Scholarlink

<p>This work presents a study of chitosan/carbon nanotube (CS/CNTs) membranes, crosslinked with ethylene glycol diglycidyl ether (EDGE) and doped with polypyrrole (PPy), for use as proton exchange membranes (PEM). The membranes were synthesized by evaporation and treated with glow discharge plasma (GDP). Morphological analysis showed that membranes m2 and m3 had more homogeneous surface roughness compared to membranes m4, m5, and m6, which showed more irregularities. Membrane m1, without CNTs, showed a more homogeneous surface. FT-IR spectroscopy confirmed chemical interactions such as O–H, C–H, C–N, and C–O–C associated with chitosan, along with C = O interactions linked to the EDGE crosslinking. Thermogravimetric analysis showed that membranes m2 and m3 exhibited the best thermal stability. The highest electrical conductivity (2.01 × 10<sup>−2</sup> S/cm) was obtained with membrane m3, while membranes m4, m5, and m6 showed lower conductivity. Overall, carbon nanotubes and GDP improved the thermal and electrical stability of PEMs.</p> Graphical abstract <p></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

Proton exchange membrane based on chitosan and carbon nanotubes

  • 期刊论文

  • 发表日期：

    2026年5月7日

查看全文
  • Omar C. Díaz-Lobatón,
  • Celso Hernández-Tenorio,
  • Hilda Moreno‑Saavedra,
  • Claudia A. Cortes-Escobedo,
  • Arturo Tepale-Cortés,
  • Juan C. Carranza-Cruz

摘要

This work presents a study of chitosan/carbon nanotube (CS/CNTs) membranes, crosslinked with ethylene glycol diglycidyl ether (EDGE) and doped with polypyrrole (PPy), for use as proton exchange membranes (PEM). The membranes were synthesized by evaporation and treated with glow discharge plasma (GDP). Morphological analysis showed that membranes m2 and m3 had more homogeneous surface roughness compared to membranes m4, m5, and m6, which showed more irregularities. Membrane m1, without CNTs, showed a more homogeneous surface. FT-IR spectroscopy confirmed chemical interactions such as O–H, C–H, C–N, and C–O–C associated with chitosan, along with C = O interactions linked to the EDGE crosslinking. Thermogravimetric analysis showed that membranes m2 and m3 exhibited the best thermal stability. The highest electrical conductivity (2.01 × 10−2 S/cm) was obtained with membrane m3, while membranes m4, m5, and m6 showed lower conductivity. Overall, carbon nanotubes and GDP improved the thermal and electrical stability of PEMs.

Graphical abstract