Article
Environmental Sciences
Asif Jamil, Sikander Rafiq, Tanveer Iqbal, Hafiza Aroosa Aslam Khan, Haris Mahmood Khan, Babar Azeem, M. Z. Mustafa, Abdulkader S. Hanbazazah
Summary: Fuel cells are environmentally friendly technology with high efficiency and economic advantages. Proton exchange membranes, especially for hydrogen fuel cells, have great potential but face challenges in terms of cost and degradation of proton exchange capacity over time.
Article
Engineering, Chemical
Farid Wijaya, Seunghee Woo, Hyejin Lee, Adam F. Nugraha, Dongwon Shin, Byungchan Bae
Summary: In this study, sulfonated multiblock poly(phenylene-co-arylene ether sulfone) (SmPPES) membranes were prepared via Colon's Nickel catalyzed cross-coupling reaction. The membranes showed well-defined phase separation and proton conductivities comparable to or exceeding that of a reference Nafion membrane. The control over sulfonated phenylene and ether sulfone hydrophobic blocks provides new insight into designing high-performance polymer electrolyte membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Hyunseung Lee, Hongdae Seo, Seong Ku Kim, Insung Bae
Summary: The aligned nanostructure of perfluorinated polymer electrolytes, achieved through capillary force lithography, enables increased proton conductivity. A hierarchical structure is realized through soft lithography, allowing control over the structures of proton-transporting channels. The line-patterned membranes show enhanced proton conductivities, as confirmed by electrochemical impedance analysis. Moreover, an increased interfacial contact area improves the power generation efficiency of the membrane-electrode assembly in proton-exchange membrane fuel cells.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Polymer Science
Adisak Pokprasert, Patrick Theato, Suwabun Chirachanchai
Summary: Proton transfer in polymer electrolyte membrane is a crucial mechanism in polymer electrolyte membrane fuel cells. This study proposes a method to enhance proton conductivity by aligning proton donor and acceptor polymer chains on the membrane surface through surface-initiated polymerization.
Review
Electrochemistry
Enrico Berretti, Luigi Osmieri, Vincenzo Baglio, Hamish A. Miller, Jonathan Filippi, Francesco Vizza, Monica Santamaria, Stefania Specchia, Carlo Santoro, Alessandro Lavacchi
Summary: In the last two decades, extensive research has been conducted on direct alcohol fuel cells (DAFCs) as potential on-demand power sources. Two leading technologies, proton exchange membranes (PEMs) and anion exchange membranes (AEMs), have emerged for acidic and alkaline DAFCs respectively. This review analyzes the current state-of-the-art in acidic and alkaline DAFCs using methanol and ethanol as fuels, with a focus on the effect of reaction stoichiometry. It highlights the participation of hydroxyl ions (OH-) and the presence of anions as alcohol oxidation products in alkaline systems, which are important considerations for fuel design and energy evaluation from a whole system perspective.
ELECTROCHEMICAL ENERGY REVIEWS
(2023)
Review
Biochemistry & Molecular Biology
Junyu Chen, Jiamu Cao, Rongji Zhang, Jing Zhou, Shimin Wang, Xu Liu, Tinghe Zhang, Xinyuan Tao, Yufeng Zhang
Summary: By modifying PBI membranes in both hydrogen-air PEMFCs and DMFCs to improve proton conductivity, it is possible to address the issues of low CO tolerance of the Pt electrode catalyst and methanol permanence, thus enhancing the performance of fuel cells.
