Related Experiment Video
Updated: Jan 27, 2026

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks MOFs
Published on: January 17, 2020
Metal-Organic Framework Co-MOF-74-Based Host-Guest Composites for Resistive Gas Sensing
Ina Strauss1, Alexander Mundstock1, Marvin Treger1
1Institute of Physical Chemistry and Electrochemistry , Leibniz Universität Hannover , Callinstraße 3A , D-30167 Hanover , Germany.
Abstract:
Increasing demands in the field of sensing, especially for gas detection applications, require new approaches to chemical sensors. Metal-organic frameworks (MOFs) can play a decisive role owing to their outstanding performances regarding gas selectivity and sensitivity. The tetrathiafulvalene (TTF)-infiltrated MOF, Co-MOF-74, has been prepared following the host-guest concept and evaluated in resistive gas sensing. The Co-MOF-74-TTF crystal morphology has been characterized via X-ray diffraction and scanning electron microscopy, while the successful incorporation of TTF into the MOF has been validated via X-ray photoemission spectroscopy, thermogravimetric analysis, UV/vis, infrared (IR), and Raman investigations. We demonstrate a reduced yet ample uptake of CO2 in the pores of the new material by IR imaging and adsorption isotherms. The nanocomposite Co-MOF-74-TTF exhibits an increased electrical conductivity in comparison to Co-MOF-74 which can be influenced by gas adsorption from a surrounding atmosphere. This effect could be used for gas sensing.
Related Concept Videos
Alkali Metals
Table 1: Properties of the alkali metals
The Sense of Self: Reflected Self-Appraisal and Social Comparison
Solution Composition During Acid/Base Titrations
The α0 and α1 values...
Classifying Matter by Composition
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
Types of Genetic Transfer Between Organisms
Bonding in Metals

