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Journals / Bor Dergisi / 2026 / Cilt: 9 Sayı: 3

Characterization and oxygen reduction activities of boron-doped ordered mesoporous carbons synthesized by soft-template method

Taner Türker(Kalyon PV - Güneş Enerjisi Teknolojileri Üretim Merkezi)0000-0001-9059-0224
Çiğdem Güldür(GAZİ ÜNİVERSİTESİ)0000-0002-4404-6882
Silver Güneş(GAZİ ÜNİVERSİTESİ)0000-0001-7608-3779
Pages
104–110
Publication Date
2024-09-30
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The synthesis temperature did not have an overall positive effect on the doping of boron with a fixed amount of boron source.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Boron-doped ordered mesoporous carbons (B-OMCs) were synthesized by a onepot soft-templating strategy, where resorcinol and formaldehyde were used as carbon sources, boric acid was used as boron source, and Pluronic F127 was used as structure directing agent.
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Key Findings & Data:However, there was a clear increase in the doped-boron content when both the temperature and the boric acid content were increased.
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Conclusion & Impact:The synthesis temperature did not have an overall positive effect on the doping of boron with a fixed amount of boron source.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Ordered mesoporous carbon · Boron-doping · Soft-template synthesis

Abstract

Boron-doped ordered mesoporous carbons (B-OMCs) were synthesized by a onepot soft-templating strategy, where resorcinol and formaldehyde were used as carbon sources, boric acid was used as boron source, and Pluronic F127 was used as structure directing agent. The effect of temperature and the boric acid content on the physical and electrochemical properties of the resultant materials were investigated. Inductively coupled plasma atomic emission spectroscopy (ICP-OES) was used for elemental analysis of the samples. The synthesis temperature did not have an overall positive effect on the doping of boron with a fixed amount of boron source. However, there was a clear increase in the doped-boron content when both the temperature and the boric acid content were increased. Nitrogen adsorption analysis isotherms showed that the samples had similar ordered mesoporous structures with surface areas varying between 535 and 712 m2/g. The uniform morphology in transmission electron microscopy (TEM) also confirmed the ordered mesoporous structure. Employing cyclic voltammetry analysis, the highest oxygen reduction activity (-0.28 mA/cm2) was achieved with the highest boron-doping percentage (0.29%) for a synthesis temperature of 77°C and boric acid to carbon ratio of 2. These results show that the boron-doped ordered mesoporous carbon is a promising material as catalyst support for improving the oxygen reduction reaction activity.

Özet

Boron-doped ordered mesoporous carbons (B-OMCs) were synthesized by a onepot soft-templating strategy, where resorcinol and formaldehyde were used as carbon sources, boric acid was used as boron source, and Pluronic F127 was used as structure directing agent. The effect of temperature and the boric acid content on the physical and electrochemical properties of the resultant materials were investigated. Inductively coupled plasma atomic emission spectroscopy (ICP-OES) was used for elemental analysis of the samples. The synthesis temperature did not have an overall positive effect on the doping of boron with a fixed amount of boron source. However, there was a clear increase in the doped-boron content when both the temperature and the boric acid content were increased. Nitrogen adsorption analysis isotherms showed that the samples had similar ordered mesoporous structures with surface areas varying between 535 and 712 m2/g. The uniform morphology in transmission electron microscopy (TEM) also confirmed the ordered mesoporous structure. Employing cyclic voltammetry analysis, the highest oxygen reduction activity (-0.28 mA/cm2) was achieved with the highest boron-doping percentage (0.29%) for a synthesis temperature of 77°C and boric acid to carbon ratio of 2. These results show that the boron-doped ordered mesoporous carbon is a promising material as catalyst support for improving the oxygen reduction reaction activity.

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Cite This Article

Türker, T., Güldür, Ç., Güneş, S. (2024). Characterization and oxygen reduction activities of boron-doped ordered mesoporous carbons synthesized by soft-template method. Bor Dergisi, Cilt: 9 Sayı: 3, 104–110. https://doi.org/10.30728/boron.1432885

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