高等学校化学学报2024，Vol.45Issue(4)：27-32,6.DOI:10.7503/cjcu20230480
Fe促进的Pt@CeO2催化剂用于CO2加氢制C1产品
Fe-promoted Pt@CeO2 Catalysts for CO2 Hydrogenation to C1 Products
摘要
Abstract
Transition metal promoters were introduced on the surface of the Pt@CeO2 core@shell nanospheres,and the effects of different transition metals on the CO2 hydrogenation performance were investigated.The results show that the introduction of Fe species has the best effect on the enhancement of the hydrogenation performance,with a liquid C1 yield of 6.34×10-2 mmol·g-1cat.·h-1.Transmission electron microscopy(TEM),X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),N2 adsorption-desorption experiments,CO2 temperature-programmed desorption(CO2-TPD),and H2 temperature-programmed reduction(H2-TPR)experiments reveal that Fe promoter was dispersed on the surface of Pt@CeO2,and Fe promoter decreases the charge density of Pt,generating more Pt2+ species and improving the selectivity of methanol.In addition,it also facilitates the formation of more oxygen vacancies(Ov),which in turn facilitate the adsorption of CO2 as well as the subsequent hydrogenation reaction,and improve the catalytic activity.关键词
CO2加氢/C1产品/核壳纳米球/Fe助剂Key words
CO2 hydrogenation/C1 product/Core@shell nanospheres/Fe promoter分类
化学化工引用本文复制引用
王子健,李雨鸥,张玲玲,汪啸,宋术岩,张洪杰..Fe促进的Pt@CeO2催化剂用于CO2加氢制C1产品[J].高等学校化学学报,2024,45(4):27-32,6.基金项目
国家科技重大项目(批准号:2021YFB3500700)、国家自然科学基金(批准号:22020102003,22025506和22271274)和吉林省科技发展计划项目(批准号:20230101035JC和20230101022JC)资助. Supported by the National Science and Technology Major Project of China(No.2021YFB3500700),the National Natural Science Foundation of China(Nos.22020102003,22025506,22271274)and the Program of Science and Technology Development Plan of Jilin Province,China(Nos.20230101035JC,20230101022JC). （批准号:2021YFB3500700）
