| CO_2加氢制甲醇用碳纳米管促进的高效新型CuO-ZnO-ZrO_2基催化剂 |
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| 引用本文： | 刘志铭,林国栋,张鸿斌.CO_2加氢制甲醇用碳纳米管促进的高效新型CuO-ZnO-ZrO_2基催化剂[J].厦门大学学报(自然科学版),2010,49(3). |
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| 作者姓名： | 刘志铭 林国栋 张鸿斌 |
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| 作者单位： | 厦门大学,化学化工学院,固体表面物理化学国家重点实验室,醇醚酯化工清洁生产国家工程实验室,福建,厦门,361005 |
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 用一种金属Co修饰多壁碳纳米管基复合材料(y%Co/CNT)作为促进剂,制备一种高效新型的y%Co/CNT促进CuO-ZnO-ZrO2基催化剂(记为CuiZnjZrk-x%(y%Co/CNT)),考察其对CO2加氢制甲醇的催化性能.实验结果显示,在组成经优化的Cu8Zn2Zr5-10%(4.5%Co/CNT)催化剂上,5.0 MPa,523 K,V(H2)∶V(CO2)∶V(N2)=69∶23∶8,GHSV=25 000 mL/(h.g)的反应条件下,CO2加氢的转化频率达4.99×10-3s-1,分别是相同条件下非促进的原基质Cu8Zn2Zr5和单纯CNT促进的对应物Cu8Zn2Zr5-10%CNT上的相应值(4.31×10-3和4.64×10-3s-1)的1.16和1.08倍;催化剂的表征结果显示,金属Co修饰CNT促进的催化剂对H2优良的吸附活化性能对CO2加氢转化频率(TOF)的显著提高起主要作用.在CO2加氢产物中甲醇的C-基选择性达97.9%,单程时空产率为699 mg/(h.g),具有实用前景.
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| 关 键 词： | Co修饰碳纳米管基复合材料 CuiZnjZrk-x％(y％Co/CNT)催化剂 CO2加氢 甲醇合成 |
A Novel Co-decorated CNT-promoted CuO-ZnO-ZrO2 Catalyst for CO2 Hydrogenation to Methanol |
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| LIU Zhi-ming,LIN Guo-dong,ZHANG Hong-bin.A Novel Co-decorated CNT-promoted CuO-ZnO-ZrO2 Catalyst for CO2 Hydrogenation to Methanol[J].Journal of Xiamen University(Natural Science),2010,49(3). |
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| Authors: | LIU Zhi-ming LIN Guo-dong ZHANG Hong-bin |
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| Institution: | LIU Zhi-ming,LIN Guo-dong,ZHANG Hong-bin(College of Chemistry and Chemical Engineering,State Key Laboratory of Physical Chemistry of Solid Surfaces,National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,Xiamen University,Xiamen 361005,China) |
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| Abstract: | |
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| Keywords: | Co-decorated CNT-based composite materials CuiZnjZrk-x%(y%Co/CNT) catalysts CO2 hydrogenation methanol synthesis |
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