Samuel Tenney

Brookhaven National Laboratory

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Jerzy T. Sadowski

Brookhaven National Laboratory

J. Anibal Boscoboinik

Brookhaven National Laboratory

Darı́o Stacchiola

Brookhaven National Laboratory

Ashley R. Head

Brookhaven National Laboratory

Nusnin Akter

Stony Brook University

M. A. Van Spronsen

Diamond Light Source

Jian‐Qiang Zhong

Zhejiang University of Technology

Yixin Xu

Brookhaven National Laboratory

Taejin Kim

Korea Institute of Science and Technology

Xiao Tong

Brookhaven National Laboratory

Cooperative Institutions

Brookhaven National Laboratory

Stony Brook University

Center for Functional Nanomaterials

Upton Hospital

University of South Carolina

Lawrence Berkeley National Laboratory

Binghamton University

State University of New York

United States Air Force Research Laboratory

Chinese Academy of Sciences

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Oxidation of the Ru(0001) surface covered by weakly bound, ultrathin silicate films

Surface Science (2015)

Emre Emmez J. Anibal Boscoboinik Samuel Tenney Peter Sutter Shamil Shaikhutdinov

Passivation

10.1016/j.susc.2015.06.019

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Citations (29)

20180614_XPEEM_2CA_1FA_30um_380eV_41eV_Pd3d_2.dat

Harvard Dataverse (2019)

Nusnin Akter Jerzy T. Sadowski Chen Zhou Jian‐Qiang Zhong M. A. Van Spronsen

:unav

10.7910/dvn/wkv3yk/2acdkn

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Experiment 2017-10-23_09h33m15s.sle

Harvard Dataverse (2019)

Nusnin Akter Jerzy T. Sadowski Chen Zhou Jian‐Qiang Zhong M. A. Van Spronsen

:unav

10.7910/dvn/wkv3yk/znhhcn

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Oxidation of palladium on Au(111) and ZnO(0001) supports

The Journal of Chemical Physics (2014)

James Lallo Samuel Tenney Alan R. Kramer Peter Sutter Matthias Batzill

The oxidation behavior of supported Pd-deposits on Au(111) and ZnO(0001) single crystals has been studied by x-ray photoemission spectroscopy (XPS). Oxidation has been carried out ex situ in a high-pressure cell and subsequent vacuum-transfer and characterization by ultra-high vacuum XPS, as well as in situ characterization by synchrotron based near ambient pressure XPS. On Au(111) alloying of Pd with the substrate competes with oxidation and only for sufficiently thick Pd films oxidation is obtained. For Pd deposits on ZnO the oxidation condition depends on the amount of deposited Pd. Thicker Pd-deposits behave similar to bulk Pd-samples, while for thinner films the oxidation temperatures may be lowered. Interestingly, for very small amounts of Pd, in situ XPS shows full oxidation at room temperature and at less than 0.6 mbar O2 pressure. This indicates lowering of the kinetic barriers for oxidation of very small supported Pd-clusters. The formed oxide is, however, not stable in ultra high vacuum and a slow reduction is observed. The instability of this oxide in UHV indicates that the formed Pd-oxide at the interface to ZnO may have different chemical properties compared to bulk PdO or surface oxides on Pd.

Ambient pressure

Ultra-high vacuum

10.1063/1.4898086

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20180613_LEED_2FA_60eV_area2_1 2578 M.jpg

Harvard Dataverse (2019)

Nusnin Akter Jerzy T. Sadowski Zhou Chen Jian‐Qiang Zhong M. A. Van Spronsen

:unav

10.7910/dvn/wkv3yk/kdi16x

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