Review
Chemistry, Physical
Qianwen Tang, Bing Li, Daijun Yang, Pingwen Ming, Cunman Zhang, Yanbo Wang
Summary: The article reviews the literature on hydrogen crossover in PEMFC, covering consequences, causes, mitigation measures, and detection methods. It discusses the influences of hydrogen crossover on the components and performance, analyzes the causes, and summarizes methods to alleviate membrane degradation. Various monitoring methods are described, providing a foundation for further research and improvement in fuel cell durability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Materials Science, Multidisciplinary
Yu Seung Kim
Summary: As fuel cells and electrolyzers demand higher performance and durability, the design of polymer electrolytes is evolving with a focus on increasing ionic concentration. This review highlights recent advancements in the use of high ionic concentration polymer electrolytes in electrochemical devices, summarizing synthetic approaches, performance benefits, challenges, and prospects. The goal is to explain the working principles of these electrolytes in high-performing fuel cells and electrolyzers, while also generating interest in utilizing these materials in tackling tough scientific challenges in emerging fields.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Engineering, Chemical
Irene Bavasso, Maria Paola Bracciale, Francesca Sbardella, Debora Puglia, Franco Dominici, Luigi Torre, Jacopo Tirillo, Fabrizio Sarasini, Igor Maria De Rosa, Wenbo Xin, Luca Di Palma
Summary: This study investigated the use of self-made membranes based on PES with sulfonated Fe3O4 in H-Type Microbial Fuel Cell system. The incorporation of 10 wt% sulfonated Fe3O4 in PES resulted in membranes with superior properties, including an OCV and Coulombic efficiency of 868.09 mV and 29.58%, respectively. The maximum power and current densities were improved by 270% and 117% compared to Nafion 117.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Environmental Sciences
Kuan Shiong Khoo, Wen Yi Chia, Kexin Wang, Chih-Kai Chang, Hui Yi Leong, Muhammad Nasrulhazim Bin Maaris, Pau Loke Show
Summary: This review summarizes the application of ionic liquids in high-temperature proton exchange membrane fuel cells, discusses their advantages when combined with polybenzimidazole, and evaluates and discusses the research development and issues of ILs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Mehran Yousefi Tehrani, Seyed Hesam Mirfarsi, Soosan Rowshanzamir
Summary: In this study, a complex finite element model is developed to investigate the mechanical response of hydrocarbon-based membranes under different fuel cell conditions. The results show that sulfonated poly(ether ether ketone) (SPEEK) membranes undergo the most severe swelling-induced degradation at low voltages, high temperatures, and backpressure values. Clamping pressure is a dominant factor, and Nafion membranes have a higher risk of wrinkle deformation under compression.
Article
Green & Sustainable Science & Technology
Faizah Altaf, Rida Batool, Rohama Gill, Zohaib Ur Rehman, Hammad Majeed, Adnan Ahmad, Muhammad Shafiq, Davoud Dastan, Ghazanfar Abbas, Karl Jacob
Summary: A series of novel composite membranes based on ABPBI-MMT and SPVA have been prepared and further doped with phosphoric acid. The introduction of ABPBI-MMT decreased the water uptake of pristine polymer matrix, but significantly increased after phosphoric acid doping. The composite membranes displayed enhanced proton conductivity values, especially at high temperatures, making them promising candidates for high-temperature PEM fuel cell applications.
Article
Chemistry, Physical
Brian Kienitz
Summary: Thinner ionomer membranes can improve fuel cell system performance but lead to increased anode purge rates. The model predicts an optimal membrane thickness for maximizing vehicle range, depending highly on other system conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Nanoscience & Nanotechnology
Kyungwhan Min, Abu Zafar Al Munsur, Sae Yane Paek, Soomin Jeon, So Young Lee, Tae-Hyun Kim
Summary: By coating N-doped carbon quantum dots (CQDs) with hydrophilic functional groups on Nafion-212 membrane, the morphology and ionic conductivity of the membrane are improved and hydrogen permeability is reduced. The Nafion membrane coated with 0.75 wt % of N-doped CQD (CQD-cNafion-0.75) exhibits better mechanical properties, higher oxidation stability, higher ionic conductivity of 240.3 mS cm-1 at 80 degrees C, and a reduction in hydrogen permeability (about 10%) compared to Nafion-212. In addition, the performance of single-cell PEMWE using the CQD-cNafion-0.75 membrane is approximately 1.2 times higher than Nafion-212.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Physical
Sahng Hyuck Woo, So Young Lee, Young-Gi Yoon, Arnaud Rigacci, Jung-Je Woo, Christian Beauger, Hyoung-Juhn Kim
Summary: The incorporation of nanoclays into polymer matrixes improves the performance of proton exchange membranes (PEMs) in proton exchange membrane fuel cells (PEMFCs), especially at high temperatures and low relative humidity (RH). Nanoclays also enhance the mechanical properties and reduce the cost of composite membranes.
