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Synthesis of fine nano-Pt supported on carbon nanotubes for hydrogen oxidation under alkaline conditions

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  • Yin, Yan
  • Yue, Runfei
  • Pei, Yabiao
  • Zhu, Weikang
  • Liu, Haotian
  • Yin, Shuoyao
  • Liu, Xin
  • Wang, Lianqin
  • Zhang, Junfeng

Abstract

Developing highly efficient and robust hydrogen oxidation reaction (HOR) catalysts with low Pt loading is essential for anion exchange membrane fuel cells (AEMFCs). Herein, Pt nanoparticles supported on functionalized carbon nanotubes (CNTs) are synthesized by a thermal reduction for HOR. The influence of functionalization and the reduction temperatures on Pt/CNTs have been investigated. The results indicate that Pt/CNT obtained at 250 °C has high activity (77.4 mA mg−1Pt @η = 50 mV, 3.5 times of commercial 20% Pt/C) and superior stability toward HOR, attributed to the high dispersity of ultrafine nano-Pt on the nanotubes. The knowledge obtained in this work may guide the application of CNTs as the support for low Pt catalysts in alkaline HOR.

Suggested Citation

  • Yin, Yan & Yue, Runfei & Pei, Yabiao & Zhu, Weikang & Liu, Haotian & Yin, Shuoyao & Liu, Xin & Wang, Lianqin & Zhang, Junfeng, 2023. "Synthesis of fine nano-Pt supported on carbon nanotubes for hydrogen oxidation under alkaline conditions," Energy, Elsevier, vol. 281(C).
    • Handle: RePEc:eee:energy:v:281:y:2023:i:c:s0360544223017334
    DOI: 10.1016/j.energy.2023.128339
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    References listed on IDEAS

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    1. Roudbari, Mohsen Najafi & Ojani, Reza & Raoof, Jahan Bakhsh, 2020. "Nitrogen functionalized carbon nanotubes as a support of platinum electrocatalysts for performance improvement of ORR using fuel cell cathodic half-cell," Renewable Energy, Elsevier, vol. 159(C), pages 1015-1028.
    2. Yanrong Xue & Lin Shi & Xuerui Liu & Jinjie Fang & Xingdong Wang & Brian P. Setzler & Wei Zhu & Yushan Yan & Zhongbin Zhuang, 2020. "A highly-active, stable and low-cost platinum-free anode catalyst based on RuNi for hydroxide exchange membrane fuel cells," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    3. Changhong Zhan & Yong Xu & Lingzheng Bu & Huaze Zhu & Yonggang Feng & Tang Yang & Ying Zhang & Zhiqing Yang & Bolong Huang & Qi Shao & Xiaoqing Huang, 2021. "Subnanometer high-entropy alloy nanowires enable remarkable hydrogen oxidation catalysis," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
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