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NM04.09.07 : ASRM Reaction on Bimetallic Pt-Ni/CeO2-NR Catalysts by H2 Production

5:00 PM–7:00 PM Apr 5, 2018

PCC North, 300 Level, Exhibit Hall C-E

Description
Raul Perez-Hernandez1 Albina Gutiérrez Martínez1 Claudia Gutiérrez-Wing1

1, Instituto Nacional de Investigaciones Nucleares, Mexico, La Marquesa, Ocoyoacac, Mexico

Pt, Ni and bimetallic Ni-Pt were impregnate on CeO2 nanorods and tested in the autothermal steam reforming of methanol (ASRM) reaction in the range of 150–400 °C. Samples were characterized by XRD, TPR, H2-chemisorption, and CO-adsorption techniques. XRD showed the presence of crystalline structure with sharp diffraction peaks revealing a characteristic cubic phase of the cerianite and metallic Ni. No diffraction peaks of the Pt or bimetallic PtNi species were observed by this technique. Pt/CeO2-NR showed higher metal dispersion than PtNi/CeO2-NR and Ni/CeO2-NR catalysts respectively. The catalytic performance of the Pt-base nanocatalysts exhibit better methanol conversion than monometallic Ni/CeO2-NR sample. At higher temperature, the H2 selectivity decrease in the bimetallic catalysts, this finding could be attributed at the formation of the bimetallic Pt-Ni alloy nanoparticles.

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