Surface Chemistry of Monoethanolamine on Oxygen-Precovered Cu(100)

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• 作者：Yi-Shiue Lin ; Ching-Yung Wang ; Che-Ming Yang ; Jian-Shiun Lin ; Che-Wei Kuo ; Jong-Liang Lin
• 刊名：Journal of Physical Chemistry C
• 出版年：2008
• 出版时间：June 5, 2008
• 年：2008
• 卷：112
• 期：22
• 页码：8304 - 8310
• 全文大小：529K
• 年卷期：v.112,no.22(June 5, 2008)
• ISSN：1932-7455

文摘

The adsorption and reactions of HOCH₂CH₂NH₂ on oxygen-precovered Cu(100) were investigated under ultrahigh vacuum conditions. Reflection–absorption infrared spectroscopy (RAIRS) studies were performed to monitor and identify the surface intermediates from HOCH₂CH₂NH₂ decomposition, with the assistance of density functional theory (DFT) calculations. −OCH₂CH₂NH− was generated from scission of both the O−H and N−H bonds of HOCH₂CH₂NH₂ and decomposed to form surface −OCH₂CH₂N− and to evolve CH₂O and HCN observed with temperature-programmed reaction/desorption (TPR/D). The −OCH₂CH₂N− species further decomposed to generate H₂, HCN, and N₂, together with surface carbon. The bonding structures of the two surface intermediates, −OCH₂CH₂NH− and −OCH₂CH₂N−, were also investigated by DFT calculations.