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<p>In this paper, a distinctive two-dimensional layered material, MXene, was acquired by etching MAX phase material with HF, which possesses excellent electrical conductivity and corrosion resistance. Employing MXene as the carrier, Pt nanoparticles were successfully loaded onto Ti<sub>3</sub>C<sub>2</sub> MXene through the glycol condensation reduction approach. This method features controllable conditions, high efficiency, and environmental friendliness. The fabricated Pt/Ti<sub>3</sub>C<sub>2</sub> MXene exhibits outstanding electrochemical activity and remarkable cycling stability, addressing the issues of facile corrosion and poor stability encountered by traditional Pt/C. The electrochemical active surface area (ECSA) of Pt/Ti<sub>3</sub>C<sub>2</sub> MXene was determined to be 87.6 m<sup>2</sup>/g via cyclic voltammetry testing. In the accelerated degradation experiment, after 10,000 cycles, the activity of Ti<sub>3</sub>C<sub>2</sub> MXene decreased by merely 9.8%, while that of Pt/C declined by 25.2%. This disparity can be attributed to Ti<sub>3</sub>C<sub>2</sub> MXene unique layered structure, high electrical conductivity, and other favorable physicochemical properties. It not only demonstrates that Ti<sub>3</sub>C<sub>2</sub> MXene is an excellent catalyst carrier but also fully substantiates that Pt/Ti<sub>3</sub>C<sub>2</sub> MXene holds greater advantages over traditional Pt/C. Hence, Pt/Ti<sub>3</sub>C<sub>2</sub> MXene has substantial potential as a fuel cell catalyst.</p>

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Loading Pt onto layered Ti3C2 MXene to become an efficient and stable fuel cell catalyst

  • 期刊论文

  • 发表日期：

    2025年1月14日

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  • Kui Cao,
  • Zhen Tan,
  • Qi Lv,
  • Fanen Zeng,
  • Xun Yang,
  • Yue Han,
  • Bing Xu,
  • Lu Lu

摘要

In this paper, a distinctive two-dimensional layered material, MXene, was acquired by etching MAX phase material with HF, which possesses excellent electrical conductivity and corrosion resistance. Employing MXene as the carrier, Pt nanoparticles were successfully loaded onto Ti3C2 MXene through the glycol condensation reduction approach. This method features controllable conditions, high efficiency, and environmental friendliness. The fabricated Pt/Ti3C2 MXene exhibits outstanding electrochemical activity and remarkable cycling stability, addressing the issues of facile corrosion and poor stability encountered by traditional Pt/C. The electrochemical active surface area (ECSA) of Pt/Ti3C2 MXene was determined to be 87.6 m2/g via cyclic voltammetry testing. In the accelerated degradation experiment, after 10,000 cycles, the activity of Ti3C2 MXene decreased by merely 9.8%, while that of Pt/C declined by 25.2%. This disparity can be attributed to Ti3C2 MXene unique layered structure, high electrical conductivity, and other favorable physicochemical properties. It not only demonstrates that Ti3C2 MXene is an excellent catalyst carrier but also fully substantiates that Pt/Ti3C2 MXene holds greater advantages over traditional Pt/C. Hence, Pt/Ti3C2 MXene has substantial potential as a fuel cell catalyst.