Keegan M. Caldwell | Researchain

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Featured researches published by Keegan M. Caldwell.

Journal of Physical Chemistry C | 2013

Analyzing the Influence of H3PO4 as Catalyst Poison in High Temperature PEM Fuel Cells Using in-operando X-ray Absorption Spectroscopy

Sebastian Kaserer; Keegan M. Caldwell; David E. Ramaker; Christina Roth

ACS Catalysis | 2015

Improved Oxygen Reduction Activity and Durability of Dealloyed PtCox Catalysts for Proton Exchange Membrane Fuel Cells: Strain, Ligand, and Particle Size Effects

Qingying Jia; Keegan M. Caldwell; Kara Strickland; Joseph M. Ziegelbauer; Zhongyi Liu; Zhiqiang Yu; David E. Ramaker; Sanjeev Mukerjee

ACS Catalysis | 2016

Circumventing Metal Dissolution Induced Degradation of Pt-Alloy Catalysts in Proton Exchange Membrane Fuel Cells: Revealing the Asymmetric Volcano Nature of Redox Catalysis

Qingying Jia; Jingkun Li; Keegan M. Caldwell; David E. Ramaker; Joseph M. Ziegelbauer; Ratandeep S. Kukreja; Anusorn Kongkanand; Sanjeev Mukerjee

Electrochimica Acta | 2013

Structure–property–activity correlations of Pt-bimetallic nanoparticles: A theoretical study

Qingying Jia; Carlo U. Segre; David E. Ramaker; Keegan M. Caldwell; Matthew Trahan; Sanjeev Mukerjee

Journal of Physical Chemistry C | 2015

Spectroscopic in situ Measurements of the Relative Pt Skin Thicknesses and Porosities of Dealloyed PtMn (Ni, Co) Electrocatalysts

Keegan M. Caldwell; David E. Ramaker; Qingying Jia; Sanjeev Mukerjee; Joseph M. Ziegelbauer; Ratandeep S. Kukreja; Anusorn Kongkanand

Journal of The Electrochemical Society | 2014

The Role of OOH Binding Site and Pt Surface Structure on ORR Activities

Qingying Jia; Keegan M. Caldwell; Joseph M. Ziegelbauer; Anusorn Kongkanand; Frederick T. Wagner; Sanjeev Mukerjee; David E. Ramaker

Journal of Physical Chemistry C | 2014

In Situ Spectroscopic Evidence for Ordered Core–Ultrathin Shell Pt1Co1 Nanoparticles with Enhanced Activity and Stability as Oxygen Reduction Electrocatalysts

Qingying Jia; Keegan M. Caldwell; David E. Ramaker; Joseph M. Ziegelbauer; Zhongyi Liu; Zhiqiang Yu; Matthew Trahan; Sanjeev Mukerjee

ChemElectroChem | 2015

Following Adsorbate Coverage on Anodes of High‐Temperature Polymer Electrolyte Membrane Fuel Cells in the Presence of CO and H2O by using In Operando X‐ray Absorption Spectroscopy

Keegan M. Caldwell; Sebastian Kaserer; Christina Roth; David E. Ramaker

228th ECS Meeting (October 11-15, 2015) | 2015

The Power of in-Situ Studies: How X-ray Absorption Spectroscopy Can Help to Develop PEMFC Catalysts with Increased Activity and Stability

Christina Roth; Sebastian Kaserer; Claudia Brieger; Keegan M. Caldwell; Julia Melke; David E. Ramaker

225th ECS Meeting (May 11-15, 2014) | 2014

In-Situ X-ray Absorption Spectroscopy Elucidating Mechanisms in HT-PEM Fuel Cells

Christina Roth; Sebastian Kaserer; Keegan M. Caldwell; David E. Ramaker

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David E. Ramaker

George Washington University

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Qingying Jia

Northeastern University

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Joseph M. Ziegelbauer

Northeastern University

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Sanjeev Mukerjee

Sandia National Laboratories

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Sanjeev Mukerjee

Sandia National Laboratories

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Anusorn Kongkanand

University of Notre Dame

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Christina Roth

Free University of Berlin

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Sebastian Kaserer

Technische Universität Darmstadt

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Matthew Trahan

Northeastern University

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Christopher E. Carlton

Massachusetts Institute of Technology

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