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OALib Journal期刊
ISSN: 2333-9721
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Zn掺杂的LaCoO3钙钛矿用于乙醇水蒸气重整制氢反应
DOI: 10.1016/S1872-2067(10)60218-5, PP. 970-977
Keywords: 一步柠檬酸络合法,钙钛矿,多样纳米核,锌,乙醇,蒸气重整,积炭
Abstract:
？利用一步柠檬酸络合法合成了钙钛矿LaCo1-xZnxO3(x=0,0.05,0.1,0.2,0.3and0.5),并将其用于乙醇水蒸气重整反应.利用X射线衍射、程序升温还原和X射线光电子能谱对催化剂进行了表征.结果表明,Zn的加入不利于形成LaCo1-xZnxO3钙钛矿结构,当x≥0.1时产生了一些分离相.新鲜LaCo0.9Zn0.1O3催化剂中意外发现存在Co3O4相,这有利于催化剂反应性能的提高.反应后的催化剂结构发生变化,形成了La2O2CO3,而该物质有利于积炭的消除和甲烷的重整.
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