Hydrothermal synthesis and characterization of ce1-xmn xo2-δ solid solutions - Details

author：

Zhang, G.-F. (Zhang, G.-F..) ^[1] | Li, L.-P. (Li, L.-P..) ^[2] | Li, G.-S. (Li, G.-S..) ^[3] | Qiu, X.-Q. (Qiu, X.-Q..) ^[4] Unfold

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Scopus CSCD

Abstract：

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-xMnxO　2-δ　nanocrystals　exhibited　a　lower　releasing　oxygen　temperature　as　indicated　by　TPR　technique.

Keyword：

Hydrothermal method; Mn doped; Solid solutions; Valence state

Community：

[ 1 ] [Zhang, G.-F.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
[ 2 ] [Zhang, G.-F.]Research Institute of Photocatalysis, Fuzhou University, Fuzhou 350002, China
[ 3 ] [Zhang, G.-F.]Rare Earth School, Inner Mongolia University of Science and Technology, Baotou 014010, China
[ 4 ] [Li, L.-P.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
[ 5 ] [Li, G.-S.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
[ 6 ] [Qiu, X.-Q.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Reprint 's Address：

[Li, L.-P.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Email：

lipingli@fjirsm.ac.cn

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Source ：

Jiegou Huaxue

ISSN： 0254-5861

CN： 35-1112/TQ

Year： 2010

Issue： 2

Volume： 29

Page： 307-313

0 . 6 2 4

JCR@2010

5 . 9 0 0

JCR@2023

ESI Discipline： CHEMISTRY;

JCR Journal Grade：4

Cited Count：

WoS CC Cited Count：

30 Days PV： 0

Affiliated Colleges：

化学学院本学院/部未明确归属的数据

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