Ni助剂对Co/AC催化CO加氢制高碳醇性能的影响  

Effect of Ni doping on the catalytic performance of Co/AC for higher alcohol synthesis from CO hydrogenation

作　　者：吴桐 赵子昂 李怡蕙 朱何俊[2] 李阳 王加升 包明[1] 丁云杰[2,4] WU Tong;ZHAO Ziang;LI Yihui;ZHU Hejun;LI Yang;WANG Jiasheng;BAO Ming;DING Yunjie(State Key Laboratory of Fine Chemicals,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;Dalian National Laboratory for Clean Energy,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China;Universityof ChineseAcademyof Sciences,Beijing100049,China;State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China)

机构地区：[1]大连理工大学化工学院精细化工国家重点实验室,辽宁大连116024 [2]中国科学院大连化学物理研究所,洁净能源国家实验室(筹),辽宁大连116023 [3]中国科学院大学,北京100049 [4]中国科学院大连化学物理研究所催化基础国家重点实验室,辽宁大连116023

出　　处：《分子科学学报》2024年第1期33-38,共6页Journal of Molecular Science

基　　金：supported by the National Key R&D Program of China(2017YFB0602500);the Strategic Priority Research Program of the Chinese Academy of Sciences(XDA21020200);the National Natural Science Foundation of China(22002151,22278063)。

摘　　要：研究了Ni助剂对于调变Co/AC催化剂表面富碳缺氢化学环境的作用,考察了Ni掺杂对CO加氢反应性能的影响。采用物理吸附、程序升温还原、化学吸附、高分辨透射电子显微镜(HRTEM)、X-射线衍射(XRD)和X-射线光电子能谱(XPS)对催化剂进行了表征。结果表明Co/AC催化剂中掺杂Ni助剂后,随着Ni助剂质量分数由0%增加至3%,C6+高碳醇在醇类产物的分布由31.3%提高至51.7%。Ni掺杂为促进高碳醇的醇分布提供了新思路。The production of higher alcohols using Co/AC catalysts is difficult due to the strong CO adsorption capacity and weak H_(2) adsorption capacity of the catalyst.To address this issue,we incorporated metal Ni,which has a strong H_(2) adsorption capacity,to enhance the catalyst's adsorption capacity for H_(2),and explore the effect of Ni on the hydrogenation of Co/AC to produce higher alcohols.By combining X-ray diffraction,physical adsorption,chemical adsorption,and other characteristics,we were able to examine the role of Ni in Co/AC catalyst.Our results indicated that with the incorporation of 3%Ni promoter content,the distribution of higher alcohols in the alcohol products increased from 31.3%to 51.7%.The addition of Ni provided a new way to promote the distribution of higher alcohols.The incorporation of Ni with Co/AC catalysts is a promising approach to enhance the performance of the catalyst and promote the distribution of higher alcohols,which in turn will contribute towards achieving these objectives.

关 键 词：CO加氢 Co/AC催化剂 高碳醇 Ni掺杂 

分 类 号：TQ223.1[化学工程—有机化工] O643.36[理学—物理化学]