Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Holly Walen"'
Autor:
Chad D. Yuen, Matthew F. Besser, Holly Walen, Deborah L. Schlagel, Patricia A. Thiel, Thomas A. Lograsso, Emma J. Kwolek
Publikováno v:
Journal of Alloys and Compounds. 789:362-366
Here in we have grown bulk single crystals of NaAu2 for the first time to enable surface studies on the nature of the (111) bulk surface. This intermetallic compound exhibits surprisingly high catalytic activity for CO oxidation, a benchmark reaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f95305f6950fccecd46024e57ced0d4
https://doi.org/10.1016/j.jallcom.2019.02.204
https://doi.org/10.1016/j.jallcom.2019.02.204
Autor:
Holly Walen, Patricia A. Thiel, Hyun Jin Yang, Yousoo Kim, Peter M. Spurgeon, Da-Jiang Liu, Junepyo Oh
Publikováno v:
The Journal of Physical Chemistry B. 122:963-971
Using scanning tunneling microscopy, we characterize the size and bias-dependent shape of sulfur atoms on Cu(100) at low coverage (below 0.1 monolayers) and low temperature (quenched from 300 to 5 K). Sulfur atoms populate the Cu(100) terraces more h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e64f943da894c68c14360df35ea7a6e
https://doi.org/10.1021/acs.jpcb.7b07046
https://doi.org/10.1021/acs.jpcb.7b07046
Autor:
Holly Walen, Yousoo Kim, Junepyo Oh, Hyun Jin Yang, Patricia A. Thiel, Da-Jiang Liu, Peter M. Spurgeon
Publikováno v:
Physical chemistry chemical physics : PCCP. 21(20)
In this paper, we report that S atoms on Ag(100) and Ag(110) exhibit a distinctive range of appearances in scanning tunneling microscopy (STM) images, depending on the sample bias voltage, VS. Progressing from negative to positive VS, the atomic shap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffc3205916185c35c677e0146152c9fb
https://pubmed.ncbi.nlm.nih.gov/31073566
https://pubmed.ncbi.nlm.nih.gov/31073566
Autor:
Okan Deniz, Patricia A. Thiel, Roland Widmer, Wenyu Huang, Chad D. Yuen, Mark Wallingford, C.R. Brundle, Emma J. Kwolek, Deborah L. Schlagel, Oliver Gröning, Holly Walen
Publikováno v:
Surface Science. 650:167-176
NaAu2, in powder form, is known to be an active catalyst for CO oxidation. The goal of the present study is to elucidate the interaction of one reactant, molecular oxygen, with a single-crystal surface of this material, NaAu2(111). Exposing the clean
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86668a05c9443961fcd5f69b9e75b006
https://doi.org/10.1016/j.susc.2015.12.015
https://doi.org/10.1016/j.susc.2015.12.015
Publikováno v:
ChemPhysChem. 17:2137-2145
Using scanning tunneling microscopy (STM), we observed that adsorption of Se on Cu(111) produced islands with a (√3×√3)R30° structure at Se coverages far below the structure's ideal coverage of 1/3 monolayer. On the basis of density functional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3234ca8f165940ba707ebfe56ac359cf
https://doi.org/10.1002/cphc.201600207
https://doi.org/10.1002/cphc.201600207
Publikováno v:
Physical Chemistry Chemical Physics. 18:4891-4901
Using a combination of scanning tunneling microscopy and density functional theory (DFT) calculations, we have identified a set of related Au-S complexes that form on Au(100), when sulfur adsorbs and lifts the hexagonal surface reconstruction. The pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5040649e5e52c98ed8fe026cfafe0e4a
https://doi.org/10.1039/c5cp07817b
https://doi.org/10.1039/c5cp07817b
Publikováno v:
The Journal of Physical Chemistry C. 119:21000-21010
We propose a new model for the c(4 × 2) phase of sulfur adsorbed on Au(110). This is a reconstruction achieved by short-range rearrangements of Au atoms that create a pseudo-4-fold-hollow (p4fh) site for adsorbed sulfur. The model is based partly up
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3af9633c1f0aa3b8edb9e9c979dcec8
https://doi.org/10.1021/acs.jpcc.5b06559
https://doi.org/10.1021/acs.jpcc.5b06559
Autor:
Wenyu Huang, Deborah L. Schlagel, Mark Wallingford, Okan Deniz, Chad D. Yuen, Oliver Gröning, Holly Walen, Roladn Widmer, Patricia A. Thiel, Emma J. Kwolek
Publikováno v:
Inorganic Chemistry. 54:1159-1164
The (111) surface of single-crystal NaAu(2) is a model for catalytically active, powdered NaAu(2). We prepare and characterize this surface with a broad suite of techniques. Preparation in ultrahigh vacuum consists of the traditional approach of ion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b7b11cecf34c1ebe3902184d196ec48
https://doi.org/10.1021/ic5025444
https://doi.org/10.1021/ic5025444
Autor:
Wenyu Huang, Volodymyr Smetana, Patricia A. Thiel, Lin-Lin Wang, Gordon J. Miller, Raghu V. Maligal-Ganesh, Holly Walen, Chaoxian Xiao, Duane D. Johnson
Publikováno v:
Journal of the American Chemical Society. 135:9592-9595
The enhanced stability and modified electronic structure of intermetallic compounds provide discovery of superior catalysts for chemical conversions with high activity, selectivity, and stability. We find that the intermetallic NaAu2 is an active cat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ace5a4eec60a3805f108f94c9f1a3a5
https://doi.org/10.1021/ja403175c
https://doi.org/10.1021/ja403175c