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<p>Mesoporous TiN nanoparticles were prepared via ammonia reduction nitridation of TiO<sub>2</sub> nanoparticles synthesized by nonhydrolytic sol–gel method using Pluronic P123 as structure-directing agent. Wide-angle XRD analysis revealed a high titanium nitride content with Pluronic P123 loading. SEM analysis of TiN nanoparticles shows that high amounts of Pluronic P123 could lead TiN nanoparticles to appear spherical morphology with the primary particle size of about 20 nm. Small-angle XRD analysis indicates the introduction of the suitable Pluronic P123 content plays a role in the formation of ordered mesoporous channel structure. The BET specific surface area and mesoporous volume of TiN nanoparticles depends on the amounts of Pluronic P123, and the pore structure of mesoporous TiN nanoparticles tends to be ordered with the increase of Pluronic P123 introduction. When the amount of Pluronic P123 introduced was 2.0&#xa0;g, the mesopores with the diameter of 8–20&#xa0;nm is the most developed in the sample, which is beneficial to improve the electrochemical properties of the TiN electrode. The specific capacitance of mesoporous TiN electrode is 233.2 F/g at a current density of 50&#xa0;mA/g, which is 1.3 times that of TiN electrode without Pluronic P123. This is due to the large number of ordered mesoporous, which can improve the migration rate and storage efficiency of electrolyte ions in the TiN electrode material.</p>

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Synthesis of mesoporous TiN nanoparticles using Pluronic P123 as structure-directing agent and its electrochemical properties for supercapacitors

  • 期刊论文

  • 发表日期：

    2025年1月27日

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  • Lifang Zhang,
  • Dongfeng Lv,
  • Hengyong Wei,
  • Guofan Zhang,
  • Huixing Liu,
  • Jie Ni,
  • Jinglong Bu

摘要

Mesoporous TiN nanoparticles were prepared via ammonia reduction nitridation of TiO2 nanoparticles synthesized by nonhydrolytic sol–gel method using Pluronic P123 as structure-directing agent. Wide-angle XRD analysis revealed a high titanium nitride content with Pluronic P123 loading. SEM analysis of TiN nanoparticles shows that high amounts of Pluronic P123 could lead TiN nanoparticles to appear spherical morphology with the primary particle size of about 20 nm. Small-angle XRD analysis indicates the introduction of the suitable Pluronic P123 content plays a role in the formation of ordered mesoporous channel structure. The BET specific surface area and mesoporous volume of TiN nanoparticles depends on the amounts of Pluronic P123, and the pore structure of mesoporous TiN nanoparticles tends to be ordered with the increase of Pluronic P123 introduction. When the amount of Pluronic P123 introduced was 2.0 g, the mesopores with the diameter of 8–20 nm is the most developed in the sample, which is beneficial to improve the electrochemical properties of the TiN electrode. The specific capacitance of mesoporous TiN electrode is 233.2 F/g at a current density of 50 mA/g, which is 1.3 times that of TiN electrode without Pluronic P123. This is due to the large number of ordered mesoporous, which can improve the migration rate and storage efficiency of electrolyte ions in the TiN electrode material.