| 双金属催化剂Pd-Co_y/Al_2O_3的协同催化性能研究 |
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| 引用本文： | 谢继阳,王红琴,周伟,初铭月,安霓虹,戴云生.双金属催化剂Pd-Co_y/Al_2O_3的协同催化性能研究[J].贵金属,2018,39(3):7-13. |
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| 作者姓名： | 谢继阳 王红琴 周伟 初铭月 安霓虹 戴云生 |
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| 作者单位： | 贵研铂业股份有限公司稀贵金属综合利用新技术国家重点实验室贵研工业催化剂(云南)有限公司 |
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| 基金项目： | 国家自然科学基金(21763014)。 |
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| 摘 要： | 通过等体积浸渍法制备了单金属Pd/Al_2O_3催化剂和双金属Pd-Coy/Al_2O_3催化剂,并用于催化2-乙基蒽醌加氢反应。利用N2吸脱附、ICP-AES、XRD、CO化学吸附、TEM、EDX、XPS等表征催化剂的比表面、物相结构以及电子结构。加氢结果发现与单金属Pd/Al_2O_3催化剂相比,双金属Pd-Co0.2/Al_2O_3催化剂加氢效率从11.8 g/L提高到13.5 g/L,选择性从87.2%提高到95.2%。从XPS表征结果发现,催化剂掺杂Co后,一部分Pd颗粒将电子转移到氧化的Co上,形成Pd-Coδ+结构。由羰基活化机理可知,Coδ+吸附C=O中氧的孤对电子,活化C=O,使得C=O加氢反应变得更容易,从而Pd-Co催化剂表现出高催化效率。
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| 关 键 词： | 催化化学 2-乙基蒽醌 加氢 催化剂 钯 钴 协同作用 |
| 收稿时间： | 2017/12/28 0:00:00 |
Study on Synergistic Catalytic Performance of Bimetallic Catalyst Pd-Coy/Al2O3 |
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| XIE Jiyang,WANG Hongqin,ZHOU Wei,CHU Mingyue,AN Nihong and DAI Yunsheng.Study on Synergistic Catalytic Performance of Bimetallic Catalyst Pd-Coy/Al2O3[J].Precious Metals,2018,39(3):7-13. |
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| Authors: | XIE Jiyang WANG Hongqin ZHOU Wei CHU Mingyue AN Nihong and DAI Yunsheng |
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| Affiliation: | State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Sino-Platinum Industrial Catalyst Yunnan Co. Ltd., Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Sino-Platinum Industrial Catalyst Yunnan Co. Ltd., Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Sino-Platinum Industrial Catalyst Yunnan Co. Ltd., Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Sino-Platinum Industrial Catalyst Yunnan Co. Ltd., Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Sino-Platinum Industrial Catalyst Yunnan Co. Ltd., Kunming 650106, China and State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Sino-Platinum Industrial Catalyst Yunnan Co. Ltd., Kunming 650106, China |
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| Abstract: | |
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| Keywords: | catalytic chemistry 2-ethyl-anthraquinon hydrogenation catalyst palladium cobalt synergistic effect |
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