Synthesis and characterization of Pd/ZSM-5/MCM-48 biporous catalysts with superior activity for benzene oxidation
文献类型：期刊论文
| 作者 | He, Chi; Li, Peng; Cheng, Jie; Wang, Hailin; Li, Jinjun; Li, Qin; Hao, Zhengping |
| 刊名 | APPLIED CATALYSIS A-GENERAL
 |
| 出版日期 | 2010-07-15 |
| 卷号 | 382期号:2页码:167-175 |
| 关键词 | In situ overgrowth ZSM-5/MCM-48 Acidity Superior activity VOCs |
| 中文摘要 | ZSM-5/MCM-48 composite materials with different acidities and enhanced thermal stability have been synthesized via a simple and reliable in situ overgrowth method. The as-prepared biporous materials and the Pd-impregnated catalysts were systematically investigated by various techniques, including XRD, ICP-OES, N(2) adsorption/desorption, H(2) chemisorption, SEM, TEM/HRTEM, FT-IR, (27)Al MAS NMR, NH(3)-TPD, H(2)-TPR and XPS. The characterization results reveal that all composite catalysts exhibit high surface area, large pore volume and long pore diameter. The quantity of acid sites increases as the ZSM-5 additive amount increases, and Al atoms are in the tetrahedral coordination positions in composite materials. The activity tests demonstrate that all the Pd-loaded catalysts are active in the total elimination of benzene, while the catalytic activity values of Pd-loaded ZSM-5/MCM-48 composite catalysts are much higher than those of Pd/ZSM-5 or Pd/MCM-48 alone. Both Pd(0) and Pd(2+) are responsible for the oxidation reaction, and the catalytic activities are primarily related to the support acidity and the Pd dispersion. In addition, the stability of the composite catalysts also improves with an appropriate amount of ZSM-5 additives in MCM-48. This research shows that the novel Pd-loaded composite catalysts are promising materials in the elimination of VOCs. (c) 2010 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000280016500004 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21195]  |
| 专题 | 生态环境研究中心_环境纳米材料实验室 |
| 推荐引用方式 GB/T 7714 | He, Chi,Li, Peng,Cheng, Jie,et al. Synthesis and characterization of Pd/ZSM-5/MCM-48 biporous catalysts with superior activity for benzene oxidation[J]. APPLIED CATALYSIS A-GENERAL,2010,382(2):167-175. |
| APA | He, Chi.,Li, Peng.,Cheng, Jie.,Wang, Hailin.,Li, Jinjun.,...&Hao, Zhengping.(2010).Synthesis and characterization of Pd/ZSM-5/MCM-48 biporous catalysts with superior activity for benzene oxidation.APPLIED CATALYSIS A-GENERAL,382(2),167-175. |
| MLA | He, Chi,et al."Synthesis and characterization of Pd/ZSM-5/MCM-48 biporous catalysts with superior activity for benzene oxidation".APPLIED CATALYSIS A-GENERAL 382.2(2010):167-175. |
入库方式： OAI收割
来源：生态环境研究中心
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