Article
Chemistry, Inorganic & Nuclear
Raoudha Soury, Mahjoub Jabli, Khalaf M. Alenezi, Marwa Chaabene, Ashanul Haque, Hani El Moll, Regis Rein, Eid M. S. Azzam, Nathalie Solladie
Summary: A new metalloporphyrin complex was successfully synthesized and its ability to degrade organic dyes in aqueous solution was explored. The study demonstrated that the degradation ability of a metalloporphyrin complex can be fine-tuned by varying axial ligands.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Toshio Nishino, Yasuyuki Yamada, Ayumi Yamamoto, Kentaro Tanaka
Summary: A novel double-decker porphyrin complex with reversible redox behavior was prepared and shown to exhibit redox switching between oxidized and reduced states in organic solvents.
Article
Environmental Sciences
Shweta Geetanjali, Shweta Rawat, Radha Rani, Sanjay Kumar
Summary: In this study, the anodic biofilm of a miniaturized single-chambered microbial fuel cell (SMFC) was modeled using Nernst growth model equations. The electron generation behavior of the biofilm at different growth stages was investigated through linear sweep voltammetry (LSV) and polarization curve modeling. The kinetic constants of the growth model equations were determined using non-linear regression analysis. The results showed that the performance of the anode in the SMFC was significantly enhanced, leading toward model-based process controlling for future scale-up.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Gurpreet Kaur, Mangalampalli Ravikanth
Summary: A series of novel meso-thienyl and meso-furyl triphyrin(2.1.1)s were synthesized and characterized in this study, revealing significant impact of thienyl/furyl groups on the electronic properties of these compounds. Experimental observations were corroborated by theoretical calculations, indicating consistent results between theory and practice.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Huong V. H. Tran, Eojin Kim, Sokhee P. Jung
Summary: For accurate and reproducible MFC experiments, it is important to determine the time point at which MFCs produce stable cell performance. Four replicate single-chamber MFCs were tested over a period of 17 weeks using polarization and cyclic voltammetry (CV) tests. The strong MFCs showed continuous performance enhancement initially and maintained good subsequent performance, while the weak MFC experienced a performance drop initially and showed poor subsequent performance. All MFCs reached stable performance after 9 weeks. The strong MFCs exhibited significantly higher power and lower anode resistance compared to the weak MFC. However, their cathode resistances were similar. CV results demonstrated continuous increase in anodic current production in all MFCs, indicating the growth of anode biofilms; however, this increase did not correspond to an increase in MFC performance. Anodic CVs showed a typical S-shape curve, but the weak MFC-1 showed straight lines from the 9th week onwards. The weak MFC-1 exhibited smaller CV currents and thinner CV curves compared to the strong MFCs. Regression analysis revealed that anode resistance was a limiting factor for the weak MFC, while cathode resistance was a limiting factor for the strong MFCs. This suggests an operating principle of improving anodes in weak MFCs and cathodes in strong MFCs to achieve better performance.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Engineering, Environmental
Rajnish Kaur, Shiv Singh, Varun A. Chhabra, Aanchal Marwaha, Ki-Hyun Kim, S. K. Tripathi
Summary: Utilizing an active organic linker extracted from waste plastic, the efficiency and power output of microbial fuel cells (MFC) can be enhanced. Research has shown that using the terephthalic acid monomer derived from plastic waste in the synthesis of metal-organic frameworks can lead to effective electrode fabrication in MFC systems.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
Roma Agrahari, Radha Rani
Summary: A litre-scale multi-modular microbial fuel cell was operated using exo-electrogenic inoculum enriched from cow-dung for 45 days in batch mode, under three different circuit connections. Electrochemical analysis showed that the individual circuit had the highest power output and the lowest internal resistance. Additionally, the study reported COD removal rate and columbic efficiency of the MFC.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Biochemistry & Molecular Biology
Somdipta Bagchi, Manaswini Behera
Summary: Recirculating wastewater to the anode chamber with proper pH control improved the performance of microbial fuel cells, leading to higher power generation and better organics removal due to enhanced substrate availability and growth conditions for microorganisms.
