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自蔓延高温合成SOFC阴极材料La0.7Sr0.3MnO3
引用本文:祝宝军,贡涛,唐元洪,陶颖.自蔓延高温合成SOFC阴极材料La0.7Sr0.3MnO3[J].湖南大学学报(自然科学版),2005,32(2):90-94.
作者姓名:祝宝军  贡涛  唐元洪  陶颖
作者单位:1. 湖南大学,材料科学与工程学院,湖南,长沙,410082
2. 中南大学,材料科学与工程学院,湖南,长沙,410083
基金项目:中国博士后科学基金资助项目(2004036425)
摘    要:设计了4类共9个化学反应,采用自蔓延高温合成的方法合成了固体氧化物燃料电池阴极材料La0.7Sr0.3MnO3?B8龇从μ逑捣直鹗牵篖a0.7Sr0.3MnO3?A3琈n粉与氧化剂NaClO4或Ba(ClO4)2在空气中的反应;La2O3,SrC03与Mn粉在氧气中的反应;LaCl3,SrCl2,MnCl2与氧化剂NaO2或Na2O2在空气中的反应;La(NO3)3,Sr(NO)2,Mn粉与C3N6H6在空气中的反应.XRD和I.C.P分析表明:采用SHS法成功合成了菱方晶系(R3C)钙钛矿结构的La0.7Sr0.3MnO3?B7勰渲写蟛糠址从μ逑岛铣刹镂ハ郘a0.7Sr0.3MnO3?A3梅椒芟灾档筒牧现票赋杀荆欣谕贫疭OFC的实用化和产业化进程.

关 键 词:自蔓延高温合成  燃料电池  阴极材料  La0.7Sr0.3MnO3
文章编号:1000-2472(2005)02-0090-05

Self-Propagating High-Temperature Synthesis of La0.7Sr0.3MnO3
ZHU Bao-jun,GONG Tao,TANG Yuan-hong,TAO Ying.Self-Propagating High-Temperature Synthesis of La0.7Sr0.3MnO3[J].Journal of Hunan University(Naturnal Science),2005,32(2):90-94.
Authors:ZHU Bao-jun  GONG Tao  TANG Yuan-hong  TAO Ying
Institution:ZHU Bao-jun~1,GONG Tao~1,TANG Yuan-hong~1,TAO Ying~2
Abstract:In order to reduce the production cost, a self-propagating high temperature synthesis ( SHS) technique was used to prepare the cathode materials of solid oxide fuel cells(SOFC). Four kinds of SHS reaction systems and nine reaction formulas were studied to prepare La_(0.7)Sr_(0.3)MnO_3. The four kinds of SHS reactions were reactions of La_2O_3,( SrCO_3) and Mn with NaClO_4 or Ba(ClO_4)_2 in air atmosphere; reactions of La_2O_3, SrCO_3 and Mn in pure oxygen atmosphere; reactions of LaCl_3, SrCl_2, MnCl_2 and NaO_2 or Na_2O_2 in air atmosphere, and reactions of La(NO_3)_3, Sr(NO_3)_2, Mn and C_3N_6H_6 in air atmosphere. The XRD analysis showed that most of the SHS products of the above-mentioned reactions were single-phase La_(0.7)Sr_(0.3)MnO_3. This method can dramatically reduce the cost of material preparation and promote the utilization and industrialization of SOFC.
Keywords:self-propagating high-temperature synthesis  solid oxide fuel cells  cathodes material  La_(0  7)Sr_(0  3)MnO_3
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