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Updated: Jul 10, 2026

Reverse Microemulsion-mediated Synthesis of Monometallic and Bimetallic Early Transition Metal Carbide and Nitride Nanoparticles

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Published on: November 27, 2015

Structural Evolution Study of Titanium-Vanadium-Niobium Nanoparticles from Single to Multicomponent Systems.

Yi-Rong Liu¹, Yan Jiang², Lang Bai¹

¹Public Experimental Teaching Center, Panzhihua University, Panzhihua, Sichuan 61700, China.

|November 18, 2024

Summary

This study found that titanium, vanadium, and niobium nanoparticles exhibit similar low-energy structures. The element space position replacement (ESPR) method efficiently reconstructs these structures, offering insights for designing transition metal nanostructures with enhanced catalytic properties.

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Area of Science:

Computational Materials Science
Nanotechnology
Quantum Chemistry

Background:

Understanding the structural and electronic properties of transition metal nanoparticles is crucial for developing advanced materials.
Previous work established a basin-hopping with mirror-rotation sampling (BH-MRS) method combined with density functional theory (DFT) for structural property studies.

Purpose of the Study:

To investigate the structural properties of titanium (Ti), vanadium (V), and niobium (Nb) systems, including their ternary alloys.
To explore the efficiency of the element space position replacement (ESPR) method for reconstructing low-energy nanostructure configurations.
To analyze the electronic properties and stability of these transition metal nanoparticles.

Main Methods:

Employed a revised basin-hopping with mirror-rotation sampling (BH-MRS) method integrated with density functional theory (DFT).
Investigated Ti_n, V_n, Nb_n, and Ti_xV_yNb_z (where n=3m, m=1-7 and n=1-7 for ternary systems) nanoparticles.
Utilized the element space position replacement (ESPR) method for reconstructing low-energy structures, comparing its efficiency with BH-MRS.

Main Results:

Equiatomic Ti_nV_nNb_n systems share similar lowest energy structures with their single-component counterparts (Ti_n, V_n, Nb_n) of the same size.
The ESPR method proved more efficient than BH-MRS in finding the lowest energy structure for the Ti₇V₇Nb₇ system.
Ti_n systems demonstrated superior electron trapping ability compared to V_n, Nb_n, and Ti_nV_nNb_n systems, with minimal impact on stability from V and Nb substitution.

Conclusions:

The structural similarity between single and multicomponent titanium-vanadium-niobium nanoparticles simplifies structural prediction.
The ESPR method offers an efficient alternative for reconstructing low-energy nanostructures.
Findings provide valuable insights for designing transition metal nanostructures with potentially enhanced catalytic properties.