MOF衍生Co-C/FeOx复合材料的制备及其催化CO2还原性能探究
Preparation of MOF-derived Co-C/FeOx composite and study on its catalytic performance for CO2 reduction
蔡静宇 1张春妮 2肖龙强 1赵玉来2
作者信息
- 1. 福州大学石油化工学院,福建 福州 350108;清源创新实验室,福建 泉州 362801
- 2. 福州大学石油化工学院,福建 福州 350108
- 折叠
摘要
以MOFs为模板,通过水热合成、高温煅烧制备得到Co-C/FeOx 复合材料,在300℃、0.2 MPa条件下探究了其对CO2的催化还原性能.通过调控Co-C和FeOx 的质量比探究CO2 还原产物的分布,结果表明,当Co-C和FeOx 质量比为 1:4时,CO2 转化率为28.8％,C2H6 和C3H8 的选择性提高至28.6％.FeOx 的引入促进了中间体CO∗的生成,Co-C和FeOx 两者的结合使CO2 还原兼顾了CO2 转化率与C2+产物的选择性.该研究不仅为CO2 选择性还原为多碳产物提供了一种有效策略,还展示了以MOFs为前驱体合成的碳负载金属/金属氧化物复合材料在催化中的应用潜力.
Abstract
Co-C/FeOx composite is prepared via hydrothermal synthesis and high temperature calcination by using MOFs as templates.Its catalytic performance for CO2 reduction at 300℃and 0.2 MPa is investigated.The distribution of the products from CO2 reduction is explored by adjusting the mass ratio of Co-C and FeOxin the composite.It is found that the conversion rate of CO2 reaches 28.8％and the selectivity of C2H6 and C3H8 is improved to 28.6％when the mass ratio of Co-C and FeOxis 1:4.The addition of FeOx can promote the formation of CO∗ intermediate.The combination of Co-C and FeOx makes the CO2 reduction process take into account both the CO2 conversion and the selectivity of C2+products.This study provides an effective strategy for the selective reduction of CO2 to multi-carbon products,and also discloses the application potential of carbon-supported metal/metal oxide composites synthesized with MOFs as precursors in catalysis.
关键词
二氧化碳/选择催化还原/碳氢化合物/MOF衍生物/双金属Key words
carbon dioxide/selective catalytic reduction/hydrocarbon/MOF derivatives/bimetal引用本文复制引用
基金项目
福建省自然科学基金(2022J05128)
福建省中青年教师教育科研项目(JAT200003)
清源创新实验室重点项目(00221003)
出版年
2024
NETL
NSTL
万方数据