scholarly journals Impact of Catalyst Ink Dispersing Methodology on Fuel Cell Performance Using in-Situ X-ray Scattering

2019 ◽  
Vol 2 (9) ◽  
pp. 6417-6427 ◽  
Author(s):  
Min Wang ◽  
Jae Hyung Park ◽  
Sadia Kabir ◽  
K. C. Neyerlin ◽  
Nancy N. Kariuki ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Cell Performance ◽  
X Ray ◽  
Fuel Cell Performance ◽  
X Ray Scattering ◽  
Ray Scattering

In Situ Anomalous Small-Angle X-ray Scattering Study of Fuel Cell Catalyst Degradation in Aqueous and Membrane Electrode Assembly Environments

2013 ◽  
Vol 50 (2) ◽  
pp. 1515-1521
Author(s):  
J. A. Gilbert ◽  
N. N. Kariuki ◽  
A. J. Kropf ◽  
D. Morgan ◽  
D. J. Myers ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Small Angle ◽  
Membrane Electrode Assembly ◽  
Membrane Electrode ◽  
X Ray ◽  
Fuel Cell Catalyst ◽  
X Ray Scattering ◽  
Scattering Study ◽  
Ray Scattering

In Situ Anomalous Small-Angle X-ray Scattering Studies of Platinum Nanoparticle Fuel Cell Electrocatalyst Degradation

2012 ◽  
Vol 134 (36) ◽  
pp. 14823-14833 ◽  
Author(s):  
James A. Gilbert ◽  
Nancy N. Kariuki ◽  
Ram Subbaraman ◽  
A. Jeremy Kropf ◽  
Matt C. Smith ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Small Angle ◽  
Platinum Nanoparticle ◽  
X Ray ◽  
X Ray Scattering ◽  
Electrocatalyst Degradation ◽  
Fuel Cell Electrocatalyst ◽  
Ray Scattering

A Revised O2 Reduction Model in Li-O2 Batteries as Revealed by in Situ Small Angle X-Ray Scattering

2019 ◽  
Author(s):  
Christian Prehal ◽  
Aleksej Samojlov ◽  
Manfred Nachtnebel ◽  
Manfred Kriechbaum ◽  
Heinz Amenitsch ◽  
...  
Keyword(s):  
Small Angle ◽  
Wide Angle ◽  
Reduction Mechanism ◽  
Reduction Model ◽  
X Ray ◽  
X Ray Scattering ◽  
O2 Reduction ◽  
Ray Scattering

<b>Here we use in situ small and wide angle X-ray scattering to elucidate unexpected mechanistic insights of the O2 reduction mechanism in Li-O2 batteries.<br></b>

In situ Time-Resolved Small-Angle X-ray Scattering Reveals the Formation Kinetics of Polyelectrolyte Complex Micelles

2019 ◽  
Author(s):  
Hao Wu ◽  
Jeffrey Ting ◽  
Siqi Meng ◽  
Matthew Tirrell
Keyword(s):  
Small Angle ◽  
Self Assembly ◽  
Electrostatic Interactions ◽  
Polyelectrolyte Complex ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Kinetics Of ◽  
Ray Scattering

We have directly observed the <i>in situ</i> self-assembly kinetics of polyelectrolyte complex (PEC) micelles by synchrotron time-resolved small-angle X-ray scattering, equipped with a stopped-flow device that provides millisecond temporal resolution. This work has elucidated one general kinetic pathway for the process of PEC micelle formation, which provides useful physical insights for increasing our fundamental understanding of complexation and self-assembly dynamics driven by electrostatic interactions that occur on ultrafast timescales.

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