Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Daniel J. Groom"'
Autor:
Nagappan Ramaswamy, Ratandeep S. Kukreja, Paulo J. Ferreira, Swami Kumaraguru, Kang Yu, Daniel J. Groom, Wenbin Gu
Publikováno v:
Journal of The Electrochemical Society. 168:024519
The durability of carbon supported PtCo-alloy based nanoparticle catalysts play a key role in the longevity of proton-exchange membrane fuel cells (PEMFC) in electric vehicle applications. To improve its durability, it is important to understand and
Autor:
Deborah J. Myers, Kang Yu, A. Jeremy Kropf, Daniel J. Groom, Dane Morgan, James A. Gilbert, Xiaoping Wang, Paulo J. Ferreira, Nancy Kariuki
Publikováno v:
Electrochimica Acta. 173:223-234
The evolution of Pt nanoparticle cathode electrocatalyst size distribution in a polymer electrolyte membrane fuel cell (PEMFC) was followed during accelerated stress tests using in-operando anomalous small-angle X-ray scattering (ASAXS). This evoluti
Publikováno v:
Ultramicroscopy. 194
Transmission electron microscopy (TEM) represents a unique and powerful modality for capturing spatial features of nanoparticles, such as size and shape. However, poor statistics arise as a key obstacle, due to the challenge in accurately and automat
Autor:
Mallika Gummalla, Zhiwei Yang, Daniel J. Groom, Sarah C. Ball, Paulo J. Ferreira, Stephanie Matyas, S. Rajasekhara
Publikováno v:
ECS Transactions. 41:933-936
Proton exchange membrane fuel cells (PEMFCs) are alternative high efficiency energy conversion devices considered for automotive and stationary applications. However, the durability of the fuel cell materials used in PEMFCs falls short of the 5,000 o
Publikováno v:
Microscopy and Microanalysis. 22:548-549
Autor:
Somaye Rasouli, A. Godoy, Daniel J. Groom, Alan C. Bovik, Paulo J. Ferreira, Kang Yu, Deborah J. Myers, Naotoshi Nakashima
Publikováno v:
Microscopy and Microanalysis. 22:1280-1281
Autor:
Paulo J. Ferreira, Sarah C. Ball, Deborah J. Myers, Zhiwei Yang, Daniel J. Groom, Xiaohua Wang, M. Gummalla, Kang Yu
Publikováno v:
Microscopy and Microanalysis. 20:482-483
Five membrane-electrode assemblies (MEAs) with different average sizes of platinum (Pt) nanoparticles (2.2, 3.5, 5.0, 6.7, and 11.3 nm) in the cathode were analyzed before and after potential cycling (0.6 to 1.0 V, 50 mV/s) by transmission electron m
Autor:
Z Yang, Paulo J. Ferreira, S Matyas, Sarah C. Ball, M. Gummalla, Daniel J. Groom, S. Rajasekhara
Publikováno v:
Microscopy and Microanalysis. 17:1616-1617
Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.