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

You might also read

Related Articles

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

Sort by
Same author

Porphyrin-Triazine Covalent Organic Framework with Periodic <i>Z</i>-Scheme Molecular Junctions for Visible-Light-Driven CO<sub>2</sub> Reduction.

Inorganic chemistry·2026
Same author

Generation of Nitrite from Residual Urea on Leafy Vegetables Caused by Water Vapor Condensation.

Environmental science & technology·2026
Same author

Phosphate-assisted synthesis of N-doped carbon-coated RuP<sub><i>x</i></sub> on carbon nanotubes for efficient pH-wide hydrogen evolution.

Chemical communications (Cambridge, England)·2025
Same author

Magnetic Co-tip control of quantum states in a triple-decker sandwich molecule: Mechanistic insights from DFT/HEOM simulations.

The Journal of chemical physics·2025
Same author

Crown ether-cycloparaphenylene hybrid multimacrocycles: insights into supramolecular gas sensing and biological potential.

Chemical science·2025
Same author

Two-Dimensional Covalent Organic Frameworks in Organic Electronics.

Angewandte Chemie (International ed. in English)·2025

Related Experiment Video

Updated: Jan 6, 2026

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
10:13

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

Published on: April 28, 2023

3.0K

BF2-Postmodified Cobalt-Porphyrin Covalent Organic Framework for High-Performance Specific Detection of NH3.

Qi Liu1, Binghan Hou, Qiang Li

  • 1College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475000, Henan, China.

ACS Sensors
|October 8, 2025
PubMed
Summary

A novel covalent organic framework (COF-CoDT-BF2) enhances ammonia (NH3) sensing by improving charge transport and adsorption. This breakthrough overcomes humidity interference, enabling highly sensitive and stable NH3 detection for safety applications.

Keywords:
NH3 sensorchemiresistive gas sensorscovalent organic frameworkporphyrinsub-ppb level

More Related Videos

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
08:40

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

4.1K
Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior
06:45

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior

Published on: March 8, 2024

9.7K

Related Experiment Videos

Last Updated: Jan 6, 2026

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
10:13

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

Published on: April 28, 2023

3.0K
Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
08:40

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

4.1K
Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior
06:45

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior

Published on: March 8, 2024

9.7K

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Environmental Science

Background:

  • High-performance ammonia (NH3) sensors are crucial for environmental and industrial safety.
  • Conventional chemiresistive gas sensors (CGSs) struggle with sensitivity and humidity interference.

Purpose of the Study:

  • To develop a novel covalent organic framework (COF-CoDT-BF2) for enhanced NH3 sensing.
  • To address limitations of conventional CGSs, particularly humidity interference and sensitivity.

Main Methods:

  • Synthesis of a COF using CoTAPP and DTA, postmodified with BF2 groups (COF-CoDT-BF2).
  • Investigation of donor-acceptor interfaces and the role of BF2 groups in NH3 adsorption.
  • Utilizing density functional theory (DFT) calculations and in situ spectroscopic analyses.

Main Results:

  • Optimized COF-CoDT-BF2 exhibits enhanced charge transport and NH3 adsorption.
  • BF2 groups act as secondary active sites, strengthening NH3 anchoring.
  • Achieved record sensitivity (722.3% ppm-1), sub-ppb detection limit (0.9 ppb), and stable operation across 0-98% relative humidity.

Conclusions:

  • The molecular engineering strategy establishes a paradigm for multifunctional sensing materials.
  • COF-CoDT-BF2 demonstrates superior performance overcoming water competition effects.
  • Paves the way for intelligent gas monitoring systems in precision agriculture and food safety.