[1]肖益鸿,詹瑛瑛,蔡国辉,等.镧锰系钙钛矿可脱附氧与催化氧化活性[J].华侨大学学报(自然科学版),2000,21(4):399-403.[doi:10.3969/j.issn.1000-5013.2000.04.015]
　Xiao Yihong,Zhan Yingying,Cai Guhui,et al.Activity of Oxygen Desorption and Complete Catalysis and Oxidation Showing by La and Mn Series Composite Oxides of Perovskite Type[J].Journal of Huaqiao University(Natural Science),2000,21(4):399-403.[doi:10.3969/j.issn.1000-5013.2000.04.015]
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镧锰系钙钛矿可脱附氧与催化氧化活性()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第21卷
期数:
2000年第4期
页码:
399-403
栏目:
出版日期:
2000-10-20

文章信息/Info

Title:
Activity of Oxygen Desorption and Complete Catalysis and Oxidation Showing by La and Mn Series Composite Oxides of Perovskite Type
文章编号:
1000-5013(2000)04-0399-05
作者:
肖益鸿; 詹瑛瑛; 蔡国辉; 魏可镁
福州大学化肥催化剂国家工程研究中心, 福州350002
Author(s):
Xiao Yihong;  Zhan Yingying;  Cai Guhui;  Wei Kemei
National Research Center of Chemical Fertilizer Catalysts, Fuzhou Univ., 350002, Fuzhou
关键词:
钙钛矿型复合氧化物;  TPD;  取代;  氧化活性
Keywords:
perovskite type composite oxides;  TPD;  substitution;  oxidation;  activation
分类号:
O614
DOI:
10.3969/j.issn.1000-5013.2000.04.015
摘要:
用热分解法合成 L a0 .8Me0 .2 Mn O3( Me:Na,K,Ca,Sr,Ba)和 La0 .8Sr0 .2 Mn0 .7M0 .3O3( M:Fe,Co,Ni,Cu)系列的钙钛矿型复合氧化物,用 TPD方法研究部分取代对样品的氧吸 -脱附性能的影响 .对于 L a0 .8Me0 .2 Mn O3系列,氧的吸 -脱附特性由 A位的离子半径、价态和物化性质决定 .对于B位取代基活性与可脱 α氧量并不成比例关系,其活性的决定因素可能是 B位离子的自氧化还原循环能力 .
Abstract:
La 0.8 Me 0.2 MnO 3(Me:Na,K,Ca,Sr,Ba)and La 0.8 Sr 0.2 Mn 0.7 M 0.3 O 3(M:Fe,Co,Ni,Cu)as two series of perovskite type composite oxides were synthesized by thermolysis.The effect of partial substitution on the oxygen adsorption desorption performance of the specimens was studied by temperature programmed desorption (TPD).Concerning to La 0.8 Me 0.2 MnO 3 series,radius and valence state and physicochemical property of A site component inos decide their oxygen andsorption desorption property.Concerning to Bsite componentions,the ability of auto redox and circulation may be the deciscive factor of activity; the substitution of their activities does not proportional to the amount of α oxygen desorption.

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备注/Memo

备注/Memo:
福建省自然科学基金资助项目
更新日期/Last Update: 2014-03-23