| 水在金属氧化物表面的吸附与解离 |
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| 引用本文： | 郭沁林.水在金属氧化物表面的吸附与解离[J].物理,2011,40(5). |
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| 作者姓名： | 郭沁林 |
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| 作者单位： | 中国科学院物理研究所,北京,100190 |
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| 基金项目： | 国家自然科学基金，中国科学院知识创新工程 |
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| 摘 要： | 水(H2O)由H原子和O原子组成.地球上有大量的水,若能找到一种经济、实用的方法将H2O解离生成H2和O2,则在新能源的开发和应用方面,意义深远.水在固体表面的吸附现象极为普遍,在某些金属或金属氧化物表面,H2O被吸附并解离成OH-和H+.文章以有序氧化镁(MgO(100))薄膜和Pd/MgO(100)体系为例,在超高真空条件下,用光电子能谱和高分辨电子能量损失谱方法,研究了水在它们表面的吸附与解离.研究结果表明,H2O在MgO(100)表面可以被部分解离,而H2O在Pd/MgO(100)表面的解离与Pd的含量有关.了解水与固体表面的相互作用机理还需要做更多的基础研究工作.
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| 关 键 词： | 水吸附 水解离 金属氧化物薄膜 表面分析 |
Adsorption and dissociation of water on metal oxides |
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| GUO Qin-Lin.Adsorption and dissociation of water on metal oxides[J].Physics,2011,40(5). |
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| Authors: | GUO Qin-Lin |
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| Abstract: | Water consists of H and O atoms. It is most important to find an efficient and economic method to dissociate H2O to obtain H2. The adsorption of H2O on solid surfaces is commonly observed,and on the surfaces of certain metals or metal oxides the adsorbed H2O can be dissociated. This paper presents some results on the adsorption and dissociation of H2O on MgO (100) films and Pd/MgO (100) surfaces investigated under ultrahigh vacuum conditions by using photoemission spectroscopy and high resolution electron e... |
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| Keywords: | water adsorption water dissociation metal oxide films surface analysis |
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