Katalizör Olarak PtAu/CNT Nanokompozit Kullanılarak Sodyum Borhidrür ve Potasyum Borhidrürün Hidrolizinden Hidrojen Üretimi

Öz

Yenilenebilir enerji tükenme tehlikesi ile karşı karşıya olan fosil kaynakların yerine kullanılabilecek güçlü bir adaydır. Bu bağlamda yenilenebilir enerji ve temiz enerji kaynağı olarak hidrojen dikkat çekmektedir. Bu çalışmada hidrojen deposu olan metal hidritlerden sodyum bor hidrür (NaBH4) ve potasyum bor hidrürün (KBH4) hidrolizi sonucu hidrojen üretimi incelendi. Hidroliz reaksiyonlarında kullanılacak olan monometalik ve bimetalik katalizörler sentezlendi. Sentezlenen bu katalizörlerin yüzey karakterizasyonu X-ışını kırınımı spektroskopisi (XRD) ve yüzey alanı analizi (BET) analizleri kullanılarak yapıldı. Yapılan hidroliz deneyleri sonucunda NaBH4 ortamında %10 Pt80Au20/CNT katalizörü KBH4 ortamında %10 Pt60Au40/CNT katalizörü monometalik %10 Pt/CNT katalizörüne göre daha iyi katalitik aktivite göstermiştir

Anahtar Kelimeler

• Hidrojen
• sodyum borhidrür
• potasyum borhidrür
• katalizör

Hydrogen Production from Hydrolysis of Sodium Borohydride and Potassium Borohydride Using PtAu/CNT Nanocomposite as Catalyst

Öz

Renewable energy is a strong candidate that can be used instead of fossil resources that are in danger of extinction. In this context, hydrogen draws attention as a renewable energy and clean energy source. In this study, hydrogen production as a result of hydrolysis of sodium borohydride (NaBH4) and potassium borohydride (KBH4) from metal hydrides, which are hydrogen storage, was investigated. Monometallic and bimetallic catalysts to be used in hydrolysis reactions were synthesized. Surface characterization of these synthesized catalysts was performed using X-ray diffraction spectroscopy (XRD) and surface area analysis (BET) analyses. As a result of hydrolysis experiments, 10% Pt80Au20/CNT catalyst in NaBH4 environment showed better catalytic activity than 10% Pt60Au40/CNT catalyst in KBH4 environment compared to monometallic 10% Pt/CNT catalyst.

Anahtar Kelimeler

• Hydrogen
• sodium borohydride
• potassium borohydride
• catayst

Kaynakça

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