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A NO x storage and reduction catalyst for automotive exhaust gas was investigated using a model catalyst consisting of a Pt/Ba thin film on a Si substrate. The NO x or SO x adsorption/desorption phenomena in the model catalyst were studied using EPMA, AES, XPS, and EELS by changing the treatment conditions, temperature, and atmosphere. Based on measuring the nitrogen and sulfur...
Newly dispersed Zr oxides on SiO 2 were prepared from Cp 2 ZrCl 2 , [(i-PrCp) 2 ZrH(μ-H)] 2 , and Zr(OEt) 4 precursors and were characterized by X-ray absorption fine structure (XAFS) and catalytic ketonization of acetic acid. ZrCp 2 Cl 2 and [(i-PrCp) 2 ZrH(μ-H)] 2 precursors yielded monomeric Zr oxides with unsaturated...
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