| 载体TiO2对Co-P非晶态合金性质的影响 |
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| 引用本文： | 韩长秀,林徐明,张宝贵.载体TiO2对Co-P非晶态合金性质的影响[J].化学学报,2007,65(9):793-797. |
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| 作者姓名： | 韩长秀 林徐明 张宝贵 |
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| 作者单位： | 南开大学环境科学与工程学院,天津,300071 |
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| 基金项目： | 天津市自然科学基金(No.043801311)资助项目. |
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| 摘 要： | 用还原沉积法分别合成了纯态Co-P非晶态合金和一种新型负载非晶态合金催化剂CoP/TiO2, 用XRD, ICP, TEM, BET和DSC等手段对催化剂的物理性质进行了表征, 比较了它们的结构、组成、形貌、表面积及热稳定性等物理性质及其对PH3分解的催化活性. 与纯态Co-P非晶态合金比较, CoP/TiO2具有更大的表面积和较高的热稳定性及催化活性, 这缘于TiO2载体与催化剂的相互作用以及载体对Co-P良好的分散性能.
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| 关 键 词： | 非晶态合金 钴磷合金 TiO2 负载型催化剂 |
| 收稿时间： | 2006-11-9 |
| 修稿时间： | 2006-11-092007-02-07 |
Effect of Support TiO2 on the Characteristics of Co-P Amorphous Alloy |
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| HAN,Chang-Xiu,LIN,Xu-Ming,ZHANG,Bao-Gui.Effect of Support TiO2 on the Characteristics of Co-P Amorphous Alloy[J].Acta Chimica Sinica,2007,65(9):793-797. |
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| Authors: | HAN Chang-Xiu LIN Xu-Ming ZHANG Bao-Gui |
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| Institution: | (College of Environmental Science & Engineering, Nankai University, Tianjin 300071) |
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| Abstract: | Co-P amorphous alloy and a new supported Co-P amorphous alloy catalyst CoP/TiO2 were pre-pared respectively by reduction-chemical deposition method. The physical properties of the alloy catalysts were characterized by XRD,ICP,TEM,BET and DSC. The structure,composition,shape,surface area and thermal stabilities of Co-P and CoP/TiO2 were compared. Besides,their catalytic activities for PH3 decom-position were compared,too. Compared with Co-P particles,CoP/TiO2 has bigger surface area,higher ther-mal stability and catalytic activity,which was attributed to interaction of TiO2 support and catalyst and high dispersion of Co-P alloy particles on the support of TiO2. |
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| Keywords: | amorphous alloy Co-P alloy titania supported catalyst |
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