Article
Electrochemistry
Ian A. Robinson, Yi-Lin Huang, Samuel A. Horlick, Mohammed Hussain, Alireza Pesaran, Eric D. Wachsman
Summary: By modifying the cathode surface chemistry at a relatively low temperature, the activity and durability of high-performing, low-temperature cathodes can be enhanced. This modification activates the highly defected surface and maintains the nanoscale electrocatalysts without the need for high-temperature sintering. The modified cathode exhibits significantly reduced impedance and increased stability.
ELECTROCHIMICA ACTA
(2023)
Article
Engineering, Chemical
Shenglin Liu, Wu Menglin, Lanying Lu, Jiupai Ni, Chengsheng Ni, John T. S. Irvine
Summary: The perovskite La0.5Ba0.5CuxFe1-xO3-delta was studied as a cathode for a protonic solid oxide fuel cell (H-SOFC), showing potential for improved performance. The introduction of Fe in the composition enhanced certain conductivity parameters but reduced proton conductivity, while mixed cations in La0.5Ba0.5Cu0.5Fe0.5O3-delta achieved a low thermal expansion coefficient.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Applied
Wei Zhang, Yun Hang Hu
Summary: This article reviews recent advances in the design and fabrication of cathodes for efficient solid oxide fuel cells (SOFCs), including engineering cathode microstructures, fabrication techniques for cathode layers, and strategies to address segregation and poisoning issues.
Article
Chemistry, Multidisciplinary
Oliver Zhao, David W. Collinson, Shinsuke Ohshita, Masato Naito, Nozomi Nakano, Gregory Tortissier, Takashi Nomura, Reinhold H. Dauskardt
Summary: The hydrophobic and ultrathin nature of PFPE-silane films make their experimental characterization difficult, but their properties are closely related to mechanical structure and wear resistance. Optimizing substrate conditions and increasing the number of silane groups can enhance the cohesive fracture energy and modulus of PFPE-silane films.
Article
Electrochemistry
F. Kukk, S. Pylypko, E. Lust, G. Nurk
Summary: This study examines the effect of different thicknesses of hydrogen electrode active layer on the performance of reversible solid oxide cells. The results show that cells with an active layer thickness ranging from 7 to 16μm perform the best under specific operating conditions.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Engineering, Chemical
Saim Saher, Chou Yong Tan, S. Ramesh, Boon Kar Yap, Boon Hoong Ong, Kim Hung Mo, M. S. H. Al-Furjan
Summary: This study investigates the effect of Pr4Ni3O10+6 (PNO) coating with varying surface coverage on the oxygen permeation performance of La0.6Sr0.4Co0.2Fe0.8O3-6 (LSCF) at 700 degrees C. The results show that the PNO coating enhances oxygen permeation and inhibits the formation of secondary phases on the surface. The best-performing PNO5 sample exhibits a significant increase of 74% in oxygen permeation compared to bare LSCF, with a minimal decrease of 2.1% after prolonged operation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Physical
Juan Carlos Perez-Flores, Miguel Castro-Garcia, Vidal Crespo-Munoz, Jose Fernando Valera-Jimenez, Flaviano Garcia-Alvarado, Jesus Canales-Vazquez
Summary: The electrode performance and degradation of 1:1 La2-xNiTiO6-delta:YSZ composites were studied under high temperature conditions, leading to the formation of La2Zr2O7 and NiO as secondary phases, which hindered ionic diffusion and oxygen access to surface active area.
