Liu, Hanfan, and Institute of Chemistry, Chinese Academy of Science, Beijing 100080. Mon . "Microwave-assisted synthesis of palladium nanocubes and nanobars". United States. doi:10.1016/J.MATERRESBULL.2009.09.028.
@article{osti_22202546,
title = {Microwave-assisted synthesis of palladium nanocubes and nanobars},
author = {Yu, Yanchun and Zhao, Yanxi and Huang, Tao and Liu, Hanfan and Institute of Chemistry, Chinese Academy of Science, Beijing 100080},
abstractNote = {Microwave was employed in the shape-controlled synthesis of palladium nanoparticles. Palladium nanocubes and nanobars with a mean size of about 23.8 nm were readily synthesized with H{sub 2}PdCl{sub 4} as a precursor, tetraethylene glycol (TEG) as both a solvent and a reducing agent in the presence of PVP and CTAB in 80 s under microwave irradiation. The structures of the as-prepared palladium nanoparticles were characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD) and ultraviolet-visible (UV-vis) absorption spectroscopy. The formation of PdBr{sub 4}{sup 2-}due to the coordination replacement of the ligand Cl{sup -} ions in PdCl{sub 4}{sup 2-} ions by Br{sup -} ions in the presence of bromide was responsible for the synthesis of Pd nanocubes and nanobars. In addition, a milder reducing power, a higher viscosity and a stronger affinity of TEG were beneficial to the larger sizes of Pd nanocubes and nanobars.},
doi = {10.1016/J.MATERRESBULL.2009.09.028},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 2,
volume = 45,
place = {United States},
year = {2010},
month = {2}
}