超细非晶态合金NiB催化剂的制备、表征及其催化加氢性能  

Preparation and Characterization of Ultrafine Amorphous NiB Catalyst and Its Catalytic Performance in Hydrogenation

作　　者：乔卫叶 袁洪晶 白红存[2] 郝永超 张晓楠 高雯 李怡霖 霍维涛 QIAO Weiye;YUAN Hongjing;BAI Hongcun;HAO Yongchao;ZHANG Xiaonan;GAO Wen;LI Yilin;HUO Weitao(Chemistry and Chemical Engineering College,Xingtai University,Xingtai 054000,China;State Key Laboratory of High-Efficiency Coal Utilization and Green Chemical Engineering,Ningxia University,Yinchuan 750021,China;College of Foreign Languages,Hebei University of Technology,Tianjin 300400,China)

机构地区：[1]邢台学院化学与化工学院,河北邢台054000 [2]宁夏大学省部共建煤炭高效利用与绿色化工国家重点实验室,宁夏银川750021 [3]河北工业大学外国语学院,天津300400

出　　处：《石油学报（石油加工）》2019年第5期868-873,共6页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：省部共建煤炭高效利用与绿色化工国家重点实验室开放课题(2016-10);河北省教育厅高校科学技术研究青年基金项目(QN2017519);邢台市科技局青年科技人才资助项目(2017ZZ028);邢台市科技计划项目(2015ZC002)资助

摘　　要：采用化学还原法,通过在制备过程中加入KAl(SO 4)2和NaOH,制备了超细非晶态合金结构的NiB催化剂。Al(OH)3的生成是制备超细NiB催化剂的关键因素,且NiB的粒径随着Al(OH)3生成量的增加而减小。当Al/Ni摩尔比为1∶1时,该方法制备的NiB催化剂粒径约为未加入铝盐时的1/6。催化评价表明,在糠醛加氢和硝基苯加氢反应中,制备的NiB催化剂的活性随着制备过程Al(OH)3生成量的增加而增大。当Al/Ni摩尔比为1∶1时,NiB催化剂的催化活性为未加入铝盐时的3倍,其原因可以归于该方法制备的NiB催化剂小的粒径和大的比表面积。同时,采用含铝盐废液制备的NiB催化剂的催化结果表明,该方法制备过程的铝盐可以循环使用。A series of ultrafine amorphous alloy NiB catalysts were prepared by chemical reduction through introducing KAl(SO 4)2 and NaOH during preparation.The formation of Al(OH)3 is a key factor in preparing small particles,and the particle size of NiB is adjusted in certain range by changing the amount of Al(OH)3.When Al/Ni molar ratio is 1∶1,the particle size of prepared NiB is just one sixth of NiB without adding Al(OH)3.The NiB catalysts exhibit increased activity with the larger amount of Al(OH)3 in hydrogenation reactions.When Al/Ni molar ratio is 1∶1,the catalytic performance of corresponding NiB catalyst is three times as that of NiB without adding Al(OH)3 in the hydrogenation of furfural and nitrobenzene.The excellent catalytic performance of NiB catalyst is attributed to the smaller particle and higher surface area.Moreover,waste aluminum salt can be recycled in this preparation.

关 键 词：超细 硼化镍(NiB) 糠醛 硝基苯 加氢 

分 类 号：O643.3[理学—物理化学]