TY - JOUR

T1 - Cu-promoted Ni-LaCeOx/SBA-15 catalysts for ethanol steam reforming

AU - Dorofeeva, N.V.

AU - Putanenko, P.K.

AU - Salaev, M.A.

AU - Simonov, M.N.

AU - Larichev, YuV.

AU - Stonkus, O.A.

AU - Vodyankina, O.V.

N1 - This work was supported by the Russian Science Foundation (project No. 19-73-30026 ). The HR TEM studies were carried out using the facilities of the collective use center “National Center for Research of Catalysts” at Boreskov Institute of Catalysis.

PY - 2024/2/15

Y1 - 2024/2/15

N2 - Hydrogen is a globally recognized high-energy, clean, and ecofriendly fuel that is currently produced by means of electrocatalysis, biomass conversion, coal gasification, and thermal decomposition of hydrocarbons, with the steam reforming showing high potential. The present work is focused on Cu-promoted SBA-15-supported Ni-LaCeOx catalysts for ethanol steam reforming (ESR). The catalysts were prepared by incipient wetness impregnation and characterized by XRF, N2 adsorption-desorption, IR spectroscopy, SAXS, XRD, H2-TPR, Raman, and STA methods. The support features caused by the distribution of LaCeOx NPs and Cu promoter in proper ratios affect the conditions of formation of active dispersed Ni species to determine the catalyst performance and its reducibility. At 800 оС, the NiСu-LaCeOx/SBA-15 (1:1) catalyst demonstrates a 100 % ethanol conversion and 55 % hydrogen yield. Thus, the role of the Cu-containing promoter comprises both a significant decrease of carbon deposits on the catalyst surface and redirecting of the intermediate interactions towards the formation of the desired gaseous products.

AB - Hydrogen is a globally recognized high-energy, clean, and ecofriendly fuel that is currently produced by means of electrocatalysis, biomass conversion, coal gasification, and thermal decomposition of hydrocarbons, with the steam reforming showing high potential. The present work is focused on Cu-promoted SBA-15-supported Ni-LaCeOx catalysts for ethanol steam reforming (ESR). The catalysts were prepared by incipient wetness impregnation and characterized by XRF, N2 adsorption-desorption, IR spectroscopy, SAXS, XRD, H2-TPR, Raman, and STA methods. The support features caused by the distribution of LaCeOx NPs and Cu promoter in proper ratios affect the conditions of formation of active dispersed Ni species to determine the catalyst performance and its reducibility. At 800 оС, the NiСu-LaCeOx/SBA-15 (1:1) catalyst demonstrates a 100 % ethanol conversion and 55 % hydrogen yield. Thus, the role of the Cu-containing promoter comprises both a significant decrease of carbon deposits on the catalyst surface and redirecting of the intermediate interactions towards the formation of the desired gaseous products.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85179057946&origin=inward&txGid=208d8f7e75c615e93b915be2dc011b40

UR - https://linkinghub.elsevier.com/retrieve/pii/S0360319923061074

UR - https://www.mendeley.com/catalogue/a051ec2a-92e0-31b2-b476-bddc152daba3/

U2 - 10.1016/J.IJHYDENE.2023.11.267

DO - 10.1016/J.IJHYDENE.2023.11.267

M3 - Article

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

ER -