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Methane combustion over PdO crystallite manipulated by support template

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载体模板效应对氧化钯的热化学行为及其甲烷燃烧稳定性的影响.pdf (514.7Kb)
Date
2005
Author
HU, Yu-Xiang
胡昱翔
CAI, Fan
蔡钒
FANG, Rong-Qian
方荣谦
LI, Chang-You
李长有
YANG, Le-Fu
杨乐夫
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  • 化学化工-已发表论文 [14469]
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Abstract
A comparative investigation on the thermochemical and catalytic properties of palladium oxide crystallite supported on monoclinic or tetragonal-doped zirconia, demonstrated that by sharing the interfacial atoms with monoclinic zirconia, PdO crystallite aggregates at the aid of this epitaxy on the support template to acquire better dispersion. Moreover, tracking the heating-cooling cycles in air atmosphere, DTG analysis illustrated that the crystallized PdO gradually transforms into the epitaxial PdO species on the monochnic zirconia and the improved mobility of oxygen in lattices promotes the oxidative regeneration of PdO at high temperature thereby. Combining the above two superiorities on aggregation forms of NO, the template of monoclinic zirconia inhibits the high temperature deactivation of catalysts for methane combustion, meanwhile, increases the stability of combustion reaction and the sustainability of catalysts. However, the doping of tetragonal zirconia into monoclinic support muffles those advantages prominently.
Citation
ACTA CHIMICA SINICA,2005,63(6):473-478
URI
https://dspace.xmu.edu.cn/handle/2288/11235

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