固体氧化物可逆电池LSTF燃料电极的制备和性能研究

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1、ÒĬŋ`λȒ3x,ÂzLSTFbq9/V©STUDYONPREPARATIONANDPERFORMANCEOFLa0.3Sr0.7Ti0.3Fe0.7O3-δFUELELECTRODEFORREVERSIBLESOLIDOXIDECELLƲĉ哈尔滨工业大学2018ƍ4ȵĔĕ:¥̵îŋɚN̄10213Ĕтĕ:¥̵îŝ̓ƛžŋÒĬŋ`λȒ3x,ÂzLSTFbq9/V©#7ƲĉDLʼnŌȎǷ·>žŋÒĬ>Æŋž̡!ǠȿX4"Æž!Æŋŋч¾ej2018ƍ4ȵ[>"ĄŪʹž%ĶŋClassifiedIndex:TM911.4

2、U.D.C:541.136DissertationfortheDoctoralDegreeinEngineeringSTUDYONPREPARATIONANDPERFORMANCEOFLSTFFUELELECTRODEFORREVERSIBLESOLIDOXIDECELLCandidate:XuJiaSupervisor:Prof.SunKeningAcademicDegreeAppliedfor:DoctorofEngineeringSpeciality:ChemicalEngineeringandTechnologyAffiliation:Scho

3、olofChemistryandChemicalEngineeringDateofDefence:Apr,2018Degree-Conferring-Institution:HarbinInstituteofTechnologyȂΪ]°f-̛ŦēcɾÆˑˍȓ˫ʅ(SOFC)ĂēcɾÆˑ˫αʅ(SOEC)ϸ˧˳͵КϤǵΩ͞1ēcɾÆˑëϾ˫ʅ(RSOC)PѰȌțʆɔİæ̣̅ͦ˳个˿,ōȜëPęSOFCɧƝžfЗȊ£˫͵18ëPęSOECɧƝϲΠ1ЃϱijЍ˫ʵŦžÙǸ£˳ƕɻ˹ǺϤÆ-ëP®˧˳ˍȓɻc,RSOCëP϶ΠSOFCSOECEȳϲΠ1ϵ

4、ɛŰ͵ŗ˚ˍȓɻ-˫͵˳ƴ˙®˧1ę͵ʵд丹ȝ˴)Й˳ƦK̕ZȶЙΪ˳ǎ2,Ⱦŗ丽šPLaFeǽɂSrTiO3ОП̃ɾÆˑɅȓ(LSTF)f-RSOC˳ˍȓ˫ɍ˳ˑ˟Ă˫Æŋ、͵à˫ʅ̢Ŕ、϶Π̣̅,ȾȒ̬:̩ЃϱšôLaFeǽɂК˳SrTiO3˫Ţ：϶Π¥ɏ1Ǝ#¥ɏ;LSTFɅȓęôɻɼ+˳͎Ɏ̢Ŕ、1̌Ŕ;La˳ǽɂК-30%1-1oFe˳ǽɂК-70%ȟ(LSTF0.7)1下ɍɅȓ˳˫Ţ：ȴѰ(4.69S·cm,800C)1ṇ̀;LSTF0.7ˍȓ˫ɍ˧?ëϾ˫ʅ˳SOFCɧƝ˳˫Æŋ、͵,ęɯĤ̇1ЃϱʤʰʍƞCeO2ĂNiЛŶƵ1

5、iƳPLSTF0.7-CeO2Ni-LSTF0.7-CeO2-˫ʅ下ɍ˳˫ʅęH2+˳Ȋ˫、͵ȶȡȧ˳ǿѰ1800o-2-2Cȟ˳ȴĶ¼：ŝƖ¥¯-612mW·cmĂ698mW·cm1˫ʅɍÆпǢ22Ũ-0.466Ω·cmĂ0.455Ω·cm,Ѓϱ²İPLSM(La0.2Sr0.8MnO3)-ScSZС̢ŔɾÆЪ0-˫ɍɅȓ˳š̞˫ʅ1̌ŔSOFCмɍ下ɍš˫ʅɍÆпǢ˳ϒ˕,˺š?下ɍɅȓ1˫ʅęLSM-ScSZмɍ˳ɍÆǴĹȰĶ,˩м下ɍ˳ɍÆпǢxëPδ̰£˫ɍãƒ˳ʚÆ͵,LSTF0.7-ScSZʤ-1ʰ下ɍęɽɻĂɾÆ̐+˳ãƒʚÆ

6、͵¥¯Ȧ52.2kJ·molĂ157.5-1kJ·mol1ϵυȡ˺š?ɾÆ̐ɻc1下ɍęɽɻ+ȶ˾ϩa˳ʚÆ͵1iƳ˫ÆŋãƒȰśȢä˦,λȒ̬Č̩šPLSTF0.7-CeO2-мɍPLSM-ScSZ-下ɍ˳ēcɾÆˑ˫αʅęôʳƖôij½˫Úôɻɼ+˳I-Vȯ͈Ă˫ÆŋпǢώ϶ΠΥƭ1ṇ̀;LSTF0.7-CeO2ˍȓ˫ɍ˧?ëϾ˫ʅ˳SOECɧƝ˳˫Æŋ、͵,SOECę˫αCO2˳ϱ̡+1ęij½˫`-2.0Vȟ17001o-275018001850CʳƖ˳˫ʛŝƖ¥¯Ϯ±1.2012.0513.1414.44A·cm,ЃϱšEʛпǢώ˳Ȑ

7、Ƕ˳Ǫò¥ɏ1Ƴ£˺š?ϓпǢR21ΏпǢR1š˒Ŕ˫Ú˳DžɍÆпǢ˳ϒ˕Ó.ŢĚ`,ɯij1ȾȒϴšɯ˫αʅ˳гȻ̢Ŕ、϶Π;̼̣͒̅1ɰ̌Ŕ;˫αʅ˳Φ.ΪɈͽ?-I-ĄŪʹž%ĶŋžŋÒĬλȒLSM-ScSZ下ɍ˳ďͫ,λȒ̬A̩šLSTF0.7-CeO2

8、ScSZ

9、LSM-ScSZëϾ˫ʅPSOFCɧƝϲΠȟ˳ôʳƖ˳Ȋ˫¼：ŝƖ϶ΠɍÆȯ͈Υƭ1Ǝ#Ѓϱ˫ÆŋпǢώ̼͒Υƭ;SOECɧƝñ*˫ɍ˳ɬŁпǢĂɍÆпǢ1Pṇ̀LSTFˍȓ˫ɍ˧?ëϾ˫ʅSOFC!SOEC(̛ɧƝͪ˧0˳˫Æŋ、͵,ęoƛϡɇS1800Cȟ30%CO+

10、70%CO2150%CO+50%CO2170%CO+30%2CO2ɻc͉¥˳ɍÆпǢ¥¯-0