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Title: Morphology of Palladium Thin Film Deposited on a Two-Dimensional Bilayer Aluminosilicate

Abstract

The morphology of a thin palladium film deposited on bilayer Al 0.35Si 0.65O 2/Ru(0001), previously proposed as a two-dimensional zeolite model, is investigated using a set of complementary spectroscopy and microscopy tools. Pd single atoms are known to penetrate the bilayer silica, but when a thick Pd film is deposited on the aluminosilicate case some of the metal remains on top of the bilayer oxide. Annealing this surface results in a decrease in the Pd/Si ratio seen in X-ray photoelectron spectroscopy, indicating either further permeation of Pd, or dewetting of surface Pd to form nanoparticles and leave aluminosilicate exposed. An interesting observation is that two very distinct morphologies are obtained for the film. On small narrow terraces, flat wetting films are produced, while on larger terraces Pd particles leaving a partially exposed bilayer aluminosilicate framework are obtained.

Authors:
 [1];  [2];  [1];  [2];  [3];  [1];  [2];  [4];  [2];  [2];  [2]; ORCiD logo [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Harvard Univ., Cambridge, MA (United States)
  4. Stony Brook Univ., NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1559126
Report Number(s):
BNL-212040-2019-JAAM
Journal ID: ISSN 1022-5528
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Topics in Catalysis
Additional Journal Information:
Journal Name: Topics in Catalysis; Journal ID: ISSN 1022-5528
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Akter, Nusnin, Sadowski, Jerzy T., Zhou, Chen, Zhong, Jian-Qiang, van Spronsen, Matthijs, Xu, Yixin, Tong, Xiao, Kim, Taejin, Tenney, Samuel, Head, Ashley R., Stacchiola, Dario J., and Boscoboinik, J. Anibal. Morphology of Palladium Thin Film Deposited on a Two-Dimensional Bilayer Aluminosilicate. United States: N. p., 2019. Web. doi:10.1007/s11244-019-01193-y.
Akter, Nusnin, Sadowski, Jerzy T., Zhou, Chen, Zhong, Jian-Qiang, van Spronsen, Matthijs, Xu, Yixin, Tong, Xiao, Kim, Taejin, Tenney, Samuel, Head, Ashley R., Stacchiola, Dario J., & Boscoboinik, J. Anibal. Morphology of Palladium Thin Film Deposited on a Two-Dimensional Bilayer Aluminosilicate. United States. doi:10.1007/s11244-019-01193-y.
Akter, Nusnin, Sadowski, Jerzy T., Zhou, Chen, Zhong, Jian-Qiang, van Spronsen, Matthijs, Xu, Yixin, Tong, Xiao, Kim, Taejin, Tenney, Samuel, Head, Ashley R., Stacchiola, Dario J., and Boscoboinik, J. Anibal. Mon . "Morphology of Palladium Thin Film Deposited on a Two-Dimensional Bilayer Aluminosilicate". United States. doi:10.1007/s11244-019-01193-y.
@article{osti_1559126,
title = {Morphology of Palladium Thin Film Deposited on a Two-Dimensional Bilayer Aluminosilicate},
author = {Akter, Nusnin and Sadowski, Jerzy T. and Zhou, Chen and Zhong, Jian-Qiang and van Spronsen, Matthijs and Xu, Yixin and Tong, Xiao and Kim, Taejin and Tenney, Samuel and Head, Ashley R. and Stacchiola, Dario J. and Boscoboinik, J. Anibal},
abstractNote = {The morphology of a thin palladium film deposited on bilayer Al0.35Si0.65O2/Ru(0001), previously proposed as a two-dimensional zeolite model, is investigated using a set of complementary spectroscopy and microscopy tools. Pd single atoms are known to penetrate the bilayer silica, but when a thick Pd film is deposited on the aluminosilicate case some of the metal remains on top of the bilayer oxide. Annealing this surface results in a decrease in the Pd/Si ratio seen in X-ray photoelectron spectroscopy, indicating either further permeation of Pd, or dewetting of surface Pd to form nanoparticles and leave aluminosilicate exposed. An interesting observation is that two very distinct morphologies are obtained for the film. On small narrow terraces, flat wetting films are produced, while on larger terraces Pd particles leaving a partially exposed bilayer aluminosilicate framework are obtained.},
doi = {10.1007/s11244-019-01193-y},
journal = {Topics in Catalysis},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {8}
}

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