PROCESS BIOCHEMISTRY
(2021)
Article
Polymer Science
Shaila Pervin, Chironjit Kumar Shaha, Subarna Karmaker, Tapan Kumar Saha
Summary: Chitosan successfully conjugates with Zn(tpps) to inhibit its demetallization and aggregation in acidic solution. The conjugation process follows pseudo-second-order kinetics and Langmuir isotherm model, with a maximum binding capacity of 151.52 µmol/g.
Article
Chemistry, Multidisciplinary
Chironjit Kumar Shaha, Bithy Sarker, Shurid Kishore Mahalanobish, Md. Sharif Hossain, Subarna Karmaker, Tapan Kumar Saha
Summary: This study investigated the conjugation of chitosan with the insulin-mimetic VO(tpps) in an aqueous medium. The conjugate formation was found to be attributed to the electrostatic interaction between the NH3+ units of chitosan and the SO3- units of VO(tpps). It was also found that chitosan enhances the stability of VO(tpps) in water. The conjugation reaction was best explained by pseudo-second-order kinetic and Langmuir isotherm models.
Article
Environmental Sciences
Kalimuthu Jawaharraj, Pawan Sigdel, Zhengrong Gu, Govarthanan Muthusamy, Rajesh Kumar Sani, Venkataramana Gadhamshetty
Summary: Photosynthetic microbial fuel cells (pMFCs) offer a promising solution for treating methanol wastewater. This study investigated the methanol oxidation capabilities of Rhodobacter sphaeroides 2.4.1 in pMFCs with a nickel foam electrode modified with plasma-grown graphene. The results showed that the Ni/Gr electrode exhibited enhanced performance, with lower charge transfer resistance and higher power density compared to the control electrodes.
ENVIRONMENTAL RESEARCH
(2022)
Article
Electrochemistry
Christophe Gerling, Matthias Hanauer, Ulrich Berner, K. Andreas Friedrich
Summary: This paper focuses on the performance optimization of membrane electrode assemblies of PEM fuel cells by accurately characterizing and modeling relevant mechanisms. Various operating conditions are studied, leading to estimation of activation energies and evaluation of resistance changes. The study highlights the importance of accurate characterization in enhancing fuel cell performance.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Analytical
Kailai Wang, Edward P. C. Lai
Summary: An electrochemical method was used to study the redox properties of zinc oxide, zinc peroxide, and sodium-doped zinc peroxide nanoparticles. Cyclic voltammetry analysis showed that the peak currents are linearly related to the mass of deposited nanoparticles. ZnO nanoparticles played a crucial role in enhancing the oxidation current of metabisulfite, while PPy coating suppressed the current enhancement by covering all nanoparticle surfaces. Additionally, meso-tetrakis(4-carboxyphenyl) porphyrin was found to be a good chemical reagent for differentiating ZnO from ZnO2 and nanoparticles.
Article
Materials Science, Multidisciplinary
Elham Mostafa, Mohamed H. Khedr, Abdalla Abdelwahab
Summary: This study successfully designed a new electro-catalyst by loading WS2 and MoS2 functionalized NiO nanoparticles onto nanodiamond and carbon support. The WS2/NiO/ND/C composite showed good electrochemical activity for oxygen reduction reaction in an alkaline medium and forced the reaction through a direct four-electron pathway. The results confirmed the potential of this nanocomposite as a hopeful cathodic electrode alternative to platinum-based catalysts.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Physical
Ibrahim Elghamry, Abdulrahman S. Alablan, Mamdouh E. Abdelsalam
Summary: A novel approach was used to synthesize a new metalloporphyrin compound TPTH-P through the reaction of a known compound, and the chemical structure of the product was verified using spectroscopic techniques. The catalytic activity of TPTH-P in the hydrogen evolution reaction was found, and the electrochemical activities of the self-assembled monolayer were characterized and evaluated using various techniques.
