Nickel oxide nanoparticles catalyst for enhancing green hydrogen production: effect of preparation conditions.

ABSTRACT: This work focused on the synthesis of nickel oxide under varying hydrothermal conditions as a non-precious and efficient catalyst for NaBH₄ hydrolysis to generate hydrogen. The structural, morphological, and textural features of the calcined samples were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and N₂-physisorption techniques. XPS analysis confirmed the presence of Ni²⁺ and Ni³⁺ species, with varying Ni³⁺/Ni²⁺ ratios across the samples. The NH-200 samples showed the highest hydrogen generation rate, approximately 129

SUBMITTER: Mahmoud HA 

PROVIDER: S-EPMC12560531 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature