Improving the Sulphur Tolerance of Nickel Catalysts for Running Solid Oxide Fuel Cells on Waste Biogas

Improving the Sulphur Tolerance of Nickel Catalysts for Running Solid Oxide Fuel Cells on Waste Biogas
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提高以废沼气运行固体氧化物燃料电池的镍催化剂的耐硫性

DOI:
10.1149/1.3157947
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发表时间:
2009
期刊:
ECS Transactions
影响因子:
--
通讯作者:
Laycock C
Laycock C
中科院分区:
--
文献类型:
--
作者:
Laycock C

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为了探索固体氧化物燃料电池(SOFC)在沼气上运行的可能性,用在线四极质谱仪研究了2/1 CH4/CO2混合气体在Ni/YSZ(Y3稳定的氧化锆阳极)SOFC负极材料上750-1000℃的反应,并用反应后程序升温氧化(TPO)分析了碳沉积。在反应料流中加入硫化氢(H_2S),确定了含硫气体对镍基阳极的重整特性、积碳和耐久性的影响。除了研究常规Ni/YSZ阳极的性能外,还研究了金、Hafnia和CeO_2掺杂的Ni/YSZ阳极的性能,包括它们对重整活性、积碳和耐硫性的影响。
To explore the possibility of running Solid Oxide Fuel Cells (SOFC) on biogas, reactions of 2/1 CH4/CO2 gas mixtures over Ni/YSZ (yttria-stabilised zirconia) SOFC anode materials have been investigated using on-line quadrupole mass spectrometry in the temperature range 750-1000 C. Carbon deposition has been analysed by post-reaction temperature programmed oxidation (TPO). Hydrogen sulphide (H2S) added to the reactant stream established the effect of sulphur containing gases on the reforming characteristics, carbon deposition and durability of nickel-based anodes. In addition to investigating the behaviour of a conventional Ni/YSZ anode, the performance of gold-, hafnia-and ceria-doped Ni/YSZ anodes were also studied in terms of their influence on the reforming activity, carbon deposition and sulphur tolerance.