Direct observations of liquid water formation at nano- and micro-scale in platinum group metal-free electrodes by operando X-ray computed tomography

Normile, Stanley J.; Sabarirajan, Dinesh C.; Calzada, Osvaldo; De Andrade, Vincent; Xiao, Xianghui; Mandal, Pratiti; Parkinson, Dilworth Y.; Serov, Alexey; Atanassov, Plamen; Zenyuk, Iryna V.

doi:10.1016/j.mtener.2018.05.011

Title: Direct observations of liquid water formation at nano- and micro-scale in platinum group metal-free electrodes by operando X-ray computed tomography

Full Record
Other Related Research

Authors:

; Sabarirajan, Dinesh C.; Calzada, Osvaldo; De Andrade, Vincent; Xiao, Xianghui;

;

; Serov, Alexey; Atanassov, Plamen; Zenyuk, Iryna V.

Publication Date:: Sat Sep 01 00:00:00 EDT 2018

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1548242

Grant/Contract Number:: AC02-05CH11231; AC02-06CH11357

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Materials Today Energy

Additional Journal Information:: Journal Name: Materials Today Energy Journal Volume: 9 Journal Issue: C; Journal ID: ISSN 2468-6069

Publisher:: Elsevier

Country of Publication:: United Kingdom

Language:: English

Citation Formats


                    Normile, Stanley J., Sabarirajan, Dinesh C., Calzada, Osvaldo, De Andrade, Vincent, Xiao, Xianghui, Mandal, Pratiti, Parkinson, Dilworth Y., Serov, Alexey, Atanassov, Plamen, and Zenyuk, Iryna V. Direct observations of liquid water formation at nano- and micro-scale in platinum group metal-free electrodes by operando X-ray computed tomography.  United Kingdom: N. p., 2018. 
Web.  doi:10.1016/j.mtener.2018.05.011.

Copy to clipboard


                    Normile, Stanley J., Sabarirajan, Dinesh C., Calzada, Osvaldo, De Andrade, Vincent, Xiao, Xianghui, Mandal, Pratiti, Parkinson, Dilworth Y., Serov, Alexey, Atanassov, Plamen, & Zenyuk, Iryna V. Direct observations of liquid water formation at nano- and micro-scale in platinum group metal-free electrodes by operando X-ray computed tomography.  United Kingdom.  https://doi.org/10.1016/j.mtener.2018.05.011

Copy to clipboard


                    Normile, Stanley J., Sabarirajan, Dinesh C., Calzada, Osvaldo, De Andrade, Vincent, Xiao, Xianghui, Mandal, Pratiti, Parkinson, Dilworth Y., Serov, Alexey, Atanassov, Plamen, and Zenyuk, Iryna V. Sat .  
"Direct observations of liquid water formation at nano- and micro-scale in platinum group metal-free electrodes by operando X-ray computed tomography".  United Kingdom.  https://doi.org/10.1016/j.mtener.2018.05.011.

Copy to clipboard


                    
@article{osti_1548242,

  title        = {Direct observations of liquid water formation at nano- and micro-scale in platinum group metal-free electrodes by operando X-ray computed tomography},

  author       = {Normile, Stanley J. and Sabarirajan, Dinesh C. and Calzada, Osvaldo and De Andrade, Vincent and Xiao, Xianghui and Mandal, Pratiti and Parkinson, Dilworth Y. and Serov, Alexey and Atanassov, Plamen and Zenyuk, Iryna V.},

  abstractNote = {},

  doi          = {10.1016/j.mtener.2018.05.011},

  journal      = {Materials Today Energy},

  number       = C,

  volume       = 9,

  place        = {United Kingdom},

  year         = {Sat Sep 01 00:00:00 EDT 2018},

  month        = {Sat Sep 01 00:00:00 EDT 2018}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Publisher's Version of Record
https://doi.org/10.1016/j.mtener.2018.05.011

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 44 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Direct Simulations of Coupled Transport and Reaction on Nano-Scale X-Ray Computed Tomography Images of Platinum Group Metal-Free Catalyst Cathodes

