采用溶液燃燒法制備出PdO/Ce_1-xPd_xO_2-δ和PdO/Ce_1-xPd_xO_2-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(duì)應(yīng)的Ce_1-xPd_xO_2-δ（CP）和Ce_1-xPd_xO_2-δ（CPZ）催化劑�？季克姆N催化劑（Pd O/CP、Pd O/CPZ、CP、CPZ）對(duì)CO和CH₄的氧化活性,并計(jì)算得出表面Pd O和Pdn+物種的轉(zhuǎn)化頻率（TOF）。結(jié)果表明Zr的添加對(duì)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(duì)Pd O/CPZ和CPZ催化劑的CO催化活性具有明顯的促進(jìn)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(duì)于CH₄的催化氧化,... 

【文章來源】：物理化學(xué)學(xué)報(bào). 2016,32(07)北大核心SCICSCD

【文章頁(yè)數(shù)】：9 頁(yè)

【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(hào)：3227267