Synthesis of Bimetallic Nickel-Cobalt Nanoparticles Supported by Functional Multi-Walled Carbon Nanotubes by Chemical Methods: Characterization and Hydrogen Energy Generation

• Published in: Topics in catalysis Vol. 67; no. 9-12; pp. 606 - 614
• Main Authors: Zare, Najmeh, Karimi, Fatemeh, Altuner, Elif Esra, Mashkoor, Hussein, Tiri, Rima Nour Elhouda, Gulbagca, Fulya, Bijad, Majede, Cherif, Ali, Sen, Fatih
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-05-2024; Springer Nature B.V
• Subjects: Bimetals; Catalysis; Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Enthalpy; Hydrogen production; Industrial Chemistry/Chemical Engineering; Intermetallic compounds; Multi wall carbon nanotubes; Nanoparticles; Nickel; Original Paper; Pharmacy; Physical Chemistry; Synthesis; Carbon Nanotubes; NiCo@f-MWCNT NPs; Methanolysis; Hydrogen Energy; Catalytic Reaction
• ISSN: 1022-5528; 1572-9028
• DOI: 10.1007/s11244-024-01907-x

In this study, nickel-cobalt@functionalized multi-walled carbon nanoparticles (NiCo@f-MWCNT NPs) were synthesized, analysed, and used for hydrogen generation via methanolysis on NaBH
4
. For the NPs synthesis, two steps were conducted (i.e., i: MWCNT was functionalized in an acid medium to support NPs (f-MWCNT); ii: NiCo NPs were synthesized and supplemented with f-MWCNT). Various characterization techniques were used to examine the morphological structure of NiCo@f-MWCNT NPs. The transmission electron microscope (TEM) results showed that the NPs were sized as 3.941 ± 1.094 nm with a spherical structure. The X-ray diffraction analysis (XRD) results indicated an average crystalline size of 1.46 nm. The evaluation of the catalytic performance for hydrogen production revealed that the turnover frequency (TOF) was calculated to be 2934.4 min
− 1
with activation energy (Ea) and enthalpy (∆H) of 39.29 kJ/mol and 36.74 kJ/mol, respectively, which indicates high viability for hydrogen transport and generation application and processes.