Publications by authors named "DE Ramaker"

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Bromomethane Contamination in the Cathode of Proton Exchange Membrane Fuel Cells.
Yunfeng Zhai, Olga Baturina, David E Ramaker, Erik Farquhar, Jean St-Pierre

Electrochim Acta· September 2016

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Spectroscopic Measurements of the Relative Pt Skin Thicknesses and Porosities of Dealloyed PtM (Ni, Co) Electrocatalysts.
Keegan M Caldwell, David E Ramaker, Qingying Jia, Sanjeev Mukerjee, Joseph M Ziegelbauer

J Phys Chem C Nanomater Interfaces· January 2015

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Improved Oxygen Reduction Activity and Durability of Dealloyed PtCo Catalysts for Proton Exchange Membrane Fuel Cells: Strain, Ligand, and Particle Size Effects.
Qingying Jia, Keegan Caldwell, Kara Strickland, Joseph M Ziegelbauer, Zhongyi Liu, David E Ramaker

ACS Catal· January 2015

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Following ORR intermediates adsorbed on a Pt cathode catalyst during break-in of a PEM fuel cell by in operando X-ray absorption spectroscopy.
D E Ramaker, A Korovina, V Croze, J Melke, C Roth

Phys Chem Chem Phys· July 2014

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The Role of OOH Binding Site and Pt Surface Structure on ORR Activities.
Qingying Jia, Keegan Caldwell, Joseph M Ziegelbauer, Anusorn Kongkanand, Frederick T Wagner, David E Ramaker

J Electrochem Soc· January 2014

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The atomic AXAFS and Delta(mu) XANES techniques as applied to heterogeneous catalysis and electrocatalysis.
D E Ramaker, D C Koningsberger

Phys Chem Chem Phys· June 2010

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Structure of ethene adsorption sites on supported metal catalysts from in situ XANES Analysis.
Eveline Bus, David E Ramaker, Jeroen A van Bokhoven

J Am Chem Soc· July 2007

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Triarylphosphine-stabilized platinum nanoparticles in three-dimensional nanostructured films as active electrocatalysts.
Cynthia N Kostelansky, Jeremy J Pietron, Mu-San Chen, Walter J Dressick, Karen E Swider-Lyons, David E Ramaker

J Phys Chem B· November 2006

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Determination of O[H] and CO coverage and adsorption sites on PtRu electrodes in an operating PEM fuel cell.
Christina Roth, Nathalie Benker, Thorsten Buhrmester, Marian Mazurek, Matthias Loster, David E Ramaker

J Am Chem Soc· October 2005

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Determination of O and OH adsorption sites and coverage in situ on Pt electrodes from Pt L(2,3) X-ray absorption spectroscopy.
M Teliska, W E O'Grady, D E Ramaker

J Phys Chem B· April 2005

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Strong support effects on the insulator to metal transition in supported Pt clusters as observed by X-ray absorption spectroscopy.
David E Ramaker, Michiel K Oudenhuijzen, Diederick C Koningsberger

J Phys Chem B· March 2005

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Three-site model for hydrogen adsorption on supported platinum particles: influence of support ionicity and particle size on the hydrogen coverage.
Michiel K Oudenhuijzen, Jeroen A van Bokhoven, Jeffrey T Miller, David E Ramaker, Diederik C Koningsberger

J Am Chem Soc· February 2005

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Probing the molecular orbitals and charge redistribution in organometallic (PP)Pd(XX) complexes. A Pd K-edge XANES study.
Moniek Tromp, Jeroen A van Bokhoven, Gino P F van Strijdonck, Piet W N M van Leeuwen, Diek C Koningsberger, David E Ramaker

J Am Chem Soc· January 2005

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AXAFS as a probe of charge redistribution within organometallic complexes.
Moniek Tromp, Jeroen A Van Bokhoven, Martijn Q Slagt, Robertus J M Klein Gebbink, Gerard Van Koten, David E Ramaker

J Am Chem Soc· April 2004

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Comment on "Effect of hydrogen adsorption on the X-ray absorption spectra of small Pt clusters".
D E Ramaker, D C Koningsberger

Phys Rev Lett· September 2002

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In situ XAFS studies of the adsorption of benzene in zeolite beta: differences between fluorescence and electron yield detection.
J A van Bokhoven, H Sambe, D E Ramaker, D C Koningsberger

J Synchrotron Radiat· May 1999

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Shape resonances and EXAFS scattering in the Pt L2,3 XANES from a Pt electrode.
W E O'Grady, D E Ramaker

J Synchrotron Radiat· May 1999

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'Atomic' XAFS as a probe of electronic structure.
D E Ramaker, W E O'Grady

J Synchrotron Radiat· May 1999

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Structural determination of beta -SiC(100)-c(2 x 2) from C-1s surface-core-exciton and Si-2p absorption.
JP Long, VM Bermudez, DE Ramaker

Phys Rev Lett· February 1996

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Two-center two-electron excitations identified in NEXAFS for solid Ne.
H Sambe, X Qian, DE Ramaker

Phys Rev B Condens Matter· January 1996

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Theoretical study on Cl L23 NEXAFS and UV absorption data for metal chlorides.
X Qian, H Sambe, DE Ramaker

Phys Rev B Condens Matter· December 1995

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Structural characterization of low energy Auger electron and photoelectron scattering.
YU Idzerda, DE Ramaker

Phys Rev Lett· September 1992

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Absolute cross section for dissociative electron attachment in O2 condensed on Kr film.
H Sambe, DE Ramaker, M Deschenes, AD Bass, L Sanche

Phys Rev Lett· January 1990

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Forbidden electron attachment in O2.
H Sambe, DE Ramaker

Phys Rev A Gen Phys· October 1989

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Utilization of a Hubbard U model to understand the valence-band photoelectron data for the high-temperature superconductors.
DE Ramaker

Phys Rev B Condens Matter· December 1988

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