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Room Temperature Oxidation of the Surface of Highly Oriented Pyrolytic Graphite (HOPG) with Nitrogen Dioxide in the Presence of Supported Palladium Particles
Kinetics and Catalysis ( IF 1.3 ) Pub Date : 2020-08-03 , DOI: 10.1134/s0023158420040126 M. Yu. Smirnov , A. V. Kalinkin , A. M. Sorokin , V. I. Bukhtiyarov
中文翻译:
负载钯颗粒存在下二氧化氮对高取向热解石墨(HOPG)表面的室温氧化
更新日期:2020-08-03
Kinetics and Catalysis ( IF 1.3 ) Pub Date : 2020-08-03 , DOI: 10.1134/s0023158420040126 M. Yu. Smirnov , A. V. Kalinkin , A. M. Sorokin , V. I. Bukhtiyarov
Abstract
The interaction of palladium nanoparticles (average size, ∼3 nm) deposited on the surface of highly oriented pyrolytic graphite (HOPG) with nitrogen dioxide at room temperature and a pressure of 10–6 or 10–5 mbar was studied by X-ray photoelectron spectroscopy (XPS). It was shown that the structure of several surface graphene layers was destroyed under these conditions due to the oxidation of carbon at the interface between Pd and HOPG. The reaction proceeded with the participation of oxygen atoms, which were formed as a result of the dissociation of NO2 molecules on the palladium surface. Palladium particles retained their metallic nature, but they penetrated deep into graphite in this case.中文翻译:
负载钯颗粒存在下二氧化氮对高取向热解石墨(HOPG)表面的室温氧化