Caffeine Coated Iron Oxide Crustacean for Ammonia Borane Dehydrogenation Development of Magnetic Nickel Nanoparticles

Erhan Onat

Makale detayları

Caffeine Coated Iron Oxide Crustacean for Ammonia Borane Dehydrogenation Development of Magnetic Nickel Nanoparticles

Yazarlar:

Erhan Onat

Yayıncı:

Bitlis Eren University

Ana Başlıklar:

Catalysis and Mechanisms of Reactions

Dergi:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.633-646

Belge Tipi:

Makale

Yayın Tarihi:

3/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001343835

pISSN:

2147-3129

Anahtar kelimeler:

Özet:

 The aim of this study was to develop nickel Ni nanoclusters with caffeine-coated magnetic iron oxide Fe3O4 center shells for the catalytic hydrolysis of ammonia borane AB. In the study, magnetic iron oxide MIO clusters were obtained by hydrothermal treatment. These clusters were first coated with caffeine according to the reflux method at 150 oC for 12 hours, and then Ni was decorated on these clusters by impregnation method. Magnetic Ni catalyst NiCFe3O4 was synthesized by dropping 10 M 20 mL sodium borohydride NaBH4-SBH into the Ni-C Fe3O4 magnetic nanoclusters in solution as a result of the loading processes carried out at room conditions. After filtration, washing and drying in nitrogen atmosphere, the crumbled catalyst was identified by advanced identification techniques FT-IR, BET, SEM, EDX, XPS and used in AB hydrolysis. The solvate medium, catalyst amount, AB concentration, temperature and repeated use parameters were investigated for AB catalytic hydrolysis. As a result of the optimization at 303 K, the best hydrogen production was determined as 7873 mLg.min using 2.5  NaOH, 30 mg catalyst and 300 mM AB. The catalyst cycle frequency TOF was measured as 1447 s-1. As a result of reaction kinetics investigations, it was determined that the reaction was 1st order and the reaction activation energy was 35.07 kJmol.

 The aim of this study was to develop nickel Ni nanoclusters with caffeine-coated magnetic iron oxide Fe3O4 center shells for the catalytic hydrolysis of ammonia borane AB. In the study, magnetic iron oxide MIO clusters were obtained by hydrothermal treatment. These clusters were first coated with caffeine according to the reflux method at 150 oC for 12 hours, and then Ni was decorated on these clusters by impregnation method. Magnetic Ni catalyst NiCFe3O4 was synthesized by dropping 10 M 20 mL sodium borohydride NaBH4-SBH into the Ni-C Fe3O4 magnetic nanoclusters in solution as a result of the loading processes carried out at room conditions. After filtration, washing and drying in nitrogen atmosphere, the crumbled catalyst was identified by advanced identification techniques FT-IR, BET, SEM, EDX, XPS and used in AB hydrolysis. The solvate medium, catalyst amount, AB concentration, temperature and repeated use parameters were investigated for AB catalytic hydrolysis. As a result of the optimization at 303 K, the best hydrogen production was determined as 7873 mLg.min using 2.5  NaOH, 30 mg catalyst and 300 mM AB. The catalyst cycle frequency TOF was measured as 1447 s-1. As a result of reaction kinetics investigations, it was determined that the reaction was 1st order and the reaction activation energy was 35.07 kJmol.

 The aim of this study was to develop nickel Ni nanoclusters with caffeine-coated magnetic iron oxide Fe3O4 center shells for the catalytic hydrolysis of ammonia borane AB. In the study, magnetic iron oxide MIO clusters were obtained by hydrothermal treatment. These clusters were first coated with caffeine according to the reflux method at 150 oC for 12 hours, and then Ni was decorated on these clusters by impregnation method. Magnetic Ni catalyst NiCFe3O4 was synthesized by dropping 10 M 20 mL sodium borohydride NaBH4-SBH into the Ni-C Fe3O4 magnetic nanoclusters in solution as a result of the loading processes carried out at room conditions. After filtration, washing and drying in nitrogen atmosphere, the crumbled catalyst was identified by advanced identification techniques FT-IR, BET, SEM, EDX, XPS and used in AB hydrolysis. The solvate medium, catalyst amount, AB concentration, temperature and repeated use parameters were investigated for AB catalytic hydrolysis. As a result of the optimization at 303 K, the best hydrogen production was determined as 7873 mLg.min using 2.5  NaOH, 30 mg catalyst and 300 mM AB. The catalyst cycle frequency TOF was measured as 1447 s-1. As a result of reaction kinetics investigations, it was determined that the reaction was 1st order and the reaction activation energy was 35.07 kJmol.

 The aim of this study was to develop nickel Ni nanoclusters with caffeine-coated magnetic iron oxide Fe3O4 center shells for the catalytic hydrolysis of ammonia borane AB. In the study, magnetic iron oxide MIO clusters were obtained by hydrothermal treatment. These clusters were first coated with caffeine according to the reflux method at 150 oC for 12 hours, and then Ni was decorated on these clusters by impregnation method. Magnetic Ni catalyst NiCFe3O4 was synthesized by dropping 10 M 20 mL sodium borohydride NaBH4-SBH into the Ni-C Fe3O4 magnetic nanoclusters in solution as a result of the loading processes carried out at room conditions. After filtration, washing and drying in nitrogen atmosphere, the crumbled catalyst was identified by advanced identification techniques FT-IR, BET, SEM, EDX, XPS and used in AB hydrolysis. The solvate medium, catalyst amount, AB concentration, temperature and repeated use parameters were investigated for AB catalytic hydrolysis. As a result of the optimization at 303 K, the best hydrogen production was determined as 7873 mLg.min using 2.5  NaOH, 30 mg catalyst and 300 mM AB. The catalyst cycle frequency TOF was measured as 1447 s-1. As a result of reaction kinetics investigations, it was determined that the reaction was 1st order and the reaction activation energy was 35.07 kJmol.

Makale detayları

Caffeine Coated Iron Oxide Crustacean for Ammonia Borane Dehydrogenation Development of Magnetic Nickel Nanoparticles

Yazarlar:

Erhan Onat

Yayıncı:

Bitlis Eren University

Ana Başlıklar:

Catalysis and Mechanisms of Reactions

Dergi:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.633-646

Belge Tipi:

Makale

Yayın Tarihi:

3/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001343835

pISSN:

2147-3129

Ammonia borane

Dehydrogenation

Fe3O4

Hydrolysis

Catalyst

Ni@C/Fe3O4

Sayı

Makale detayları

Caffeine Coated Iron Oxide Crustacean for Ammonia Borane Dehydrogenation Development of Magnetic Nickel Nanoparticles

Yazarlar: Erhan Onat

Yayıncı: Bitlis Eren University

Ana Başlıklar: Catalysis and Mechanisms of Reactions

Dergi: Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.633-646

Belge Tipi: Makale

Yayın Tarihi: 3/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001343835

pISSN: 2147-3129

Ammonia borane

Dehydrogenation

Fe3O4

Hydrolysis

Catalyst

Ni@C/Fe3O4

Sayı

Yazarlar:

Erhan Onat

Yayıncı:

Bitlis Eren University

Ana Başlıklar:

Catalysis and Mechanisms of Reactions

Dergi:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.633-646

Belge Tipi:

Makale

Yayın Tarihi:

3/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001343835

pISSN:

2147-3129