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Dergiler / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2026 / Cilt: 26 Sayı: 4

Yeşil Sentez ve Kimyasal İndirgeme Yöntemlerinin Birleştirilmesiyle Hazırlanan Bimetalik Co–Zn–B Katalizörü Kullanılarak NaBH4'ün Hidrolizi ile Hidrojen Üretimi

Hydrogen Production in the Hydrolysis of NaBH₄ Using Bimetallic Co–Zn–B Catalyst Prepared by Combined Base Methods

Mehmet Salih Keskin0000-0001-9862-1590
Sayfa
847–861
Yayın Tarihi
2026-08-03
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Elde edilen sonuçlar, Co–Zn–B nanokompozitlerinin sürdürülebilir hidrojen üretimi açısından yüksek bir potansiyele sahip olduğunu göstermektedir.

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Amaç & Hipotez:Bu çalışma, sera gazı emisyonlarının azaltılmasına katkı sağlayan çevreci bir enerji taşıyıcısı olan hidrojenin, sodyum borhidrür (NaBH4) çözeltisinin hidrolizi yoluyla elde edilmesini amaçlamaktadır.
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Temel Bulgular & Veri:Reaksiyon sıcaklığı, katalizör miktarı ile NaBH4 ve NaOH derişimleri gibi parametrelerin hidrojen üretim hızı üzerindeki etkileri sistematik olarak değerlendirilmiştir.
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Sonuç & Katkı:Elde edilen sonuçlar, Co–Zn–B nanokompozitlerinin sürdürülebilir hidrojen üretimi açısından yüksek bir potansiyele sahip olduğunu göstermektedir.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Yeşil Sentez · Karabaş otu · Enerji

Özet

Bu çalışma, sera gazı emisyonlarının azaltılmasına katkı sağlayan çevreci bir enerji taşıyıcısı olan hidrojenin, sodyum borhidrür (NaBH4) çözeltisinin hidrolizi yoluyla elde edilmesini amaçlamaktadır. Bu doğrultuda, karabaş otu ekstraktı destekli Co–Zn–B nanomalzemeleri, yeşil sentez ve kimyasal indirgeme tekniklerinin birlikte uygulanmasıyla hazırlanmıştır. Üretilen malzemelerin yapısal ve morfolojik özellikleri BET, XRD, FT-IR ve SEM–EDX yöntemleri kullanılarak karakterize edilmiştir. Reaksiyon sıcaklığı, katalizör miktarı ile NaBH4 ve NaOH derişimleri gibi parametrelerin hidrojen üretim hızı üzerindeki etkileri sistematik olarak değerlendirilmiştir. Zn/Co mol oranı 1:4 olarak belirlenmiş ve optimum koşullarda (%5 NaOH, %1 NaBH4, 0.02 g katalizör ve 30 °C) hidrojen üretim hızı 5675 mL dak-1 g-1, aktivasyon enerjisi ise 18.49 kJ mol-1 olarak hesaplanmıştır. Ayrıca, katalizörün dayanıklılığı, yeniden kullanılabilirliği ve farklı sıcaklıklardaki kinetik davranışı da incelenmiştir. Elde edilen sonuçlar, Co–Zn–B nanokompozitlerinin sürdürülebilir hidrojen üretimi açısından yüksek bir potansiyele sahip olduğunu göstermektedir.

Abstract

This study aims to produce hydrogen, an environmentally friendly energy carrier that contributes to the reduction of greenhouse gas emissions, through the hydrolysis of sodium borohydride (NaBH4) solution. Accordingly, Co–Zn–B nanomaterials supported by Lavandula stoechas extract were synthesized through the combined application of green synthesis and chemical reduction techniques. The structural and morphological properties of the synthesized materials were characterized using BET, XRD, FT-IR, and SEM–EDX analyses. The effects of parameters such as reaction temperature, catalyst amount, and NaBH4 and NaOH concentrations on the hydrogen generation rate were systematically investigated. The Zn/Co molar ratio was determined as 1:4, and under the optimum conditions (5% NaOH, 1% NaBH4, 0.02 g catalyst, and 30 °C), the hydrogen generation rate and activation energy were calculated as 5675 mL min-1 g-1 and 18.49 kJ mol-1, respectively. In addition, the durability, reusability, and kinetic behavior of the catalyst at different temperatures were also examined. The obtained results demonstrate that Co–Zn–B nanocomposites possess strong potential for sustainable hydrogen production.

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Bu Makaleye Atıf Yap

Keskin, M. S. (2026). Yeşil Sentez ve Kimyasal İndirgeme Yöntemlerinin Birleştirilmesiyle Hazırlanan Bimetalik Co–Zn–B Katalizörü Kullanılarak NaBH4'ün Hidrolizi ile Hidrojen Üretimi. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 26 Sayı: 4, 847–861. https://doi.org/10.35414/akufemubid.1827415

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