| CO2/H2在不同形态ZrO2上的吸附行为 |
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| 引用本文： | 马中义,杨成,董庆年,魏伟,李文怀,孙予罕.CO2/H2在不同形态ZrO2上的吸附行为[J].物理化学学报,2005,21(2):225-228. |
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| 作者姓名： | 马中义 杨成 董庆年 魏伟 李文怀 孙予罕 |
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| 作者单位： | StateKeyLaboratoryofCoalConversion,InstituteofCoalChemistry,ChineseAcademyofSciences,Taiyuan 030001;GraduateSchoolofChineseAcademyofSciences,Beijing 100039 |
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| 基金项目： | 国家基础重大项目计划(G1999022400)，中科院知识创新工程(KGCX2-302)资助项目~~ |
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| 摘 要： | 利用傅立叶变换红外光谱技术(FT-IR)考察了CO2和CO2＋H2在不同形态氧化锆上的吸附和转化行为，结果表明,氧化锆的形态影响CO2的吸附形式和表面物种的生成.无定型氧化锆上主要生成碳酸氢盐和离子碳酸盐，单斜氧化锆上还出现了双齿碳酸盐，而在四方氧化锆上出现最强的线式吸附CO2，并生成聚碳酸盐.在氢气存在的条件下，单斜氧化锆上生成甲烷而在四方氧化锆上则生成甲酸盐.
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| 关 键 词： | 氧化锆 FT-IR CO2吸附 CO2＋H2 |
| 收稿时间： | 2004-08-04 |
| 修稿时间： | 2004年8月4日 |
A Study of CO2/H2 Adsorption on Zirconia Polymorphs |
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| MA,Zhong-Yi , YANG,Cheng DONG,Qing-Nian WEI,Wei LI,Wen-Huai SUN,Yu-Han.A Study of CO2/H2 Adsorption on Zirconia Polymorphs[J].Acta Physico-Chimica Sinica,2005,21(2):225-228. |
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| Authors: | MA Zhong-Yi YANG Cheng DONG Qing-Nian WEI Wei LI Wen-Huai SUN Yu-Han |
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| Institution: | StateKeyLaboratoryofCoalConversion,InstituteofCoalChemistry,ChineseAcademyofSciences,Taiyuan 030001;GraduateSchoolofChineseAcademyofSciences,Beijing 100039 |
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| Abstract: | The adsorption behaviors of CO 2 and CO 2 H 2 on zirconia polymorphs were investigated by FT-IR technique.The results showed that a bsorbed CO 2 and surface intermediates varied wi th zirconia polymorphs.Bicarbonate and ion carbonate species were detected on amorphous zirconia.In addition to the two species,bidented carbonate was also formed o n monoclinic zirconia.The strongest adsorbed CO 2 and polydentate car-bonate species were found on tetrago nal zirconia.In the case of CO 2 hydrogenation,methane was formed o n monoclinic zirconia while formate s pecies was observed on tetragonal zirconia. |
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| Keywords: | Zirconia FT-IR CO 2 adsorption CO 2 H 2 |
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