Deep oxidation of methane on particles derived from YSZ-supported Pd-Pt-(O) coatings synthesized by pulsed filtered cathodic arc
Deep oxidation of methane on particles derived from YSZ-supported Pd-Pt-(O) coatings synthesized by pulsed filtered cathodic arc
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脉冲过滤阴极电弧合成的 YSZ 负载 Pd-Pt-(O) 涂层颗粒上甲烷的深度氧化
DOI：
10.1016/j.catcom.2009.03.008
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
D. Horwat
中科院分区：
文献类型：
--
作者：
D. Horwat
Methane total oxidation was studied between 250 and 800°C in a specific quartz reactor for Pd, PdOy, Pd0.6Pt0.4Oyand Pd0.4Pt0.6Oythin films deposited on yttria stabilized zirconia (YSZ) substrates. Pt containing films exhibited poor activity and a rapid thermal decomposition. Pd and PdOyfilms showed good activity and transformed to particles dispersed on the YSZ substrates. The higher reaction rate of PdOyfilms was explained by a better dispersion of the catalyst. A drop of the reaction rate was observed when the temperature exceeded 735°C and 725°C for initially Pd and PdOy, respectively, which can be associated with the decomposition of PdO into Pd and O2. The good cycling stability and catalytic efficiency of the latter films render it promising for the pollution control in methane combustion.
