文章摘要
Ni2P/Fe-HAP催化剂的表征及其苯酚加氢表面作用机理
Characterization of Ni2P/Fe-HAP Catalyst and Its Surface Interaction Mechanism in Phenol Hydrogenation
投稿时间:2019-12-19  修订日期:2020-03-19
DOI:
中文关键词: Fe-HAP改性载体  催化加氢  苯酚  环己酮  作用机理
英文关键词: Fe-HAP modified support  catalytic hydrogenation  phenol  cyclohexanone  interaction mechanism
基金项目:西安石油大学研究生创新与实践能力培养立项项目(YCS17211018,YCS19112033)
作者单位E-mail
徐海升 西安石油大学 xhs74@xsyu.edu.cn 
何丽娟 西安石油大学  
黄国强 西安石油大学  
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中文摘要:
      以市售低品级羟基磷灰石(HAP)为原料,通过离子交换法合成载体Fe-HAP,然后用浸渍法制备出负载型Ni2P/HAP和Ni2P/Fe-HAP催化剂。通过N2吸附-脱附、扫描电子显微镜(SEM)、X射线衍射(XRD)、傅里叶变换红外光谱(FT-IR)和热重(TG)等手段对催化剂进行了表征。引入Fe3+极大地提高了载体的比表面积,Ni2P分散在Fe-HAP表面,热稳定性较好。以苯酚加氢制备环己酮为反应体系,在反应温度为150℃、压力为0.5MPa、时间为3.5h的条件下,对比了Ni2P/HAP和Ni2P/Fe-HAP催化剂的催化性能。结果发现,Ni2P/Fe-HAP催化剂显示出良好的催化活性和环己酮选择性。
英文摘要:
      The carrier Fe-HAP was synthesized by ion exchange method using commercially available low-grade HAP as raw material, and then supported Ni2P/HAP and Ni2P/Fe-HAP catalysts were prepared by impregnation method. The catalyst was characterized by N2 adsorption-desorption, scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and thermogravimetry (TG). Doping Fe3+ greatly increases the specific surface area of the carrier, Ni2P dispersed on the surface of Fe-HAP and good thermal stability. The reaction system was prepared by hydrogenation of phenol to cyclohexanone. The catalytic performance of Ni2P/HAP and Ni2P/Fe-HAP catalysts was compared using cyclohexanone prepared from phenol hydrogenation as the reaction system at a reaction temperature of 150 ° C, a pressure of 0.5 MPa, and a time of 3.5 h. It was found that the Ni2P/Fe-HAP catalyst showed good catalytic activity and cyclohexanone selectivity.
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