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Work Report

Work Report. GengYaochen Sept.14th. Effect of Ce addition. adjust Ce content of catalyst to abtain different ratio of Cu + /Cu 0 after reduction and correlate the ratio with C DMO &S EG data to figure out the role that Cu + & Cu 0 play in the reaction.

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Work Report

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  1. Work Report GengYaochen Sept.14th

  2. Effect of Ce addition adjust Ce content of catalyst toabtain different ratio of Cu+/Cu0 after reduction and correlate the ratio with CDMO &SEG data to figure out the rolethat Cu+&Cu0play in the reaction

  3. Cu(NO3)2+ Ce(NO3)3 + ammonia 真空 干燥 硅溶胶 搅拌 80℃ 蒸氨 抽滤 洗涤 400℃ 焙烧 Catalysts preparation Ammonia Evaporation Method ICP analysis

  4. Characterization N2O Titration • Metal dispersion diminishes along with the increase of Ce • content in the catalyst, which indicates that the Cu0 on the • surface decreases.

  5. Characterization TPR Intensity (a.u.) 1.2Ce 1Ce 0.8Ce 0.6Ce 100 120 140 160 180 200 220 240 260 280 300 Temperature (℃)

  6. Characterization BET analysis

  7. Characterization 1.2Ce dV/dD (cm3g-1nm-1) 1Ce 0.8Ce 0.6Ce Pore Diameter (nm)

  8. Characterization XRD ♦ Cu+ ♦ ▼ Cu0 ▼ ▼ ▼ 1.2Ce Intensity (a.u.) 1Ce 0.8Ce 0.6Ce 2 Theta (degree)

  9. Characterization N2O Titration ？ • Metal dispersion diminishes along with the increase of Ce • content in the catalyst, which indicates that the Cu0 on the • surface decreases. • The Ce contents of catalysts are so close that the real • regularity is blanketed by experimental errors.

  10. Thanks for your attention! Qs & As

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