| Chemical stability of La_2O_3 in La_2O_3-Mo cathode materials |
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| 作者姓名： | 王金淑 周美玲 聂祚仁 张久兴 王亦曼 左铁镛 |
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| 作者单位： | Key Laboratory of Advanced Functional Materials，Ministry of Education，P.R.China; School of Materials Science and Engineering，Beijing Polytechnic University |
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| 基金项目： | Project(G19980 6 1316 )supportedbytheNationalKeyFundamentalResearchProgram，project( 2 992 0 0 6 )supportedbyBei jingFundamentalResearchFoundation，project ( 95 4810 70 0 )supportedbyBeijingNewStarProgram |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＴｈＯ2 Ｗｔｈｅｒｍｉｏｎｉｃｃａｔｈｏｄｅｓａｒｅｓｔｉｌｌｗｉｄｅｌｙｕｓｅｄｉｎｈｉｇｈ ｐｏｗｅｒｖａｃｕｕｍｔｕｂｅｓｆｏｒｉｎｄｕｓｔｒｉａｌｈｅａｔ ｉｎｇ .ＩｔｉｓｗｅｌｌｋｎｏｗｎｔｈａｔｔｈｅｒａｄｉｏａｃｔｉｖｉｔｙｏｆＴｈＯ2ｌｅａｄｓｐｒｏｂｌｅｍｓｔｏｉｔｓｍａｎｕｆａｃｔｕｒｅａｎｄａｐｐｌｉｃａｔｉｏｎ .Ｌａ2 Ｏ3 Ｍｏ ,ｏｎｅｏｆｔｈｅａｔｔｒａｃｔｉｖｅａｌｔｅｒｎａｔｉｖｅｓ,ｗａｓｉｎ ｖｅｎｔｅｄｉｎｔｈｅｍｉｄｓｔｏｆ 1970ｓ1～ …
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Chemical stability of La_2O_3 in La_2O_3-Mo cathode materials |
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| WANG Jin-shu,ZHOU Mei ling,WANG Yi man,NIE Zuo ren,ZHANG Jiu xing,ZUO Tie yong.Chemical stability of La_2O_3 in La_2O_3-Mo cathode materials[J].Transactions of Nonferrous Metals Society of China,2001(5). |
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| Authors: | WANG Jin-shu ZHOU Mei ling WANG Yi man NIE Zuo ren ZHANG Jiu xing ZUO Tie yong |
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| Abstract: | Chemical stability of La 2O 3 in carbonized and uncarbonized La 2O 3 Mo cathodes was studied by in situ XPS analysis. Experimental results show that chemical stability of La 2O 3 is not good enough. In vacuum and at high temperature, oxygen can be dissociated from the lattice of La 2O 3 in the uncarbonized La 2O 3 Mo cathode. Binding energy shifts of La?3d5/2 and La?3d3/2 core peaks, and obvious decrease of satellite peak intensity in La?3d doublet with increasing temperature show that metallic La appears at carbonized La 2O 3 Mo cathode surface at high temperature. |
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| Keywords: | lanthanum chemical state La 2O 3 Mo cathode XPS |
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