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

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