首页 | 本学科首页   官方微博 | 高级检索  
     


Methane internal steam reforming in solid oxide fuel cells at intermediate temperatures
Affiliation:1. School of Chemical Engineering, The University of Queensland, Brisbane, Queensland, 4072, Australia;2. Institute of Energy and Climate Research: Materials Synthesis and Processing (IEK-1), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany;3. EV System Laboratory, Nissan Research Center, Nissan Motors Company, Ltd, 1 Natsushima-cho, Yokosuka-shi, Kanagawa, 237-8523, Japan
Abstract:The internal steam reforming of methane (CH4) on conventional solid oxide fuel cell (SOFC) anode (nickel-yttria stabilized zirconia or Ni-YSZ) offers significant advantages compared to the external reforming process. However, the technology is currently facing some major issues such as coking and oxidation of anode during operation. Here we report a low-temperature sinterable catalyst, Ce0·77Ni0·2Mn0·03O2-δ (CNMnO), applied on top of Ni-YSZ to perform the steam reforming reaction. A single cell with CNMnO/Ni-YSZ/YSZ/GDC/LSC configuration produces a peak power density of 492 mW cm?2 in wet hydrogen and 371 mW cm?2 in wet methane, at 600 °C. The cell also shows exceptional durability against Ni oxidation when tested in wet methane under 0.2 A cm?2 for 100 h. The improved performance and durability of the catalyst layer has been attributed to the nanosized precipitated Ni and Mn particles distributed on the surface of individual CNMnO particles.
Keywords:Durability  Methane  Nanoparticles  Oxidation  Reforming layer
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号