Article
Chemistry, Physical
Emmanuel Balogun, Simon Cassegrain, Peter Mardle, Michael Adamski, Torben Saatkamp, Steven Holdcroft
Summary: This study reports the design and addition of HB-sPPT-H+ ionomer particles to improve the performance of proton exchange membrane fuel cells. By introducing a direct pathway for proton conduction, the ionic resistance of the catalyst layer is reduced, catalyst mass activity is increased, and power output is improved.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Physical
Zhe Zhang, Sigeng Chen, Haixia Zhang, Chuangang Yao, Wenwen Zhang, Tingting Qu, Tan Wang, Haocong Wang, Xiaoshi Lang, Kedi Cai
Summary: Novel composite cathode materials prepared through a one-pot strategy showed improved oxygen reduction activity and CO2 tolerance in solid oxide fuel cells, leading to enhanced performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Electrochemistry
Jaewoon Hong, Hohan Bae, Junghyun Park, Sun-Ju Song, Eric D. Wachsman
Summary: This study investigated the changes in cathode parameters before and after infiltration using Jamnik and Maier's MIEC transmission line model. The results showed that infiltrating SSC into the LSCF6428 perovskite electrode resulted in a significant decrease in surface reaction resistance Rp and oxygen ion diffusion resistance Rs. The surface adsorption capacitance CHN0 increased after infiltration, indicating a change from bulk diffusion to surface diffusion. Additionally, the characteristics of surface reactions changed from the reduction reaction of the intermediate stage to the dissociative adsorption reaction of the initial stage.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
A. A. Solovyev, A. V. Shipilova, S. V. Rabotkin, E. A. Smolyanskiy, A. N. Shmakov
Summary: This study investigates the influence of the LSC-GDC composite cathode interlayer on the operation of solid oxide fuel cells. It is shown that the composite layers with 50% GDC content possess the most efficient electrochemical activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Sajad Vafaeenezhad, Miguel A. Morales -Zapata, Amir Reza Hanifi, Miguel A. Laguna-Bercero, Partha Sarkar, Thomas H. Etsell
Summary: The electrochemical performance and stability of infiltrated praseodymium nickelate (PNO) as the cathode for solid oxide fuel cell (SOFC) applications was studied. The results showed that PNO infiltrated into gadolinium-doped ceria (GDC) scaffolds improved the oxygen reduction reaction and transformed into a phase with higher electrical conductivity and thermal stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Cuicui Sun, Yu Shen, Fang Wang, Qian Duan
Summary: Nano-sized hollow porous network composite cathode LSF-BZCY is prepared by electrostatic spinning and applied to anode-supported proton-conducting solid oxide fuel cell. The LSF-BZCY composite cathode exhibits loose texture and porous nanofiber structure, and shows excellent electrochemical performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Electrochemistry
Preetam Sharma, Bapi Bera, Douglas Aaron, Muenir Mustafa Besli, Saravanan Kuppan, Lei Cheng, Jonathan Braaten, Nathan Craig, Sarah Stewart, Michael Metzger, Christina Johnston, Matthew M. Mench
Summary: This study quantifies the impact of nitrogen flow rate on Pt particle size and distribution in the inlet and outlet of polymer electrolyte fuel cell cathodes during a square-wave accelerated stress test. It found that while the average Pt particle size remained within the range of 9-10.5 nm for different N-2 flow rates, there was greater growth in particle size at the outlet compared to the inlet. The study also observed a linear increase in electrochemically active surface area loss with increasing N-2 flow rate.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Chang Liu, Meital Shviro, Aldo S. Gago, Sarah F. Zaccarine, Guido Bender, Pawel Gazdzicki, Tobias Morawietz, Indro Biswas, Marcin Rasinski, Andreas Everwand, Roland Schierholz, Jason Pfeilsticker, Martin Muller, Pietro P. Lopes, Rudiger-A Eichel, Bryan Pivovar, Svitlana Pylypenko, K. Andreas Friedrich, Werner Lehnert, Marcelo Carmo
Summary: This study demonstrates how the design of PTLs can be improved to enhance their durability and corrosion resistance under real electrolysis conditions, providing the possibility of prolonged operation for water electrolyzers.
