Investigation of chemical decomposition of CCl4 on TiO2 near room temperature

Lin YS; Chen MT; Lin YF; Yang SJ; Lin JL

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Investigation of chemical decomposition of CCl4 on TiO2 near room temperature

机译：室温下TiO2上CCl4的化学分解研究

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Dissociative adsorption of CCl4 on TiO2 at 35 degrees C has been studied by Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, and electron spin resonance. CCl4 decompose to form CO, CO2, and CO3 on the surface, at such a low temperature, in which CO2 formation is not from CO oxidation on TiO2, but CO3 can be produced by CO and CO2 adsorption. The Cl generated from CCl4 decomposition is left on the surface and bonded to titanium ions. Mineralization of CCl4 on TiO2 involves the lattice oxygens. Thermodynamical driving force and possible reaction routes for CO and CO2 formation in the CCl4 decomposition on TiO2 are discussed. (c) 2005 Elsevier B.V. All rights reserved.

机译：通过傅里叶变换红外光谱，X射线光电子能谱和电子自旋共振研究了35℃下CCl4在TiO2上的解离吸附。在如此低的温度下，CCl4分解以在表面上形成CO，CO2和CO3，其中CO2的形成不是由TiO2上的CO氧化形成，而是可以通过CO和CO2的吸附来产生。 CCl4分解产生的Cl留在表面上并与钛离子结合。 TiO2上CCl4的矿化涉及晶格氧。讨论了在TiO2上CCl4分解中CO和CO2形成的热力学驱动力和可能的反应路线。（c）2005 Elsevier B.V.保留所有权利。

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来源
《Applied Surface Science》 |2006年第16期|p. 5892-5899|共8页
作者
Lin YS; Chen MT; Lin YF; Yang SJ; Lin JL;
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作者单位

Natl Cheng Kung Univ, Dept Chem, Tainan 701, Taiwan;

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原文格式 PDF
正文语种 eng
中图分类应用物理学;
关键词
Fourier-transform infrared spectroscopy; X-ray photoelectron spectroscopy; CCl4; TiO2; METHANOL AEROGEL CATALYSTS; ULTRAFINE NANOSCALE PARTICLES; DESTRUCTIVE ADSORPTION; CARBON-TETRACHLORIDE; TITANIUM-DIOXIDE; HYDROXYL GROUPS; CALCIUM-OXIDE; COPPER-OXIDE; INFRA-RED; SURFACE;

机译：傅里叶变换红外光谱;X射线光电子能谱;CCl4;TiO2;甲醇气凝胶催化剂;超细纳米颗粒;破坏性吸附;碳-四氯化物;二氧化钛;羟基;氧化钙;氧化铜表面;

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Investigation of chemical decomposition of CCl4 on TiO2 near room temperature

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