@article{Wu2019, 
author = {Hao Wu and Pengju Ren and Peng Zhao and Zhongmiao Gong and Xiaodong Wen and Yi Cui and Qiang Fu and Xinhe Bao},
title = {Dynamic nanoscale imaging of enriched CO adlayer on Pt(111) confined under h-BN monolayer in ambient pressure atmospheres},
year = {2019},
journal = {Nano Research},
volume = {12},
number = {1},
pages = {85-90},
keywords = {two-dimensional materials, confinement effect, near ambient pressure scanning tunneling microscope (NAP-STM), molecule enrichment},
url = {https://www.sciopen.com/article/10.1007/s12274-018-2184-8},
doi = {10.1007/s12274-018-2184-8},
abstract = {Fundamental understanding of chemistry confined to nanospace remains a challenge since molecules encapsulated in confined microenvironments are difficult to be characterized. Here, we show that CO adsorption on Pt(111) confined under monolayer hexagonal boron nitride (h-BN) can be dynamically imaged using near ambient pressure scanning tunneling microscope (NAP-STM) and thanks to tunneling transparency of the top h-BN layer. The observed CO superstructures on Pt(111) in different CO atmospheres allow to derive surface coverages of CO adlayers, which are higher in the confined nanospace between h-BN and Pt(111) than those on the open Pt surface under the same conditions. Dynamic NAP-STM imaging data together with theoretical calculations confirm confinement-induced molecule enrichment effect within the 2D nanospace, which reveals new chemistry aroused by the confined nanoreactor.}
}