Efficient hydrogen production via hydrolysis of NaBH<sub>4</sub> by the Co/Co<sub>3</sub>O<sub>4</sub>-Cu<sub>2</sub>O-ZnO catalyst prepared using mixed metal oxides as support material
In this study, we investigate for the first time the catalytic activity of the Co/Co3O4-Cu2O-ZnO catalyst in hydrogen production from the hydrolysis of NaBH4. After the Co3O4-CuO-ZnO support material was synthesized by the chemical precipitation method, the impregnation method was used to dope Co on the support material. Morphological and structural analyses of the Co/Co3O4-Cu2O-ZnO catalyst were investigated by XRD, XPS, SEM, TEM, and BET methods. Then, activity tests of the catalyst were performed in an H-2 generation system. The hydrogen generation rate (HGR) of the Co/Co3O4-Cu2O-ZnO catalyst was found 4698 ml min(-1) gcat(-1) at 25 degrees C. After the HGR measurements at 25, 35, 45, and 55 degrees C the activation energy of the Co/Co3O4-Cu2O-ZnO catalyst was calculated as 28.05 kJ mol(-1). In addition, the HGR value had reached a high value such as 12,920 ml min(-1) gcat(-1) at 55 degrees C.
- Journal
- JOURNAL OF MATERIALS RESEARCH
- Year
- 2024
- Volume
- 39
- Issue
- 16
- Pages
- 2306-2316
- ISSN
- 0884-2914
- eISSN
- 2044-5326
- DOI
- 10.1557/s43578-024-01387-5
- WoS UID
- WOS:001268367800003