Article
Chemistry, Multidisciplinary
F. Altaf, S. Ahmed, D. Dastan, R. Batool, Z. U. Rehman, Z. Shi, M. U. Hameed, P. Bocchetta, K. Jacob
Summary: Methanol permeation is the main issue of Nafion membranes in direct methanol fuel cells. In this study, novel nanocomposite polymer membranes are prepared by integrating surface-modified sepiolite in PVDF-g-PS copolymer. The analysis shows that the prepared membranes exhibit high proton conductivity and low methanol permeability.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Energy & Fuels
Khadijeh Hooshyari, Hamidreza Rezania, Vahid Vatanpour, Mohadese Rastgoo-Deylami, Hamid Reza Rajabi
Summary: This study focused on the synthesis of SPEKIS and preparation of new nanocomposite blend membranes using ZnS FQDs to enhance the proton conductivity and fuel cell performance of PBI membranes. The interactions between thiazole rings and functional groups of SPEKIS and ZnS FQDs, along with PBI groups, were shown to improve the proton conductivity. The best fuel cell performance was achieved with the SPEKIS/PBI/ZnS FQDs nanocomposite blend membranes, demonstrating promising potential for high-temperature fuel cells.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Chemical
Ping-Yen Chen, Tse-Han Chiu, Fan-Jie Lin, Jyh-Chien Chen
Summary: Two novel tetraamines have been synthesized, and polybenzimidazoles with outstanding thermal stability, solubility, and oxidative stability have been prepared. The resulting membranes exhibit excellent tensile strength, proton conductivity, and peak power density, making them promising candidates for high-temperature proton exchange membrane fuel cell (HT-PEMFC) applications.
JOURNAL OF MEMBRANE SCIENCE
(2022)
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.
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.
Article
Chemistry, Physical
Siva Moorthy, Berlina Maria Mahimai, Dinakaran Kannaiyan, Paradesi Deivanayagam
Summary: Porous metal-organic frameworks (MOFs) have attracted attention due to their crystallinity, porosity, and structural designability. In this study, composite membranes based on poly (2,5-benzimidazole) (ABPBI) were developed by incorporating copper-trimesic acid (Cu-TMA) MOFs into the polymer matrix. The membranes' properties, including proton conductivity, were evaluated, and the 3 wt% Cu-TMA loaded membrane exhibited the highest proton conductivity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
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, Multidisciplinary
Samuel Jeong, Tatsuhiko Ohto, Tomohiko Nishiuchi, Yuki Nagata, Jun-ichi Fujita, Yoshikazu Ito
Summary: To realize advanced fuel-cell technology, proton exchange membranes with high proton conductivity and low crossover of fuel molecules are required. In this study, a simple yet powerful method is proposed to optimize the crossover-conductivity relationship by using sulfanilic-functionalized holey graphenes supported by a Nafion membrane. The results show significant reduction in crossover and proton conductivity, indicating potential for application in advanced fuel cells that use methanol and formic acid as chemical fuels.
Article
Chemistry, Multidisciplinary
Yan Wang, Peng Sun, Zhongfang Li, Hui Guo, Hongchang Pei, Xiaoyan Yin
Summary: A series of composite membranes based on crosslinked mPBI with cerium 2,4,6-triphosphono-1,3,5-triazine (CeTPT) were successfully fabricated, showing good proton conductivity and thermal stability. The addition of new high-temperature proton conductor CeTPT, along with tetrafunctional crosslinker TGDDM, efficiently improved the mechanical properties, dimensional stability, and oxidative resistance of the membranes. These membranes exhibited high proton conductivity and good methanol resistance, making them suitable for direct methanol fuel cells.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Engineering, Environmental
Lukka Thuyavan Yogarathinam, Juhana Jaafar, Ahmad Fauzi Ismail, Pei Sean Goh, Arthanareeswaran Gangasalam, Mohamad Fahrul Radzi Hanifah, Kar Chun Wong, Mahesan Naidu Subramaniam, Jerome Peter
Summary: Nanostructured materials, such as polyaniline coated activated boron nitride, have been embedded in sulfonated poly (ether ether ketone) membranes to enhance proton conductivity and reduce methanol permeability in direct methanol fuel cell applications. The addition of functionalized boron nitride improves water uptake, ion exchange capacity, and chemical stability of the membranes, while significantly reducing methanol permeability. These nanocomposite membranes exhibit improved performance compared to commercial Nafion membranes, with higher open circuit voltage and power density.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Ping Li, Hui Guo, Peng Sun, Xulei Zhi, Zhongfang Li
Summary: To enhance the proton conductivity and oxidative stability of the proton exchange membrane, a strategy utilizing cross-linked polyoxy(etidronic acid)phazenes with m-polybenzimidazole membranes (POHP-mPBI) is proposed. The POHP-mPBI cross-linked membranes exhibit good proton conductivity, mechanical strength, oxidative stability, and low transmembrane permeability. The incorporation of proton conductors (POHP) into the PBI matrix by cross-linking is an effective method to improve the performance of high-temperature proton exchange membranes (HT-PEMs).
