Article
Chemistry, Multidisciplinary
Xuefeng Zhang, Peiyao Zhang, Hongning Chen
Summary: The study introduced a novel concept of organic multiple redox semi-solid-liquid (MRSSL) suspension to enhance the volumetric capacity and energy density of Li-based hybrid flow batteries by combining active materials in both liquid and solid phases. This approach achieved a small voltage gap between liquid and solid phases, high cell voltage, and high energy density, showcasing the potential for high-performance and low-cost organic MRSSL Li-based hybrid flow batteries.
Article
Chemistry, Physical
Thaneer Malai Narayanan, Yun Guang Zhu, Emre Gencer, Gareth McKinley, Yang Shao-Horn
Summary: Manganese dioxide is a abundant and low-cost material with potential for long-duration energy storage technologies. However, the high power required for pumping semi-solid electrodes may limit their economic feasibility. By optimizing pumping power requirements, a Zn-MnO2 semi-solid flow battery can be a cheaper alternative for long discharge durations.
Article
Mechanics
J. Spendlove, X. Xu, T. Schenkel, M. A. Seaton, I Halliday, J. P. Gunn
Summary: The developed method is capable of simulating vesicles, including erythrocytes, by implementing an immersed boundary force in an adaptive interfacial region. It offers a transparent methodology, stability at high levels of deformation, and potential for simulating multiple erythrocytes. The model's utility is demonstrated through examination of steady-state properties and dynamical behavior within shear flow, highlighting its stability in handling high deformations and interactions with other vesicles.
Article
Energy & Fuels
Tao Chen, Baichen Liu, Menglian Zheng, Yansong Luo
Summary: In this study, active materials were synthesized together with carbon nanotubes (CNTs) to regulate the interaction among the dispersed particles in the suspensions, reducing the influence of the percolating network on suspensions' viscosities. The suspensions based on the LFP/CNTs composites effectively relieved the contradiction between flowability and electrochemical performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Physics, Fluids & Plasmas
E. Kirkinis, M. Olvera de la Cruz
Summary: Recent literature has shown that chiral particles driven by vorticity gradients can only separate in nonlinear or nonstationary flows. However, we demonstrate that even in the Stokes flow approximation, a base Newtonian liquid with rotational degrees of freedom can lead to chiral particle propulsion and separation. Active mechanisms such as magnetic torque, pressure gradient, and sliding wall in a channel generate spatially inhomogeneous vorticity, propelling chiral particles based on their handedness. This finding has applications in industry, biology, and medicine.
PHYSICAL REVIEW FLUIDS
(2023)
Article
Chemistry, Physical
Fujun Chu, Leibin Guo, Shaocong Wang, Yuanhui Cheng
Summary: In this study, a zinc slurry anode with 3D interconnected electron-ion networks was designed to achieve high areal capacity and uniform distribution of reactive zinc. Additionally, the zinc-iron flow battery exhibited high efficiency and excellent cycle stability.
JOURNAL OF POWER SOURCES
(2022)
Article
Electrochemistry
Fengjing Jiang, Xinjie Zhou, Dingyu Guo
Summary: This study presents a novel all-iron semi-flow battery with a 3-dimensional Fe3O4/Carbon nanotubes (CNTs) negative electrode and K4Fe(CN)(6)/K3Fe(CN)(6) aqueous solution as the positive electrolyte. It is found that two steps of redox reactions of Fe3O4 exist in the charge and discharge processes, and hydrogen evolution occurs along with the reaction of Fe(OH)(2) to Fe. Control of hydrogen evolution is achieved by adjusting the capacity of the positive electrolyte. The addition of Bi2S3 as a negative electrode additive significantly improves the specific capacity and coulombic efficiency. With its low cost, this alkaline aqueous all-iron semi-flow battery shows promising potential as a low-cost battery technology for large-scale energy storage in the future.
ELECTROCHIMICA ACTA
(2023)
Article
Engineering, Chemical
Cunyin Zhang, Leibin Guo, Chengwei Deng, Haili Huang, Yuanhui Cheng
Summary: This study constructs a multi-structured semi-solid anode by packaging multi-layered graphite felt and zinc slurry based on microporous carbon wrapped nano-ZnO (ZnO@MC). The semi-solid anode exhibits high electrochemical activity and stability in zinc-iron flow batteries, making it a promising candidate for practical applications.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Energy & Fuels
Sujat Sen, Elahe Moazzen, Sinjin Acuna, Evan Draxler, Carlo U. Segre, Elena Timofeeva
Summary: This study successfully formulated stable dispersions of nano-scale nickel hydroxide cathode with high solids content and low viscosity. The surface graft of small organic molecules played a crucial role in the colloidal stability and viscosity of the suspensions.
