Effective TiO2 supported Cu-Complex catalyst in NaBH4 hydrolysis reaction to hydrogen generation

Kılınç, Dilek; Şahi̇n, Ömer

doi:10.1016/j.ijhydene.2018.12.225

Cited by 48 publications

(18 citation statements)

References 49 publications

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“…SB hydrolysis reaction is irreversible and generates four moles of H 2 . Recently, Cu@TiO 2 nanostructures have demonstrated excellent catalytic performance towards H 2 generation from hydrogen storage materials [ 49 , 50 ]. Here, first, a controlled experiment was performed to demonstrate that at 30 ± 1 °C and 55 ± 1 °C, bare TiO 2 had no catalytic activity in the hydrolysis process.…”

Section: Resultsmentioning

confidence: 99%

Hydrothermal-Assisted Synthesis of Copper Nanoparticles-Decorated Titania Nanofibers for Methylene Blue Photodegradation and Catalyst for Sodium Borohydride Dehydrogenation

Abutaleb

2022

Polymers

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Simple and inexpensive electrospinning and hydrothermal techniques were used to synthesize titania nanofibers (TiO2 NFs) (composite NFs) decorated with copper nanoparticle (Cu NPs). The fabricated composite NFs have been tested as a photocatalytic material to degrade methylene blue (MB) as a model dye under visible light. The introduced composite NFs have shown good photocatalytic activity compared with pristine TiO2 NFs; 100% and 50% of dye were degraded in 120 min for composite NFs and pristine TiO2 NFs, respectively. Furthermore, composite NFs demonstrated good stability for four cycles. In addition, the fabricated Cu-TiO2 NFs have shown good photocatalytic activity for the production of H2 from sodium borohydride.

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Section: Resultsmentioning

confidence: 99%

Hydrothermal-Assisted Synthesis of Copper Nanoparticles-Decorated Titania Nanofibers for Methylene Blue Photodegradation and Catalyst for Sodium Borohydride Dehydrogenation

Abutaleb

2022

Polymers

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“…Catalysts prepared at a current density of 160 mA/cm 2 and 90 minutes showed the best results, although the difference with a current density of 80 and 240 mA/cm 2 was not significant. At the accurate current density, the formation of Ni-Cu-B catalyst with hydroxyapatite as catalyst support becomes effective as catalyst for the hydrogen release reaction 11,13) . If the current density is too high, the hydroxyapatite formation reaction is too fast and forms large particles so that the catalyst is not properly protected and causes the catalyst to be contaminated by hydrogen that is formed 15 .…”

Section: Figmentioning

confidence: 99%

“…The important thing in the storage of hydrogen as NaBH4 is the release of hydrogen from NaBH4 11) . A hydrogen release catalyst from NaBH4 has been developed 12,13,14,15) .…”

Section: Introductionmentioning

confidence: 99%

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The Release of Hydrogen from NaBH_4 with Ni-Cu-B/Hydroxyapatite as The Catalyst

Nur¹,

Jumari²,

Dyartanti³

et al. 2022

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The environmentally friendly combustion of hydrogen makes hydrogen an ideal fuel. Research on the ideal hydrogen storage is still being carried out. one candidate for hydrogen storage is NaBH4. NaBH4 is hydrolyzed to release hydrogen. This work concerns the hydrolysis reaction of NaBH4 to release hydrogen with a catalyst Ni-Cu-B deposited on hydroxyapatite. The research went through 2 stages, namely catalyst synthesis and NaBH4 hydrolysis reaction. The catalyst synthesis was carried out electrochemically using a 2-compartment electrochemical cell at the certain current density and reaction time. The hydrolysis reaction was observed in a batch reactor at a constant temperature. The results showed that the most significant hydrogen release at room temperature occurred with a catalyst made at 160 mA/cm 2 for 90 minutes. The hydrogen release rate ranged from 435 to 1600 mL H2/g catalyst/min. The resulting equation for the reaction rate constant as a function of temperature is k = 3.567 x 10 10 exp(8624.245/T).

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“…Asil olmayan metal katalizörlerden çok daha düşük maliyetli ve daha zengin kaynakları olan Co-B, ilk olarak Schlesinger ve arkadaşlarının NaBH4 hidrolizine yönelik bir katalizör olarak rapor edilmiştir. Co-B katalizörlerinin NaBH4 hidrolizine karşı hazırlama ve katalitik aktivitelerini incelemek için çok sayıda çalışma yapılmıştır [8,9]. Bununla birlikte, Co-B numunelerinin redüksiyon reaksiyonu güçlü ve egzotermik olduğundan, genellikle düşük yüzey alanı ve geniş ölçüde dağılmış partikül büyüklüğü nedeniyle kristalleşmeye karşı zayıf termal kararlılık göstermektedir.…”

Section: Introductionunclassified

Co-La-B Katalizörünün Sentezlenmesi ve Yakıt Pilinde Kullanılması

Horoz

Ekinci

Şahi̇n

2020

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

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ÖzBu çalışmada, bir hidrojen jeneratörü tasarlamak için Co-La-B katalizörü kullanılarak katalizör miktarı, NaOH konsantrasyonu, NaBH4 konsantrasyonu ve çözelti sıcaklığı gibi parametrelerin hidrojen üretim hızı üzerindeki etkisi incelenmiştir. Hidrojen üretim reaksiyonu için aktivasyon enerjisi 40,3 kJ mol -1 olarak hesaplanmıştır. Co-La-B katalizörünün varlığında elde edilen hidrojen üretim sistemi kullanarak, polimer elektrolit membran yakıt hücresi (PEMFC) yığını çalıştırılmıştır. Yerinde üretilen hidrojen, bir PEM yakıt pilinde kullanılarak o yakıt piline ait verim hesaplanmıştır. Üretilen hidrojenin zamanla akım ve gerilim üzerindeki değişimleri incelenmiştir. Yerinde üretilen hidrojenin tek hücreli PEM yakıt pilinde kullanılması ile akım ve gerilim değerlerinden, 0,65 W'lık bir güç değeri hesaplanmıştır. PEM yakıt pili uygulamasında güce ve ideal voltaja göre ortalama verim değerleri sırasıyla %62 ve %79 olarak bulunmuştur. Elde edilen sonuçlardan, Co-La-B katalizörünün PEM yakıt pili uygulamaları için ideal bir katalizör olduğu söylenebilir.

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Effective TiO2 supported Cu-Complex catalyst in NaBH4 hydrolysis reaction to hydrogen generation

Cited by 48 publications

References 49 publications

Hydrothermal-Assisted Synthesis of Copper Nanoparticles-Decorated Titania Nanofibers for Methylene Blue Photodegradation and Catalyst for Sodium Borohydride Dehydrogenation

Hydrothermal-Assisted Synthesis of Copper Nanoparticles-Decorated Titania Nanofibers for Methylene Blue Photodegradation and Catalyst for Sodium Borohydride Dehydrogenation

The Release of Hydrogen from NaBH_4 with Ni-Cu-B/Hydroxyapatite as The Catalyst

Co-La-B Katalizörünün Sentezlenmesi ve Yakıt Pilinde Kullanılması

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