Scholarlink

<p>Recent research has focused on synthesizing excellent and inexpensive transition metal-based oxides as efficient electrocatalysts for electrochemical water splitting and energy storage applications, which is challenging. Herein, CuO nanoparticles were synthesized via a hydrothermal process at three different temperatures (180°C, 200°C, and 220°C) to investigate how synthesis temperature affects their electrochemical performance. The synthesized CuO nanoparticles were thoroughly characterized using x-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) surface area analysis, diffuse reflectance spectroscopy (DRS), and scanning electron microscopy (SEM). Electrochemical measurements, including cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS), revealed that CuO nanoparticles synthesized at 180°C exhibited the highest specific capacitance of 1004 F g<sup>−1</sup> at 1 A g<sup>−1</sup> and remarkable electrocatalytic activity for HER (240&#xa0;mV@ 10&#xa0;mA&#xa0;cm<sup>-2</sup>). This enhancement is attributed to their optimized morphology and increased surface area (9 m<sup>2</sup>/g). These findings demonstrate that the synthesis temperature plays a crucial role in tuning the properties of CuO nanoparticles, making them promising candidates for advanced energy storage systems and sustainable hydrogen production.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Tuning the Electrochemical Performance of CuO Nanoparticles via Hydrothermal Synthesis

  • 期刊论文

  • 发表日期：

    2025年1月6日

查看全文
  • Sonadia,
  • Abdul Hakim Shah,
  • Saima Perveen,
  • Khurram Shehzad Ayub,
  • Anwar Ul-Hamid,
  • Fahad Azad

摘要

Recent research has focused on synthesizing excellent and inexpensive transition metal-based oxides as efficient electrocatalysts for electrochemical water splitting and energy storage applications, which is challenging. Herein, CuO nanoparticles were synthesized via a hydrothermal process at three different temperatures (180°C, 200°C, and 220°C) to investigate how synthesis temperature affects their electrochemical performance. The synthesized CuO nanoparticles were thoroughly characterized using x-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) surface area analysis, diffuse reflectance spectroscopy (DRS), and scanning electron microscopy (SEM). Electrochemical measurements, including cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS), revealed that CuO nanoparticles synthesized at 180°C exhibited the highest specific capacitance of 1004 F g−1 at 1 A g−1 and remarkable electrocatalytic activity for HER (240 mV@ 10 mA cm-2). This enhancement is attributed to their optimized morphology and increased surface area (9 m2/g). These findings demonstrate that the synthesis temperature plays a crucial role in tuning the properties of CuO nanoparticles, making them promising candidates for advanced energy storage systems and sustainable hydrogen production.