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Related Experiment Video

Updated: Jan 24, 2026

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

N-Doped amorphous MoS_x for the hydrogen evolution reaction.

Ruimin Ding¹, Mengchao Wang¹, Xianfen Wang¹

¹State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China. lbl604@sxicc.ac.cn.

|June 4, 2019

Summary

Nitrogen (N) doping in amorphous molybdenum disulfide (a-MoS_x) significantly enhances its performance in the electrochemical hydrogen evolution reaction (HER). This doping strategy improves active sites and conductivity, leading to superior catalytic activity.

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Area of Science:

Materials Science
Electrochemistry
Catalysis

Background:

Crystalline MoS₂ (c-MoS₂) doping with nitrogen (N) for hydrogen evolution reaction (HER) is known.
Amorphous MoS_x (a-MoS_x) is a more active HER catalyst, but N-doping effects are unexplored.

Purpose of the Study:

To fabricate N-doped a-MoS_x for the first time.
To investigate the role of N dopants in a-MoS_x for HER performance.

Main Methods:

Simple fabrication method for N-doped a-MoS_x.
X-ray photoelectron spectroscopy (XPS) for material characterization.
First-principles calculations for theoretical analysis.

Main Results:

N doping in basal plane S^2- sites is crucial for HER enhancement and stability.
N-doped a-MoS_x shows increased active sites and improved conductivity.
Calculations confirm improved hydrogen adsorption free energy at unsaturated Mo^V sites.

Conclusions:

N-doped a-MoS_x is a highly effective HER catalyst.
N doping in basal plane S^2- sites is key to improved HER activity.
This work offers insights for developing nonmetal-doped MoS_x catalysts for HER.