Journal Article Ogawa, S. ; Komini Babu, S. ; Chung, H. T. ; ... - ECS Transactions (Online)

The nano/micro-scale geometry of polymer electrolyte fuel cell (PEFC) catalyst layers critically affects cell performance. The small length scales and complex structure of these composite layers make it challenging to analyze cell performance and physics at the particle scale by experiment. We present a computational method to simulate transport and chemical reaction phenomena at the pore/particle-scale and apply it to a PEFC cathode with platinum group metal free (PGM-free) catalyst. Here, we numerically solve the governing equations for the physics with heterogeneous oxygen diffusion coefficient and proton conductivity evaluated using the actual electrode structure and ionomer distribution obtained using nano-scalemore »« less
Cited by 4
https://doi.org/10.1149/07514.0139ecst

Full Text Available
Development of low temperature fuel cell holders for Operando x-ray micro and nano computed tomography to visualize water distribution

Journal Article Kulkarni, Devashish ; Normile, Stanley J. ; Connolly, Liam G. ; ... - J. Phys. -- Energy
https://doi.org/10.1088/2515-7655/abb783
Development of low temperature fuel cell holders for Operando x-ray micro and nano computed tomography to visualize water distribution

Journal Article Kulkarni, Devashish ; Normile, Stanley J. ; Connolly, Liam G. ; ... - JPhys Energy

Abstract Synchrotron x-ray imaging techniques, like x-ray computed tomography (CT) and radiography have proven instrumental in expanding the communities knowledge of complex transport and reaction kinetics in electrochemical devices such as fuel cells and electrolyzers. This work presents the development of novel x-ray CT imaging techniques for operando visualization of water within low temperature fuel cells at spatial resolutions spanning the micro and nano scales. The design of operando sample holders, for both micro x-ray CT and nano CT experiments is described in depth, and prototypes of these sample holders were evaluated across a set of requirements, the most importantmore »« less
https://doi.org/10.1088/2515-7655/abb783
Assessing failure in epitaxially encapsulated micro-scale sensors using micro and nano x-ray computed tomography

Journal Article Comenencia Ortiz, Lizmarie ; Heinz, David B. ; Flader, Ian B. ; ... - MRS Communications

Millions of micro electro mechanical system sensors are fabricated each year using an ultra-clean process that allows for a vacuum-encapsulated cavity. These devices have a multi-layer structure that contains hidden layers with highly doped silicon, which makes common imaging techniques ineffective. Thus, examining device features post-fabrication, and testing, is a significant challenge. Here in this paper, we use a combination of micro- and nano-scale x-ray computed tomography to study device features and assess failure mechanisms in such devices without destroying the ultra-clean cavity. This provides a unique opportunity to examine surfaces and trace failure mechanisms to specific steps in themore » fabrication process.« less
Cited by 2
https://doi.org/10.1557/mrc.2018.70

Full Text Available
Nano-structured platinum group metal-free catalysts and their integration in fuel cell electrode architectures

Journal Article Serov, Alexey ; Shum, Andrew D. ; Xiao, Xianghui ; ... - Applied Catalysis B: Environmental

The novel platinum group metal-free (PGM-free) catalyst for the oxygen reduction reaction (ORR) is synthesized by a modified sacrificial support method (SSM). The catalyst chemical/surface composition is studied by X-ray photoelectron spectroscopy, and the morphology of the material is observed using both HR-SEM and HR-TEM, demonstratingthe open-frame, self-supported catalysts. This new catalyst’s electrochemical performance is evaluated by polarization curves and has behaviour comparable to the state-of-the-art PGM-free catalysts. Meso-structure imaging shows pores on the order of 100 nm, the mean size of the individual silica particles in the sacrificial support. For the first time, PGM-free catalyst layer (CL) morphology inmore »« less
Cited by 56
https://doi.org/10.1016/j.apcatb.2017.08.067

Full Text Available

Similar Records