Article
Chemistry, Multidisciplinary
Zhang Zhuhan, Jiang Fengjing, Wu Keke, Shen Peng
Summary: Low-cost large-scale electrochemical energy storage technology, such as the iron-lead semi-flow battery, is important for the efficient utilization of clean and renewable energy. By using acetylene carbon black as a conductive additive, the battery performance, cycling stability, and energy efficiency can be significantly improved. Experimental results show that the battery performs best when the ACET mass content in the negative electrode exceeds 12.5%.
ACTA CHIMICA SINICA
(2022)
Article
Chemistry, Physical
Xinhao Li, Zihua Hu, Yang Wang, Changjiang Qin, Zhiyuan Xu, Xiaogao Chen, Shicheng Wu, Yu Tu, Yi Wang
Summary: This paper systematically investigates the shear-thickening and shear-thinning rheological properties of a non-Newtonian fluid composed of polyethylene glycol (PEG) mixed with nano-silica (Nano-SiO2) using dissipative particle dynamics (DPD) method. At low shear rates, the molecular chains of PEG are stretched, resulting in shear-thinning behavior. At high shear rates, increased contact and collision probability between Nano-SiO2 beads leads to particle aggregation and shear-thickening behavior. This study provides insights into the microscopic mechanisms of non-Newtonian fluid rheological behavior and contributes to intelligent applications.
Article
Instruments & Instrumentation
M. O. Chevrel, T. Latchimy, L. Batier, R. Delpoux, M. Harris, S. Kolzenburg
Summary: This article presents a new instrument that is designed to measure the viscosity of high temperature liquids and suspensions. The instrument is easy to operate and highly mobile, making it suitable for measuring viscosity outside the laboratory. It uses a torque sensor, a shear vane, and a thermocouple to measure torque, rotation rate, and temperature simultaneously, allowing for the characterization of rheological flow curves.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Chemistry, Physical
W. Kakaen, L. Intakhuen, A. Siyasukh, K. Punyawudho
Summary: Spherical mesoporous carbon (SMC) was prepared using water in oil emulsification combined with sol-gel polymerization and activated with carbon dioxide, exhibiting superior physical and electrochemical properties. When used as electrocatalysts, the SMCs showed fast reversible-electrochemical reactions with high kinetic rate constants for various redox couples, leading to improved performance in aqueous organic flow batteries. Overall, SMCs demonstrated outstanding power density compared to other carbon electrocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Mechanics
K. El Haddad, C. Aumnate, C. Saengow, M. A. Kanso, S. J. Coombs, A. J. Giacomin
Summary: In this study, general expressions for the complex viscosity of graphene suspensions were derived from first principles using general rigid bead-rod theory. Analytical expressions for the complex viscosity of triangular and hexagonal graphene sheets were obtained, showing good agreement with new measurements. The theory relies on suspension orientation to explain the elasticity of the liquid.
Article
Multidisciplinary Sciences
Hanifa Hanif, Sharidan Shafie
Summary: This research investigates the use of nanofluids as coolants to improve the cooling process in an electrical power system. The study takes into account the exceptional characteristics of nanofluids and considers the effects of heat radiation, viscous dissipation, and Newtonian heating. The numerical simulations and results obtained using MATLAB software are presented graphically.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Dawei Yang, Zhifu Liang, Pengyi Tang, Chaoqi Zhang, Mingxue Tang, Qizhen Li, Jordi Jacas Biendicho, Junshan Li, Marc Heggen, Rafal E. Dunin-Borkowski, Ming Xu, Jordi Llorca, Jordi Arbiol, Joan Ramon Morante, Shu-Lei Chou, Andreu Cabot
Summary: In this study, a 1D pi-d conjugated metal-organic framework (MOF), Ni-MOF-1D, is presented as an efficient sulfur host to overcome the shuttling behavior and sluggish conversion kinetics of intermediate lithium polysulfides (LiPS) in lithium-sulfur batteries (LSBs). Ni-MOF-1D exhibits a remarkable binding strength to trap soluble LiPS species and acts as an effective catalyst for S reduction and Li2S oxidation. The delocalization of electrons in the pi-d system of Ni-MOF-1D provides superior electrical conductivity, leading to excellent performance in LSBs.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Mengyao Li, Dawei Yang, Jordi Jacas Biendicho, Xu Han, Chaoqi Zhang, Kun Liu, Jiefeng Diao, Junshan Li, Jing Wang, Marc Heggen, Rafal E. Dunin-Borkowski, Jiaao Wang, Graeme Henkelman, Joan Ramon Morante, Jordi Arbiol, Shu-Lei Chou, Andreu Cabot
