首页|Ni助剂对Co/AC催化CO加氢制高碳醇性能的影响

Ni助剂对Co/AC催化CO加氢制高碳醇性能的影响

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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。
Effect of Ni doping on the catalytic performance of Co/AC for higher alcohol synthesis from CO hydrogenation
The production of higher alcohols using Co/AC catalysts is difficult due to the strong CO adsorp-tion capacity and weak H2 adsorption capacity of the catalyst.To address this issue,we incorporated metal Ni,which has a strong H2 adsorption capacity,to enhance the catalyst's adsorption capacity for H2,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 con-tent,the distribution of higher alcohols in the alcohol products increased from 31.3％to 51.7％.The ad-dition 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.

CO hydrogenationCo/AC catalysthigher alcoholNi doping

吴桐、赵子昂、李怡蕙、朱何俊、李阳、王加升、包明、丁云杰

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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

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

中国科学院大学,北京 100049

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

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CO加氢 Co/AC催化剂 高碳醇 Ni掺杂

National Key R&-D Program of ChinaStrategic Priority Research Program of the Chinese Academy of SciencesNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

2017YFB0602500XDA210202002200215122278063

2024

10.13563/j.cnki.jmolsci.2023.03.006

分子科学学报
中国化学会

分子科学学报

CSTPCD
影响因子：0.434
ISSN：1000-9035
年,卷(期)：2024.40(1)
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