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

Nusnin Akter; Jerzy T. Sadowski; Chen Zhou; Jian Qiang Zhong; Matthijs van Spronsen; Yixin Xu; Xiao Tong; Taejin Kim; Samuel Tenney; Ashley R. Head; Dario J. Stacchiola; J. Anibal Boscoboinik

doi:10.1007/s11244-019-01193-y

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

Nusnin Akter
, Jerzy T. Sadowski
, Chen Zhou
, Jian Qiang Zhong
, Matthijs van Spronsen
, Yixin Xu
, Xiao Tong
, Taejin Kim
, Samuel Tenney
, Ashley R. Head
, Dario J. Stacchiola
, J. Anibal Boscoboinik

Materials Science and Engineering

Stony Brook University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Abstract: The morphology of a thin palladium film deposited on bilayer Al_0.35Si_0.65O₂/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. Graphic Abstract: [Figure not available: see fulltext.].

Original language	English
Pages (from-to)	1067-1075
Number of pages	9
Journal	Topics in Catalysis
Volume	62
Issue number	12-16
DOIs	https://doi.org/10.1007/s11244-019-01193-y
State	Published - Sep 1 2019

Keywords

2D-silica
2D-zeolite
Catalysis
Metal-support interaction
Surface science
Thin film

Access to Document

10.1007/s11244-019-01193-y

Cite this

@article{f27469e90c634a40960009de3203d502,

title = "Morphology of Palladium Thin Film Deposited on a Two-Dimensional Bilayer Aluminosilicate",

abstract = "Abstract: 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. Graphic Abstract: [Figure not available: see fulltext.].",

keywords = "2D-silica, 2D-zeolite, Catalysis, Metal-support interaction, Surface science, Thin film",

author = "Nusnin Akter and Sadowski, \{Jerzy T.\} and Chen Zhou and Zhong, \{Jian Qiang\} and \{van Spronsen\}, Matthijs and Yixin Xu and Xiao Tong and Taejin Kim and Samuel Tenney and Head, \{Ashley R.\} and Stacchiola, \{Dario J.\} and Boscoboinik, \{J. Anibal\}",

note = "Publisher Copyright: {\textcopyright} 2019, This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply.",

year = "2019",

month = sep,

day = "1",

doi = "10.1007/s11244-019-01193-y",

language = "English",

volume = "62",

pages = "1067--1075",

journal = "Topics in Catalysis",

issn = "1022-5528",

publisher = "Springer",

number = "12-16",

}

TY - JOUR

T1 - Morphology of Palladium Thin Film Deposited on a Two-Dimensional Bilayer Aluminosilicate

AU - Akter, Nusnin

AU - Sadowski, Jerzy T.

AU - Zhou, Chen

AU - Zhong, Jian Qiang

AU - van Spronsen, Matthijs

AU - Xu, Yixin

AU - Tong, Xiao

AU - Kim, Taejin

AU - Tenney, Samuel

AU - Head, Ashley R.

AU - Stacchiola, Dario J.

AU - Boscoboinik, J. Anibal

PY - 2019/9/1

Y1 - 2019/9/1

N2 - Abstract: 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. Graphic Abstract: [Figure not available: see fulltext.].

AB - Abstract: 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. Graphic Abstract: [Figure not available: see fulltext.].

KW - 2D-silica

KW - 2D-zeolite

KW - Catalysis

KW - Metal-support interaction

KW - Surface science

KW - Thin film

UR - https://www.scopus.com/pages/publications/85071227398

U2 - 10.1007/s11244-019-01193-y

DO - 10.1007/s11244-019-01193-y

M3 - Article

SN - 1022-5528

VL - 62

SP - 1067

EP - 1075

JO - Topics in Catalysis

JF - Topics in Catalysis

IS - 12-16

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this