The Metal–Support Interaction Concerning the Particle Size Effect of Pd/Al2O3 on Methane Combustion,Angewandte Chemie International Edition

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The Metal–Support Interaction Concerning the Particle Size Effect of Pd/Al2O3 on Methane Combustion
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2017-11-15 12:00:32 , DOI: 10.1002/anie.201709124
Kazumasa Murata ₁ , Yuji Mahara ₁ , Junya Ohyama _{1,

2} , Yuta Yamamoto ₃ , Shigeo Arai ₃ , Atsushi Satsuma _{1,

2}

Affiliation

Size and phase matters: Pd/θ-Al₂O₃ and Pd/α-Al₂O₃ exhibit a different size effect from Pd/γ-Al₂O₃. Based on a structural analysis using spectroscopy and microscopy, the dependence of catalytic activity on size and the alumina crystalline phase was due to the fraction of step sites on the Pd particle. This difference in fraction is derived from the particle shape, which varies with Pd particle size and strength of metal–support interaction.

中文翻译：

Pd / Al2O3对甲烷燃烧的粒径效应的金属-载体相互作用

大小和相位事项：钯/θ-Al系₂ ö ₃和Pd /α-Al系₂ ö ₃表现出选自Pd /γ-Al系不同的尺寸效应₂ ö ₃。基于使用光谱学和显微镜的结构分析，催化活性对尺寸和氧化铝结晶相的依赖性是由于Pd颗粒上台阶部位的分数所致。馏分的这种不同是由颗粒形状引起的，颗粒形状随Pd颗粒大小和金属与载体相互作用的强度而变化。

更新日期：2017-11-16

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