Oxygen intercalation under hexagonal boron nitride (h-BN) on Pt(111)

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• 作者：Yanhong Zhang ; Mingming Wei ; Qiang Fu ; Xinhe Bao
• 关键词：h ; BN ; Oxygen intercalation ; CO oxidation ; LEEM/PEEM ; NAP ; XPS ; 鍏柟姘寲纭?/li> 姘ф皵鎻掑眰 ; CO姘у寲鍙嶅簲 ; 浣庤兘鐢靛瓙鏄惧井闀?鍏夌數鍙戝皠鐢靛瓙鏄惧井闀?LEEM/PEEM) ; 杩戝父鍘媂灏勭嚎鍏夌數瀛愯兘璋?NAP ; XPS)
• 刊名：Chinese Science Bulletin
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：60
• 期：18
• 页码：1572-1579
• 全文大小：3,397 KB
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• 作者单位：Yanhong Zhang (1)
  Mingming Wei (1)
  Qiang Fu (1)
  Xinhe Bao (1)
  
  1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, 116023, China
  
• 刊物主题：Science, general; Life Sciences, general; Physics, general; Chemistry/Food Science, general; Earth Sciences, general; Engineering, general;
• 出版者：Springer Berlin Heidelberg
• ISSN：1861-9541

文摘

The interface between a two-dimensional (2D) atomic crystal and a metal surface can be regarded as a nanoreactor, in which molecule adsorption and catalytic reactions may occur. In this work, we demonstrate that oxygen intercalation and desorption occur at the interface between hexagonal boron nitride (h-BN) overlayer and Pt(111) surface by using near-ambient pressure X-ray photoelectron spectroscopy (NAP-XPS), photoemission electron microscopy, and low-energy electron microscopy. Furthermore, CO oxidation under the h-BN cover was also observed by NAP-XPS. The present results indicate that the nanospace under the 2D cover can be used for surface reactions, in which novel surface chemistry may be induced by the nanoconfinement effect. Keywords h-BN Oxygen intercalation CO oxidation LEEM/PEEM NAP-XPS