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Turkish Journal of Chemistry

Abstract

Highly effective graphitic carbon nitride-supported RhFe Nanoparticles (denoted as RhFe/g-C3N4) were prepared using a simple wet impregnation-reduction method for the hydrolysis of sodium borohydride (NaBH4). The obtained RhFe/g-C3N4 catalyst was characterized using advanced analytical/spectroscopic techniques such as inductively coupled plasma-optical emission spectroscopy (ICP-OES), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Powder X-ray diffraction (P-XRD), X-ray spectroscopy (XPS), and fourier transform infrared spectroscopy (FT-IR). The catalytic activities of RhFe/g-C3N4 catalysts with varying Rh/Fe molar ratios were investigated, demonstrating superior catalytic activity compared to monometallic Rh and Fe. The initial turnover frequency (TOF) value of the Rh0.48Fe0.52/g-C3N4 catalyst was calculated as 33.04 min-1 and showed an H2 generation rate (HGR) of 4214.02 [[EQUATION]] at 298 K. Furthermore, this study elucidates the kinetic parameters (Ea#, ΔH#, ΔS#) of the hydrolysis of NaBH4 catalyzed by the Rh0.48Fe0.52/g-C3N4 catalyst. The findings demonstrated that the resulting Rh0.48Fe0.52/g-C3N4 catalyst was recyclable and retained 80.72% of the initial activity even after 10 runs.

Author ORCID Identifier

MERVE UÇAR KAYA: 0009-0001-7865-1511

MEHMET YURDERİ: 0000-0002-0233-8940

MEHMET ZAHMAKIRAN: 0000-0002-5633-3811

DOI

10.55730/1300-0527.3711

Keywords

Sodium borohydride, hydrolysis, graphitic carbon nitride, catalyst, rhodium, iron

First Page

68

Last Page

78

Publisher

The Scientific and Technological Research Council of Türkiye (TÜBİTAK)

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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