Effect of Co-B Catalyst Synthesized in Methanol on the Hydrolysis of Sodium Borohydride

Yıl 2017, Cilt: 7 Sayı: 4, 151 - 160, 31.12.2017

Mehmet Sait İzgi , Ömer Şahin Erhan Onat Sabit Horoz

Öz

In this study, the effect of parameters such as treatment time, temperature, amount of catalyst and

the NaBH4 concentration were investigated on the catalytic activity of Co-B catalyst synthesized in methanol and

the optimum conditions were determined. The maximum hydrogen generation rate was found as 2200 mLH2/

min.g.catalyst for Co-B catalyst synthesized in methanol while 600 mLH2/min.g.catalyst was found for Co-B

catalyst synthesized in water. The activation energy was found as 34.694 kJ /mol for Co- B catalyst prepared in

methanol. Consequently, our results suggest that the cold plasma treatment with different conditions can be used as

a promising technique to enhance the catalytic activity of Co-B catalyst prepared in the methanol.

Anahtar Kelimeler

Co-B catalyst, cold plasma treatment, methanol, sodium borohydride

Metanolde Sentezlenen Co-B Katalizörün Sodyum Hidrolizi Üzerine Etkisi

Öz

Bu çalışmada, metanol içinde sentezlenen Co-B katalizörünün etkinliğini arttırmak için alternatif bir yöntem

olarak soğuk bir plazma yöntemi seçilmiştir. İşlem süresi, sıcaklık, katalizör miktarı ve NaBH4 konsantrasyonları

gibi parametrelerin Co-B katalizörün katalitik aktivitesi üzerindeki etkisi araştırılmış ve optimum koşullar

belirlenmiştir. Maksimum hidrojen üretim oranı, metanolde sentezlenen Co-B katalizörü için 2200 mLH2/min.g.

katalizör olarak bulunurken, suda sentezlenen Co-B katalizörü için 600 mLH2/min.g. katalizör olarak bulunmuştur.

Metanolde hazırlanan Co-B katalizörü için aktivasyon enerjisi 34.694 kJ/mol olarak belirlenmiştir. Sonuç olarak,

sonuçlarımız, farklı koşullardaki soğuk plazma işleminin, metanolde hazırlanan Co-B katalizörünün katalitik

aktivitesini arttırmak için umut verici bir teknik olarak kullanılabileceğini göstermektedir.

