Aktif Co-Ti (II) -B alaşım katalizörlerinin hidrojen üretiminde NaBH4 hidroliz reaksiyonu ve çevresel etkiler için kinetik özelliklerin analizi

Year 2019, Volume: 34 Issue: 3, 1585 - 1594, 29.05.2019

Oğuz Kaan Özdemir

https://doi.org/10.17341/gazimmfd.570889

Cited By: 2

Abstract

Aktif
olmayan soy metallerin ilavesi, katalizörün katalitik performansını etkiler. Bu
çalışmada, sodyum borohidrit (NaBH₄) 'in katalitik hidroliziyle
hidrojen üretimi için TiCl₂ metal tuzundan yeni ve verimli bir üçlü
Kobalt-Titanyum (II) -Borid (Co-Ti(II)-B) katalizörleri hazırlanmıştır.
Co-Ti(II)-B katalizörü yardımıyla, hidrojen üretim oranı, farklı titanyum
konsantrasyonu, çözelti sıcaklığı, NaBH₄ konsantrasyonu ve NaOH (baz
dengeleyici) konsantrasyonunun bir fonksiyonu olarak ölçülmüştür. Katalizörün
aktivitesi, termodinamik bakış açılarından analiz edilmiş ve Co-B katalizörü
ile karşılaştırılmıştır. Yüksek katalitik verimliliğe ek olarak, katalizör
ciddi koşullarda yüksek kararlılık ve aktivasyon kaybına karşı yüksek tolerans
gibi önemli özellikleri içermelidir. En yüksek hidrojen üretim oranı, %5 ağ.
Ti/(Ti + Co) molar oranı ile elde edilmiş ve bu katalizör için, optimum yakıt
konsantrasyonu, ağırlıkça %7,5 NaOH ile %7,5 NaBH₄ olarak
tanımlanmıştır.

Keywords

Kobalt titanyum (II) borit, sodyum borohidrid, hidrojen üretimi

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