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Related Concept Videos

Metallic Solids02:37

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
Metal-Ligand Bonds02:51

Metal-Ligand Bonds

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...

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Related Experiment Video

Updated: May 18, 2026

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
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Dynamic Micelle-Hydrogels for 3D-Architected Transition Metal Sulfides.

Zhenzhen Wang1, Xiaozhuang Zhou1, Junen Wu2

  • 1Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P. R. China.

Macromolecular Rapid Communications
|October 14, 2024
PubMed
Summary

Researchers developed a novel hydrogel ink for 3D printing transition metal sulfides (TMS). This method simplifies the creation of complex 3D TMS structures with potential catalytic applications.

Keywords:
additive manufacturinghydrogel inkinject printingsupramolecular hydrogeltransition metal sulfides

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemistry

Background:

  • Additive manufacturing enables complex 3D structures, but fabricating 3D transition metal sulfides (TMS) is difficult due to ink limitations.
  • Developing suitable inks is crucial for advancing 3D-structured TMS applications.

Purpose of the Study:

  • To present a novel supramolecular micelle hydrogel ink for fabricating 3D-structured transition metal sulfides (TMS).
  • To demonstrate the versatility of this method for producing various TMS and transition metal dichalcogenides.

Main Methods:

  • Utilizing a supramolecular micelle hydrogel as a printable ink, infused with metal salts, and subsequently calcined.
  • Employing sodium dodecyl sulfonate (SDS) micelles for crosslinking, stabilization, and as a sulfur source during calcination.
  • Investigating the formation mechanism using Ni3S2 as an example, and evaluating its catalytic activity.

Main Results:

  • Successfully fabricated 3D-structured TMS (e.g., FeS2, Cu2S, Ni3S2, Co9S8) and metal sulfides (e.g., PbS, SnS).
  • Extended the method to produce transition metal dichalcogenides like MoS2 and WS2.
  • Ni3S2 demonstrated significant catalytic activity in oxygen evolution reactions (OER) and hydrogen evolution reactions (HER).

Conclusions:

  • A simple and versatile micellar hydrogel-derived strategy enables the fabrication of advanced 3D-structured TMS materials.
  • This approach offers a promising pathway for creating novel TMS with potential applications in catalysis.