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Polymer Science
Kumar Divya, Dipak Rana, Laila Rameesha, Meenakshi Sundram Sri Abirami Saraswathi, Alagumalai Nagendran
Summary: Custom-made nanocomposite proton exchange membranes using sulfonated chitosan and sulfonated graphene oxide exhibited superior proton conductivity and selectivity for direct methanol fuel cells. The enhanced hydrophilicity and ion exchange capacity of the membranes contributed to the improved performance.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Engineering, Chemical
Yan Wang, Xiaoqin Qiao, Min Liu, Lei Liu, Nanwen Li
Summary: The effect of modifying polybenzimidazole anion exchange membranes with ?NH- was investigated, resulting in significantly improved hydroxide conductivity when cationic side chains were grafted onto the backbone. Ionic interactions between fixed cations and benzimidazolide rings were confirmed by chemical analysis, leading to enhanced membrane stability and fuel cell performance.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Polymer Science
B. Satheesh Kumar, K. R. Roshith, G. Unnikrishnan, K. S. Santhosh Kumar
Summary: Different contents of HKUST-1 metal-organic framework (3, 5, 7, 10 and 12 wt %) were incorporated into cyclohexane dicarboxylic acid based polybenzimidazole (Cy-PBI) and the interaction between MOF and PBI polymer resulted in peak broadening in FTIR spectra (2000-3000 cm-1). The composite membrane CM-7 showed significantly improved proton conductivity and mechanical strength compared to pristine PBI membrane, attributed to the presence of acid molecules housed within the MOF cavities that act as proton hopping centres. The uniform distribution of MOF in CM-7 matrix observed in FESEM images complements the enhanced properties.
Article
Biochemistry & Molecular Biology
Matteo Di Virgilio, Andrea Basso Peressut, Angelo Pontoglio, Saverio Latorrata, Giovanni Dotelli
Summary: The combination of polybenzimidazole (PBI) and graphene oxide (GO) for membrane manufacturing is gaining popularity due to their versatility. This study proposes a simple and reproducible procedure to prepare self-assembling GO/PBI composite membranes. The composites showed a homogenous dispersion of GO and PBI and demonstrated improved thermal stability and mechanical strength compared to pure PBI. Preliminary evaluation also showed that the GO/PBI composites performed equivalently or better than state-of-the-art PBI-based materials for proton exchange membranes.
Article
Chemistry, Multidisciplinary
Jiang Tao, Wang Ning, Peng Shuming, Yan Liuming
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2015)
Article
Materials Science, Multidisciplinary
Ning Wang, Jie Tian, Tao Jiang, Yanqiu Yang, Sheng Hu, Shuming Peng, Liuming Yan
JOURNAL OF NUCLEAR MATERIALS
(2015)
Review
Chemistry, Physical
Wenhui Wang, Junnan Gu, Ting He, Yangbin Shen, Shaobo Xi, Lei Tian, Feifei Li, Haoyuan Li, Liuming Yan, Xiaochun Zhou
Article
Chemistry, Multidisciplinary
Ning Wang, Tao Jiang, Yanqiu Yang, Jie Tian, Sheng Hu, Shuming Peng, Liuming Yan
Article
Chemistry, Multidisciplinary
Xuejiao Li, Liuming Yan, Baohua Yue
Article
Nanoscience & Nanotechnology
Wenhui Wang, Ting He, Xuehua Liu, Weina He, Hengjiang Cong, Yangbin Shen, Liuming Yan, Xuetong Zhang, Jinping Zhang, Xiaochun Zhou
ACS APPLIED MATERIALS & INTERFACES
(2016)
Article
Chemistry, Physical
Xiaoming Zhang, Baohua Yue, Liuming Yan, Guangbo Zeng, Sheng Tao
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2016)
Article
Chemistry, Physical
Liuming Yan, Yi Lu, Xuejiao Li
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2016)
Article
Chemistry, Physical
Xuejiao Li, Liuming Yan, Baohua Yue
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
Chemistry, Physical
Baohua Yue, Guangbo Zeng, Yepei Zhang, Sheng Tao, Xiaoming Zhang, Liuming Yan
SOLID STATE IONICS
(2017)
Article
Chemistry, Organic
Haizhen Jiang, Liuming Yan, Minjun Xu, Wenjun Lu, Yeshan Cai, Wen Wan, Jianhua Yao, Shaoxiong Wu, Shizheng Zhu, Jian Hao
JOURNAL OF ORGANIC CHEMISTRY
(2013)
Article
Chemistry, Physical
Huiting Liu, Liuming Yan, Baohua Yue, Aijun Li
JOURNAL OF PHYSICAL CHEMISTRY A
(2014)
Article
Chemistry, Physical
Xuejiao Li, Jia Song, Shuping Shi, Liuming Yan, Zhaochun Zhang, Tao Jiang, Shuming Peng
JOURNAL OF PHYSICAL CHEMISTRY A
(2017)
Article
Chemistry, Physical
Jiang Tao, Wang Ning, Cheng Chang-Ming, Peng Shu-Ming, Yan Liu-Ming
ACTA PHYSICO-CHIMICA SINICA
(2016)
Review
Chemistry, Physical
Han Shuai-Yuan, Yue Bao-Hua, Yan Liu-Ming
ACTA PHYSICO-CHIMICA SINICA
(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)
