Title : ( A Zr-Metal-Organic Framework Catalyst for Oxidative Desulfurization and Its Improvement by Crystal Engineering Approach )
Authors: Reyhane Najafzade , Masoud Mirzaei Shahrabi , Mahdi Niknam Shahrak , Ruhollah Khajavian ,![](images/png_icon.png)
Abstract
Sulfur oxides (SOx) are one of the major air pollutants, which originally come from the combustion of transportation fuels containing sulfur compounds. Oxidative desulfurization (ODS) is a method in which sulfur compounds are first oxidized to sulfoxides or sulfones, then are removed by extraction using a polar solvent [1-3]. In this work, we have utilized UiO-66, a Zr-based MOF, as catalyst to remove sulfur compounds from model oil/real fuel. The Zr-oxoclusters in the structure of UiO-66 react with H2O2 to form ZrIV-peroxo complexes as active species for ODS [4]. By varying synthetic conditions through “coordination modulation”, we succeeded to create a larger number of ZrIV sites bringing enhanced catalytic activity to the ODS reaction [5]. Accordingly, benzoic acid was employed as modulating agent to create defect sites in the structure. Our primary results indicate that the modulated-UiO-66 exhibits higher catalytic activity in comparison with neat UiO-66 and some typical catalysts.
Keywords
, Metal, Organic Frameworks; Coordination Modulation; Oxidative Desulfurization.@inproceedings{paperid:1075638,
author = {Najafzade, Reyhane and Mirzaei Shahrabi, Masoud and مهدی نیکنام شاهرک and روح اله خواجویان},
title = {A Zr-Metal-Organic Framework Catalyst for Oxidative Desulfurization and Its Improvement by Crystal Engineering Approach},
booktitle = {ششمین کنفرانس ملی زئولیت ایران},
year = {2019},
location = {قوچان, IRAN},
keywords = {Metal-Organic Frameworks; Coordination Modulation; Oxidative Desulfurization.},
}
%0 Conference Proceedings
%T A Zr-Metal-Organic Framework Catalyst for Oxidative Desulfurization and Its Improvement by Crystal Engineering Approach
%A Najafzade, Reyhane
%A Mirzaei Shahrabi, Masoud
%A مهدی نیکنام شاهرک
%A روح اله خواجویان
%J ششمین کنفرانس ملی زئولیت ایران
%D 2019