Prev. Article Next Article Table of Contents

Communication

Influence of Microwave Heating on the Growth of Gadolinium-Doped Cerium Oxide Nanorods

Mario Godinho^†, Caue Ribeiro^‡, Elson Longo^† and Edson Roberto Leite*^†

Chemistry Department, Federal University of São Carlos, CP-676, 13565-905, São Carlos, SP, Brazil, and EMBRAPA Instrumentacão Agropecuária, CP- 741, 13569-970, São Carlos, SP, Brazil

Cryst. Growth Des., 2008, 8 (2), pp 384–386

DOI: 10.1021/cg700872b

Publication Date (Web): January 11, 2008

†

Federal University of São Carlos.

‡

EMBRAPA Instrumentacão Agropecuária.

* To whom correspondence should be addressed. E-mail: derl@power.ufscar.br.

Abstract

In this communication, we demonstrate that the use of microwave heating during hydrothermal treatment drastically decreases the treatment time required to obtain gadolinium-doped ceria nanorods and that the oriented attachment is the dominant mechanism responsible for anisotropic growth. In fact, considering oriented attachment (OA) as a statistical mechanism, we postulate that the growth process conducted under microwave heating increases the effective collision rate. A plausible explanation for the increase of the effective collision rate under microwave irradiation is the increase in the collision cross-section of the particle.

View: Full Text HTML | Hi-Res PDF | PDF w/ Links

Tools

SciFinder Links

History

Published In Issue February 06, 2008
Article ASAPJanuary 11, 2008
Received: September 11, 2007
Revised: October 19, 2007

Recommend & Share

Related Content

Controlled Synthesis and Self-Assembly of CeO₂ Nanocubes Controlled Synthesis and Self-Assembly of CeO₂ NanocubesJournal of the American Chemical Society
- Controlled Synthesis and Self-Assembly of CeO₂ Nanocubes Controlled Synthesis and Self-Assembly of CeO₂ Nanocubes
  Songwang Yang and Lian Gao
  Journal of the American Chemical Society 2006 128 (29), pp 9330–9331
  Abstract: CeO₂ nanocubes (and nanorods) enclosed by six {200} planes with controlled sizes have been prepared through a facile one-pot method. The nanocubes have a strong tendency to assemble into 2D and 3D arrays with regular patterns on a substrate, which is ...
  Abstract | Full Text HTML | Hi-Res PDF
Spontaneous Self-Assembly of Cerium Oxide Nanoparticles to Nanorods through Supraaggregate FormationThe Journal of Physical Chemistry B
- Spontaneous Self-Assembly of Cerium Oxide Nanoparticles to Nanorods through Supraaggregate Formation
  Suresh C. Kuiry, Swanand D. Patil, Sameer Deshpande, and Sudipta Seal
  The Journal of Physical Chemistry B 2005 109 (15), pp 6936–6939
  Abstract: Self-assembly of cerium oxide nanoparticles to nanorods is reported. Such nanorods have an aspect ratio of 6 with a diameter of approximately 40 nm. The formation of cylindrical supraaggregates and their subsequent growth by preferential assembling of ...
  Abstract | Full Text HTML | Hi-Res PDF
Shape-Selective Synthesis and Oxygen Storage Behavior of Ceria Nanopolyhedra, Nanorods, and NanocubesThe Journal of Physical Chemistry B
- Shape-Selective Synthesis and Oxygen Storage Behavior of Ceria Nanopolyhedra, Nanorods, and Nanocubes
  Hao-Xin Mai, Ling-Dong Sun, Ya-Wen Zhang, Rui Si, Wei Feng, Hong-Peng Zhang, Hai-Chao Liu, and Chun-Hua Yan
  The Journal of Physical Chemistry B 2005 109 (51), pp 24380–24385
  Abstract: Single-crystalline and uniform nanopolyhedra, nanorods, and nanocubes of cubic CeO₂ were selectively prepared by a hydrothermal method at temperatures in the range of 100−180 °C under different NaOH concentrations, using Ce(NO₃)₃ as the cerium source. ...
  Abstract | Full Text HTML | Hi-Res PDF

Communication

Influence of Microwave Heating on the Growth of Gadolinium-Doped Cerium Oxide Nanorods