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Preparation of doped ceria-zirconia catalyst on foam support for ethanol steam reforming

Nikita Eremeev, Semyon Mironov, Olga Bulavchenko, Evgeny Suprun, Nikolay Khazanov, Tigran Vagramyan, Vladislav Sadykov, Yulia Bespalko

Abstract


Structured catalysts based on metal open-cell foam supports are promising due to their high strength, heat conductivity, chemical and thermal stability. This configuration enables the attainment of uniform temperature distribution and optimal mass transfer. In this work, the Ni highly-porous open-cell material is fabricated by means of the electroplating technique. The NiRu/PrSmCeZrO catalyst is comprised of fluorite and NiO phases. The NiRu/PrSmCeZrO catalyst is deposited onto the Ni foam support and tested in the ethanol steam reforming reaction. The primary products of this reaction are H2, CO, and CO2, while CH4 formation is negligible. The conversion of ethanol to its products is found to reach 100% at temperature of 700 °C. The yields of hydrogen, carbon monoxide, carbon dioxide and methane at 700 °C are determined to be 58 %, 14 %, 35 %, and 2.4 %, respectively, for feed 2.1 vol. % EtOH + 6.3 vol. % H2O + Ar at contact time ~ 0.3 s. The H2:CO ratio in the obtained syngas is greater than 1. The high performance of the catalyst is attributed to its high oxygen mobility (two forms with D* ~10−11 and ~10−12 cm2/s at 700 °C) and surface reactivity, as well as the microstructure and thermal conductivity of the foam. The catalyst demonstrates stable performance in the ethanol steam reforming process for 20 h of time-on-stream, exhibiting minimal degradation of its characteristics. Consequently, these open-cell foam catalysts can be utilized in an efficient manner for the ethanol steam reforming.

Keywords


structured catalysts; foam support based catalysts; doped ceria-zirconia; oxygen transport; hydrogen production; ethanol steam reforming

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References


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DOI: https://doi.org/10.15826/chimtech.10059

Copyright (c) 2026 Nikita Eremeev, Semyon Mironov, Olga Bulavchenko, Evgeny Suprun, Nikolay Khazanov, Tigran Vagramyan, Vladislav Sadykov, Yulia Bespalko

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