化学镀法制备Ni_(3)P/γ-Al_(2)O_(3)用于催化肉桂醛选择加氢的研究  

Preparation of Ni_(3)P/γ-Al_(2)O_(3) catalyst by electroless plating and application in selective hydrogenation of cinnamaldehyde

作　　者：黄卉 遇治权[1] 张朋[1] 王瑶[1,2] 刘颖雅 孙志超 王安杰[1,2] HUANG Hui;YU Zhi-quan;ZHANG Peng;WANG Yao;LIU Ying-ya;SUN Zhi-chao;WANG An-jie(State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024,China;Liaoning Provincial Key Laboratory of Petrochemical Technology and Equipment,Dalian 116024,China)

机构地区：[1]大连理工大学精细化工国家重点实验室,辽宁大连116024 [2]辽宁省省级高校石油化工技术与装备重点实验室,辽宁大连116024

出　　处：《现代化工》2022年第12期102-107,113,共7页Modern Chemical Industry

基　　金：国家自然科学基金(22172012,22172015,21972014,U1508205);科技部国家重点研发计划(2016YFE0109800)。

摘　　要：采用“沉积沉淀-化学镀”法制备了Ni_(3)P/γ-Al_(2)O_(3)催化剂,利用X射线衍射(XRD)、N_(2)-物理吸附和透射电镜(TEM)对催化剂进行表征。考察了催化剂制备条件以及反应条件对Ni_(3)P/γ-Al_(2)O_(3)催化肉桂醛(CAL)选择加氢反应性能的影响。结果表明,负载量为25%、镀液pH为5.5制备的催化剂前体,经400℃下H_(2)热处理后获得的催化剂具有最高的苯丙醛(HCAL)收率。在70℃和1.0 MPa H_(2)下反应1 h,肉桂醛转化率为93.7%,苯丙醛选择性为90.1%。Ni_(3)P/γ-Al_(2)O_(3)catalysts are prepared through deposition-precipitation followed by electroless plating, and characterized by means of powder X-ray diffraction(XRD),N_(2)-adsorption/desorption isotherms, and transmission electron microscope(TEM).The effects of catalyst preparation conditions and reaction conditions on the performance of Ni_(3)P/γ-Al_(2)O_(3)in selective hydrogenation of cinnamaldehyde are investigated.The results show that a thermal treatment to the catalyst precursor prepared with a loading of 25 wt%,and pH of 5.5 in H_(2)at 400℃ can lead to a highly dispersed Ni_(3)P/γ-Al_(2)O_(3)catalyst, which affords the highest yield to hydrocinnamaldehyde.The conversion of cinnamaldehyde is 93.7% and the selectivity of hydrocinnamaldehyde is 90.1% after the reaction has performed at 70℃ and 1.0 MPa H_(2)for 1 h.

关 键 词：磷化镍 氧化铝 化学镀法 肉桂醛 选择加氢 

分 类 号：TQ426[化学工程]