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您的检索式：作者名="Uschi Graham"
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| 1 | Low temperature water-gas shift: in situ DRIFTS-reaction study of ceria surface area on the evolution of formats on Pt/CeO2 fuel processing catalysts for fuel cell applications 显示文摘 | Gary Jacobs Leann Williams Uschi Graham Gerald A Pennis E Burtron H D | 2003 | Applied Catalysis A: General2003，252，： | 1 |
| 2 | Characterization of fly ash from Kentucky power plants显示文摘 | James C. Hower J.David Robertson Gerald A. Thomas Amy S. Wong William H. Schram Uschi M. Graham Robert F. Rathbone Thomas L. Robl | 1996 | Fuel1996，，4： | 1 |
| 3 | 稳态实验考察经模拟道路老化的全配方稀燃NO_x捕集催化剂上的NO_x还原(英文)显示文摘Fully formulated lean NOx trap(LNT)catalysts of the type Pt/Rh/BaO/Al2O3 were prepared with and without incorporation of CeO2-ZrO2 in the washcoat,and their NOx reduction behavior was evaluated in steady-state,continuous flow experiments.In the fresh state, the CeO2-ZrO2 addition was found to exert little effect on NOx reduction activity using H2,CO,and NH3 as the reductants.However,after simulated road aging,NOx reduction activity was significantly impaired for the CeO2-ZrO2-free catalyst,whereas the performance of the CeO2-ZrO2-containing analog was affected to only a minor degree.These differences are explained on the basis of high-resolution transmission electron microscopy measurements showing that Pt supported on CeO2-ZrO2 remained highly dispersed after aging,whereas Pt supported on BaO/Al2O3 underwent significant sintering.In addition,the Pt/CeO2-ZrO2 component did not accumulate sulfur during aging, unlike Pt/BaO/Al2O3 for which significant sulfation of the Ba phase occurred.For both catalysts,selectivity to NH3 in NO and NO2 reduction by H2 increased after the catalyst aging,indicative of a change in the relative surface coverages of N and H ad-atoms on the precious metal sites. | Uschi GRAHAM Caio CESAR SPINDOLA DE OLIVEIRA Mark CROCKER | 2011 | 催化学报2011，32，5： | 1 |
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