Review
Chemistry, Physical
Minghan Xu, Hao Xue, Qingfu Wang, Lichao Jia
Summary: Proton exchange membrane fuel cells (PEMFCs) are potential clean energy sources attracting attention, with a focus on developing high-performance, low-cost PEMs to replace benchmark Nafion membranes. Sulfonated poly(arylene ether ketone)s (SPAEKs) and sulfonated poly(arylene ether sulfone)s (SPAESs) are promising candidates due to their performance and cost advantages. Efforts are classified and introduced in developing SPAEK and SPAES membranes for promising research directions in the field.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Zhuoyu Yin, Haobo Geng, Pengfei Yang, Benbing Shi, Chunyang Fan, Quan Peng, Hong Wu, Zhongyi Jiang
Summary: A sulfonated covalent organic framework nanosheets (TpPa-SO3H) were synthesized and incorporated into SPEEK matrix to prepare proton exchange membranes with increased ion exchange capacity and reduced swelling ratio. The SPEEK/TpPa-SO3H-5 membrane exhibited significantly improved proton conductivity and mechanical strength, leading to favorable performance in a single H-2/O-2 fuel cell.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Energy & Fuels
Nur Ain Masleeza Harun, Norazuwana Shaari, Nik Farah Hanis Nik Zaiman
Summary: SPEEK is recognized as a promising alternative PEM in fuel cell applications due to its advantageous properties, but its proton conductivity is influenced by the degree of sulfonation. While high DS of SPEEK can produce high proton conductivity, excessive production of DS may have side effects on membrane stability. Therefore, finding the optimal DS of SPEEK is crucial for fabricating PEM alternatives.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Polymer Science
Seyed Hesam-Aldin Samaei, Gholamreza Bakeri, Mohammad Soleimani Lashkenari
Summary: This study focused on developing low-cost proton exchange membranes (PEMs) based on sulfonated poly ether ether ketone (SPEEK) for microbial fuel cell (MFC) applications. By incorporating sulfonated polystyrene (SPS) and phosphotungstic acid (PWA), the performance of the PEMs was significantly enhanced, leading to improved proton conductivity and durability, resulting in higher power output in MFCs compared to commercial Nafion117 membranes.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Applied
Seung-Young Choi, Kyeong Sik Jin
Summary: Prolonged hydrothermal treatment of sulfonated poly(ether ether ketone) membranes induces mechanical degradation and hydrophilic-hydrophobic phase separation, affecting proton conductivity and device stability. Aging processes through hydration-dehydration cycling and prolonged hydrothermal treatment lead to different changes in nanostructure and properties of the membranes. Fuel cell performance shows significant differences between the two aged membranes, with hydration-dehydration cycling leading to better durability.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Green & Sustainable Science & Technology
Khadijeh Hooshyari, Samira Heydari, Hossein Beydaghi, Hamid Reza Rajabi
Summary: This study aims to improve the proton conductivity and fuel cell performance of polymer-based membranes by using specific nanoparticles. The produced membranes exhibit remarkable electrochemical and mechanical performances, achieving high proton conductivity and power density over a wide temperature range and demonstrating long lifetime. These nanocomposite membranes show potential application in fuel cells.
Article
Chemistry, Physical
Mohd Hilmi Mohamed, Hamid Ilbeygi, Juhana Jaafar, Madzlan Aziz, M. H. D. Othman, Mukhlis A. Rahman
Summary: This study successfully developed a high-performance proton exchange membrane using hybrid mesoporous siliceous phosphotungstic acid (mPTA-Si) and sulfonated poly ether ether ketone (SPEEK). The incorporation of mPTA-Si improved the water uptake and proton conductivity of the membrane, resulting in a significant increase in power density.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
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
Energy & Fuels
Syarifah N. S. S. Daud, Muhammad N. A. M. Norddin, Juhana Jaafar, Rubita Sudirman
Summary: Hot-pressing was used to integrate PEM and AEM into BPM, with sPEEK/PES and cQAPEEK as the electrolytes. The central composite design of response surface methodology was employed to analyze the effect of hot-press conditions on membrane adhesion and properties. The optimized temperature and gauge pressure were found to be 120 degrees C and 3 tonnes/square inch, resulting in a high power density for the sPEEK/PES-cQAPEEK BPM.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Guangbo Zeng, Liuming Yan, Baohua Yue, Hongbin Zhao, Jiujun Zhang
Summary: The translation describes the synthesis method and characteristics of a novel proton exchange membrane, which has high proton conductivity, moderate water uptake, and high ion exchange capacity, attributed to the features of flexible spacers and sidechains.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Polymer Science
E. Pajuste, I Reinholds, G. Vaivars, A. Antuzevics, L. Avotina, E. Sprugis, R. Mikko, K. Heikki, R. M. Meri, R. Kaparkalejs
Summary: This study evaluates the effects of electron beam irradiation on two types of proton exchange membranes (PEM) and finds that sulfonated poly(ether-ether-ketone) (SPEEK) exhibits higher mechanical and thermal stability after irradiation, making it a promising replacement for traditional PEM in fuel cell applications exposed to ionizing radiation.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Environmental Sciences
D. Vidhyeswari, A. Surendhar, S. Bhuvaneshwari
Summary: By incorporating CNTs into the SPEEK membrane, the composite membrane shows improved properties, including water uptake capacity and ion exchange capacity. The power density of the composite membrane is 2 times higher than that of the pristine membrane. The composite membrane with 0.75% CNT-SPEEK exhibits the highest power density.
