Article
Multidisciplinary Sciences
Zhi Long, Kenji Miyatake
Summary: A new SPP-based ionomer, SPP-TP-f, was developed with high ion exchange capacity and superior proton conductive performance, surpassing Nafion even under low humidity conditions. Additionally, the solvent solubility of SPP-TP-f 5.1 allowed for the preparation of a composite membrane SPP-TP-f 5.1/DPTFE, showing excellent fuel cell performance.
Article
Green & Sustainable Science & Technology
Qingting Liu, Xiaohe Wang, Xiaoxiao Zhang, Zhiwei Ling, Wenzhuo Wu, Xudong Fu, Rong Zhang, Shengfei Hu, Xiao Li, Feng Zhao, Xujin Bao
Summary: Polyethyleneimine-filled sepiolite nanorods (PEI@SNR)-embedded poly(2,5-benzimidazole) composites (ABPBI/PEI@SNR) were synthesized to enhance the proton conductivity and stability of proton-exchange membrane fuel cells (PEMFCs). The composite membranes showed improved thermal stability and achieved high proton conductivities from room temperature to 200 degrees C. The cell performance of the composite membrane-based PEMFCs was significantly better than previously reported zeolite-embedded membranes.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Nanoscience & Nanotechnology
Funda Arslan, Khajidkhand Chuluunbandi, Anna T. S. Freiberg, Attila Kormanyos, Ferit Sit, Serhiy Cherevko, Jochen Kerres, Simon Thiele, Thomas Boehm
Summary: A new ion-pair-coordinated membrane (IPM) system with quaternary ammonium groups for high-temperature proton-exchange membrane fuel cells is introduced, showing reduced swelling and better mechanical properties upon doping. The best-performing IPM-based HT-PEMFC achieves higher power density compared to conventional PBI membranes, making them promising candidates for application in this field.
ACS APPLIED MATERIALS & INTERFACES
(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)
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
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
Xue Li, Shubo Wang, Hong Zhang, Cheng Lin, Xiaofeng Xie, Chenxing Hu, Ran Tian
Summary: Copoly (arylene ether sulfone)s were used for proton exchange membrane preparation, achieving enhanced phase-separated morphology and favorable proton conductivity. The membranes exhibited higher water uptake and reasonably high proton conductivity, making them suitable for use in PEMFCs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Polymer Science
Miriam M. Tellez-Cruz, Jorge Escorihuela, Omar Solorza-Feria, Vicente Compan
Summary: The study of electrochemical catalyst conversion of renewable electricity and carbon oxides into chemical fuels is crucial for mitigating the global energy crisis. Research efforts are currently focused on developing high-performance membranes and nanomaterials with high catalytic activity to improve fuel cell performance and reduce the use of expensive platinum group metals.
Article
Chemistry, Multidisciplinary
Ernestino Lufrano, Cataldo Simari, Apostolos Enotiadis, Isabella Nicotera
Summary: In this study, sPEEK was used as a polymer matrix and the addition of organosilica nanoplatelets improved the mechanical and proton transport properties of the membranes. This nanocomposite material shows great potential for applications in PEMFCs.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Heesoo Choi, Jaeyeon Kim, Obeen Kwon, Hongnyoung Yoo, Hyeok Kim, Hyeonjin Cha, Taehyun Park
Summary: In this study, water removal in a transparent fuel cell and its relationship with voltage and impedance responses are analyzed. It is found that the frequency of water flow is positively correlated with voltage, suggesting that frequent flooding-induced water removal could enhance fuel cell performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Shuai Shi, Xianglong Wen, Qinqin Sang, Shuai Yin, Kaili Wang, Jian Zhang, Min Hu, Huiming Yin, Jia He, Yi Ding
Summary: Designing catalyst layers with high proton conductivity in membrane electrode assemblies is crucial for proton exchange membrane fuel cells. The use of an ultrathin Pt-decorated nanoporous gold catalyst layer has been shown to significantly improve proton conduction and achieve excellent power density in carbon-free electrodes.
Article
Nanoscience & Nanotechnology
Gabrielle Foran, Adrien Mery, Marc Bertrand, Steeve Rousselot, David Lepage, David Ayme-Perrot, Mickael Dolle
Summary: Inorganic solid electrolytes face processing issues and incompatibility with lithium electrodes, hindering their commercialization in all-solid-state lithium batteries. Strategies such as adding solid polymer electrolytes or using hybrid liquid-ceramic electrolytes can improve the electrode-electrolyte interface and overall performance of the batteries. However, differences in lithium transportability and high interfacial energy barriers remain challenges to be addressed.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Composites
Qingting Liu, Zhiwei Ling, Xiaohe Wang, Xudong Fu, Wenzhuo Wu, Chunyong Xiong, Bei Wang, Rong Zhang, Xiao Li, Feng Zhao, Xujin Bao, Shengfei Hu, Jun Yang
Summary: To prevent leaching of phosphoric acid (PA) and protect polybenzimidazole-based proton exchange membranes, researchers embedded polyethyleneimine-confined halloysite nanotubes (PEI@HNTs) in poly (2,5benzimidazole) membranes. The composite membrane exhibited excellent mechanical strength and electrical performance over a wide temperature range. The addition of PEI@HNTs improved the absorption and retention capacity of PA, leading to enhanced proton conductivity and power density.
