This work aimed at exploring a new kind of purification catalysts for fuel ethanol engine exhaust. Platinum loaded on Ce0.5Zr0.5O2 was prepared by impregnation method and characterized by X-ray diffraction, Brunner–Emmet–Teller measurements (BET), temperature-programmed reduction of hydrogen, scanning electron microscope, and X-ray photoelectron spectra. The three-way catalyst platinum/ceria–zirconia/fw is prepared with the paste ball mill coating technique. And the catalytic performance is evaluated under simulated fuel ethanol engine exhaust gas condition. The catalysts not only show excellent low-temperature performances and several-way catalytic activities for carbon monoxide, hydrocarbons, nitrogen oxides, and acetaldehyde but also have better high-temperature resistance. The addition of sulfur dioxide to feedstream degrades the performances of the catalysts.

中文翻译：

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载铂Ce0.5Zr0.5O2催化剂净化燃料乙醇发动机尾气

本工作旨在探索一种新型燃料乙醇发动机尾气净化催化剂。通过浸渍法制备负载在 Ce0.5Zr0.5O2 上的铂，并通过 X 射线衍射、Brunner-Emmet-Teller 测量（BET）、氢的程序升温还原、扫描电子显微镜和 X 射线光电子能谱表征。三元催化剂铂/二氧化铈-氧化锆/fw是用糊状球磨机涂层技术制备的。并在模拟燃料乙醇发动机排气条件下评价催化性能。该催化剂不仅表现出优异的低温性能和对一氧化碳、烃类、氮氧化物和乙醛的多效催化活性，而且具有较好的耐高温性能。