Article
Engineering, Environmental
Keke Xiao, Zecong Yu, Kangyue Pei, Mei Sun, Yuwei Zhu, Sha Liang, Huijie Hou, Bingchuan Liu, Jingping Hu, Jiakuan Yang
Summary: This study investigated the changes in dissolved organic nitrogen and the transformation of proteins and amino acids during anaerobic digestion of sludge treated with different pretreatments. The results showed that cysteine is an important component responsible for methane production and is resistant to degradation. The study also found that the metabolism of cysteine and methionine is absent in all sludge samples. Cysteine contributes to methane generation and the degradation of organic acids through its effect on oxidation-reduction potential and biomass activity.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2022)
Article
Environmental Sciences
Qianqian Wen, Min Ma, Huijie Hou, Wenbo Yu, Guan Gui, Qiongxiang Wu, Keke Xiao, Yuwei Zhu, Shuangyi Tao, Sha Liang, Bingchuan Liu, Jingping Hu, Jiakuan Yang
Summary: The study showed that sewage sludge treated with advanced oxidation processes (AOPs) could achieve efficient deep dewatering, and the direct recirculation of deep-dewatering filtrate back to wastewater treatment plants was feasible. Different conditioning methods affected the properties of the deep-dewatered sludge, with most heavy metals and chlorine elements remaining in the dewatered sludge cake.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Xiang Wu, Huijie Hou, Yao Liu, Shanshan Yin, Shijie Bian, Sha Liang, Chaofan Wan, Shushan Yuan, Keke Xiao, Bingchuan Liu, Jingping Hu, Jiakuan Yang
Summary: The stress response of rice under microplastic exposure involves adjustments in gene expression and metabolic pathways, with distinct responses observed in different rice subspecies. XS123 subspecies can respond to microplastic exposure stress through enhanced metabolite accumulation and energy expenditure pathways, while Y900 subspecies cannot.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Jingjing Qiu, Huijie Hou, Sha Liang, Liang Yang, Quan Gan, Shuangyi Tao, Wenbo Yu, Ruibin Lv, Lian Ding, Keke Xiao, Jingping Hu, Bingchuan Liu, Jiakuan Yang
Summary: Through KHCO3-activated pyrolysis, water leaching and acid leaching, hierarchically porous biochar (PB) was prepared from sewage sludge while simultaneously recovering nutrients. The PB samples showed high surface area and total pore volume, exhibiting excellent adsorption performance for 4-chlorophenol (4-CP).
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Environmental Sciences
Shuangyi Tao, Sha Liang, Xiang Wu, Huijie Hou, Wenbo Yu, Keke Xiao, Bingchuan Liu, Shushan Yuan, Jingping Hu, Jiakuan Yang
Summary: The study utilized biochar pyrolyzed by sludge conditioned with Fenton's reagent and lime as an efficient silicon fertilizer for rice cultivation, resulting in improved growth performance of rice plants and reduced accumulation of heavy metals and ROS. This approach presents a promising method for recycling sewage sludge as a silicon fertilizer in silicon-deficiency land.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Zecong Yu, Keke Xiao, Yuwei Zhu, Mei Sun, Sha Liang, Jingping Hu, Huijie Hou, Bingchuan Liu, Jiakuan Yang
Summary: This study compared the effects of different valent iron on anaerobic sludge digestion and found that they had similar effects on methane production rate, but showed variations in ORP, DON, and microbial community changes.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2022)
Article
Environmental Sciences
Zhen Li, Shuo Chen, Bingchuan Liu, Jiakuan Yang, Sha Liang, Keke Xiao, Jingping Hu, Huijie Hou
Summary: This study investigated a novel pretreatment strategy using SIC-H2O2 to enhance methane production in anaerobic digestion process. The results showed that SIC-H2O2 pretreatment enhanced sludge biodegradability by disintegrating sludge flocs and increasing SCOD. EEM-PARAFAC analysis revealed enhanced dissociation of TB-EPS fractions, while EPR results demonstrated the catalysis of H2O2 for generating center dot OH and high-valent (Por)FeIV(O) intermediates, promoting EPS disintegration.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Khaled Elmaadawy, Bingchuan Liu, G. K. Hassan, Xiaohe Wang, Qiuwei Wang, Jingping Hu, Huijie Hou, Jiakuan Yang, Xiaolong Wu
