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

Preparation and Reactions of Sulfides02:26

Preparation and Reactions of Sulfides

4.7K
Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
4.7K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

41.2K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
41.2K
Metallic Solids02:37

Metallic Solids

18.1K
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....
18.1K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

26.0K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
26.0K

You might also read

Related Articles

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

Sort by
Same author

Zwitterion-Modulated Quasi-Solid-State Polymer Electrolyte with Janus Interface toward Low-Temperature Lithium Metal Batteries.

Journal of the American Chemical Society·2026
Same author

Metallophilic Non-van der Waals Roll-ups Engineered for Long-Life Metal Batteries.

Advanced materials (Deerfield Beach, Fla.)·2025
Same author

Non-van der Waals superlattices of carbides and carbonitrides.

Nature·2025
Same author

MXene-configured graphite towards long-life lithium-ion batteries under extreme conditions.

Nature communications·2025
Same author

Topological Transformation of MXenes to Non-Van Der Waals Artificial Solids with Well-Defined Structure.

Advanced materials (Deerfield Beach, Fla.)·2025
Same author

High-Entropy Modulation on Na-O Configuration Toward Ultrastable Sodium Layered Oxide.

Small (Weinheim an der Bergstrasse, Germany)·2025

Related Experiment Video

Updated: May 26, 2025

Preparation of Large-area Vertical 2D Crystal Hetero-structures Through the Sulfurization of Transition Metal Films for Device Fabrication
08:50

Preparation of Large-area Vertical 2D Crystal Hetero-structures Through the Sulfurization of Transition Metal Films for Device Fabrication

Published on: November 28, 2017

9.1K

High-Entropy 1T-Phase Quantum Sheets of Transition-Metal Disulfides.

Haiyang Wang1, Yu Shi1, Ming Li1

  • 1School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.

Advanced Materials (Deerfield Beach, Fla.)
|February 21, 2025
PubMed
Summary
This summary is machine-generated.

Researchers developed a high-entropy strategy to create 1T-phase transition-metal disulfide quantum sheets. These nanomaterials exhibit enhanced electrocatalytic activity for lithium-sulfur batteries, improving performance and stability.

Keywords:
i‐MAX phase1T phaseTMDshigh‐entropyquantum sheets

More Related Videos

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

1.9K
Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol
10:41

Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol

Published on: December 20, 2016

13.9K

Related Experiment Videos

Last Updated: May 26, 2025

Preparation of Large-area Vertical 2D Crystal Hetero-structures Through the Sulfurization of Transition Metal Films for Device Fabrication
08:50

Preparation of Large-area Vertical 2D Crystal Hetero-structures Through the Sulfurization of Transition Metal Films for Device Fabrication

Published on: November 28, 2017

9.1K
Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

1.9K
Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol
10:41

Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol

Published on: December 20, 2016

13.9K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Electrochemistry

Background:

  • Transition-metal dichalcogenides (TMDs) are promising 2D nanomaterials with unique quantum dot properties.
  • Producing 1T-phase TMD quantum sheets is challenging due to basal plane sliding in small lateral sizes.

Purpose of the Study:

  • To develop an efficient strategy for producing 1T-phase transition-metal disulfide quantum sheets.
  • To investigate the potential of these quantum sheets in lithium-sulfur batteries.

Main Methods:

  • A high-entropy strategy using multiple metal atoms with large size differences was employed.
  • Topological conversion of in-plane ordered carbide laminates (i-MAX) to high-entropy transition-metal disulfides facilitated 1T-phase formation.
  • Controlled exfoliation produced quantum sheets with average size of 4.5 nm and thickness of 0.7 nm.

Main Results:

  • Successfully synthesized 1T-phase transition-metal disulfide quantum sheets.
  • Achieved high electrocatalytic activity for lithium polysulfides.
  • Demonstrated a good rate performance of 744 mAh g-1 at 5 C in lithium-sulfur batteries.
  • Exhibited long cycle stability.

Conclusions:

  • The high-entropy strategy is effective for producing 1T-phase TMD quantum sheets.
  • These quantum sheets show significant potential for advanced energy storage applications, particularly in lithium-sulfur batteries.