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Akademisyenler > Kutalmış GÖKKUŞ > Yayın Detayı

Catalytic Application of a Zwitterionic Polymeric Network for Hydrogen Generation via Sodium Borohydride Methanolysis     
Yazarlar (7)
Dr. Öğr. Üyesi Kutalmış GÖKKUŞ Dr. Öğr. Üyesi Kutalmış GÖKKUŞ
Kastamonu Üniversitesi, Türkiye
Sefika Kaya
Mahmut Gur
Derya Yildiz
Erol Yildirim
Hilal Kivrak
Vural Butun
Devamını Göster
Özet
Hydrogen energy is widely regarded as one of the most promising alternatives to fossil fuels. This study focuses on the synthesis of an environmentally friendly zwitterionic polymer catalyst, Poly(Quaternized-2-diethylaminoethyl methacrylate) (P(Q-DMA)), was synthesized and evaluated for the first time as a metal-free catalyst in NaBH4 methanolysis for hydrogen production. Owing to its zwitterionic nature, P(Q-DMA) was designed to interact synergistically with methanol and sodium borohydride through multiple mechanisms, including ion–dipole, ion–ion, and hydrogen-bonding interactions. The structure–function relationship was investigated using surface analysis (BET, SEM and Zeta), chemical characterization (FTIR, TGA), and kinetic modeling. Systematic optimization revealed high catalytic efficiency, achieving a hydrogen generation rate (HGR) of 443.4 mL H2 min−1 gcat−1 and a mass-specific HGR of 8868.4 mL H2 min−1 gcat−1, with a low activation energy (Ea) of 19.91 kJ mol−1. The polymer also exhibited good electrocatalytic activity (0.72 mA cm−2 at 0.8 V in 1 M NaOH + 0.1 M NaBH4) and stable performance during NaBH4 electrooxidation. Importantly, zeta potential values shifted from + 13.1 mV before reaction to − 12.2 mV (unwashed) and − 8.43 mV (washed) after reaction, indicating surface modification by adsorbed borate species. These results highlight P(Q-DMA) as a promising biocompatible, metal-free catalyst for scalable hydrogen production and electrochemical applications, aligning with sustainable and clean energy goals.
Anahtar Kelimeler
Hydrogen generation | Low activation energy | NaBH4 methanolysis | Renewable energy | Sustainable catalysis | Zwitterionic polymer catalyst
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Catalysis Letters
Dergi ISSN 1011-372X Wos Dergi Scopus Dergi
Dergi Grubu Q3
Makale Dili İngilizce
Basım Tarihi 12-2025
Cilt No 155
Sayı 12
Doi Numarası 10.1007/s10562-025-05207-1
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Catalytic Application of a Zwitterionic Polymeric Network for Hydrogen Generation via Sodium Borohydride Methanolysis

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