Growth and characterization of barium oxide nanoclusters on YSZ(111)

P. Nachimuthu; Y. J. Kim; S. V N T Kuchibhatla; Z. Q. Yu; W. Jiang; M. H. Engelhard; V. Shutthanandan; János Szanyi; S. Thevuthasan

doi:10.1021/jp9020068

Growth and characterization of barium oxide nanoclusters on YSZ(111)

P. Nachimuthu, Y. J. Kim, S. V N T Kuchibhatla, Z. Q. Yu, W. Jiang, M. H. Engelhard, V. Shutthanandan, János Szanyi, S. Thevuthasan

Research output: Contribution to journal › Article

11 Citations (Scopus)

Abstract

Barium oxide (BaO) was grown on a yttria-stabilized zirconia (YSZ) substrate by oxygen plasma-assisted molecular beam epitaxy. In situ reflection high-energy electron diffraction, ex situ X-ray diffraction (XRD), atomic force microscopy, and X-ray photoelectron spectroscopy (XPS) have confirmed that BaO grows as clusters on YSZ(111). During and following growth under ultrahigh vacuum conditions, we found BaO remained in single phase. When exposed to ambient conditions, the clusters transformed to BaCO₃ and/or Ba(OH) ₂ H₂O. However, in a few attempts of BaO growth, XRD results show a fairly single-phase cubic BaO with a lattice constant of 0.5418(1) nm. XPS results show that exposing BaO clusters to ambient conditions resulted in the formation of BaCO₃ on the surface and partly Ba(OH) ₂ throughout the bulk. On the basis of the observations, it is concluded that the BaO nanoclusters grown on YSZ(111) are highly reactive in ambient conditions.

Original language	English
Pages (from-to)	14324-14328
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	113
Issue number	32
DOIs	https://doi.org/10.1021/jp9020068
Publication status	Published - 13 Aug 2009
Externally published	Yes

Fingerprint

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Electronic, Optical and Magnetic Materials
Surfaces, Coatings and Films
Energy(all)

Cite this

Nachimuthu, P., Kim, Y. J., Kuchibhatla, S. V. N. T., Yu, Z. Q., Jiang, W., Engelhard, M. H., Shutthanandan, V., Szanyi, J., & Thevuthasan, S. (2009). Growth and characterization of barium oxide nanoclusters on YSZ(111). Journal of Physical Chemistry C, 113(32), 14324-14328. https://doi.org/10.1021/jp9020068

@article{848f4d27c5694fad81993b323ae5455f,

title = "Growth and characterization of barium oxide nanoclusters on YSZ(111)",

abstract = "Barium oxide (BaO) was grown on a yttria-stabilized zirconia (YSZ) substrate by oxygen plasma-assisted molecular beam epitaxy. In situ reflection high-energy electron diffraction, ex situ X-ray diffraction (XRD), atomic force microscopy, and X-ray photoelectron spectroscopy (XPS) have confirmed that BaO grows as clusters on YSZ(111). During and following growth under ultrahigh vacuum conditions, we found BaO remained in single phase. When exposed to ambient conditions, the clusters transformed to BaCO3 and/or Ba(OH) 2 H2O. However, in a few attempts of BaO growth, XRD results show a fairly single-phase cubic BaO with a lattice constant of 0.5418(1) nm. XPS results show that exposing BaO clusters to ambient conditions resulted in the formation of BaCO3 on the surface and partly Ba(OH) 2 throughout the bulk. On the basis of the observations, it is concluded that the BaO nanoclusters grown on YSZ(111) are highly reactive in ambient conditions.",

author = "P. Nachimuthu and Kim, {Y. J.} and Kuchibhatla, {S. V N T} and Yu, {Z. Q.} and W. Jiang and Engelhard, {M. H.} and V. Shutthanandan and J{\'a}nos Szanyi and S. Thevuthasan",

year = "2009",

month = aug

day = "13",

doi = "10.1021/jp9020068",

language = "English",

volume = "113",

pages = "14324--14328",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

number = "32",

}

TY - JOUR

T1 - Growth and characterization of barium oxide nanoclusters on YSZ(111)

AU - Nachimuthu, P.

AU - Kim, Y. J.

AU - Kuchibhatla, S. V N T

AU - Yu, Z. Q.

AU - Jiang, W.

AU - Engelhard, M. H.

AU - Shutthanandan, V.

AU - Szanyi, János

AU - Thevuthasan, S.

PY - 2009/8/13

Y1 - 2009/8/13

N2 - Barium oxide (BaO) was grown on a yttria-stabilized zirconia (YSZ) substrate by oxygen plasma-assisted molecular beam epitaxy. In situ reflection high-energy electron diffraction, ex situ X-ray diffraction (XRD), atomic force microscopy, and X-ray photoelectron spectroscopy (XPS) have confirmed that BaO grows as clusters on YSZ(111). During and following growth under ultrahigh vacuum conditions, we found BaO remained in single phase. When exposed to ambient conditions, the clusters transformed to BaCO3 and/or Ba(OH) 2 H2O. However, in a few attempts of BaO growth, XRD results show a fairly single-phase cubic BaO with a lattice constant of 0.5418(1) nm. XPS results show that exposing BaO clusters to ambient conditions resulted in the formation of BaCO3 on the surface and partly Ba(OH) 2 throughout the bulk. On the basis of the observations, it is concluded that the BaO nanoclusters grown on YSZ(111) are highly reactive in ambient conditions.

AB - Barium oxide (BaO) was grown on a yttria-stabilized zirconia (YSZ) substrate by oxygen plasma-assisted molecular beam epitaxy. In situ reflection high-energy electron diffraction, ex situ X-ray diffraction (XRD), atomic force microscopy, and X-ray photoelectron spectroscopy (XPS) have confirmed that BaO grows as clusters on YSZ(111). During and following growth under ultrahigh vacuum conditions, we found BaO remained in single phase. When exposed to ambient conditions, the clusters transformed to BaCO3 and/or Ba(OH) 2 H2O. However, in a few attempts of BaO growth, XRD results show a fairly single-phase cubic BaO with a lattice constant of 0.5418(1) nm. XPS results show that exposing BaO clusters to ambient conditions resulted in the formation of BaCO3 on the surface and partly Ba(OH) 2 throughout the bulk. On the basis of the observations, it is concluded that the BaO nanoclusters grown on YSZ(111) are highly reactive in ambient conditions.

UR - http://www.scopus.com/inward/record.url?scp=68749098264&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=68749098264&partnerID=8YFLogxK

U2 - 10.1021/jp9020068

DO - 10.1021/jp9020068

M3 - Article

AN - SCOPUS:68749098264

VL - 113

SP - 14324

EP - 14328

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 32

ER -

Access to Document

10.1021/jp9020068