Plazma Ortamında Aktifleştirilen Bimetalik Nano-katalizör Varlığında Sodyum Borhidrürün Hidrolizinin İncelenmesi

Year 2021, Issue: 31, 487 - 492, 31.12.2021

Tulin Avcı Hansu , Saliha Özarslan

https://doi.org/10.31590/ejosat.1008996

Abstract

Bu çalışmada CoBi bimetalik nano katalizörüne plazma etkisi ile hidroliz reaksiyonundaki aktivitesi araştırılmıştır. Hidrojen kaynağı olarak sodyum borhidrür kullanılmıştır. Sentezlenen katalizörün yüzeyi geçirmeli elektron mikroskopisi (TEM) ve yüzey boyut dağılımı (BET) ile analiz edilmiştir. Plazma etkisini incelemek için katalizör plazma gücü (%60, %80 ve %100), plazma süresi (10, 15 ve 20 dakika) ve plazma ortamına verilen inert gaz (CO2, N2 ve Ar) gibi çeşitli parametreler uygulanmıştır. Bu uygulanan parametreler sonucu oluşan katalizör, 30 oC, 10 ml su, %1 NaBH4, %5 NaOH ve 25 mg katalizör varlığında hidroliz reaksiyonuna ilave edilmiştir. Hidroliz reaksiyonunu tamamlama süreleri referans alınarak CoBi katalizörünü aktifleştirmek için uygun koşulların CO2 gazı ortamında %80 plazma gücü ile 15 dakika plazma uygulanması olduğu belirlenmiştir.

Keywords

Plazma etkisi, Nano-katalizör, Hidrojen üretimi, Sodyum borhidrür

Study of the Activity of a Novel Green Catalyst Used in the Production of Hydrogen from Methanolysis of Sodium Borohydride

Abstract

In this study, the activity of CoBi bimetallic nanocatalyst in hydrolysis reaction with plasma effect was investigated. Sodium borohydride was used as the hydrogen source. The surface of the synthesized catalyst was analyzed by transmission electron microscopy (TEM) and surface size distribution (BET). Various parameters such as catalyst plasma power (60%, 80% and 100%), plasma time (10, 15 and 20 min) and inert gas (CO2, N2 and Ar) given to the plasma medium were applied to examine the plasma effect. The catalyst formed as a result of these applied parameters was added to the hydrolysis reaction in the presence of 30 oC, 10 ml of water, 1% NaBH4, 5% NaOH and 25 mg of catalyst. Based on the completion times of the hydrolysis reaction, it was determined that the appropriate conditions for activating the CoBi catalyst were to apply plasma for 15 minutes with 80% plasma power in the CO2 gas environment

Keywords

Plazma etkisi, Nano-katalizör, Hidrojen üretimi

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