Summary: The study developed a new MFC system coupled with integrated fixed-film activated sludge (IFAS) to enhance treatment efficiency and energy production. Experimental results showed that the MFC-IFAS/MA system produced higher power density and nitrogen removal compared to other systems. The superior electrochemical behavior and nitrogen removal of MFC-IFAS/MA were attributed to the symbiosis between fixed-biofilm and microalgae assimilation. This study provided new insights into the application of MFC and the symbiotic relationship between microalgae and IFAS.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Chemistry, Physical
Seyed Ariana Mirshokraee, Mohsin Muhyuddin, Riccardo Morina, Lorenzo Poggini, Enrico Berretti, Marco Bellini, Alessandro Lavacchi, Chiara Ferrara, Carlo Santoro
Summary: Inspired by the circular economy strategy of 'waste to resource', this study focuses on the upcycling of Co-containing waste cathode from spent lithium-ion batteries into platinum group metal-free electrocatalysts. The derived cobalt oxide in a carbonaceous matrix exhibits excellent electrocatalytic activities for hydrogen evolution reaction and oxygen reduction reaction, with low overpotential and high onset potential.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Valerio C. A. Ficca, Carlo Santoro, Ernesto Placidi, Fabrizio Arciprete, Alexey Serov, Plamen Atanassov, Barbara Mecheri
Summary: The oxygen reduction reaction (ORR) is crucial for the conversion of energy in fuel cells, and platinum group metal-free (PGM-free) electrocatalysts show promise as alternatives to Pt/C electrocatalysts. However, evaluating the performance of PGM-free catalysts requires specific activity descriptors, and differentiating between the primary and secondary sites of these catalysts can be challenging. In this study, a method for evaluating the interaction between probing molecules and primary and secondary sites of PGM-free electrocatalysts was proposed, with the results suggesting the exchange current density as an effective tool for discriminating poisoning of specific active sites.
Editorial Material
Electrochemistry
Carlo Santoro, Matteo Grattieri, Sofia Babanova, Scott Calabrese Barton
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
Chemistry, Multidisciplinary
Seyed Ariana Mirshokraee, Mohsin Muhyuddin, Roberto Lorenzi, Giorgio Tseberlidis, Carmelo Lo Vecchio, Vincenzo Baglio, Enrico Berretti, Alessandro Lavacchi, Carlo Santoro
Summary: In the circular economy, waste litchi's skins were transformed into electrocatalysts for ORR and HER. The activated char was functionalized with transition metal-phthalocyanine, with different temperatures resulting in different performances for HER and ORR. The Ni-Co 900 sample showed better performance for HER, while the Fe 600 sample was the most active electrocatalyst for ORR with the least production of peroxide anion.
Article
Chemistry, Physical
Valerio C. A. Ficca, Carlo Santoro, Ernesto Placidi, Fabrizio Arciprete, Alexey Serov, Plamen Atanassov, Barbara Mecheri
Summary: The oxygen reduction reaction (ORR) is crucial for energy conversion in fuel cells, but requires an electrocatalyst. Platinum group metal-free (PGM-free) electrocatalysts are a promising alternative to Pt/C, but their evaluation requires specific activity descriptors. This study proposes a method for evaluating the chemisorption interaction of probing molecules with PGM-free primary and secondary sites to effectively evaluate site density. The results identify the exchange current density as a tool for discriminating specific site poisoning.
Review
Materials Science, Multidisciplinary
Qian Zhu, Jingping Hu, Bingchuan Liu, Shaogang Hu, Sha Liang, Keke Xiao, Jiakuan Yang, Huijie Hou
Summary: Microbial fuel cells have received significant attention as a sustainable technology for addressing environmental pollution and energy shortage. Recent advancements in functional materials for MFC systems include the development of enhanced anode materials, cost-effective separators/membranes, and efficient cathode catalysts to improve overall performance and efficiency. Challenges and future prospects for functional materials in MFC applications are also discussed in this review.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
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)