HydrothermalSynthesisandCharacterizationofCe1-xMnxO2-δSolidSolutions

被引：2

作者：

张国芳 ^{[1
,2
,3
]}

李莉萍 ^{[1
]}

李广社 ^{[1
]}

邱晓清 ^{[1
]}

机构：

[1] State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences

[2] Research Institute of Photocatalysis,Fuzhou University

[3] Rare Earth School,Inner Mongolia University of Science and Technology

来源：

结构化学 | 2010年 / 29卷 / 02期

关键词：

Mn doped; solid solutions; hydrothermal method; valence state;

D O I：

10.14102/j.cnki.0254-5861.2010.02.002

中图分类号：

O611.3 [性质];

学科分类号：

070301 ; 081704 ;

摘要：

Nanocrystals of Ce1-xMnxO2-δ(x=0.00,0.05,0.10,0.15,and 0.20) were synthesized by a hydrothermal reaction route.The solid solutions crystallized in a cubic fluorite structure with a particle size in the range of 11～15 nm.The incorporation of Mn ions in CeO2 resulted in a lattice volume reduction.Mn ions showed a mixed valence state of +2,+3 and +4 in CeO2 lattice.An obvious red-shift of the absorption threshold edge was observed from the UV-visible spectrum.Compared with the bulk CeO2,Ce1-xMnxO2-δ nanocrystals exhibited a lower releasing oxygen temperature as indicated by TPR technique.

引用

页码：307 / 313

页数：7

共 2 条

[1]

Effects of carrier and Mn loading on supported manganese oxide catalysts for catalytic combustion of methane[J]. Jinyan Hu~(1,2) Wei Chu~(2*) Limin Shi~2 1.Department of Environmental Science and Engineering,Sichuan University,Chengdu 610065,Sichuan,China 2.Department of Chemical Engineering,Sichuan University,Chengdu 610065,Sichuan,China.Journal of Natural Gas Chemistry. 2008(02)

[2]

Visible light-activated nanosized doped-TiO2 photocatalysts .2 Fuerte A,Hernandez-Alonso M D,Mairs A J,et al. Chemical Communications . 2001

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