Defective NH<sub>2</sub>-UiO-66 (Zr) effectively converting CO<sub>2</sub> into cyclic carbonate under ambient pressure, solvent-free and co-catalyst-free conditions

Xueting Liu; Chunhui Hu; Jingjing Wu; Peng Cui; Fengyu Wei

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Defective NH₂-UiO-66 (Zr) effectively converting CO₂ into cyclic carbonate under ambient pressure, solvent-free and co-catalyst-free conditions

Updated：2026-01-06

- Defective NH₂-UiO-66 (Zr) effectively converting CO₂ into cyclic carbonate under ambient pressure, solvent-free and co-catalyst-free conditions
- Chinese Journal of Chemical Engineering Vol. 43, Issue 3, Pages: 222-229(2022)
- Affiliations：
  
  School of Chemistry and Chemical Engineering, Hefei University of Technology, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering,Hefei,China,230009
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2022
- Accepted：
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-UiO-66 (Zr) effectively converting CO
DOI：

-UiO-66 (Zr) effectively converting CO DOI：

摘要

Abstract

In this study

a series of metal–organic frameworks (MOFs) NH

-UiO-66-

HAc catalysts were synthesized by solvothermal method using acetic acid (HAc) as a modulator

and were applied to the cycloaddition of CO

and epichlorohydrin (EPIC) under ambient pressure. Influences of the modulation by HAc on morphologies and structures of the MOFs are demonstrated

via

PXRD

FESEM

FTIR

adsorption–desorption

XPS and

H NMR characterizations. The results show that the MOFs containing mesoporous pores can be prepared by adjusting the concentration of HAc. By optimizing the amount of HAc added

the specific surface area of NH

-UiO-66-8HAc is as high as 879.17 m

·g

-1

which is 28.3% higher than that of the original MOFs. And the evaluation of catalytic performance showed that HAc modulation enhanced the activity of NH

-UiO-66-

HAc under mild conditions. The exposure of Lewis acid sites

increased specific surface area and porosity

via

the modulation of HAc defective ligand can be supposed the key factors to determine the enhanced catalytic activities. In addition

considering the influence of gas concentration on the reaction

the concept of TOP (Turnover of Pressure

defined as the mass of conversions of a unit mass catalyst under unit pressure and unit time) was first proposed in this article.

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Defective NH2-UiO-66 (Zr) effectively converting CO2 into cyclic carbonate under ambient pressure, solvent-free and co-catalyst-free conditions

DOI：

摘要

Abstract

关键词

Keywords

references

Defective NH₂-UiO-66 (Zr) effectively converting CO₂ into cyclic carbonate under ambient pressure, solvent-free and co-catalyst-free conditions