| 钙钛矿型氧化物LaFeO_3的制备及甲烷化学链燃烧性能 |
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| 引用本文： | 李新爱,何方,赵坤,黄振,李海滨.钙钛矿型氧化物LaFeO_3的制备及甲烷化学链燃烧性能[J].天然气化工,2012,37(6):1-6. |
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| 作者姓名： | 李新爱 何方 赵坤 黄振 李海滨 |
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| 作者单位： | 1. 中国科学院广州能源研究所,中国科学院可再生能源与天然气水合物重点实验室,广东广州510640;中国科学院研究生院,北京100049
2. 中国科学院广州能源研究所,中国科学院可再生能源与天然气水合物重点实验室,广东广州510640 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 选择燃烧法制备了钙钛矿型氧化物LaFeO3,采用XRD、FT-IR、H2-TPR、SEM等手段对所制备的LaFeO3进行了表征。并在热重反应器上通过甲烷-空气切换反应对LaFeO3钙钛矿型氧化物的循环反应性能进行了研究。结果表明,LaFeO3钙钛矿型氧化物具有良好的循环反应性能,多次循环反应后,钙钛矿型氧化物的晶相结构和微观形貌没有发生明显变化。通过Sr掺杂制备的La0.9Sr0.1FeO3钙钛矿型氧化物具有更好的供氧能力。
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| 关 键 词： | 甲烷 钙钛矿 晶格氧 化学链燃烧 |
Preparation of perovskite oxide LaFeO3 and its performances for chemical-looping combustion of methane |
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| LI Xin-ai
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HE Fang
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ZHAO Kun
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HUANG Zhen
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LI Hai-bin.Preparation of perovskite oxide LaFeO3 and its performances for chemical-looping combustion of methane[J].Natural Gas Chemical Industry,2012,37(6):1-6. |
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| Authors: | LI Xin-ai HE Fang ZHAO Kun HUANG Zhen LI Hai-bin |
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| Affiliation: | 1(1.Key Laboratory of Renewable Energy and Gas Hydrate of Chinese Academy of Sciences,Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China; 2.Graduate of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | LaFeO3 perovskite-type oxides were prepared by using combustion method,and XRD,FT-IR,H2-TPR and SEM were used to characterize the samples.The redox capability of LaFeO3 reacting with CH4 and air respectively was investigated in a thermal gravimetrical analysis(TGA) reactor.The results indicated that LaFeO3 perovskite oxides showed excellent stability of cycles.After successive redox reactions,crystal phase structure and micro-morphology of perovskite oxide were not significantly changed. La0.9Sr0.1FeO3 synthesized by doping of Sr exhibited better oxygen transport ability. |
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| Keywords: | methane perovskite lattice oxygen chemical looping combustion |
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