A Versatile Synthesis Approach and Interface Characterization of t‑ZnO@Metal Hydroxide/Oxide Heterostructures.
Barnika Chakraborty1,2, Tim Tjardts3, Berit Zeller-Plumhoff4,5
1Chair for Functional Nanomaterials, Department for Materials Science, Kiel University, Kaiserstr. 2, Kiel 24143, Germany.
Crystal Growth & Design
|March 9, 2026
Summary
Researchers developed a wet chemical method to coat tetrapodal zinc oxide (t-ZnO) with metal hydroxides. These new core-shell structures show potential for advanced functional ceramics and electronic devices.
Area of Science:
- Materials Science
- Nanotechnology
- Ceramic Engineering
Background:
- Functional ceramics are crucial for piezoelectric sensors, actuators, and semiconductors.
- Tetrapodal zinc oxide (t-ZnO) offers unique structural properties for advanced materials.
Purpose of the Study:
- To develop a versatile wet chemical synthesis for t-ZnO@metal hydroxide/oxide core-shell structures.
- To characterize the structural, morphological, and interface properties of these hybrid materials.
- To explore their potential applications in functional ceramics.
Main Methods:
- Wet chemical synthesis of core-shell structures.
- Structural and morphological characterization using 2D nano XRD, SEM, TEM, bulk XRD.
- Interface analysis via XPS and Raman spectroscopy.
Main Results:
- Uniform coating of t-ZnO cores with various metal hydroxides, forming distinct core-shell architectures.
- Detailed characterization of chemical, structural, and morphological properties.
- Demonstration of t-ZnO as a versatile template for synthesizing derived oxides and hydroxides.
Conclusions:
- The developed method enables the creation of novel t-ZnO@metal hydroxide/oxide hybrid structures.
- These structures exhibit promising properties for applications in functional ceramics and electronics.
- t-ZnO serves as an effective template for diverse material synthesis.
More Related Videos
Related Concept Videos
02:42Ionic Crystal Structures
18.1K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
18.1K
02:51Metal-Ligand Bonds
19.3K
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...
19.3K
02:34Structural Isomerism
16.9K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly,...
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly,...
16.9K
01:23Properties of Organometallic Compounds
2.1K
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
2.1K
01:19Complexation Equilibria: The Chelate Effect
1.7K
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
1.7K
00:39Complexometric Titration: Overview
11.1K
Complexometric titration involves the formation of a complex by reacting a metal ion with one or more ligands. A visual indicator often detects the end point of a complexometric titration. It is added to the metal solution before the titration, forming a stable metal–indicator complex and imparting color to the solution. As the titration approaches the equivalence point, the excess of the added ligand displaces the indicator from the metal–indicator complex, releasing the free...
11.1K