Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2G6, Canada.
Phys Chem Chem Phys. 2011 Nov 21;13(43):19615-23. doi: 10.1039/c1cp22837d. Epub 2011 Oct 10.
A dehydrogenation anode is reported for hydrocarbon proton conducting solid oxide fuel cells (SOFCs). A Cu-Cr(2)O(3) nanocomposite is obtained from CuCrO(2) nanoparticles as an inexpensive, efficient, carbon deposition and sintering tolerant anode catalyst. A SOFC reactor is fabricated using a Cu-Cr(2)O(3) composite as a dehydrogenation anode and a doped barium cerate as a proton conducting electrolyte. The protonic membrane SOFC reactor can selectively convert ethane to valuable ethylene, and electricity is simultaneously generated in the electrochemical oxidative dehydrogenation process. While there are no CO(2) emissions, traces of CO are present in the anode exhaust when the SOFC reactor is operated at over 700 °C. A mechanism is proposed for ethane electro-catalytic dehydrogenation over the Cu-Cr(2)O(3) catalyst. The SOFC reactor also has good stability for co-generation of electricity and ethylene at 700 °C.
一种用于烃类质子传导固体氧化物燃料电池（SOFC）的脱氢阳极。从 CuCrO2纳米粒子获得了 Cu-Cr2O3纳米复合材料，作为一种廉价、高效、抗积碳和烧结的阳极催化剂。使用 Cu-Cr2O3复合材料作为脱氢阳极和掺杂钡铈酸作为质子传导电解质来制造 SOFC 反应器。质子膜 SOFC 反应器可选择性地将乙烷转化为有价值的乙烯，并且在电化学氧化脱氢过程中同时产生电能。当 SOFC 反应器在 700°C 以上运行时，虽然没有 CO2排放，但阳极废气中仍存在痕量 CO。提出了在 Cu-Cr2O3催化剂上乙烷电催化脱氢的机理。该 SOFC 反应器在 700°C 时也具有良好的电力和乙烯联产稳定性。
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