scholarly journals Tailoring Amine-Functionalized Ti-MOFs via a Mixed Ligands Strategy for High-Efficiency CO2 Capture

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3348
Author(s):  
Yinji Wan ◽  
Yefan Miao ◽  
Tianjie Qiu ◽  
Dekai Kong ◽  
Yingxiao Wu ◽  
...  
Keyword(s):  
Co2 Capture ◽  
High Performance ◽  
High Efficiency ◽  
Mixed Ligands ◽  
Promising Strategy ◽  
Amine Functionalized ◽  
Separation Factors ◽  
Metal Organic ◽  
Separation Of Co2 ◽  
Co2 Adsorption Capacity

Amine-functionalized metal-organic frameworks (MOFs) are a promising strategy for the high-efficiency capture and separation of CO2. In this work, by tuning the ratio of 1,3,5-benzenetricarboxylic acid (H3BTC) to 5-aminoisophthalic acid (5-NH2-H2IPA), we designed and synthesized a series of amine-functionalized highly stable Ti-based MOFs (named MIP-207-NH2-n, in which n represents 15%, 25%, 50%, 60%, and 100%). The structural analysis shows that the original framework of MIP-207 in the MIP-207-NH2-n (n = 15%, 25%, and 50%) composites remains intact when the mole ratio of ligand H3BTC to 5-NH2-H2IPA is less than 1 to 1 in the resulting MOFs. By the introduction of amino groups, MIP-207-NH2-25% demonstrates outstanding CO2 capture performance up to 3.96 and 2.91 mmol g−1, 20.7% and 43.3% higher than those of unmodified MIP-207 at 0 and 25 °C, respectively. Furthermore, the breakthrough experiment indicates that the dynamic CO2 adsorption capacity and CO2/N2 separation factors of MIP-207-NH2-25% are increased by about 25% and 15%, respectively. This work provides an additional strategy to construct amine-functionalized MOFs with the maintenance of the original MOF structure and a high performance of CO2 capture and separation.

A general route to the synthesis of layer-by-layer structured metal organic framework/graphene oxide hybrid films for high-performance supercapacitor electrodes

2017 ◽  
Vol 5 (32) ◽  
pp. 16865-16872 ◽  
Author(s):  
Dongbo Yu ◽  
Liang Ge ◽  
Xinlai Wei ◽  
Bin Wu ◽  
Jin Ran ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
High Performance ◽  
Metal Organic Framework ◽  
Layer By Layer ◽  
Hybrid Films ◽  
Promising Strategy ◽  
Metal Organic ◽  
Organic Framework

A promising strategy is demonstrated for the syntheses of metal organic framework/graphene oxide hybrid films with highly ordered layer-by-layer architecture, and the derived hybrids exhibit remarkable energy storage performances.

Alkyl amine functionalized triphenylamine-based covalent organic frameworks for high-efficiency CO2 capture and separation over N2

2018 ◽  
Vol 230 ◽  
pp. 28-31 ◽  
Author(s):  
Maohuai Wang ◽  
Shuxian Wei ◽  
Zhonghua Wu ◽  
Sainan Zhou ◽  
Zhaojie Wang ◽  
...  
Keyword(s):  
Co2 Capture ◽  
High Efficiency ◽  
Covalent Organic Frameworks ◽  
Alkyl Amine ◽  
Amine Functionalized

scholarly journals The Chemistry of CO2 Capture in an Amine-Functionalized Metal–Organic Framework under Dry and Humid Conditions

2017 ◽  
Vol 139 (35) ◽  
pp. 12125-12128 ◽  
Author(s):  
Robinson W. Flaig ◽  
Thomas M. Osborn Popp ◽  
Alejandro M. Fracaroli ◽  
Eugene A. Kapustin ◽  
Markus J. Kalmutzki ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Metal Organic Framework ◽  
Amine Functionalized ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Enhanced CO2 adsorption capacity of amine-functionalized MIL-100(Cr) metal–organic frameworks

CrystEngComm ◽  
2015 ◽  
Vol 17 (2) ◽  
pp. 430-437 ◽  
Author(s):  
Carlos Palomino Cabello ◽  
Gloria Berlier ◽  
Giuliana Magnacca ◽  
Paolo Rumori ◽  
Gemma Turnes Palomino
Keyword(s):  
Carbon Dioxide ◽  
Adsorption Capacity ◽  
Co2 Adsorption ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Sorption Properties ◽  
Amine Functionalized ◽  
Carbon Dioxide Sorption ◽  
Metal Organic ◽  
Co2 Adsorption Capacity

Functionalization of the MIL-100(Cr) metal–organic framework with alkylamines (ethylenediamine and N,N′-dimethylethylenediamine) improves carbon dioxide sorption properties, especially in the case of ethylenediamine.

scholarly journals High efficiency nanocomposite sorbents for CO2 capture based on amine-functionalized mesoporous capsules