COMPOSITES SCIENCE AND TECHNOLOGY
(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
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)
Article
Materials Science, Ceramics
Maria T. Colomer, Lidia Zur, Maurizio Ferrari, Angel L. Ortiz
CERAMICS INTERNATIONAL
(2018)
Article
Materials Science, Ceramics
Maria T. Colomer, Eva Chinarro, Angel L. Ortiz
CERAMICS INTERNATIONAL
(2018)
Article
Chemistry, Physical
Maria T. Colomer
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Chemistry, Physical
I. Camps, M. Borlaf, J. Toudert, A. de Andres, M. T. Colomer, R. Moreno, R. Serna
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Materials Science, Multidisciplinary
M. T. Colomer, A. del Campo
JOURNAL OF MATERIALS SCIENCE
(2019)
Article
Chemistry, Physical
Maria T. Colomer, Carlos Roa, Angel L. Ortiz, Luz M. Ballesteros, Pablo Molina
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Ceramics
Aitana Tamayo, Ma Angeles Rodriguez, M. Teresa Colomer, Elizabeth Sanchez, M. Alejandra Mazo, Juan Rubio, Fausto Rubio
CERAMICS INTERNATIONAL
(2020)
Article
Chemistry, Physical
M. T. Colomer, E. Rodriguez, M. Moran-Pedroso, F. Vattier, A. de Andres
Summary: Novel Tb-doped TiO2 hollow spheres (HSs) have been synthesized for the first time in the range of 0.0-2.0 at.%, revealing a significant impact of Tb presence and morphology on the anatase-to-rutile transition temperature. Contrary to expectations, Tb doping reduces the transition temperature and favors rutile phase formation in HSs. XPS measurements confirm the presence of Tb3+ and Tb4+ in both HSs and NPs, with Tb4+ contributing to weakened f-f emission intensity and destabilization of the anatase phase.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
M. Alejandra Mazo, M. Teresa Colomer, Aitana Tamayo, Juan Rubio
Summary: Hierarchically micro/mesoporous carbon materials derived from silicon oxycarbide show promising electrochemical performance, with specific capacitance up to 100 Fg(-1) at 40 Ag-1, high energy density of 28 Wh Kg(-1) at low power density, and significant performance at high power density. The presence of micropores and slit-shaped mesopores was found to be crucial in explaining their electrochemical response.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Applied
M. Alejandra Mazo, Maria T. Colomer, Aitana Tamayo, Juan Rubio
Summary: Novel hierarchical micro-meso-macroporous fluorine-doped silicon oxycarbide derived materials were obtained through HF etching and pyrolysis, showing good electrochemical performance and potential applications as electrodes for supercapacitors in the field of energy storage.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
M. T. Colomer, M. Simenas, J. Banys, F. Vattier, A. Gagor, M. Maczka
Summary: The effect of sintering in CO2+air on the electrical properties of YSZ green pellets was studied, revealing a detrimental impact on grain boundary conductivity and total electrical conductivity, likely due to the presence of impurities such as carbonates and oxidized or polymerized carbonaceous species.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Biochemistry & Molecular Biology
Maria Teresa Colomer, Florencia Vattier
Summary: Tb-doped TiO2 micro-hollow spheres with nano-shells were successfully synthesized by chemical implantation. The presence of Tb4+ in the resulting spheres was confirmed, and the diffusion of Tb from the inner parts to the surface was observed. The co-doping of rare earth elements and Tb doping were found to favor the formation of the rutile phase.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Jose Merida, Maria T. Colomer, Fausto Rubio, M. Alejandra Mazo
Summary: The design of a material porous microstructure with interconnected micro-meso-macropores is crucial for the development of carbon-derived materials for supercapacitor applications. In this study, hierarchical micro-meso-macroporous silicon oxycarbide-derived carbon (SiOC-DC) was successfully obtained via chlorine etching of carbon-enriched SiOC. Unconventional Raman parameters were considered to establish their relationships with the electrochemical response.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Materials Science, Ceramics
Aitana Tamayo, Fausto Rubio, M. Teresa Colomer, Carmen Arroyo, Ma Angeles Rodriguez
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2020)
Article
Materials Science, Multidisciplinary
M. T. Colomer, S. Diaz-Moreno, A. Tamayo, A. L. Ortiz, J. Chaboy
JOURNAL OF MATERIALS CHEMISTRY C
(2018)
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)
