Zr掺杂对PdO/Ce 1-x Pd x O 2-δ 催化剂CO和CH 4 催化氧化的影响(英文)
发布时间:2021-06-13 07:18
采用溶液燃烧法制备出PdO/Ce1-xPdxO2-δ和PdO/Ce1-xPdxO2-δ(Pd O/CPZ)催化剂,通过硝酸处理去除催化剂表面的Pd O物种得到对应的Ce1-xPdxO2-δ(CP)和Ce1-xPdxO2-δ(CPZ)催化剂。考究四种催化剂(Pd O/CP、Pd O/CPZ、CP、CPZ)对CO和CH4的氧化活性,并计算得出表面Pd O和Pdn+物种的转化频率(TOF)。结果表明Zr的添加对Pd O催化剂上CO和CH4的催化氧化活性具有不同的影响。Zr的添加对Pd O/CPZ和CPZ催化剂的CO催化活性具有明显的促进作用,前者归因于PdO/CPZ催化剂表面生成了更小颗粒的Pd O粒子,后者归因于CPZ催化剂中含有更多的氧空位。对于CH4的催化氧化,...
【文章来源】:物理化学学报. 2016,32(07)北大核心SCICSCD
【文章页数】:9 页
【文章目录】:
1 Introduction
2 Experimental
2.1 Catalyst preparation
2.2 Characterizations
2.3 Catalytic testing
3 Results
3.1 Structural characterization
3.2 DRIFT spectra of CO chemisorption on the catalysts
3.3 Catalytic activity
4 Discussion
4.1 Structural properties of catalysts
4.2 Effect of Zr addition in the catalysts for CO oxidation
4.3 Effect of Zr addition in the catalysts for CH4oxidation
5 Conclusions
Supporting Information:
本文编号:3227267
【文章来源】:物理化学学报. 2016,32(07)北大核心SCICSCD
【文章页数】:9 页
【文章目录】:
1 Introduction
2 Experimental
2.1 Catalyst preparation
2.2 Characterizations
2.3 Catalytic testing
3 Results
3.1 Structural characterization
3.2 DRIFT spectra of CO chemisorption on the catalysts
3.3 Catalytic activity
4 Discussion
4.1 Structural properties of catalysts
4.2 Effect of Zr addition in the catalysts for CO oxidation
4.3 Effect of Zr addition in the catalysts for CH4oxidation
5 Conclusions
Supporting Information:
本文编号:3227267
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