2011 ◽  
Vol 4 (2) ◽  
pp. 444-452 ◽  
Author(s):  
Genggeng Qi ◽  
Yanbing Wang ◽  
Luis Estevez ◽  
Xiaonan Duan ◽  
Nkechi Anako ◽  
...  
Keyword(s):  
Co2 Capture ◽  
High Efficiency ◽  
Amine Functionalized

scholarly journals Selective Adsorption-Based Separation of Flue Gas and Natural Gas in Zirconium Metal-Organic Frameworks Nanocrystals

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1822 ◽  
Author(s):  
Pengli Li ◽  
Yongli Shen ◽  
Dandan Wang ◽  
Yanli Chen ◽  
Yunfeng Zhao
Keyword(s):  
Natural Gas ◽  
Flue Gas ◽  
Carbon Capture ◽  
High Efficiency ◽  
Selective Adsorption ◽  
Metal Organic Frameworks ◽  
Adsorption Sites ◽  
Separation Factors ◽  
Simple Processing ◽  
Metal Organic

Carbon capture from flue gas and natural gas offers a green path to construct a net-zero emissions economic system. Selective adsorption-based gas separation by employing metal-organic frameworks (MOFs) is regarded as a promising technology due to the advantages of simple processing, easy regeneration and high efficiency. We synthesized two Zirconium MOFs (UiO-66 and UiO-66-NH2) nanocrystals for selective capture and further removal of CO2 from flue gas and natural gas. In particular, UiO-66-NH2 nanocrystals have a smaller grain size, a large amount of defects, and pending –NH2 groups inside their pores which display effective CO2 selective adsorption abilities over CH4 and N2 with the theoretical separation factors of 20 and 7. This breakthrough experiment further verified the selective adsorption-based separation process of natural gas and flue gas. In one further step, we used the Monte Carlo simulation to investigate the optimized adsorption sites and energy of CO2, N2 and CH4 molecules in the gas mixture. The significantly large adsorption energy of CO2 (0.32 eV) over N2 (0.19 eV) and N2 (0.2 eV) may help us to reveal the selective adsorption mechanism.

scholarly journals Integration of Metal-Organic Frameworks into a 3D Interconnected Network for Improved Ion Transport

2021 ◽  
Author(s):  
Qinghan Zeng ◽  
Jia Wang ◽  
Xin Li ◽  
Yangyuan Ou ◽  
Wenchao He ◽  
...  
Keyword(s):  
Ion Transport ◽  
High Performance ◽  
High Efficiency ◽  
Metal Organic Frameworks ◽  
Specific Capacity ◽  
Integrated Design ◽  
Cycling Performance ◽  
Interconnected Network ◽  
Electrochemical Window ◽  
Metal Organic

Abstract Metal-organic frameworks (MOFs) have attracted intensive study as solid electrolytes (SEs) in recent years, especially on facilitating ion transport with functionalized channels. However, MOF particles work separately in SEs and numerous interfaces hinder the high-efficiency ion transport, which lowers the performance of solid-state batteries (SSBs) especially at high C-rate. Herein, we constructed continuous ion pathways by integration of MOFs into a 3D interconnected network. Particle arrays of a newly developed MOF (Zr-BPDC-2SO3H) which has single ion transport ability were grown on the bacterial cellulose (BC) nanofibers to provide a linear ion transport network. The interconnected MOFs network exhibits higher ionic conductivity of 7.88 × 10− 4 S cm− 1 at 25 ℃, single ion transport ability (ʈLi+=0.88), wide electrochemical window up to 5.15 V, excellent interface compatibility and capability for supressing lithium dendrites. Most importantly, the SSB fabricated with the interconnected MOFs network shows more than 100% improved specific capacity than the SSB without integration and stable cycling performance at 3 C. This work demonstrates the effectiveness of integrated design and paves new way for developing high-performance SEs based on porous ion conductors.

scholarly journals Optimization of a MOF Blended with Modified Polyimide Membrane for High-Performance Gas Separation

Membranes ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 34
Author(s):  
Yushu Zhang ◽  
Hongge Jia ◽  
Qingji Wang ◽  
Wenqiang Ma ◽  
Guoxing Yang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Gas Separation ◽  
High Performance ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Polyimide Membrane ◽  
Amine Functionalized ◽  
Ideal Selectivity ◽  
Metal Organic ◽  
Matrix Membranes

The preparation, characterization and gas separation properties of mixed matrix membranes (MMMs) were obtained from polyimide capped with ionic liquid and blended with metal-organic frameworks (MOFs). The synthesized MOF was amine functionalized to produce UiO-66-NH2, and its amino group has a higher affinity for CO2. Mixed matrix membranes exhibited good membrane forming ability, heat resistance and mechanical properties. The polyimide membrane exclusively capped by ionic liquid exhibited good permselectivity of 74.1 for CO2/CH4, which was 6.2 times that of the pure polyimide membrane. It is worth noting that MMM blended with UiO-66-NH2 demonstrated the highest ideal selectivity for CO2/CH4 (95.1) with a CO2 permeability of 7.61 Barrer, which is close to the 2008 Robeson upper bound. The addition of UiO-66-NH2 and ionic liquid enhanced the permselectivity of MMMs, which may be one of the promising technologies for high performance CO2/CH4 gas separation.

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