| NO和O2在Pt(110)面上吸附的TDS和PEEM研究 |
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| 引用本文： | 李金兵,黄伟新,曹玉明,翟润生,包信和.NO和O2在Pt(110)面上吸附的TDS和PEEM研究[J].催化学报,1998,19(6):494-497. |
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| 作者姓名： | 李金兵 黄伟新 曹玉明 翟润生 包信和 |
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| 作者单位： | 中国科学院大连化学物理研究所催化基础国家重点实验室 |
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| 摘 要： | 采用热脱附和光电子发射普微镜研究了Ｏ２和ＮＯ在Ｐｔ（１１０）面上的吸附和共吸附。结果表明，室温条件下，ＮＯ在Ｐｔ（１１０）面上有端式和桥式两种不同的吸附方式。Ｐｔ（１１０）表面预吸附的原子态氧占据了ＮＯ进入了桥式吸附的活性粒，从而阻遏了ＮＯ在Ｐｔ表面发生解离反应必须经过的桥式吸附中间态的形式，进而降低了ＮＯ在Ｐｔ表面直接分散的能力。
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| 关 键 词： | NO O2 Pt 吸附 TDS PEEM |
| 收稿时间： | 1998-12-25 |
STUDY OF ADSORPTION OF NITRIC OXIDE AND OXYGEN ON Pt(110) SURFACE BY TDS AND PEEM |
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| Li Jinbing,Huang Weixin,Cao Yuming,Zhai Runsheng,Bao Xinhe.STUDY OF ADSORPTION OF NITRIC OXIDE AND OXYGEN ON Pt(110) SURFACE BY TDS AND PEEM[J].Chinese Journal of Catalysis,1998,19(6):494-497. |
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| Authors: | Li Jinbing Huang Weixin Cao Yuming Zhai Runsheng Bao Xinhe |
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| Abstract: | The adsorption and coadsorption of oxygen and nitric oxide on Pt(110) surface have been investigated by temperature desorption spectroscopy (TDS) and photoemission electron microscope (PEEM). The adsorption of nitric oxide on Pt(110) surface at elevated temperatures gives rise to two different adsorbed species, bridge bonded nitric oxide and terminally bonded nitric oxide. Atomic oxygen preadsorbed on the Pt(110) surface blocks the active sites for forming the bridge bonded nitric oxide and consequently decreases the ability of Pt(110) to directly dissociate nitric oxide. |
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| Keywords: | Nitric oxide Oxygen Platinum Adsorption Decomposition |
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