X射线光电子能谱对褐煤中碳氧形态的研究  

Study on Forms of Carbon and Oxygen in Lignites by X-ray Photoelectron Spectroscopy

作　　者：贺琼琼[1,2] 苗真勇[1,2] 万克记 黄少萌[1,2] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221008 [2]中国矿业大学国家煤加工与洁净化工程技术研究中心,江苏徐州221008

出　　处：《煤炭技术》2016年第1期298-300,共3页Coal Technology

基　　金：国家自然科学基金面上项目(51574239;51274197);国家重点基础研究发展计划(2012CB214900);国家自然科学基金委员会创新研究群体科学基金项目(50921002)

摘　　要：采用X射线光电子能谱(XPS)对中国和澳洲褐煤进行分析,XPS全图分析表明,胜利褐煤成分较为混杂,检测到C、O、Si、Al和Na元素;Loy Yang褐煤只检测到C和O元素,样品相对纯净。2种褐煤碳元素形态较为接近,不同形式碳元素含量由高到低依次为C-C、C-O、C=O和O=C-O。氧元素分布差别较大,胜利褐煤中C-O占绝大多数,C=O和O=C-O含量都很低;而Loy Yang褐煤中,O=C-O和C-O含量较为接近。X-ray photoelectron spectroscopy （XPS） was used to analyze the lignites from China and Australia. The full-scale results showed that C, O, Si, A1 and Na was detected in the Chinese lignite, which means the Chinese lignite sample was quite complicated because of the high ash content, while only C and O was detected in the Australian lignite. The forms of the carbon in the two lignites were quite similar, and order of the proportion was that： C-C 〉 C-O 〉 C=O 〉O=C-O. The occurrence of oxygen was quite different： most of the oxygen in Chinese lignite was C-O, whereas in Australian lignite, the content of C-O and C=O is close.

关 键 词：X射线光电子能谱 褐煤 碳 氧 分峰 

分 类 号：TQ531[化学工程—煤化学工程]