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

Yıl 2022, , 1657 - 1664, 01.09.2022

Tulin Avcı Hansu , Saliha Özarslan

https://doi.org/10.21597/jist.1093610

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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