INTERNAL FUEL REFORMING IN INTERMEDIATE TEMPERATURE CERIA/GADOLINIA BASED SOFCs

机译：基于中间温度/钆的SOFC中的内部燃料重整

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Methane reforming has been studied over two nickel/ceria-gadolinia cermet anodes over the temperature range 550-700°C, for use in intermediate temperature ceria-gadolinia based SOFCs. Temperature programmed reduction has been used to study the reduction characteristics of the anodes, and indicates the presence of "bulk" NiO particles and smaller NiO particles in intimate contact with the ceria. The reforming activity, methane activation and carbon deposition have been studied using steady-state catalytic and non-steady-state temperature programmed spectroscopy. Both anodes show high activity towards methane steam reforming with methane activation occurring at temperatures as low as 482 K. At 650°C, steady-state steam reforming of methane was observed using a methane-rich mixture, with 20% methane conversion. Post-reaction temperature programmed oxidation has been used to characterise the level of carbon deposited during reforming and the strength of its interaction with the anode.

机译：在550-700℃的温度范围内的两种镍/二氧化铈 - 钆金属陶瓷阳极上研究了甲烷重整，用于中间温度的基于Ceria-gadolinia的SOFC。已经使用温度减少用于研究阳极的减少特性，并表明存在“块状”的NiO颗粒和较小的NiO颗粒与二氧化铈的紧密接触。使用稳态催化和非稳态温度编程光谱研究了重整活性，甲烷活化和碳沉积。两个阳极显示出在低至482K的温度下发生的甲烷蒸汽重整的高活性，在低至482K的温度下。在650℃下，使用富含甲烷的混合物观察甲烷的稳态蒸汽重整，具有20％的甲烷转化。后反应后温度编程氧化已经用于表征重整过程中沉积的碳水平，以及与阳极相互作用的强度。

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《International symposium on solid oxide fuel cells》|1999年||共10页
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R. Mark Ormerod; John W. Cotton; Stephanie J.A. Livermore;
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中图分类化学电源、电池、燃料电池;
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INTERNAL FUEL REFORMING IN INTERMEDIATE TEMPERATURE CERIA/GADOLINIA BASED SOFCs

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