Akademik Veri Yönetim Sistemi
5thInternational Congress of Engineering and Natural Sciences (ICENSS 2025), Ankara, Türkiye, 24 - 25 Mayıs 2025, ss.230-237, (Tam Metin Bildiri)
Hydrogen maintains its importance among alternative energy sources because it does not produce harmful combustion products such as COx and SOx, has relatively high fuel efficiency, and is not a local resource. The most effective solution to the storage problem regarding the use of hydrogen as fuel is to transport hydrogen via solid sources such as hydride compounds. In this study, demineralized wheat straw was activated with phosphoric acid at 800°C under a nitrogen atmosphere to produce activated carbon. As evidenced by the SEM images and N2 adsorption/desorption isotherms, our study successfully preserved the macro and meso porous structure, which plays a crucial role in facilitating the access of guest molecules to micropores. The QSDFT, BJH, and BET methods were used to determine the porosity characteristic. Pore size distribution analysis showed that the activated carbon was composed of meso and macro porosity dominantly. According to QSDFT method, the surface area and pore volume of the produced activated carbon were calculated by 689.61 m2/g and 0.824 cm3/g, respectively. In the XRD spectrum of the prepared catalyst, the characteristic bands belonging to Pd(0) were observed. The activated carbon-supported catalyst demonstrated a high efficiency, with dehydrogenation of ammonium borane achieved at approximately 95% in 38 min at 303 K. In addition, the experiments conducted at 313 K and 323 K showed that increasing temperature increases the dehydrogenation yield of ammonia borane. TUBITAK 2209-A University Students Research Projects Support supported this study