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March 26, 2026International Journal of Applied Ceramic Technology0 citations

Nickel‐Loaded Lanthanum and Praseodymium Silicates With the Apatite Structure as Catalysts of Ethanol Steam Reforming

MLM. Yu. Lopatin AFA. A. Fedorova YFYu.E. FedorovaLomonosov Moscow State University

Puntos clave

This research aims to develop and evaluate nickel-loaded lanthanum and praseodymium silicates for effective ethanol steam reforming.
Synthesize apatite-type silicate supports using a modified sol-gel method with β-cyclodextrin template.
Investigate the impact of Brij 58 surfactant addition on catalyst properties.
Substitute lanthanum with praseodymium to assess effects on catalysis.
Analyze samples using XRD, EDX, and thermal analysis techniques.
Test catalysts in ethanol steam reforming reactions.
Nickel-loaded lanthanum and praseodymium silicates demonstrated enhanced catalytic activity for ethanol steam reforming.
The addition of Brij 58 surfactant improved catalyst properties such as surface area and porosity.
Thermal analysis revealed significant differences in the thermal stability of silicates with different lanthanum and praseodymium ratios.

Resumen

ABSTRACT A modified sol–gel method using β‐cyclodextrin as a template was used to synthesize apatite‐type lanthanum and praseodymium silicate supports for Ni‐loaded ethanol steam reforming catalysts. The effects of nonionic Brij 58 surfactant addition and the substitution of lanthanum with praseodymium on the properties of catalysts were studied. Thermal decomposition of the sample precursor gels was investigated by thermal analysis coupled with evolved gas mass spectrometry. The samples were analyzed by XRD, EDX, low‐temperature nitrogen physisorption, temperature‐programmed reduction with H 2 , XPS, oxygen isotope exchange with C 18 O 2 , and tested in the ethanol steam reforming.

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