TY  - JOUR
T1  - Investigation of Sodium Borohydride Synthesis from Anhydrous Borax: Impact of Stoichiometry and Alternative Reducing Agents
TT  - Susuz Borakstan Sodyum Borhidrür Sentezi: Stokiyometri ve Alternatif İndirgeyici Malzemelerin Etkisi
AU  - Yaşar, Muzaffer
AU  - Yılmaz, Kadir
PY  - 2024
DA  - December
Y2  - 2024
JF  - BİLİM-TEKNOLOJİ-YENİLİK EKOSİSTEMİ DERGİSİ
JO  - BİTYED
PB  - Çanakkale Onsekiz Mart Üniversitesi
WT  - DergiPark
SN  - 2757-6140
SP  - 115
EP  - 122
VL  - 5
IS  - 2
LA  - en
AB  - The production of sodium borohydride from anhydrous borax using aluminum and sodium hydroxide as reactants was investigated in a bomb-type batch reactor under hydrogen atmosphere. The study evaluated the effects of stoichiometric ratios and the addition of calcium carbide on yield and product composition. Experiments without calcium carbide, employing 100% molar excess of aluminum and sodium hydroxide, increased the yield from 11.31% to 13.28%. However, incorporating calcium carbide redirected the reaction mechanism, leading to the formation of complex phase structures. Structural characterization using FT-IR and XRD confirmed the consistency of products from Experiments 1 and 2 with reference NaBH₄. In contrast, products from Experiments 3, 4 and 5 showed significant deviations, with no NaBH₄-specific peaks observed. These findings underscore the importance of stoichiometric optimization and particle size reduction (
KW  - Sodium borohydride
KW  - anhydrous borax
KW  - calcium carbide
N2  - Susuz borakstan, alüminyum ve sodyum hidroksit kullanılarak sodyum borhidrür üretimi, hidrojen atmosferinde çalışan bomba tipi kesikli bir reaktörde incelenmiştir. Çalışmada, stokiyometrik oranların ve kalsiyum karbür ilavesinin verim ve ürün kompozisyonu üzerindeki etkileri değerlendirilmiştir. Kalsiyum karbür kullanılmayan deneylerde, molce %100 fazla alüminyum ve sodyum hidroksit kullanımı reaksiyon verimini %11.31’ den %13.28’ e çıkarmıştır. Ancak, kalsiyum karbür ilavesi reaksiyon mekanizmasını değiştirerek, kompleks faz yapılarının oluşumuna yol açmıştır. FT-IR ve XRD ile yapılan yapısal karakterizasyon, 1 ve 2 numaralı deneylerde elde edilen ürünlerin referans NaBH₄ ile uyumlu olduğunu doğrulamıştır. Buna karşın, 3, 4 ve 5 numaralı deneylerin ürünleri, NaBH₄'e özgü piklerin gözlemlenmediği önemli farklılıklar göstermiştir. Bu bulgular, reaksiyon verimliliğinin artırılmasında stokiyometrik optimizasyonun ve tanecik boyutunun küçültülmesinin (
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UR  - https://dergipark.org.tr/tr/pub/bityed/issue//1702834
L1  - https://dergipark.org.tr/tr/download/article-file/4885970
ER  -