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Related Experiment Video

Updated: Jul 27, 2025

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

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Published on: November 28, 2017

Lanthanide-doped MoS

Yu Hao^1,2, Liping Wang^3,4, Liang-Feng Huang^5,6,7

¹Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315201, Ningbo, China.

Nature Communications

|June 5, 2023

Summary

This summary is machine-generated.

Lanthanide-doped molybdenum disulfide exhibits high oxygen reduction activity, crucial for fuel cells and nanodevices. This activity is linked to a unique orbital-chemistry mechanism, offering insights into material design.

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Using Laser Scanning Microscopy to Determine Electromigration in Molybdenum Disilicide

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Published on: May 23, 2025

Area of Science:

Materials Science
Electrochemistry
Computational Chemistry

Background:

Molybdenum disulfide (MoS2) is vital in catalysis and optoelectronics.
Lanthanide (Ln) doping modifies MoS2 properties.
Oxygen reduction impacts fuel cells and nanodevice stability.

Purpose of the Study:

Investigate lanthanide doping effects on MoS2 oxygen reduction activity.
Elucidate the mechanism behind enhanced electrochemical performance.
Establish trends in activity based on lanthanide type.

Main Methods:

Density-functional theory (DFT) calculations.
Current-potential polarization curve simulations.
Analysis of adsorbate stabilization and orbital hybridization.

Main Results:

Oxygen reduction activity at Ln-MoS2/water interfaces shows biperiodic scaling with Ln type.
A defect-state pairing mechanism stabilizes key adsorbates (hydroxyl, hydroperoxyl).
Activity trends correlate with intraatomic orbital hybridization and Ln-S bonding.

Conclusions:

Lanthanide doping significantly enhances oxygen reduction activity in MoS2.
A generic orbital-chemistry mechanism explains observed biperiodic trends.
Findings guide the rational design of advanced MoS2-based materials.