Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

meta-Directing Deactivators: –NO2, –CN, –CHO, –⁠CO2R, –COR, –CO2H01:13

meta-Directing Deactivators: –NO2, –CN, –CHO, –⁠CO2R, –COR, –CO2H

4.7K
All meta-directing substituents are deactivating groups. These substituents withdraw electrons from the aromatic ring, making the ring less reactive toward electrophilic substitution. For example, the nitration of nitrobenzene is 100,000 times slower than that of benzene because of the deactivating effect of the nitro group. The first step in an electrophilic aromatic substitution is the addition of an electrophile to form a resonance-stabilized carbocation. The energy diagrams for...
4.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Self-Assembled Liquid Crystal Interphase Enabling Long-Life All-Iron Redox Flow Batteries.

Angewandte Chemie (International ed. in English)·2026
Same author

High-efficiency electrochemical air capture enabled by thiadiazole redox carrier with tunable gas-selective channels.

Nature communications·2026
Same author

Covalently Supported Phenazine for Electrochemical Capture of Low Concentration CO<sub>2</sub>.

ACS applied materials & interfaces·2025
Same author

Optimizing Zn-Mn Flow Batteries with Aminonaphthalene Sulfonic Acid via Hydrogen Bond Disruption and Interface.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same author

Manganese Doped-Nitrogenated Carbon as an Efficient Catalyst for Acidic Electrocatalytic Reduction of CO<sub>2</sub>.

Small (Weinheim an der Bergstrasse, Germany)·2024
Same author

Blockade of a novel MAP4K4-LATS2-SASH1-YAP1 cascade inhibits tumorigenesis and metastasis in luminal breast cancer.

The Journal of biological chemistry·2024

Related Experiment Video

Updated: May 6, 2026

Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

48.0K

Amine-Functionalized Defective MOFs for Direct Air Capture by Postsynthetic Modification.

Wenzhe Yan1, Jing Hou1, Tao Yan1

  • 1School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China.

ACS Applied Materials & Interfaces
|April 29, 2025
PubMed
Summary

Amine-functionalized defective metal-organic frameworks show promise for direct air capture of CO2. Covalent grafting of polyethylene-polyamines (PEPA) onto chromium-based frameworks yielded durable sorbents with high CO2 adsorption capacity.

Keywords:
amine mediatedcovalent synthesisdirect air capturemetal organic frameworkspostsynthetic modification

More Related Videos

Solvothermal Synthesis of MIL-96 and UiO-66-NH2 on Atomic Layer Deposited Metal Oxide Coatings on Fiber Mats
06:00

Solvothermal Synthesis of MIL-96 and UiO-66-NH2 on Atomic Layer Deposited Metal Oxide Coatings on Fiber Mats

Published on: June 13, 2018

11.4K
Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance
08:12

Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance

Published on: September 5, 2018

16.0K

Related Experiment Videos

Last Updated: May 6, 2026

Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

48.0K
Solvothermal Synthesis of MIL-96 and UiO-66-NH2 on Atomic Layer Deposited Metal Oxide Coatings on Fiber Mats
06:00

Solvothermal Synthesis of MIL-96 and UiO-66-NH2 on Atomic Layer Deposited Metal Oxide Coatings on Fiber Mats

Published on: June 13, 2018

11.4K
Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance
08:12

Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance

Published on: September 5, 2018

16.0K

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Environmental Science

Background:

  • Defective metal-organic frameworks (DM) offer potential for direct air capture (DAC) of carbon dioxide (CO2).
  • Amine functionalization is a key strategy to enhance CO2 adsorption properties of sorbent materials.

Purpose of the Study:

  • To investigate the efficacy of amine-functionalized chromium-based DM for DAC.
  • To compare the performance of different amine functionalization strategies, including ethylenediamine (EDA), tris(2-aminoethyl)amine (TAEA), and polyethylene-polyamines (PEPA).

Main Methods:

  • Post-synthetic modification of chromium-based DM with EDA, TAEA, and PEPA.
  • Characterization using FTIR, XPS, PXRD, and SEM to confirm synthesis and structural integrity.
  • Evaluation of CO2 adsorption capacity, regeneration energy, and cyclic stability under ambient conditions.

Main Results:

  • 1:1-PEPA-DM demonstrated the highest CO2 adsorption capacity (1.26 mmol/g) and lowest regeneration energy (75.1 kJ/mol).
  • The PEPA-grafted DM exhibited excellent durability, with only 26.62% capacity loss after 12 cycles.
  • Physically impregnated PEPA showed lower capacity and significantly reduced cyclic stability compared to covalently grafted PEPA.

Conclusions:

  • Covalent grafting of PEPA onto chromium-based DM is a highly effective strategy for developing durable and efficient DAC sorbents.
  • The choice of amine and functionalization method significantly impacts DAC performance and material stability.