Article
Materials Science, Multidisciplinary
Rajender Singh Malik, Udit Soni, Sampat Singh Chauhan, Devendra Kumar, Veena Choudhary
Summary: Proton conducting membranes of PVA-FNCs/SPEEK were synthesized by solution casting, exhibiting good proton conductivity and enhanced fuel cell performance. The addition of SPEEK and the crosslinking of PVA-FNCs were found to be key factors affecting the properties of the membranes. The semi-interpenetrating network membranes showed promising potential for applications in fuel cell technology.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Jinyang Li, Wenjie Wang, Zhongqing Jiang, Binglu Deng, Zhong-jie Jiang
Summary: This work reports on the co-filling of sulfonated zeolitic imidazolate framework-derived porous carbon and sulfonated silica to improve the performance of the sulfonated poly(ether ether ketone) membrane. The co-filled structure enhances proton conductivity, lowers methanol permeability, improves mechanical and oxidation stabilities, and shows potential as a proton exchange membrane for direct methanol fuel cells.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Multidisciplinary
Lijun Sun, Shuguo Qu, Xueyan Lv, Luyang Ding, Jihai Duan, Weiwen Wang
Summary: In this study, a Co-MOF-74/[IM2][H2PO4]/SPEEK ternary composite membrane was prepared by encapsulating ionic liquid (IL) in metal-organic framework (MOF), which improved the proton conductivity and thermal stability of sulfonated poly(ether ether ketone) (SPEEK) membrane.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Characterization & Testing
Farid Amirkhani, Minoo Mosadegh, Morteza Asghari, Mohammad Javad Parnian
Article
Chemistry, Physical
Fatemeh Beyraghi, Seyed Hesam Mirfarsi, Soosan Rowshanzamir, Aida Karimi, Mohammad Javad Parnian
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Energy & Fuels
Morteza Asghari, Samaneh Saadatmandi, Mohammad Javad Parnian
Summary: Modified graphene oxide nanosheets were used as fillers in poly(ether-b-amid) copolymer matrix for mixed matrix membranes fabrication to enhance CO2 capture. The modified nanosheets showed increased CO2 affinity and facilitated gas molecule transport, leading to improved selectivity and permeability for CO2 separation. The results demonstrated significant enhancement in CO2 permeability and selectivity, surpassing Robeson's upper bound for CO2/N-2 selectivity.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Review
Energy & Fuels
Maryam Jafari, Mohammad Javad Parnian, Hussein Gharibi, Zibin Liang, Ruqiang Zou
Summary: This review article focuses on the clarification of the synthesis-structure-activity correlations of ORR electrocatalysts for fuel cell applications. It discusses the classification of different MOF precursors and their final desirable electrocatalysts after the pyrolysis process. The investigation includes ORR performance and fuel cell performances of various MOF-derived materials, providing readers with a deeper understanding of nonprecious MOF-derived catalysts in the emerging field.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Analytical
Fatemeh Fathi Niazi, Foad Mehri, Soosan Rowshanzamir
Summary: The study found that tin/tin dioxide and carbon paper electrodes had a pyrrole removal efficiency in the range of 83%-100% when operating at a constant current density of 17 mA cm-2 for 6 hours. Additionally, cyclic voltammetry showed that the denitrification reaction using carbon paper, graphite, and tin/tin dioxide electrodes was diffusion-controlled.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Maryam Jafari, Hussein Gharibi, Mohammad Javad Parnian
Summary: This study successfully prepared N-doped carbon and Fe/N-co-doped carbon supports using a modified polyol method, and deposited Fe, Co, and Fe-Co nanoparticles on them, followed by thorough characterization. The Fe-NC support showed better ORR performance compared to the NC support, and the co-precipitation of Co and Fe nanoparticles on the supports was found to enhance ORR efficiency.
JOURNAL OF POWER SOURCES
(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
Engineering, Chemical
Reza Fateminia, Soosan Rowshanzamir, Foad Mehri
Summary: In this study, a novel ternary composite electrode was introduced to enhance the performance of capacitive deionization for nitrate removal from water by improving the specific capacitance of the carbon-based electrode. The addition of ZrO2 and PANi-ES into activated carbon resulted in a significant increase in specific capacitance and a decrease in charge transfer resistance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Review
Chemistry, Physical
Seyed Hesam Mirfarsi, Mohammad Javad Parnian, Soosan Rowshanzamir, Erik Kjeang
Summary: Due to the demand for reliable and economical fuel cells, researchers have focused on improving the durability of hydrocarbon-based proton exchange membranes (PEMs) without compromising performance. Cross-linking and blending techniques show promising potential in creating a 3D network within the membrane structure, resulting in improved long-term stability and durability. These membranes have demonstrated over 4000 hours of durability in hydrogen fuel cells and significantly lower methanol crossover compared to conventional fluorinated membranes, indicating their potential for commercialization.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Aida Karimi, Milad Shakouri Kalfati, Seyed Hesam Mirfarsi, Soosan Rowshanzamir
Summary: A dynamic model is developed to predict the concentration profiles of reactants, cross-over in the membrane, and hydrogen peroxide formation in a membrane electrode assembly (MEA) using sulfonated poly (ether ether ketone) (SPEEK) membrane. Results show that high voltages can accelerate the cross-over of reactants and promote the chemical mode of H2O2 formation. Additionally, reducing the membrane thickness increases the cross-over and formation of H2O2.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
Maryam Jafari, Hussein Gharibi, Mohammad Javad Parnian, Mokhtar Nasrollahpour, Mohsen Vafaee
Summary: The obtained Fe-bNCNT/NC-900 catalyst exhibited excellent ORR performance with high activity and stability under both acidic and alkaline conditions.
ACS APPLIED NANO MATERIALS
(2021)
Article
Engineering, Environmental
Farzad Rayekan Iranagh, Morteza Asghari, Mohammad Javad Parnian
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(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)