Araştırma Makalesi
Aktif Co-Ti (II) -B alaşım katalizörlerinin hidrojen üretiminde NaBH4 hidroliz reaksiyonu ve çevresel etkiler için kinetik özelliklerin analizi
Öz
Aktif
olmayan soy metallerin ilavesi, katalizörün katalitik performansını etkiler. Bu
çalışmada, sodyum borohidrit (NaBH4) 'in katalitik hidroliziyle
hidrojen üretimi için TiCl2 metal tuzundan yeni ve verimli bir üçlü
Kobalt-Titanyum (II) -Borid (Co-Ti(II)-B) katalizörleri hazırlanmıştır.
Co-Ti(II)-B katalizörü yardımıyla, hidrojen üretim oranı, farklı titanyum
konsantrasyonu, çözelti sıcaklığı, NaBH4 konsantrasyonu ve NaOH (baz
dengeleyici) konsantrasyonunun bir fonksiyonu olarak ölçülmüştür. Katalizörün
aktivitesi, termodinamik bakış açılarından analiz edilmiş ve Co-B katalizörü
ile karşılaştırılmıştır. Yüksek katalitik verimliliğe ek olarak, katalizör
ciddi koşullarda yüksek kararlılık ve aktivasyon kaybına karşı yüksek tolerans
gibi önemli özellikleri içermelidir. En yüksek hidrojen üretim oranı, %5 ağ.
Ti/(Ti + Co) molar oranı ile elde edilmiş ve bu katalizör için, optimum yakıt
konsantrasyonu, ağırlıkça %7,5 NaOH ile %7,5 NaBH4 olarak
tanımlanmıştır.
Anahtar Kelimeler
Kobalt titanyum (II) borit sodyum borohidrid hidrojen üretimi
Kaynakça
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- 3. Zhou, L. Progress and problems in hydrogen storage methods. Renewable and Sustainable Energy Reviews, 9, 395–408, 2005.
- 4. Patel, N., Fernandes, R., Bazzanella, N., Miotello,A. Enhanced hydrogen production by hydrolysis of NaBH4 using “Co-B nanoparticles supported on Carbon film” catalyst synthesized by pulsed laser deposition. Catalysis Today, 170, 20–26, 2011.
- 5. Amendola, S.C., Sharp-Goldman, S.L., Janjua., M.S. A safe, portable, hydrogen gas generator using aqueous borohydride solution and Ru catalyst. International Journal of Hydrogen Energy, 25, 969-975, 2000.
- 6. Schlesinger HI, Brown HC, Finholt AE, et al. Sodium borohydride, its hydrolysis and use as a reducing agent and in the generation of hydrogen. J American Chemical Society, 75 (1), (1953), 215-219.
- 7. Brown, H.C., Brown,C.A. New highly active metal catalysts for the hydrolysis of borohydride, J. American Chemical Society, 84, 1493, (1962).
- 8. Patel, N., Fernandes, R., Miotello, A. Hydrogen generation by hydrolysis of NaBH4 with efficient Co–P–B catalyst: A kinetic study. J. Power Sources, 188, 411–420, 2009.
- 9. Li, H., Wang, W., Li,H., Jing-Fa, Deng. Crystallization Deactivation of Ni–P/SiO2 Amorphous Catalyst and the Stabilizing Effect of Silica Support on the Ni–P Amorphous Structure. Journal of Catalysis, 194, 211–221, 2000.
- 10. Bai, Y., Wu, C., Wu, Yi.B. Carbon-supported platinum catalysts for on-site hydrogen generation from NaBH4 solution. Materials Letter, 60, 2236–2239, 2006.
- 11. Ozdemir, O.K., Hasimoglu, A., Ahsen, A.S. Synthesis of graphene-based Co-B catalyst via simultaneous chemical reduction for hydrolysis of sodium borohydride. J. Renewable and Sustaınable Energy, 5, 063135, 2013.