JOURNAL OF POWER SOURCES
(2022)
Article
Energy & Fuels
Daniel DeSantis, Jarad A. Mason, Brian D. James, Cassidy Houchins, Jeffrey R. Long, Mike Veenstra
Article
Chemistry, Multidisciplinary
Blaise A. Pinaud, Jesse D. Benck, Linsey C. Seitz, Arnold J. Forman, Zhebo Chen, Todd G. Deutsch, Brian D. James, Kevin N. Baum, George N. Baum, Shane Ardo, Heli Wang, Eric Miller, Thomas F. Jaramillo
ENERGY & ENVIRONMENTAL SCIENCE
(2013)
Article
Engineering, Manufacturing
Brian D. James, Andrew B. Spisak, Whitney G. Colella
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2014)
Article
Chemistry, Physical
Simon T. Thompson, Brian D. James, Jennie M. Huya-Kouadio, Cassidy Houchins, Daniel A. DeSantis, Rajesh Ahluwalia, Adria R. Wilson, Gregory Kleen, Dimitrios Papageorgopoulos
JOURNAL OF POWER SOURCES
(2018)
Article
Biotechnology & Applied Microbiology
Alex Badgett, Mark Ruth, Brian James, Bryan Pivovar
Summary: Hydrogen is an emerging alternative for energy storage, offering a variety of applications including transportation, electricity generation, and chemical synthesis. Techno-economic analysis is crucial for guiding research directions to make electrolytic hydrogen cost competitive, and future opportunities include dispatchable operation in power markets, optimizing costs and system durability, and analyzing pathways for hydrogen to support economy-wide decarbonization.
CURRENT OPINION IN CHEMICAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Daniel DeSantis, Brian D. James, Cassidy Houchins, Genevieve Saur, Maxim Lyubovsky
Summary: This paper compares the relative cost of long-distance, large-scale energy transmission by electricity, gaseous, and liquid carriers. The higher cost of electrical transmission is primarily due to lower carrying capacity of electrical transmission lines compared to pipelines for gaseous and liquid fuels. The differences in transmission cost are important but often unrecognized, and should be considered in analysis of various renewable energy production, distribution, and utilization scenarios.
Proceedings Paper
Electrochemistry
J. M. Huya-Kouadio, B. D. James, C. Houchins
FUEL CELL SEMINAR & ENERGY EXPOSITION 2017
(2018)
Proceedings Paper
Electrochemistry
Jennie M. Moton, Brian D. James, Whitney G. Colellal
PROCEEDINGS OF THE ASME 12TH FUEL CELL SCIENCE, ENGINEERING AND TECHNOLOGY CONFERENCE, 2014
(2014)
Proceedings Paper
Electrochemistry
Brian D. James, Jennie M. Moton, Whitney G. Colella
PROCEEDINGS OF THE ASME 12TH FUEL CELL SCIENCE, ENGINEERING AND TECHNOLOGY CONFERENCE, 2014
(2014)
Proceedings Paper
Electrochemistry
Whitney G. Colella, Brian D. James, Jennie M. Moton, Todd G. Ramsden, Genevieve Saur
PROCEEDINGS OF THE ASME 12TH FUEL CELL SCIENCE, ENGINEERING AND TECHNOLOGY CONFERENCE, 2014
(2014)
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)