Article
Energy & Fuels
Nur S. A. Hamid, S. K. Kamarudin, Nabila A. Karim
Summary: By using waste material eggshell powder to produce a composite membrane, the problems in direct methanol fuel cells can be addressed, with the performance of the composite membrane comparable to that of commercial Nafion 117 membrane. The results demonstrate the potential of eggshell powder as a filler in a Nafion matrix for applications in DMFC.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Review
Polymer Science
Gowthami Palanisamy, Tae Hwan Oh, Sadhasivam Thangarasu
Summary: A direct methanol fuel cell (DMFC) is an excellent energy device that converts methanol to energy with high efficiency. Commercial membranes for DMFCs are expensive and have high methanol permeability, but novel developments using cost-effective cellulose-based materials have improved performance. In this review, the advances and utilization of different cellulose materials as proton-exchange membranes (PEMs) for DMFCs are discussed, including cellulose derivatives and composites with inorganic additives.
Article
Polymer Science
Rudzani Sigwadi, Touhami Mokrani, Phumlani Fortune Msomi
Summary: Electrospun PAN nanofibers decorated with ZrO2 and blended with graphene oxide nanofibers were used to improve the performance and conductivity of Nafion membrane in fuel cells. The modified composite membrane demonstrated higher proton conductivity and overall membrane properties, as well as superior fuel cell efficiency compared to commercial Nafion and existing literature. With lower methanol permeability and a proton conductivity of 5.46 x 10(-8) cm(2)/s and 0.46 mS/cm respectively, the Nafion-PAN/ZrO2-GO nanofiber membrane achieved a fuel cell performance of 75.9 mWcm(-2) at a current density of 250 mAcm(-2). The composite membrane shows potential for application in fuel cells.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Electrochemistry
Amirsalar Bagherzadeh, Mahdi Tohidian, Yeganeh Mollamohammadi Sadafi, Amirsaeed Shamsabadi, Hesam Makki
Summary: Polyelectrolyte membranes (PEMs) containing chitosan and Nafion were prepared for DMFC application. The addition of Nafion increased the Tg and decreased the crystallinity of the chitosan matrix due to the interaction between -SO3H groups in Nafion and -NH2 groups in chitosan. The PEMs with higher Nafion loading weight exhibited higher proton conductivity and methanol permeability, and the membrane with 25 wt% Nafion showed comparable selectivity parameter to neat Nafion. A maximum power density of 39 mW cm(-2) was achieved for this membrane in DMFC performance test.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Gyu-Na Bae, Hye-Won Kim, Eun-Mi Jung, Sungmin Kang, Yong-Gun Shul, Dong-Hyun Peck
Summary: MOR/PTFE Nafion composite membranes were prepared by impregnating Nafion solutions in a PTFE porous support with a modified form of MOR. The addition of MOR had a positive effect on reducing methanol permeability and increasing water uptake of the membrane.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Li Liang, Zuo Zicheng, He Feng, Jiang Zhongqing, Li Yuliang
Summary: An ultrathin layer of nitrogen-rich GDY film is prepared to retard methanol permeation in direct methanol fuel cells, significantly increasing selective suppression of methanol transfer and improving power performance and long-term stability of the cell.
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2021)
Article
Chemistry, Physical
Nianfang Wan
Summary: This paper proposes accelerated stress test protocols for direct methanol fuel cell (DMFC) to simulate real-life operation conditions and shorten evaluation time. The cell exhibits long survival time and stable membrane/electrode interface, but degradation of gas diffusion layer (GDL) and catalysts are found to cause performance degradation.
JOURNAL OF POWER SOURCES
(2023)
Article
Energy & Fuels
Hazlina Junoh, Juhana Jaafar, Nik Abdul Hadi M. Nordin, Ahmad F. Ismail, Mohd H. D. Othman, Mukhlis A. Rahman, Farhana Aziz, Norhaniza Yusof, Syarifah Noor S. Sayed Daud
Summary: Porous poly ether sulfone (PES) membranes were prepared using two different solvents via dry/wet non-solvent phase inversion techniques, with membranes prepared using DMAc at 3 minutes solvent evaporation time showing desirable properties for proton conduction and methanol resistance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Environmental
Pradip Das, Bishnupada Mandal, Sasidhar Gumma
Summary: This study involves the synthesis of amino acid grafted nanocomposites as proton exchange membranes for direct methanol fuel cells and assessing their selectivity. The results show significant improvement in blocking methanol and enhanced conductivity of the composite membrane after modification.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Y. Prykhodko, K. Fatyeyeva, L. Hespel, S. Marais
Summary: Over 50% of energy is currently produced by burning non-renewable fossil fuels, leading to the release of greenhouse gases and environmental pollution. As a result, research on renewable energy sources, storage, and energy transformation devices has become increasingly important in recent years. Fuel cells, particularly proton exchange membrane fuel cells, are considered a promising energy device with ongoing developments in membrane technology.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Analytical
Chaoran Liu, Sanshan Hu, Lu Yin, Wenli Yang, Juan Yu, Yumin Xu, Lili Li, Gaofeng Wang, Luwen Wang
Summary: This study analyzed and discussed the effect of an anode composite electrode on the performance of a micro direct methanol fuel cell, focusing on the catalyst layer and micro-porous layer. It was found that optimizing the preparation under specific conditions can improve the performance of the fuel cell.
