| 碳纳米管负载金属氮化物催化剂的制备及其性能研究 |
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| 引用本文： | 赵朝晖,邹汉波,陈胜洲,林珊瑜,林维明.碳纳米管负载金属氮化物催化剂的制备及其性能研究[J].功能材料,2010,41(2). |
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| 作者姓名： | 赵朝晖 邹汉波 陈胜洲 林珊瑜 林维明 |
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| 作者单位： | 1. 华南理工大学,化学与化工学院,广东,广州,510641;广州大学,化学化工学院,广东,广州,510006
2. 广州大学,化学化工学院,广东,广州,510006 |
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| 基金项目： | 国家自然科学基金资助项目(20806017);;广州市教育局科技计划资助项目(08C085) |
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| 摘 要： | 采用等体积浸渍法结合程序升温还原技术制备出一系列负载型过渡金属氮化物催化剂。利用XRD、BET、TPR等表征手段,结合氨分解制氢反应,研究了它们的表面性质和反应性能。发现改性碳纳米管负载的氮化钴催化剂具有较大的比表面积,对氨分解制氢反应的催化活性最高。新鲜态CoNx/CNTs催化剂的比表面积可达151.85m2/g,在650℃时氨转化率为80.3%,850℃达到完全转化。
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| 关 键 词： | 金属氮化物 碳纳米管 氨分解 |
Study on preparation and catalytic performance of transition metals nitrides over carbon nanotube |
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| ZHAO Zhao-hui,ZOU Han-bo,CHEN Sheng-zhou,LIN Shan-yu,LIN Wei-ming.Study on preparation and catalytic performance of transition metals nitrides over carbon nanotube[J].Journal of Functional Materials,2010,41(2). |
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| Authors: | ZHAO Zhao-hui ZOU Han-bo CHEN Sheng-zhou LIN Shan-yu LIN Wei-ming |
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| Affiliation: | 1.School of Chemistry and Chemical Engineering;South China University of Technology;Guangzhou 510641;China;2.School of Chemistry and Chemical Engineering;Guangzhou University;Guangzhou 510006;China |
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| Abstract: | Several transition metals nitrides over carbon nanotube were synthesized through impreganation methods and temperature-programmed reaction in N_2-H_2 mixture gases.The surface composition and reaction performance were investigated by XRD,BET,H_2-TPR techniques.The results show that the CoN_x/CNTs exhibited higher surface area and optimum catalytic activity for ammonia decomposition.The BET surface area of CoN_x/CNTs could be up to 151.85m~2/g.The ammonia conversion was 80.3% at 650℃,and complete decomposition of ammonia was observed at 850℃. |
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| Keywords: | carbon nanotubes ammonia decomposition transition metals nitrides |
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