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<p>Pistachio shell, which has a layered, porous structure, is a natural polymer composed of lignin, hemicellulose and cellulose. This study investigates the catalytic performance of a composite catalyst made from pistachio shell (PS) and Raney Ni (Ra-Ni) in sodium borohydride (NaBH<sub>4</sub>) hydrolysis for hydrogen production. Characterization techniques, ATR-FTIR, XRD, TGA, and FESEM-EDX, were utilized to analyze the morphology and structure of the catalyst. To assess catalytic performance, the rate of H<sub>2</sub> generation was measured using a water displacement method at 298&#xa0;K. A 0.15&#xa0;g sample of catalyst, composed of 1:1 weight ratio of Ra-Ni and ball milled PS, was mixed with 100 mL of water and 1 wt% NaBH<sub>4</sub>. H<sub>2</sub> production rate was monitored, providing insights into the catalyst’s efficiency and effectiveness. Results demonstrated that the Ra-Ni and PS composite exhibited high catalytic activity, with H<sub>2</sub> generation rates of 409 mL g<sup>− 1</sup> catalyst after 450&#xa0;s and 430 mL g<sup>− 1</sup> catalyst after 900&#xa0;s, respectively. Activation energy of Ra-Ni-PS was 23.30&#xa0;kJ mol<sup>− 1</sup>. The produced composite has promising potential for H<sub>2</sub> production applications via NaBH<sub>4</sub> hydrolysis.</p>

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Lignocellulosic biomass based catalysis for hydrogen generation effect of pistachio shells and Raney nickel in NaBH4 hydrolysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月29日

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  • Sedef Şişmanoğlu,
  • Luay Duraid Abed Abed,
  • Mehmet Erman Mert,
  • Başak Doğru Mert

摘要

Pistachio shell, which has a layered, porous structure, is a natural polymer composed of lignin, hemicellulose and cellulose. This study investigates the catalytic performance of a composite catalyst made from pistachio shell (PS) and Raney Ni (Ra-Ni) in sodium borohydride (NaBH4) hydrolysis for hydrogen production. Characterization techniques, ATR-FTIR, XRD, TGA, and FESEM-EDX, were utilized to analyze the morphology and structure of the catalyst. To assess catalytic performance, the rate of H2 generation was measured using a water displacement method at 298 K. A 0.15 g sample of catalyst, composed of 1:1 weight ratio of Ra-Ni and ball milled PS, was mixed with 100 mL of water and 1 wt% NaBH4. H2 production rate was monitored, providing insights into the catalyst’s efficiency and effectiveness. Results demonstrated that the Ra-Ni and PS composite exhibited high catalytic activity, with H2 generation rates of 409 mL g− 1 catalyst after 450 s and 430 mL g− 1 catalyst after 900 s, respectively. Activation energy of Ra-Ni-PS was 23.30 kJ mol− 1. The produced composite has promising potential for H2 production applications via NaBH4 hydrolysis.