NiB非晶合金的制备及其催化噻吩加氢脱硫性能  

Preparation of amorphous NiB alloy and its catalytic performance for thiophene hydrodesulfurization

作　　者：何萍[1] 邓书平[1] 高爽[1] 潘懿[1] 陈晓陆[1] 张京京[1] HE Ping;DENG Shu-ping;GAO Shuang;PAN Yi;CHEN Xiao-lu;ZHANG Jing-jing(College of Chemistry and Environmental Engineering,Yingkou Institute of Technology,Yingkou 115014,China)

机构地区：[1]营口理工学院化学与环境工程学院,辽宁营口115014

出　　处：《现代化工》2025年第3期137-140,146,共5页Modern Chemical Industry

基　　金：辽宁省区域创新发展联合基金(2022-YKLH-11);辽宁省教育厅科学研究经费项目(LJKZ1203);辽宁省自然科学基金联合基金(面上资助计划项目)(2023-MSLH-322)。

摘　　要：采用反相微乳液法和化学还原法制备了4种NiB非晶态合金和负载型NiB非晶态合金催化剂,通过XRD、H_(2)程序升温脱附(H_(2)-TPD)、XPS、SEM、TEM、电感耦合等离子体发射光谱(ICP-OES)、N_(2)吸附-脱附对催化剂进行表征,并考察了噻吩加氢脱硫反应中催化剂的催化性能。结果表明,反相微乳液法制备的NiB-RM催化剂能有效抑制颗粒团聚,更利于保持Ni物种以Ni^(0)的形态存在,活性中心数量较多,催化活性更高。负载型非晶态合金催化剂中NiB/HZSM-5-RM催化剂中Ni质量分数较高,且多数以Ni^(0)的形态存在,尽管比表面积低于NiB/HMCM-22-RM,仍具有较高的催化活性,噻吩转化率达到94.8%。Four kinds of amorphous NiB alloy and supported amorphous NiB alloy catalysts are prepared through a reverse-phase microemulsion method and a chemical reduction method,respectively,and characterized by means of XRD,H_(2)-TPD,XPS,SEM,TEM,ICP-OES and N_(2)adsorption-desorption.The catalytic performance of the catalysts in thiophene hydrodesulfurization is tested.Results show that NiB-RM catalyst prepared by reverse-phase microemulsion method can effectively inhibit particle agglomeration,which is more conducive to maintaining the existence of Ni species in the form of Ni^(0),with a larger number of active centers and higher catalytic activity.Among the supported amorphous alloy catalysts,NiB/HZSM-5-RM catalyst contains more Ni,and most of them exist in the form of Ni^(0).Although the specific surface area of NiB/HZSM-5-RM is lower than that of NiB/HMCM-22-RM,it still has a high catalytic activity,catalyzing thiophene to reach a conversion rate of 94.8%.

关 键 词：非晶合金 噻吩 加氢脱硫 微乳液 

分 类 号：O643.38[理学—物理化学]