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原位漫反射红外光谱法研究N_2O和苯在Fe-ZSM-5分子筛表面的吸附 被引量：1

In situ diffuse reflectance Fourier transform infrared spectroscopy(in situ DRIFTS) investigation of N_2O and benzene adsorption on Fe-ZSM-5 zeolite
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摘要 利用原位漫反射红外光谱研究了不同条件下,N2O和苯在离子交换法制备的Fe-ZSM-5分子筛表面的吸附情况。实验结果表明:Fe-ZSM-5分子筛上B酸和铁离子对N2O有吸附作用;两种吸附位对N2O的吸附强度不同,B酸酸性位的吸附能力强于铁离子位对N2O的吸附能力;苯和N2O分子的吸附可以在不同形式的铁离子位进行;N2O为氧化剂的苯一步氧化制取苯酚反应遵循双活性位L-H反应机理。 The adsorption of N2O and benzene on the Fe-ZSM-5 zeolite prepared by liquid ion-exchange has been investigated by in situ diffuse reflectance Fourier transform infrared spectroscopy （in situ DRIFTS） under different conditions. It was found that N20 can be adsorbed on both the Br6nsted acid sites and the Fe^3＋-ion sites of the Fe-ZSM-5 zeolite, but that the affinity of the Br6nsted acid sites for N2O is higher than that of the Fe^3＋- ion sites. Benzene and N2O can be adsorbed on different Fe-ion sites. The results suggest that benzene and N2O react by a Langmuir-Hinshelwood mechanism in the selective oxidation of benzene to phenol.
作者 郭泉辉 李英霞 陈标华
机构地区 北京化工大学化工资源有效利用国家重点实验室
出处 《北京化工大学学报（自然科学版）》 EI CAS CSCD 北大核心 2007年第4期346-349,共4页 Journal of Beijing University of Chemical Technology(Natural Science Edition)
基金 中国石油天然气股份有限公司应用基础研究(040509-01-04)
关键词 N2O 苯 Fe-ZSM-5分子筛 吸附 原位漫反射红外光谱 N2O benzene Fe-ZSM-5 zeolite adsorption in situ DRIFTS
分类号 O434.14 [机械工程—光学工程]
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参考文献9

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同被引文献12

  • 1Asano K, Ohnishic, Iwamoto S, et al. Potassium-doped Co3 04 catalyst for direct decomposition of N20 [ J ]. Appl Catal B, 2008,78 (3/4) : 242 - 249.
  • 2Dacqu P, Dujard C, Granger P. Catalytic decomposition of N20 on supported Pd catalysts:support and thermal aging effects on the catalytic performances [ J ]. Catal Today, 2008, 137(2/4) :390 - 396.
  • 3Chen F Q, Do M H,Zheng W, et al. Catalytic reduction of N20 with CH4 over FeA1PO5 catalyst [ J ]. Catal Commun, 2008,9 ( 15 ) : 2481 - 2484.
  • 4I Ohnishi C, Asano K, Iwamoto S, et al. Alkali-doped C%O4 eatalysts for direct deeomposition of Nz O in the presence of oxygen [ J ]. Catal Today, 2007,120 ( 2 ) : 145 - 150.
  • 5Asano K, Ohnishi C, Iwamoto S, et al. Potassium-doped Co^3O^4 catalyst for direct decomposition of N20 [ J ]. Appl Catal B, 2008,78 (3/4) :242 - 249.
  • 6Dean J A. Lange's Handbook of Chemistry[ M]. 15th ed. New York : McGraw-Hill, 1999:318 - 322.
  • 7Abu-Zied B M, Soliman S A. Nitrous oxide decomposition over MCO3-Co3Q ( M =Ca, Sr, Ba) catalysts [ J ]. Catal Lett,2009,32(3/4) :299 - 310.
  • 8宋永吉,李翠清,王虹,董留涛.铜锌掺杂的六铝酸盐分解N_2O催化性能研究[J].工业催化,2008,16(10):172-175. 被引量：4
  • 9刘畅,薛莉,贺泓.碱土金属对钴铈复合氧化物催化剂催化N_2O分解的影响[J].物理化学学报,2009,25(6):1033-1039. 被引量：7
  • 10赵晓旭,程党国,陈丰秋,詹晓力.N_2O直接分解催化剂的研究进展[J].化工进展,2009,28(9):1562-1567. 被引量：14

引证文献1

北京化工大学学报（自然科学版）
2007年 第4期

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