Size dependency variation in lattice parameter and valency states in nanocrystalline cerium oxide

被引：966

作者：

Deshpande, S ^{[1
]}

Patil, S ^{[1
]}

Kuchibhatla, SVNT ^{[1
]}

Seal, S ^{[1
]}

机构：

[1] Univ Cent Florida, AMPAC, Orlando, FL 32816 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 13期

关键词：

D O I：

10.1063/1.2061873

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A correlation between the particle size and the lattice parameter has been established in nanocerium oxide particles (3-30 nm). The variation in the lattice parameter is attributed to the lattice strain induced by the introduction of Ce3+ due to the formation of oxygen vacancies. Lattice strain was observed to decrease with an increase in the particle size. Ce3+ ions concentration increased from 17% to 44% with the reduction in the particle size. (C) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

共 10 条

[1] COMPUTER MODELING OF SURFACES AND DEFECTS ON CERIUM DIOXIDE
CONESA, JC
[J]. SURFACE SCIENCE, 1995, 339 (03) : 337 - 352
[2] NANOCRYSTALLINE MATERIALS
BIRRINGER, R
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 117 : 33 - 43
[3] Novel SOFC anodes for the direct electrochemical oxidation of hydrocarbon
Gorte, RJ
Kim, H
Vohs, JM
[J]. JOURNAL OF POWER SOURCES, 2002, 106 (1-2) : 10 - 15
[4] JASINSKI P, 2003, SENSOR ACTUAT B-CHEM, V94, P222
[5] Jones C.W., 1999, Applications of Hydrogen Peroxide and Derivatives, P37, DOI [10.1039/9781847550132-00037, DOI 10.1039/9781847550132-00037]
[6] Electronic excitation in a catalytic support oxide, CeO2
Mamontov, E
Dmowski, W
Egami, T
Kao, CC
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2000, 61 (03) : 431 - 433
[7] Synthesis of nanocrystalline ceria particles for high temperature oxidation resistant coating
Patil, S
Kuiry, SC
Seal, S
Vanfleet, R
[J]. JOURNAL OF NANOPARTICLE RESEARCH, 2002, 4 (05) : 433 - 438
[8] SEAL S, 2001, EXPT METHODS PHYS SC, P111
[9] Cerium oxide for sunscreen cosmetics
Yabe, S
Sato, T
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 2003, 171 (1-2) : 7 - 11
[10] Synthesis and characterization of nanosized ceria powders and high-concentration ceria sols
Zou, H
Lin, YS
Rane, N
He, T
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2004, 43 (12) : 3019 - 3025

← 1 →