Article
Chemistry, Multidisciplinary
Keenan Smith, Fabrizia Foglia, Adam J. J. Clancy, Dan J. L. Brett, Thomas S. S. Miller
Summary: This study demonstrates a new multifunctional additive, 2D poly(triazine imide) (PTI), for composite proton exchange membranes (PEMs), which significantly improves proton conductivity and current/power densities in industrially relevant PEM fuel cells (PEMFCs). The enhanced performance is attributed to the formation of polymer aggregate-PTI clusters with increased 2D character and improved long-range connectivity, as well as acid-base interactions with pyridinic nitrogen facilitating proton hopping mechanism at all relative humidities. This work offers a new membrane concept with proven benefits for important electrochemical technologies and provides design principles for future optimization of proton transport and water management within PEMs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Mahmut Bayramoglu, Emine Sena Kazan, Zeynep Cigeroglu, Yasser Vasseghian
Summary: The direct methanol fuel cell (DMFC) system is an important clean and sustainable energy generation system. However, the efficiency of the system is lower than expected due to the incomplete reaction of methanol electrooxidation. This study focused on evaluating critical parameters and investigating the properties of reaction intermediates under operating conditions.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Chemistry, Physical
Aiswarya K. Sidharthan, Shiny Joseph
Summary: A sustainable approach for synthesizing a sodium ion conducting cation exchange membrane was investigated in this study, addressing the issues of methanol permeability, ionic conductivity, and cost of the direct methanol fuel cell (DMFC). The use of polyvinyl alcohol (PVA) and sulfonated polyvinyl alcohol (SPVA)-montmorillonite clay (MMT) membranes in an alkaline medium improved the ionic conductivity and achieved a high peak power density in passive alkaline DMFC experiments.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Polymer Science
Geng Cheng, Zhen Li, Shan Ren, Dongmei Han, Min Xiao, Shuanjin Wang, Yuezhong Meng
Summary: The study focused on a novel SPFEK composite membrane with excellent mechanical properties and antioxidant stability in a hydrated state, suitable for direct methanol fuel cells. The performance of the composite membrane was thoroughly evaluated, demonstrating its potential applications in fuel cell technology.
Article
Materials Science, Ceramics
Keith Savino, Matthew Z. Yates
CERAMICS INTERNATIONAL
(2015)
Article
Chemistry, Physical
Cong Fu, Keith Savino, Paul Gabrys, Aibin Zeng, Baohong Guan, Diana Olvera, Chenggong Wang, Boao Song, Hani Awad, Yongli Gao, Matthew Z. Yates
CHEMISTRY OF MATERIALS
(2015)
Article
Materials Science, Coatings & Films
Cong Fu, Boao Song, Chaoyi Wan, Keith Savino, Yu Wang, Xiyuan Zhang, Matthew Z. Yates
SURFACE & COATINGS TECHNOLOGY
(2015)
Article
Materials Science, Coatings & Films
Cong Fu, Xuefei Zhang, Keith Savino, Paul Gabrys, Yun Gao, Wanaruk Chaimayo, Benjamin L. Miller, Matthew Z. Yates
SURFACE & COATINGS TECHNOLOGY
(2016)
Article
Chemistry, Multidisciplinary
Qiaoshan Chen, Caiyun Jia, Yu Li, Jie Xu, Baohong Guan, Matthew Z. Yates
Article
Materials Science, Coatings & Films
Xuefei Zhang, Wanaruk Chaimayo, Cheng Yang, Jiali Yao, Benjamin L. Miller, Matthew Z. Yates
SURFACE & COATINGS TECHNOLOGY
(2017)
Article
Nanoscience & Nanotechnology
Xuefei Zhang, Matthew Z. Yates
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Chemistry, Physical
Xue Wei, Matthew Z. Yates
CHEMISTRY OF MATERIALS
(2012)
Article
Biophysics
Hsin-Yi Tsai, Alexander Lee, Wei Peng, Matthew Z. Yates
COLLOIDS AND SURFACES B-BIOINTERFACES
(2014)
Article
Chemistry, Multidisciplinary
Bao Kong, Baohong Guan, Matthew Z. Yates, Zhongbiao Wu
Article
Chemistry, Multidisciplinary
Hsin-Yi Tsai, Kanika Vats, Matthew Z. Yates, Danielle S. W. Benoit
Article
Materials Science, Coatings & Films
Xuefei Zhang, Matthew Z. Yates
SURFACE & COATINGS TECHNOLOGY
(2018)
Article
Chemistry, Multidisciplinary
Rashmi Ghosh, Oliver Swart, Sabrina Westgate, Benjamin L. Miller, Matthew Z. Yates
Article
Materials Science, Multidisciplinary
Rashmi Ghosh, Xiaoya Liu, Matthew Z. Yates
Summary: A novel process is demonstrated to produce patterns of electrically conductive copper on a flexible polyimide film substrate using standard desktop laser printed toner and near room temperature aqueous chemistry. The process avoids the use of high temperature, vacuum, and organic solvents and is suitable for low-cost prototyping or distributed manufacturing of simple electronic devices.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Engineering, Electrical & Electronic
P. Irving, R. Cecil, M. Z. Yates
Summary: An open-source potentiostat/galvanostat instrument design with improved capability over previous designs, suitable for a wider range of electrochemical measurements. The instrument is controlled by any computer running Python, including Raspberry Pi, and its open-source nature allows for custom modifications. Its low cost and versatility make it attractive for research and teaching laboratories.
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)
