Activity and structure of perovskites as diesel reforming catalysts for solid oxide fuel cells.

Conference · Sat Jan 01 04:00:00 EST 2005 · Int. J. Appl. Ceram. Technol.

DOI:https://doi.org/10.1111/j.1744-7402.2005.02032.x· OSTI ID:981632

Liu, D -J; Krumpelt, M

Recent progress in developing perovskite materials as more cost-effective catalysts in autothermal reforming (ATR) of diesel fuel to hydrogen-rich reformate for solid oxide fuel cell (SOFC) application is reported. Perovskite-type metal oxides with B sites partially exchanged by ruthenium were prepared and evaluated under ATR reaction conditions. The hydrogen yield, reforming efficiency, and CO{sub x} selectivity of these catalysts were investigated using diesel surrogate fuel with 50 ppm sulfur. The catalyst performances have approached or exceeded a benchmark, high-cost rhodium-based material. In parallel with the reactivity study, we also investigated the physical properties of B-site doped perovskites and their impact on the reforming performance using various characterization techniques such as BET, X-ray powder diffraction, temperature programmable reduction, scanning electron microscopy, and synchrotron X-ray absorption spectroscopy. We found that ruthenium is highly dispersed into perovskite lattice and its redox behavior is directly associated with reforming activity.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: FE
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 981632
• Report Number(s): ANL/CMT/CP-113827
• Conference Information: Journal Name: Int. J. Appl. Ceram. Technol. Journal Issue: 4 ; 2005 Journal Volume: 2
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

08 HYDROGEN
30 DIRECT ENERGY CONVERSION
33 ADVANCED PROPULSION SYSTEMS
43 PARTICLE ACCELERATORS
ABSORPTION SPECTROSCOPY
CATALYSTS
CERAMICS
DIESEL FUELS
DIFFRACTION
EFFICIENCY
HYDROGEN
OXIDES
PERFORMANCE
PEROVSKITE
PEROVSKITES
PHYSICAL PROPERTIES
RUTHENIUM
SCANNING ELECTRON MICROSCOPY
SOLID OXIDE FUEL CELLS
SULFUR
SYNCHROTRONS