Related Experiment Video
Updated: Feb 4, 2026
08:43
Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles
Published on: October 27, 2018
18.8K
Electrochromic Sensors Based on Conducting Polymers, Metal Oxides, and Coordination Complexes
Raimonda Celiesiute1,2, Almira Ramanaviciene1, Mindaugas Gicevicius1,3
1a NanoTechnas - Centre of Nanotechnology and Material Science, Faculty of Chemistry and Geosciences , Vilnius University , Vilnius , LT , Lithuania.
Critical Reviews in Analytical Chemistry
|October 5, 2018
Summary
Electrochromic sensors combine electrochemical and optical methods for multi-mode signal detection. This review highlights the potential of various electrochromic materials for chemical and biochemical analysis.
Area of Science:
- Analytical Chemistry
- Materials Science
Background:
- Electrochromic sensors offer multi-modal analytical signal detection by integrating electrochemical and optical techniques.
- This field represents a novel area in analytical chemistry with significant potential for diverse applications.
- A critical overview of various electrochromic materials is essential for understanding sensor capabilities.
Purpose of the Study:
- To critically review and compare the properties of diverse electrochromic materials for sensor applications.
- To evaluate the potential of electrochromic sensors in chemical and biochemical analysis.
- To identify promising research directions for electrochromic polymers in analytical chemistry.
Main Methods:
- Literature review and critical evaluation of existing studies on electrochromic sensors.
- Comparative analysis of different classes of electrochromic materials (polymers, oxides, phthalocyanines, etc.).
- Assessment of analytical signal registration capabilities using combined electrochemical and optical methods.
Main Results:
- Electrochromic sensors provide a versatile platform for analytical measurements.
- Various materials including polymers, metal oxides, and dyes exhibit distinct properties suitable for sensor development.
- Electrochromic polymers show particular promise for advanced analytical applications.
Conclusions:
- Electrochromic sensors are a rapidly developing technology with broad applicability.
- The choice of electrochromic material significantly impacts sensor performance.
- Further research into electrochromic polymers can unlock new analytical capabilities.
Related Concept Videos
02:57Coordination Number and Geometry
19.0K
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
19.0K
02:54Coordination Compounds and Nomenclature
26.8K
In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
26.8K
01:17Theory of Metallic Conduction
1.8K
The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
1.8K
02:51Metal-Ligand Bonds
24.3K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
24.3K
03:06Alkali Metals
24.8K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
Table 1: Properties of the alkali metals
24.8K
02:34Polymers
40.9K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
40.9K