Metal chloride functionalized MOF-253(Al) for high-efficiency selective separation of ammonia from H2 and N2

Wang, Ye; Shi, Yan-Li; Xiong, Donghong; Li, Zhiyong; Xuan, Xiaopeng; Wang, Jianji

doi:10.1016/j.cej.2023.145307

Cited by 8 publications

(2 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Metal–organic frameworks (MOFs) are a new class of porous materials; they are usually formed by bridging inorganic clusters with organic linkers. These porous materials have regular nanopores, adjustable porosity, and a high specific surface area , because of which they have great potential in gas storage and separation, − biomedical delivery, , and catalysis. , Benefiting from the rapid development of materials science, MOFs have been studied in the fabrication of Pickering emulsions since 2013 along with increased stability of MOFs. − However, few switchable emulsions based on MOFs have been reported, − and the MOF emulsifiers cannot be regenerated at room temperature. In addition, only octahedral UiO-66 was used as an emulsifier to fabricate MOF-based Pickering emulsions up to now despite the crucial role of emulsifier morphology in stabilizing/breaking emulsions.…”

Section: Introductionmentioning

confidence: 99%

Zr-Based MOF-Stabilized CO₂-Responsive Pickering Emulsions for Efficient Reduction of Nitroarenes

Li,

Shi,

Ding

et al. 2024

Langmuir

Self Cite

View full text Add to dashboard Cite

A Pickering emulsion is a natural microreactor for interfacial catalysis in which an emulsifier is critical. Recently, a metal−organic framework (MOF) has attracted attention to emulsify water−organic mixtures for constructing a Pickering emulsion. However, a few stimuli-responsive Pickering emulsions based on MOFs have been reported, and the MOF emulsifiers cannot be regenerated at room temperature. Herein, the Zr-MOF with a rodlike morphology is synthesized using ionic liquid as a modulator and then modified with n-(trimethoxysilylpropyl)imidazole (C 3 im) to prepare a series of functionalized Zr-MOFs (MOF-C 3 im). It is found that MOF-C 3 im is an excellent emulsifier to construct stable and CO 2 -responsive Pickering emulsions even at low content (>0.20 wt %). Notably, the emulsification and demulsification of the emulsions can be easily and reversibly switched by bubbling of CO 2 and N 2 alternatively at room temperature because CO 2 and imidazole molecules anchored on the Zr-MOF underwent a reversible acid−base reaction, resulting in an obvious change in the wettability of the emulsifier. As a proof of concept, the reduction reactions of nitrobenzene have been successfully carried out in these Pickering emulsions, demonstrating the efficient integration as a microreactor for chemical reaction, product separation, and emulsifier recycling under ambient conditions. This strategy provides an innovative option to develop stimulus-responsive Pickering emulsions for sustainable chemical processes.

show abstract

Section: Introductionmentioning

confidence: 99%

Zr-Based MOF-Stabilized CO₂-Responsive Pickering Emulsions for Efficient Reduction of Nitroarenes

Li,

Shi,

Ding

et al. 2024

Langmuir

Self Cite

View full text Add to dashboard Cite

show abstract

“…Post-modification approaches using appropriate salts to chelate in the uncoordinated organic struts of MOFs are an alternative effective strategy to significantly improve adsorption performance with moderate adsorption heat. [35][36][37] For the selection of MOF modification platforms, Al-MOFs are excellent candidates because of their availability for large-scale synthesis using non-toxic, inexpensive and abundant aluminum salts. 38 On the other hand, salts composed of metal ions and fluoride anions used for chelation are expected to form electrostatic or hydrogen bonding interactions with CO 2 and CH 4 to increase adsorption affinity.…”

Section: Introductionmentioning

confidence: 99%

Enhancing CO₂/N₂and CH₄/N₂separation performance by salt-modified aluminum-based metal–organic frameworks

Zhang,

Ma,

Zhang

et al. 2024

Dalton Trans.

View full text Add to dashboard Cite

show abstract

Application and Challenge of Metal/Covalent Organic Frameworks in Ammonia Sorption and Separation

Fu,

Zhang,

2024

ChemPlusChem

View full text Add to dashboard Cite

As both a critical chemical feedstock and an environmental pollutant, the production and utilization of ammonia (NH3) are accompanied by the progress of social civilization. In recent years, research on metal/covalent organic framework materials as NH3 adsorbents has attracted increasing attention due to their high porosity, versatile architecture and tunable functionality. This review was organized to highlight the recent advancement of MOF/COF materials for NH3 sorption, which successively presented the key properties of solid adsorbents and summarized the strategies along with their mechanisms for enhancing NH3 adsorption. In addition, perspectives and outlook regarding the future development of MOF/COF‐based NH3 adsorbents were outlined to meet the requirements of practical applications in different environment.

show abstract

Metal chloride functionalized MOF-253(Al) for high-efficiency selective separation of ammonia from H2 and N2

Cited by 8 publications

References 52 publications

Zr-Based MOF-Stabilized CO₂-Responsive Pickering Emulsions for Efficient Reduction of Nitroarenes

Zr-Based MOF-Stabilized CO₂-Responsive Pickering Emulsions for Efficient Reduction of Nitroarenes

Enhancing CO₂/N₂and CH₄/N₂separation performance by salt-modified aluminum-based metal–organic frameworks

Application and Challenge of Metal/Covalent Organic Frameworks in Ammonia Sorption and Separation

Contact Info

Product

Resources

About

Metal chloride functionalized MOF-253(Al) for high-efficiency selective separation of ammonia from H2 and N2

Cited by 8 publications

References 52 publications

Zr-Based MOF-Stabilized CO2-Responsive Pickering Emulsions for Efficient Reduction of Nitroarenes

Zr-Based MOF-Stabilized CO2-Responsive Pickering Emulsions for Efficient Reduction of Nitroarenes

Enhancing CO2/N2and CH4/N2separation performance by salt-modified aluminum-based metal–organic frameworks

Application and Challenge of Metal/Covalent Organic Frameworks in Ammonia Sorption and Separation

Contact Info

Product

Resources

About

Zr-Based MOF-Stabilized CO₂-Responsive Pickering Emulsions for Efficient Reduction of Nitroarenes

Zr-Based MOF-Stabilized CO₂-Responsive Pickering Emulsions for Efficient Reduction of Nitroarenes

Enhancing CO₂/N₂and CH₄/N₂separation performance by salt-modified aluminum-based metal–organic frameworks