ADVANCED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Ting Chen, George F. Harrington, Juveria Masood, Kazunari Sasaki, Nicola H. Perry
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Materials Science, Multidisciplinary
George F. Harrington, Lixin Sun, Bilge Yildiz, Kazunari Sasaki, Nicola H. Perry, Harry L. Tuller
Article
Chemistry, Physical
Shotaro Futamura, Aki Muramoto, Yuya Tachikawa, Junko Matsuda, Stephen M. Lyth, Yusuke Shiratori, Shunsuke Taniguchi, Kazunari Sasaki
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
T. G. H. Nguyen, M. Sakamoto, T. Uchida, D. C. T. Doan, M. C. Dang, P. H. Tu, K. Sasaki, Y. Shiratori
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Electrochemistry
Yang Ming Hao, Hironori Nakajima, Akiko Inada, Kazunari Sasaki, Kohei Ito
ELECTROCHIMICA ACTA
(2019)
Article
Chemistry, Physical
Tatsuya Kawasaki, Junko Matsuda, Yuya Tachikawa, Stephen Matthew Lyth, Yusuke Shiratori, Shunsuke Taniguchi, Kazunari Sasaki
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Yasuharu Kawabata, Tatsuya Nakajima, Kazuo Nakamura, Toru Hatae, Yuya Tachikawa, Shunsuke Taniguchi, Yoshio Matsuzaki, Kazunari Sasaki
JOURNAL OF POWER SOURCES
(2020)
Article
Chemistry, Physical
Takuro Fukumoto, Naoki Endo, Katsuya Natsukoshi, Yuya Tachikawa, George F. Harrington, Stephen M. Lyth, Junko Matsuda, Kazunari Sasaki
Summary: Reversible solid oxide cells (r-SOCs) have high efficiency for power generation and hydrogen generation, making them important for supporting renewable energy. The exchange current density is a crucial parameter for quantifying electrode performance. This study investigates the microstructure and apparent exchange current density of different fuel and air electrodes under varying temperature, fuel humidification, and oxygen concentration conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Kohei Matsumoto, Yuya Tachikawa, Stephen M. Lyth, Junko Matsuda, Kazunari Sasaki
Summary: Ni-Co alloy cermet anodes are highly attractive for the development of robust solid oxide fuel cells (SOFCs) due to their high durability, comparable electrochemical performance, and protection against further oxidation provided by cobalt-rich oxide layers on the surface of the alloy particles.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Applied
Muhammad Irfan Maulana Kusdhany, Zhongliang Ma, Albert Mufundirwa, Hai-Wen Li, Kazunari Sasaki, Akari Hayashi, Stephen Matthew Lyth
Summary: In this study, hierarchically porous and microporous nitrogen-doped carbon foams were synthesized from metal alkoxides via one-step thermal decomposition. The carbon foams exhibited high hydrogen uptake and CO2 uptake, with the nitrogen-doped carbon foam showing slightly improved hydrogen uptake at lower pressure compared to the carbon foam. This work demonstrates the potential of these low-cost metal alkoxide-derived carbon foams for gas storage and separation applications.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Yasir Arafat Hutapea, Masamichi Nishihara, Zulfi Al Rasyid Gautama, Albert Mufundirwa, Stephen Matthew Lyth, Takeharu Sugiyama, Mayumi Nagayama, Kazunari Sasaki, Akari Hayashi
Summary: In this study, a simple method to reduce oxygen transport resistance (OTR) in fuel cells was demonstrated by mixing a high oxygen permeable polymer and a commercial Nafion(R) ionomer. The resulting blend ionomers, although having lower proton conductivity, improved fuel cell performance in high current density regions.
JOURNAL OF POWER SOURCES
(2023)
Article
Electrochemistry
Yusuke Ishibashi, Kohei Matsumoto, Shotaro Futamura, Yuya Tachikawa, Junko Matsuda, Stephen M. Lyth, Yusuke Shiratori, Shunsuke Taniguchi, Kazunari Sasaki
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Electrochemistry
D. Kawachino, M. Yasutake, Z. Noda, J. Matsuda, S. M. Lyth, A. Hayashi, K. Sasaki
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Chemistry, Physical
Shiyan Feng, Shoichi Kondo, Takamasa Kikuchi, Liana Christiani, Byungchan Hwang, Kazuriari Sasaki, Masamichi Nishihara
ACS APPLIED ENERGY MATERIALS
(2019)
Article
Electrochemistry
Masahiro Yasutake, Daiki Kawachino, Zhiyun Noda, Junko Matsuda, Stephen M. Lyth, Kohei Ito, Akari Hayashi, Kazunari Sasaki
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)
