Effect Of NaoH In Hydrogen Production From NaBH4 By Using Co-B-F And Co-B-P Catalysts

Mehmet Sait İZGİ, Ömer ÖDEMİŞ, Ömer ŞAHİN, Cafer SAKA

Öz


In this study, Co-B-F and Co-B-P catalysts were synthesized in order to produce hydrogen from sodium boron hydride hydrolysis. Sodium hydroxide concentration in hydrogen production from sodium boron hydride is immensely important to stabilize the reaction. In the case of over use of sodium hydroxide, catalytic activity of the catalyst will decrease, On the other hand, In the case of under-use or without any usage of the catalyst, sodium boron hydride degradation will occur. For these reasons, optimum sodium hydroxide concentrations were determined in the case of synthesized Co-B-F and Co-B-P catalysts usage in sodium boron hydride hydrolysis. In the presence of different sodium hydroxide concentrations, reaction rates and reaction rate constants were examined separately which hydrolysis of sodium borohydride with sodium hydroxide concentration was determined to be effective and how important the hydrogen production. Co-BF in the presence of catalyst for hydrogen production rate of 2.5% concentrations of NaOH in 2400 ml / dk.catalyst, Co-BP for the catalysts was 1605 ml / dk.catalyst was determined.

Anahtar Kelimeler


Sodium Borohydride, Hydrogen, Catalyst, Sodium Hydroxide, Cobalt

Tam Metin:

PDF

Referanslar


Amendola S.C., Onnerud P., Kelly M.T., Petillo P.J., Sharp-Goldman S.L., Binder M. J. 2000. An ultrasafe hydrogen generator: aqueous, alkaline borohydride solutions and Ru catalyst. Power Source 85 -186.

Fernandes R, Patel N, Miotello A. 2009. Hydrogen generation by hydrolysis of alkaline NaBH4 solution with Cr-promoted Co-B amorphous catalyst. Appl Catal B Environ. 92:68-74.

Ingersoll, J. C., Mani, N., Thenmozhiyal, J. C. and Muthaiah A., 2007, Catalytic hydrolysis of sodium borohydride by a novel nickel-cobalt-boride catalyst, Journal of Power Sources. 173, 450-457.

İzgi M.S., Şahin Ö. Saka C. 2015. Hydrogen production from NaBH4 using Co–Cu–B catalysts prepared in methanol: Effect of plasma treatment. Int. J. of Hydrogen Energy. doi:10.1016/j.ijhydene.2015.11.004

Patel N, Fernandes R, Miotello A. 2010. Promoting effect of transition metal-doped Co-B alloy catalysts for hydrogen production by hydrolysis of alkaline NaBH4 solution. J Catal 271:315-24.

Sahin O, Kaya M, Izgi M. S, Saka C. 2015. The effect of microwave irradiation on a Co-b-based catalyst for hydrogen generation by hydrolysis of NaBH4 solution. Energy Sources Part A 37:462-7.

Schlesinger H.I., Herbert C.B., Finholt A.E., Gilbreath J.R., Hoekstra H.R., Hyde E.K., 1953. Sodium borohydride, its hydrolysis and its use as a reducing agent and in the generation of hydrogen, Journal of the American Chemical Society, 75 (19, pp 215- 219)

Suda X. S, Y.- Sun M. Liu B.-H, Zhou, Y, Morimitsu,m S. Arai, K. Tsukamoto, N. Uchida, M. Candra, Li Y. Z.-P. 2001 Catalytic generation of hydrogen by applying fluorinated-metal hydrides as catalysts Appl. Phys. A 72, 209–212




DOI: https://doi.org/10.15317/Scitech.2016116095

Madde Ölçümleri

Ölçüm Çağırılıyor ...

Metrics powered by PLOS ALM

Refback'ler

  • Şu halde refbacks yoktur.


Telif Hakkı (c) 2016 Selcuk University Journal of Engineering, Science and Technology

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Tarayan Veri Tabanları

   ResearchBib 中国知网BASE Logo googleDirectory of Research Journals Indexing LogoOnline Access to Research in the EnvironmentDTUbroadcastlogo PBN - BETA versionjournal tocs uk ile ilgili görsel sonucuFind in a library with WorldCatDiscovery: Library search made simple. Return to JournalSeek Homejatstech ile ilgili görsel sonucuExLibris header imageStanford University Libraries