A preparation method of a colloidal Co9S8 nanowire

Co9S8 nanowires with tunable diameter were successfully prepared by solution-solid-solid catalytic growth and alkyl phosphorus treatment, solving the problem of cobalt-based nanomaterial synthesis in the prior art and realizing the uniformity and quantum confinement effect of the nanowires.

CN116903049BActive Publication Date: 2026-03-03UNIV OF SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-21
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing technologies make it difficult to achieve the controllable synthesis of cobalt-based nanomaterials, especially Co9S8 nanowires, particularly in terms of diameter, where it is difficult to achieve quantum confinement effects and strong carrier-carrier interactions.

Method used

Colloidal Co9S8 nanowires with adjustable diameter were prepared by using a solution-solid-solid catalytic growth method, by controlling the reaction temperature and removing the Ag2S endpoints with alkyl phosphorus.

Benefits of technology

Uniform synthesis of Co9S8 nanowires with diameters below 100 nm was achieved, exhibiting quantum confinement effects and good dispersion with no obvious defects.

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Abstract

The application provides a preparation method of colloidal Co9S8 nanowires, which comprises the following steps: mixing a silver source, a cobalt source, a sulfur source and an organic solvent, heating to a reaction temperature and keeping for a period of time to obtain Ag2S-Co9S8 nanowires with adjustable diameters; and then removing Ag2S end points in the Ag2S-Co9S8 nanowires by using alkyl phosphorus to obtain colloidal Co9S8 nanowires. Based on the solution phase-solid phase-solid phase catalytic growth method, the colloidal Co9S8 nanowires with uniform size, adjustable diameter and no obvious defects are synthesized by adjusting the reaction temperature.
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Citation Information

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