Summary: This study proposes an innovative sulfur host based on iodine-doped bismuth selenide (I-Bi2Se3) to address the shuttling behavior and sluggish conversion kinetics of lithium polysulfides in lithium-sulfur batteries. The I-Bi2Se3 nanosheets show a suitable composition and structure for facilitating Li+ diffusion, fast electron transportation, and strong Li polysulfide adsorption and catalytic activity. The I-Bi2Se3/S electrodes exhibit outstanding initial capacities and cycling stability in the battery tests.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Chaoqi Zhang, Ban Fei, Dawei Yang, Hongbing Zhan, Jiaao Wang, Jiefeng Diao, Junshan Li, Graeme Henkelman, Daoping Cai, Jordi Jacas Biendicho, Joan Ramon Morante, Andreu Cabot
Summary: This study reports a simple solution-based method to produce organic-inorganic superlattices and demonstrates their tunable interlayer space through the pyrolysis of organic compounds. These superlattices are shown to be excellent sulfur hosts in lithium-sulfur batteries, enabling high sulfur usages, superior rate performance, and outstanding cycling stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Kunkanadu Rajappa Prakasha, Jekabs Grins, Aleksander Jaworski, Thomas Thersleff, Gunnar Svensson, Leif Olav Josang, Anne Dalager Dyrli, Andreas Paulus, Dries De Sloovere, Jan D'Haen, Marlies K. Van Bael, An Hardy, Hemesh Avireddy, Joan Ramon Morante, Jordi Jacas Biendicho
Summary: Co-free Li-rich layered oxides with a segregated structure show high electrochemical stability and good rate capability, making them promising positive electrode materials for lithium-ion batteries. The study provides new insights into the development and commercialization of cobalt-free positive electrode materials for LIBs.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Dawei Yang, Mengyao Li, Xuejiao Zheng, Xu Han, Chaoqi Zhang, Jordi Jacas Biendicho, Jordi Llorca, Jiaao Wang, Hongchang Hao, Junshan Li, Graeme Henkelman, Jordi Arbiol, Joan Ramon Morante, David Mitlin, Shulei Chou, Andreu Cabot
Summary: This study proposes a method of adding copper selenide nanoparticles to the cathode of lithium-sulfur batteries to trap soluble lithium polysulfides and accelerate the reaction kinetics. By adjusting the crystal phase and defect density of the copper selenide, the electronic structure, affinity toward lithium polysulfides, and electrical conductivity can be controlled, resulting in improved battery performance.
Article
Materials Science, Multidisciplinary
M. A. Rodriguez-Olguin, C. Flox, R. Ponce-Perez, R. Lipin, F. Ruiz-Zepeda, J. P. Winczewski, T. Kallio, M. Vandichel, J. Guerrero-Sanchez, J. G. E. Gardeniers, N. Takeuchi, A. Susarrey-Arce
Summary: We report the finding that incorporating chlorine into NiO can transform it into an active electrocatalyst for the reduction of CO2 to formate. Chlorine-containing NiO particles synthesized by a solid-state method exhibit high Faradaic efficiency and current density for formate production. XPS and STEM-EDX analysis confirm the presence of Ni3+, Ni2+, and Cl species. DFT modeling and Pourbaix diagrams provide insights into the role of Cl on the NiO surface.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Multidisciplinary
Chao Yue Zhang, Chaoqi Zhang, Guo Wen Sun, Jiang Long Pan, Li Gong, Geng Zhi Sun, Jordi Jacas Biendicho, Lluis Balcells, Xiao Long Fan, Joan Ramon Morante, Jin Yuan Zhou, Andreu Cabot
Summary: The study demonstrates that using an external magnetic field in lithium-sulfur batteries can significantly improve the LiPS adsorption ability and Li-S reaction kinetics. The electron spin polarization of Co ions reduces electron repulsion and enhances orbital hybridization, resulting in LSBs with unprecedented performance and stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Seyedabolfazl Mousavihashemi, Sebastian Murcia-Lopez, Miguel A. Rodriguez-Olguin, Han Gardeniers, Teresa Andreu, Juan Ramon Morante, Arturo Susarrey Arce, Cristina Flox
Summary: This study introduces active sites into the electrode of VRFBs by depositing WO3 onto graphite felt, which enhances the electrocatalytic activity of the positive reaction. The results show excellent performance in terms of power density output and limiting current density.
