1. Effects of Zr doping into ceria for the dry reforming of methane over ▫$Ni/CeZrO_2$▫ catalysts ein situ studies with XRD, XAFS, and AP-XPS : in situ studies with XRD, XAFS, and AP-XPSFeng Zhang, Zenghui Liu, Xiaobo Chen, Ning Rui, Luis E. Betancourt, Lili Lin, Wenqian Xu, Cheng-jun Sun, A. M. Milinda Abeykoon, José A. Rodriguez, Janvit Teržan, Kristijan Lorber, Petar Djinović, Sanjaya D. Senanayake, 2020, original scientific article Keywords: nickel, ceria, zirconia, ▫$CeZrO_2$▫ solid solution, XRD, XAFS, AP-XPS, dry reforming of methane Published in DiRROS: 13.03.2023; Views: 529; Downloads: 360 Full text (1,75 MB) This document has many files! More... |
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3. Effect of synthesis route of mesoporous zirconia based Ni catalysts on coke minimization in conversion of biogas to synthesis gasHande Mustu, Sena Yaşyerli, Nail Yaşyerli, Gülşen Doğu, Timur Doğu, Petar Djinović, Albin Pintar, 2015, original scientific article Abstract: Mesoporous zirconia and nickel incorporated zirconia catalysts were prepared following different routes. Synthesis of mesoporous zirconia and Ni incorporated zirconia with very narrow pore size distributions and high surface area was achieved. Ni incorporated mesoporous zirconia materials showed high activity in carbon dioxide reforming of methane, performed at 600 °C. Coke formation during dry reforming was eliminated over the Ni incorporated zirconia catalyst prepared by the one-pot procedure, using Pluronic P123 as the surfactant. It was shown that Ni was very well distributed within this material with cluster sizes smaller than the detection limit of XRD. This catalyst also showed highly stable catalytic performance. However, the catalysts prepared by the impregnation method showed higher activity but much higher coke formation than the catalyst prepared by the one-pot route. Keywords: Biogas, syngas, dry reforming, mesoporous zirconia, coke Published in DiRROS: 12.02.2015; Views: 4801; Downloads: 847 Link to full text |