多酸基纳米晶的合成及其在催化氧化脱硫中的应用研究
The Synthesis of Poly Acid Based Nanocrystals and Their Application in Catalytic Oxidation Desulfurization
张晓琳 1石强 2尚真真 1许环军 1姜丹 1程睿菁1
作者信息
- 1. 琼台师范学院 海南省儿童认知与行为发展重点实验室(筹),海南 海口 571127
- 2. 中国中煤能源股份有限公司海南分公司,海南 海口 571127
- 折叠
摘要
本研究旨在探讨多金属氧酸盐[简称多酸(Polyoxometalates,POMs)]在催化领域的应用及其在金属-有机框架(Metal-Organic Frameworks,MOFs)中的分散策略.多酸因其独特的酸性和氧化还原特性而备受关注,但其在非极性溶剂中的分散性差限制了其催化性能的发挥.本研究通过水热合成方法制备了Keggin型多酸与Zn(TPB)2(1,3,5-三苯甲酸)框架的复合物,实现了多酸在MOFs中的高效分散.研究结果表明,所合成的多酸基多孔材料在甲醇脱水制备二甲醚和氧化脱硫反应中表现出优异的催化活性.此外,通过控制合成条件,成功实现了晶体粒径的调控,为多酸催化剂的设计提供了新的策略.
Abstract
This study aims to explore the application of polyoxometalates(POMs)in catalysis and their dispersion strategies in metal organic frameworks(MOFs).Polyanions have attracted much attention due to their unique acidity and redox properties,but their poor dispersibility in non-polar solvents limits their catalytic performance.This study prepared a composite of Keggin type polyacids and Zn(TPB)2(1,3,5-tribenzoic acid)framework using hydrothermal synthesis method,achieving efficient dispersion of polyacids in MOFs.The research results indicate that the synthesized multi-acid based porous material exhibits excellent catalytic activity in the preparation of dimethyl ether by methanol dehydration and oxidative desulfurization reactions.In addition,by controlling the synthesis conditions,the control of crystal particle size has been successfully achieved,providing a new strategy for the design of multi acid catalysts.
关键词
多酸/金属-有机框架/催化/粒径调控/氧化脱硫Key words
polyacid/metal organic framework/catalysis/particle size regulation/oxidative desulfurization引用本文复制引用
基金项目
海南省自然科学基金项目(221QN0898)
海南省自然科学基金项目(823MS062)
海南省儿童认知与行为发展重点实验室科学研究项目(2022YB01)
海南省教育厅科学研究项目(Hnky2024-59)
出版年
2024
NETL
NSTL
万方数据