Zr摻雜對PdO/Ce 1-x Pd x O 2-δ 催化劑CO和CH 4 催化氧化的影響（英文）
發(fā)布時間：2021-06-13 07:18
采用溶液燃燒法制備出PdO/Ce1-xPdxO2-δ和PdO/Ce1-xPdxO2-δ（Pd O/CPZ）催化劑,通過硝酸處理去除催化劑表面的Pd O物種得到對應的Ce1-xPdxO2-δ（CP）和Ce1-xPdxO2-δ（CPZ）催化劑。考究四種催化劑（Pd O/CP、Pd O/CPZ、CP、CPZ）對CO和CH4的氧化活性,并計算得出表面Pd O和Pdn+物種的轉化頻率（TOF）。結果表明Zr的添加對Pd O催化劑上CO和CH4的催化氧化活性具有不同的影響。Zr的添加對Pd O/CPZ和CPZ催化劑的CO催化活性具有明顯的促進作用,前者歸因于PdO/CPZ催化劑表面生成了更小顆粒的Pd O粒子,后者歸因于CPZ催化劑中含有更多的氧空位。對于CH4的催化氧化,...
【文章來源】：物理化學學報. 2016,32(07)北大核心SCICSCD
【文章頁數】：9 頁
【文章目錄】：
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:
本文編號：3227267
【文章來源】：物理化學學報. 2016,32(07)北大核心SCICSCD
【文章頁數】：9 頁
【文章目錄】：
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:
本文編號：3227267
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