j. inst. sci. and tech. Journal of the Institute of Science and Technology 2536-4618 Igdir University 10.21597/jist.1278345 Chemical Engineering Kimya Mühendisliği Preparation and Characterization of Pvp Stabilized Rhodium Iron Bimetallic Nanoclusters and Investigation of Catalytic Activity in DMAB Hydrolysis Pvp ile Kararlaştırılmış Rodyum Demir Bimetalik Nanokümelerinin Hazırlanması, Karakterizasyonu ve DMAB Hidrolizindeki Katalitik Etkinliğinin İncelenmesi https://orcid.org/0000-0002-9171-7781 Karataş Yaşar VAN YÜZÜNCÜ YIL ÜNİVERSİTESİ, MURADİYE MESLEK YÜKSEKOKULU https://orcid.org/0000-0001-6922-043X Rüzgar Adem VAN YÜZÜNCÜ YIL ÜNİVERSİTESİ 09 01 2023 13 3 1958 1969 04 06 2023 05 12 2023 Copyright © 2011, Journal of the Institute of Science and Technology 2011 Journal of the Institute of Science and Technology

Rh-Fe nanoparticles (Rh-Fe@PVP) stabilized with poly(N-vinyl-2-pyrrolidone) (PVP) were synthesized by alcohol reduction technique, which is an efficient and environmentally friendly method. The synthesized nanoparticles were characterized by SEM, SEM/EDX, UV/Vis techniques. The prepared nanoparticles were used as a catalyst in the production of hydrogen from the hydrolysis reaction of dimethylamine-borane, a boron-nitrogen (B-N) derivative, which stands out due to its advantages such as high hydrogen content, stability and environmental friendliness. Bimetallic nanoparticles, which were calculated as TOF value (54.24 1/min) and activation energy (49.9 kJ/mol), were evaluated as an efficient catalytic system with these properties. As a result of investigating the effects of catalyst and substrate concentrations on the catalytic reaction, the rate expression of the reaction; It was determined that it progressed from 0.4 order according to the catalyst concentration and 0.3 order according to the substrate concentration.

Poli(N-vinil-2-pirolidon) (PVP) ile kararlaştırılmış Rh-Fe nanoparçacıkları (Rh-Fe@PVP) verimli ve çevreci bir yöntem olan alkol indirgeme tekniği ile sentezlendi. Sentezlenen nanoparçacıklar SEM, SEM/EDX, UV/Vis teknikleriyle karakterize edildi. Hazırlanan nanoparçacıklar yüksek hidrojen içeriği, kararlılığı ve çevre dostu olması gibi avantajları nedeniyle öne çıkan bir bor-azot (B-N) türevi olan dimetilamin-boranın hidroliz tepkimesinden hidrojen üretiminde katalizör olarak kullanıldı. TOF değeri (54.24 1/min) ve aktivasyon enerjisi (49.9 kJ/mol) olarak hesaplanan iki metalli nanoparçacıklar bu özellikleri ile verimli bir katalitik sistem olarak değerlendirildi. Katalizör ve substrat konsantrasyonlarının katalitik tepkime üzerindeki etkilerinin araştırılması sonucu tepkimenin hız ifadesinin; katalizör konsantrasyonuna göre 0.4 mertebeden, substrat konsantrasyonuna göre ise 0.3 mertebeden ilerlediği tespit edildi.

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