Anahtar Kelimeler

Co-B katalizörü, soğuk plazma işlemi, methanol, sodyum borhidrür

Kaynakça

• Fakeeha AH, Ibrahim AA, Khan WU, Abasaeed AE, Al-Fatesh AS. 2016. Hydrogen production by catalytic methane decomposition over Ni, Co, and Ni-Co/Al2O3 catalyst. Petroleum Science and Technology. 34: 1617-1623.
• Balat M. 2008. Possible Methods for Hydrogen Production. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. 31: 39-50.
• Coşkuner B, Kanturk, AF, Pişkin S. 2014. Sonochemical Approach to Synthesis of Co-B Catalysts and Hydrolysis of Alkaline NaBH4 Solutions. Journal of Chemistry. 185957.
• Cho KW, Kwon HS. 2007. Effects of electrodeposited Co and CoeP catalysts on the hydrogen generation properties from hydrolysis of alkaline sodium borohydride solution. Catal. Today. 120: 298-304
• Fakeeha, AH, Ibrahim AA, Khan WU, Abasaeed AE, Al-Fatesh AS, 2016. Hydrogen production by catalytic methane decomposition over Ni, Co, and Ni-Co/Al2O3 catalyst. Petroleum Science and Technology. 34:1617-1623.
• 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.
• Gupta SS, Bandyopadhya NR, Datta J. 2005. Carbon-Supported Platinum Catalysts for Direct Alcohol Fuel Cell Anode. Materials and Manufacturing Processes. 21: 703-706.
• Ingersoll JC, Mani N, Thenmozhiyal JC, Muthaiah A. 2007. Catalytic hydrolysis of sodium borohydride by a novel nickel-cobalt-boride catalyst. Journal of Power Sources. 173: 450-457.
• Ismaev TI, Safiullin RA, Strelnik ID, Musina EI, Kadirov MK, Karasik AA, Sinyashin OG. 2016. Nickel-organic complexes as catalyst in PEM fuel cells. Phosphorus, Sulfur, and Silicon and the Related Elements. 191: 1654-1655.
• İzgi MS, 2015. Effect of microwave irritated Co-B-Cr catalyst on the hydrolysis of sodium borohydride. Energy Sources Part A Recovery Utilization and Environmental Effects. 0562; 1-16.
• İzgi MS, Odemis O, Sahin O. 2016. Co-B-F ve Co-B-P Katalizörleri Kullanilarak NaBH4’den Hidrojen Üretimine NaOH’in Etkisi. SelçukÜniversitesiMühendislik, BilimveTeknoloji Dergisi. 4: 55-64.
• İzgi MS, Şahin Ö, Ödemiş Ö, Saka C. 2017. Microwave treatment and fluorine addition on Co-B catalyst to improve the hydrogen production rate. Materials and Manufacturing Processes. 1303159: 1-6.
• İzgi MS, 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. 41: 1600-1608.
• Kim JH, Lee H, Han SC, Kim HS, Song MS, Lee JY. 2004. Production of hydrogen from sodium borohydride in alkaline solution: development of catalyst with high performance. International Journal of Hydrogen Energy. 29: 263-267.
• Ocon JD, Tuan TN, Yi Y, Leon RL, Lee JK, Lee J. 2013. Ultrafast and stable hydrogen generation from sodium borohydride in methanol and water over Fe–B nanoparticles. Journal of Power Sources. 243: 444-450.
• Liang J, Li Y, Huang Y, Yang Y, Tang H, Wei Z, Shen PK. 2008. Sodium borohydride hydrolysis on highly efficient Co–B/Pd catalysts. International Journal of Hydrogen Energy. 33: 4048-4054.
• Niwa K, Tamura K, Anandan S, Ikuma Y. 2012. Hydrogen production using mesoporous titanium dioxide. Energy Materials: Materials Science and Engineering for Energy Systems. 7: 34-38.
• Ozdemir, OK, Hasimoglu A, Ahsen AS. 2013. Synthesis of graphene-based Co-B catalyst via simultaneous chemical reduction for hydrolysis of sodium borohydride. Journal of Renewable and Sustainable Energy. 5: 063135.
• Krishnan P, Advani SG, Prasad AK. 2009. Thin-film CoB catalyst templates for the hydrolysis of NaBH4 solution for hydrogen generation. Applied Catalysis B: Environmental,. 86:137-144.
• Peng S, Fan X, Wu Y, Zhang J. 2013. Kinetic Study of Hydrogen Generation from the Hydrolysis of Alkaline NaBH4 over Ru/MMT: an Insight on the Effect of Catalyst Amount. Integrated Ferroelectrics. 147: 159-165.
• Benitez P, Delgado A, Farrera JA, Ribó JM. 1997. Preparation of ω-Hydroxy Acids by Reduction of α,ω-Methylene Diesters with NaBH4. Synthetic Communications. 27: 1697-1702.
• Qiming L, Kim H. 2012. Hydrogen production from NaBH4 hydrolysis via Co-ZIF-9 catalyst. Fuel Processing Technology. 100: 43-48.
• Isha R, Williams PT. 2012. Hydrogen production from catalytic steam reforming of methane: influence of catalyst composition. Journal of the Energy Institute. 85: 29-37.
• Fernandes R,. Pinto AMFR,. Rangel CM. 2009. Hydrogen production from sodium borohydride in methanol–water mixtures. International journal of hydrogen energy. 35: 9862-9868.
• Sahin O, Karakas DE, Kaya M, Saka C. 2016. The effects of plasma treatment on electrochemical activity of Co–B–P catalyst for hydrogen production by hydrolysis of NaBH4. Journal of the Energy Institute. 90: 466-475.
• Şahin Ö, Kaya M İzgi MS, Saka C. 2015. The effect of microwave irradiation on aCo-B-based catalyst for hydrogen generation by hydrolysis of NaBH4 solution. Energy Sources, Part A. 37: 462-467.
• Saka C, Sahin O, Demir H, Karabulut A, Sarıkaya A. 2015. Hydrogen generation from sodium borohydride hydrolysis with a CueCo-based catalyst: a kinetic study. Energy Sources Part A. 37: 956- 964.
• Schlesigner IH, BrownC, Finholt AE, Gilbreath IR, Hoekstra HR, Hyde EK. 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: 215–219.