大孔主客体纳米催化材料的表征与评价  

Characterization and evaluation of macroprous host-guest nano catalytic materials

作　　者：石振[1] 赵杉林[1] 王鼎聪[2] 李萍[1] 

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001 [2]中国石化抚顺石油化工研究院

出　　处：《无机盐工业》2015年第4期71-74,共4页Inorganic Chemicals Industry

基　　金：中国石油化工集团公司资助项目(NO.030801)

摘　　要：运用低温氮气吸附法、X射线光电子能谱法(XPS)、红外光谱一氧化碳原位吸附等方法对根据3次纳米自组装机理制备的大孔主客体纳米催化材料进行表征分析。结果表明,主客体催化材料的物性较优异;红外光谱的分析结果表明,一氧化碳在主客体催化材料表面的吸附主要表现为线式一氧化碳吸附态,共浸剂含量的增加有助于活性组分钼与载体之间发生强相互作用和催化材料的变换活性;而XPS则印证了活性金属钼在氧化态时以正六价的形式存在而硫化态则以正四价或低价钼的形式存在;并可知当共浸剂的含量由基准+20增加到基准+30后,催化材料中四价钼的比例由73.63%增加到80.01%;加氢评价表明催化材料FA70-Z30的HDS、HDN、HDAr转化率可达81.3%、47.6%、55.8%,其具有较好的抑制结焦和加氢性能。Low-temperature nitrogen adsorption method, XPS, and FT-IR spectroscopy of adsorbed CO techniques were used to analyze the macroporous host-guest catalytic materials prepared according to the principle of the third nano self-assembly. Result showed that the host-guest catalytic materials had excellent physical properties.The analysis of infrared spectra indicated,the series of host-guest nano catalytic materials mainly for line type CO adsorption state and with the increase of co-infusion agent,it was helpful for the strong interaction between the catalyst and the active component Mo and Ni conversion activity;while XPS confirmed from the side of the valence sulfides in Mo and its existing forms, when the content of co-infusion agent increased from criterion＋20 to criterion＋30,the proportion of Mo4＋ increased from 75.63% to 80.01% ; The catalytic material FAT0-Z30＇s hydrogenation evaluation showed that the conversation rates of HDS, HDN, and HDAr reached 81.3%, 47.6%, and 55.8%, respectively, and it had a better coking inhibition and hydrogenation performance.

关 键 词：3次纳米自组装 主客体催化材料 共浸剂 反应活性 

分 类 号：TQ426[化学工程]