- 12. Chamoun, R., Demirci,U.B., Zaatar,Y., Khoury,A., Miele,P. Co-αAl2O3-Cu as shaped catalyst in NaBH4 hydrolysis. International Journal of Hydrogen Energy, 35, 6583-6591, 2010.
- 13. Crisafulli, C., Scire, S, Salanitri, M., Zito, R., Calamia, S. Hydrogen production through NaBH4 hydrolysis over supported Ru catalysts: An insight on the effect of the support and the ruthenium precursor, International Journal of Hydrogen Energy, 36, 3817-3826, 2011.
- 14. Dai, H.B., Liang,Y., Wang,P., Yao,X.D., Rufford,T., Lu,M., Cheng, H.M. High-performance cobalt–tungsten–boron catalyst supported on Ni foam for hydrogen generation from alkaline sodium borohydride solution, International Journal of Hydrogen Energy, 33, 4405–4412, 2008.
- 15. Ding, X.L., Yuan, X., Jia, C., Ma, Z.F. Hydrogen generation from catalytic hydrolysis of sodium borohydride solution using Cobalt-Copper-Boride (Co-Cu-B) catalysts, International Journal of Hydrogen Energy, 35, 11077-11084, 2010.
- 16. Yuan, X., Jia, C., Ding, X.L., Ma, Z.F., Effects of heat-treatment temperature on properties of Cobalt-Manganese-Boride as efficient catalyst toward hydrolysis of alkaline sodium borohydride solution, International Journal of Hydrogen Energy, 37, 995-1001, 2012.
- 17. Nie, M., Zou, Y.C., Huang,Y.M. Ni-Fe-B catalysts for NaBH4 hydrolysis, International Journal of Hydrogen Energy, 37, 1568-1576, 2012.
- 18. Zhuang, D.W., Zhang, J.J., Dai, H.B., Wang, P. Hydrogen generation from hydrolysis of solid sodium borohydride promoted by a cobalt-molybdenum-boron catalyst and aluminum powder, International Journal of Hydrogen Energy, 38, 10845-10850, 2013.
- 19. Xiang, C., Jiang, D., She, Z., Zou,Y., Chu,H., Qiu,S., Zhang,H., Xu,F., Tang,C., Sun,L. Hydrogen generation by hydrolysis of alkaline sodium borohydride using a cobalt-zinc-boron/graphenen an ocomposite treated with sodium hydroxide. International Journal of Hydrogen Energy, 40, 4111-4118, 2015.
- 20. Patel, N., Fernandes, R., Miotello, A., Promoting effect of transition metal-doped Co–B alloy catalysts for hydrogen production by hydrolysis of alkaline NaBH4 solution, Journal of Catalysis, 271, 315–324, 2010.
- 21. Fernandes, R., Patel, N., Miotello, A. Hydrogen generation by hydrolysis of alkaline NaBH4 solution with Cr-promoted Co-B amorphous catalyst, Appl Catal B:Environ. 92, 68-74, 2009.
- 22. Aydin, M., Hasimoglu, A., Ozdemir,O.K. Kinetic properties of Cobalt–Titanium–Boride (Co–Ti–B) catalysts for sodium borohydride hydrolysis reaction, International Journal of Hydrogen Energy, 1, 239-248, 2016.
- 23. Perkin Elmer. TGA-& Thermogravimetric Analyzer-User’s Manual, Perkin Elmer, Inc, 2017.
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- 26. Xiang, C., Jiang, D., She, Z., Hydrogen generation by hydrolysis of alkaline sodium borohydride using a cobalt-zinc-boron/graphene nanocomposites treated with sodium hydroxide. Int J. Hydrogen Energy, 40 (11), 4111-4118, 2015.
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Toplam 27 adet kaynakça vardır.
Ayrıntılar
| Birincil Dil | Türkçe |
|---|---|
| Konular | Mühendislik |
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 29 Mayıs 2019 |
| Gönderilme Tarihi | 24 Mayıs 2017 |
| Kabul Tarihi | 5 Kasım 2018 |
| Yayımlandığı Sayı | Yıl 2019 Cilt: 34 Sayı: 3 |