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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Adsorption and Desorption of NO and NO2 Molecules on Gold Cluster Anions Observed by Thermal Desorption Spectrometry
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Adsorption and Desorption of NO and NO2 Molecules on Gold Cluster Anions Observed by Thermal Desorption Spectrometry

机译:热解吸光谱观察到的金簇阴离子对NO和NO2分子的吸附和解吸

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摘要

The adsorption and thermal desorption of NO and NO2 molecules on gold cluster anions, Au-4(-), were experimentally observed using gas-phase thermal desorption spectrometry. Multiple collisions of NO molecules with Au-4(-) at 300 K generated Au-4(NO)(k)(-) (k = 1-3). The NO molecules desorbed from the clusters in a stepwise manner when the clusters were heated, and finally Au-4(-) was regenerated above 600 K. For NO2, Au4N2O4- was found to be thermally unstable. Hence, two NO2 molecules were sequentially released from Au4N3O6-, when Au4N3O6- was heated at 500-800 K, forming Au4NO2-. A gold oxide cluster, Au4O2-, was produced as a result of the decomposition of NO2 to NO and O on Au-4(-), and the NO molecules were released above 900 K.
机译:使用气相热解吸光谱法实验观察到金簇阴离子,Au-4( - - 4( - )上的NO和NO 2分子的吸附和热解吸。 在300K产生Au-4( - - )的多种分子的多种碰撞产生Au-4(NO)(K)( - )(K = 1-3)。 当簇被加热时,没有以逐步的方式从簇中解吸的不吸收,最后再生Au-4( - )600k。对于NO2,发现Au4N 2 O 4-是热不稳定的。 因此,当Au4N3O6-在500-800k被加热时,从Au4N 3 O 6依次释放出两种NO 2分子,形成Au4NO 2-。 由于NO2至NO和O ON AU-4( - )的分解而产生金氧化物簇Au4O2-,并且在900K以上释放不释放分子。

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