Article
Energy & Fuels
Lluis Trilla, Lluc Canals Casals, Jordi Jacas, Pol Paradell
Summary: Lithium-Sulfur is a promising technology for the next generation of batteries. However, the behavior of lithium-sulfur batteries has a large non-observable region that can make the convergence of state estimation algorithms difficult. To overcome this issue, a dual Extended Kalman Filter is proposed, combining parameter estimation and a cell model with non-linear behavior. This filter is applied to estimate the state of charge of lithium-sulfur batteries, taking into account degradation, temperature, and self-discharge effects.
Article
Energy & Fuels
Jordi Jacas Biendicho, Pedro Mazaira, Hemesh Avireddy, Chaoqi Zhang, Pengyi Tang, Alexander Missyul, Lluis Trilla, Jordi Arbiol, Joan Ramon Morante, Andreu Cabot
Summary: A new cathode material, FeS2-decorated carbon nanofiber (CNF), has been proposed for Li-S batteries to enhance the cycling stability typically displayed by sulfur composites. The composite material shows a complex architecture with a CNF matrix hosting the sulfur and FeS2 nanoparticles acting as a catalyst. The FeS2-decorated CNF cathode delivers high discharge capacities and stable capacity retention, making it highly promising for the next generation of electrochemical energy storage devices.
Article
Chemistry, Physical
Thomas Thersleff, Jordi Jacas Biendicho, Kunkanadu Rajappa Prakasha, Elias Martinez Moreno, Leif Olav Josang, Jekabs Grins, Aleksander Jaworski, Gunnar Svensson
Summary: Chemical doping can narrow the performance gap between Co-free and Co-containing lithium ion batteries, improving their longevity and stability. Optimized doping profiles enhance the structural and chemical compatibility of the layered Mn oxide system, resulting in unobstructed lithium ion pathways.
ADVANCED ENERGY MATERIALS
(2023)
Article
Electrochemistry
Lina Tang, Shuyang Dai, Puiki Leung, Mohd Rusllim Mohamed, Yikai Zeng, Xun Zhu, Cristina Flox, Akeel A. Shah, Qiang Liao
Summary: Zinc-based hybrid-flow batteries are a promising alternative to conventional energy-storage systems due to their high energy densities, safety, and abundance. However, the performance of these batteries is limited by issues such as dendritic growth and passivation of zinc anodes. This study highlights the potential of using three-dimensional zinc anodes to improve battery performance and shows that zinc fiber anodes can yield high coulombic and voltage efficiencies.
Article
Chemistry, Multidisciplinary
Chao Yue Zhang, Xuan Lu, Xu Han, Jing Yu, Chaoqi Zhang, Chen Huang, Lluis Balcells, Alba Garzon Manjon, Jordi Jacas Biendicho, Junshan Li, Jordi Arbiol, Gengzhi Sun, Jin Yuan Zhou, Andreu Cabot
Summary: This study investigates the influence of the geometric configuration and composition of ABX spinel catalysts on their catalytic mechanisms and polysulfide conversion. The results show that Co-oh (3+) serves as the active site for breaking S-S bonds, while Co-td (2+) functions as the active site for forming S-Na bonds. This research highlights the subtle relationship between the activity and geometric configuration of spinel catalysts, offering insights for the rational development of improved catalysts by optimizing their atomic geometric configuration.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Ting Zhang, Hong Liu, Xu Han, Marti Biset-Peiro, Yunhui Yang, Inhar Imaz, Daniel Maspoch, Bo Yang, Joan Ramon Morante, Jordi Arbiol
Summary: A surface modified ZIF-8-5% catalyst was synthesized by introducing a small proportion of 2,5-dihydroxyterephthalic acid (DOBDC) into ZIF-8, showing improved selectivity (from 56% to 79%) and current density (from -4 mA cm(-2) to -10 mA m(-2)) compared to ZIF-8. Density functional theory (DFT) calculations revealed that the enhanced eCO(2)RR performance on ZIF-8-5% was due to the increased formation of *COOH intermediate resulting from successful DOBDC surface modification. This work provides a new pathway for enhancing the catalytic properties of MOFs through surface modification.
DALTON TRANSACTIONS
(2023)
