Journal ArticleDOI
Enhanced triple-phase boundary density in infiltrated electrodes for solid oxide fuel cells demonstrated by high-resolution tomography
Reads0
Chats0
TLDR
In this article, the authors demonstrate the three-dimensional imaging of nano-particle infiltrated Ni-GDC (gadolinia-doped ceria) electrodes using focused ion beam tomography.About:
This article is published in Journal of Power Sources.The article was published on 2014-11-15. It has received 84 citations till now. The article focuses on the topics: Triple phase boundary & Electrode.read more
Citations
More filters
Journal ArticleDOI
Tailoring SOFC Electrode Microstructures for Improved Performance
Paul A. Connor,Xiangling Yue,Cristian Savaniu,Robert Price,Georgios Triantafyllou,Mark Cassidy,Gwilherm Kerherve,David J. Payne,Robert C. Maher,Lesley F. Cohen,Rumen I. Tomov,Bartek A. Glowacki,Ramachandran Vasant Kumar,John T. S. Irvine +13 more
TL;DR: In this paper, the authors discuss the use of solution techniques to impregnate an already optimized electrode skeleton, which offers a fast and efficient way to evaluate new electrode materials and can also offer low cost routes to manufacture novel structures and to fine tune already known structures.
Journal ArticleDOI
Three-dimensional Inkjet Printed Solid Oxide Electrochemical Reactors. I. Yttria-stabilized Zirconia Electrolyte
TL;DR: In this paper, stable aqueous colloidal dispersions of yttria-stabilized zirconia (YSZ), a common SOFC electrolyte material, were used to fabricate 2D planar and highly-customisable 3D microstructures by inkjet printing.
Journal ArticleDOI
The fractal nature of the three-phase boundary: A heuristic approach to the degradation of nanostructured solid oxide fuel cell anodes
Antonio Bertei,Enrique Ruiz-Trejo,K. M. Kareh,Vladimir Yufit,Xin Wang,Farid Tariq,Nigel P. Brandon +6 more
TL;DR: In this paper, the authors quantified the electrochemical and microstructural degradation of nanostructured electrodes by combining 3D tomography, electrochemical impedance spectroscopy (EIS) and mechanistic modeling.
Journal ArticleDOI
Validation of a physically-based solid oxide fuel cell anode model combining 3D tomography and impedance spectroscopy
TL;DR: In this paper, a physically-based model for the simulation of impedance spectra in solid oxide fuel cell (SOFC) composite anodes is presented, taking into account the charge transport and the charge-transfer reaction at the three-phase boundary distributed along the anode thickness, as well as the phenomena at the electrode/electrolyte interface and the multicomponent gas diffusion in the test rig.
Journal ArticleDOI
Nitrogen-doped tubular carbon foam electrodes for efficient electroreduction of CO2 to syngas with potential-independent CO/H2 ratios
Hongqiang Li,Nan Xiao,Yuwei Wang,Chen Li,Xuan Ye,Zhen Guo,Xin Pan,Chang Liu,Jinpeng Bai,Jian Xiao,Xiaoyu Zhang,Shijia Zhao,Jieshan Qiu,Jieshan Qiu +13 more
TL;DR: In this article, a series of nitrogen-doped tubular carbon foam electrodes were designed and used as both gas diffusers and self-supported electrocatalysts, which significantly enhances the mass transport and provides an efficient triple phase catalytic interface.
References
More filters
Journal ArticleDOI
Three-dimensional reconstruction of a solid-oxide fuel-cell anode
James R. Wilson,Worawarit Kobsiriphat,R. Mendoza,R. Mendoza,Hsun-Yi Chen,Jon Hiller,Dean J. Miller,Katsuyo Thornton,Peter W. Voorhees,Stuart B. Adler,Scott A. Barnett +10 more
TL;DR: This work demonstrates the use of dual-beam focused ion beam–scanning electron microscopy to make a complete three-dimensional reconstruction of a solid-oxide fuel-cell electrode, and calculates critical microstructural features such as volume fractions and surface areas of specific phases, three-phase boundary length, and the connectivity and tortuosity of specific subphases.
Journal ArticleDOI
High‐Performance SOFC Cathodes Prepared by Infiltration
John M. Vohs,Raymond J. Gorte +1 more
TL;DR: In this article, a review of the literature on this new approach for cathode preparation and insights that this work has provided for understanding the relationships between the materials properties, electrochemical performance, and electrode stability is provided.
Journal ArticleDOI
Nanoscale and nano-structured electrodes of solid oxide fuel cells by infiltration: Advances and challenges
TL;DR: In this article, the advances and challenges in the development of nanoscale and nano-structured electrodes and the fundamental understanding of the remarkable enhancement in the electrode performance are reviewed and discussed with primary focus on the progress and status of the field in the last 5 years.
Journal ArticleDOI
Quantification of SOFC anode microstructure based on dual beam FIB-SEM technique
Hiroshi Iwai,Naoki Shikazono,Toshiaki Matsui,Hisanori Teshima,Masashi Kishimoto,Ryo Kishida,Hayashi Daisuke,Katsuhisa Matsuzaki,Daisuke Kanno,Motohiro Saito,Hiroki Muroyama,Koichi Eguchi,Nobuhide Kasagi,Hideo Yoshida +13 more
TL;DR: In this article, the three-dimensional microstructure of an SOFC anode is quantified using a dual beam focused ion beam scanning electron microscopy (FIB-SEM) system equipped with an energy dispersive X-ray spectroscopy (EDX) unit.