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Title: In situ atomic-scale observation of inhomogeneous oxide reduction

Here, we report in situ atomic-scale transmission electron microscopy observations of the surface dynamics during Cu 2O reduction. We show inhomogeneous oxide reduction caused by the preferential adsorption of hydrogen at step edges that induces oxygen loss and destabilizes Cu atoms within the step edge, thereby resulting in the retraction motion of atomic steps at the oxide surface.
Authors:
ORCiD logo [1] ;  [1] ;  [1] ; ORCiD logo [1] ;  [1] ; ORCiD logo [2] ; ORCiD logo [3] ; ORCiD logo [1]
  1. State Univ. of New York at Binghamton, Binghamton, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Univ. of Pennsylvania, Philadelphia, PA (United States)
Publication Date:
Report Number(s):
BNL-209150-2018-JAAM
Journal ID: ISSN 1359-7345; CHCOFS
Grant/Contract Number:
SC0012704; SC0001135
Type:
Accepted Manuscript
Journal Name:
ChemComm
Additional Journal Information:
Journal Volume: 54; Journal Issue: 53; Journal ID: ISSN 1359-7345
Publisher:
Royal Society of Chemistry
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; oxide; reduction; transmission electron microscopy; high resolution transmission electron microscopy
OSTI Identifier:
1476762
Alternate Identifier(s):
OSTI ID: 1454633

Chen, Xiaobo, Wu, Dongxiang, Zou, Lianfeng, Yin, Qiyue, Zhang, Hanlei, Zakharov, Dmitri N., Stach, Eric A., and Zhou, Guangwen. In situ atomic-scale observation of inhomogeneous oxide reduction. United States: N. p., Web. doi:10.1039/C8CC03822H.
Chen, Xiaobo, Wu, Dongxiang, Zou, Lianfeng, Yin, Qiyue, Zhang, Hanlei, Zakharov, Dmitri N., Stach, Eric A., & Zhou, Guangwen. In situ atomic-scale observation of inhomogeneous oxide reduction. United States. doi:10.1039/C8CC03822H.
Chen, Xiaobo, Wu, Dongxiang, Zou, Lianfeng, Yin, Qiyue, Zhang, Hanlei, Zakharov, Dmitri N., Stach, Eric A., and Zhou, Guangwen. 2018. "In situ atomic-scale observation of inhomogeneous oxide reduction". United States. doi:10.1039/C8CC03822H.
@article{osti_1476762,
title = {In situ atomic-scale observation of inhomogeneous oxide reduction},
author = {Chen, Xiaobo and Wu, Dongxiang and Zou, Lianfeng and Yin, Qiyue and Zhang, Hanlei and Zakharov, Dmitri N. and Stach, Eric A. and Zhou, Guangwen},
abstractNote = {Here, we report in situ atomic-scale transmission electron microscopy observations of the surface dynamics during Cu2O reduction. We show inhomogeneous oxide reduction caused by the preferential adsorption of hydrogen at step edges that induces oxygen loss and destabilizes Cu atoms within the step edge, thereby resulting in the retraction motion of atomic steps at the oxide surface.},
doi = {10.1039/C8CC03822H},
journal = {ChemComm},
number = 53,
volume = 54,
place = {United States},
year = {2018},
month = {6}
}

Works referenced in this record:

Formation of stable Cu2O from reduction of CuO nanoparticles
journal, April 2006