Article
Chemistry, Physical
Yimin Chen, Yuqing Miao, Xin Hu, Donggun Kim, Yi Zhu, Yuyu Su, Ye Fan, Haifa Qiao, Baozhi Yu, Ying (Ian) Chen
Summary: By synthesizing spinel multi-metal oxides (MMOs) and evaluating their catalytic properties in high-performance Li-O2 batteries (LOBs), it was found that the metal composition of MMOs affects their electrochemical performance and cycling stability. Ni-Co-Fe oxides showed stronger adsorption of oxygen and lithium peroxide, as well as better electrical conductivity, compared to Mn-Co-Fe and Ni-Mn-Fe oxides. Doping more nickel and cobalt atoms in the MMO crystal structure resulted in more oxygen vacancies, which facilitated electron and Li+ transport.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Victor A. Beck, Jonathan J. Wong, Charles F. Jekel, Daniel A. Tortorelli, Sarah E. Baker, Eric B. Duoss, Marcus A. Worsley
Summary: Porous electrodes play a crucial role in electrochemical technologies, where controlling fluid distribution, species transport, and reactive environment is vital for achieving high performance. Architectured electrodes and computational design methods offer improved power efficiency compared to conventional electrode materials.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Xiao Xia Wang, Xiaoxuan Yang, Hui Liu, Tao Han, Junhua Hu, Hongbo Li, Gang Wu
Summary: Rechargeable Zn-air batteries are considered a promising future energy source, with recent achievements in efficient oxygen electrocatalysts and air electrodes. Innovations in battery configurations, development of oxygen electrocatalysts, and optimization of air electrode structures can enhance the performance of flexible ZABs.
Article
Chemistry, Physical
Robert S. Weber
Summary: Biomass has the potential to be a source of organic electrolytes for redox flow batteries, but the design of electrocatalysts and supporting electrolytes remains a challenge despite a century of effort in organic electrochemistry. The use of a fiducial reaction to normalize reaction rates has been shown to be unsuccessful in this research.
Article
Energy & Fuels
Christina Floraki, Antonis Sapountzis, Dimitra Vernardou
Summary: Lithium-ion batteries with composite electrodes based on graphene have advantages of low cost, high safety, and good performance. Chemical vapor deposition has been used to overcome electrode issues for large-scale deployment. This mini review summarizes the synthetic strategies of graphene-based composite electrodes and their potential applications.
Article
Chemistry, Multidisciplinary
Weiyao Zhang, Xin Yang, Shiyu Zhang
Summary: A high-potential catholyte was designed for RFBs, where charged and discharged species are both gaseous nitrogen oxides (NOx). The NOx species can be liberated from the liquid electrolyte and stored in a separate gas container, allowing scale-up of storage capacity without increasing the concentration and volume of the electrolyte.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Giyun Kwon, Kyunam Lee, Jaekyun Yoo, Sechan Lee, Jihyeon Kim, Youngsu Kim, Ji Eon Kwon, Soo Young Park, Kisuk Kang
Summary: Organic redox flow batteries (ORFBs) have garnered attention for their cost-effectiveness and scalability, but their cycle performance has been a limitation. A stable triphenylamine-based molecule, 3MTPA, has been introduced as a catholyte with exceptional stability and high capacity retention, showcasing potential for highly durable ORFBs.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Maowei Hu, Abigail P. Wang, Jian Luo, Qianhusn Wei, T. Leo Liu
Summary: In this study, a series of battery tests and spectroscopic studies were conducted to understand the chemical stability of K-4[Fe(CN)(6)] and its charged state, K-3[Fe(CN)(6)]. It was found that in a strong alkaline solution (pH 14), the K-4[Fe(CN)(6)]/K-3[Fe(CN)(6)] half-cell experiences fast capacity decay under dark conditions. The studies also revealed a slow CN-/OH- exchange reaction of K-3[Fe(CN)(6)] at pH 14, leading to the irreversible decomposition of K-4/K-3[Fe(CN)(6)].
ADVANCED ENERGY MATERIALS
(2023)
Review
Green & Sustainable Science & Technology
Xiangyu Han, Liang Wang, Haoshu Ling, Zhiwei Ge, Xipeng Lin, Xingjian Dai, Haisheng Chen
Summary: This review provides an overview of the advantages and potential applications of thermochemical energy storage (TCES), focusing on metal oxide systems. The research status and technical characteristics of cobalt, manganese, and copper oxides and their mixed systems are summarized in detail. In addition, the application of perovskites in TCES is also discussed. Further research is necessary to scale up TCES for industrial applications.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Chemistry, Physical
Eduardo Sanchez-Diez, Edgar Ventosa, Massimo Guarnieri, Andrea Trovo, Cristina Flox, Rebeca Marcilla, Francesca Soavi, Petr Mazur, Estibaliz Aranzabe, Raquel Ferret
Summary: Redox-flow batteries are prime candidates for cost-effective stationary storage due to their ability to decouple power and energy, particularly in long discharge and storage scenarios. The integration of renewables is driving the development of mature and emerging redox-flow technologies, with this review providing a critical analysis of these technologies. The comprehensive overview of the status, advantages, and weaknesses of these technologies aims to facilitate understanding of different strategies for successful implementation.
JOURNAL OF POWER SOURCES
(2021)
Review
Chemistry, Multidisciplinary
Travis C. Palmer, Andrew Beamer, Tristan Pitt, Ivan A. Popov, Claudina X. Cammack, Harry D. Pratt, Travis M. Anderson, Enrique R. Batista, Ping Yang, Benjamin L. Davis
Summary: Energy storage is a chief barrier to utilizing more renewable energy on the grid. Developing new storage technologies, such as nonaqueous RFB, is crucial for independent service operators aiming to acquire gigawatts in the next 10-20 years. This type of RFB offers higher voltages and is divided into molecular, macromolecular, and redox-targeted systems.
Article
Energy & Fuels
Omar K. Bingah, Mark D. Pritzker
Summary: This study investigated the electrochemical activity of polyacrylonitrile-based graphite felt containing tungsten oxide and/or tin oxide nanocatalysts in the Ce(III)/Ce(IV) redox reaction. The combination of WO3 and SnO2 catalysts showed superior catalytic activity compared to single oxide catalysts, promoting electrolyte accessibility and improving electrode hydrophilicity. SEM images indicated a more homogeneous dispersion and prevention of oxide particle clustering with the WO3-SnO2 mixture, leading to enhanced performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Rongjiao Huang, Jue Wang, Suqin Liu, Yuliang Yang, Weiwen Deng, Yuke Su
Summary: This review summarizes the recent advances in non-precious transition metal based electrocatalysts for vanadium redox flow batteries (VRFB), primarily focusing on defect engineering, engineering of hybrid materials, and hierarchical porous structure designing. Additionally, the challenges and prospects of non-precious transition metal based materials in VRFB are proposed, aiming to inspire insights into designing and optimizing non-precious transition metal based electrocatalysts in VRFB and promoting the commercial application of VRFB.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Yanxin Yao, Zengyue Wang, Zhejun Li, Yi-Chun Lu
Summary: This study presents an aqueous metal anode based on tin, which effectively addresses the severe dendrite issues in redox flow batteries. Compared to state-of-the-art zinc metal anodes, the alkaline Sn electrode demonstrates superior performance in cycling life and areal capacity.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yunhui Lv, Zhefei Pan, Xuelong Zhou, Ningxin Xiong, Fang Wang, Yongliang Li, Qixing Wu
Summary: In this study, a flexible carbon sponge is characterized and proposed as an alternative electrode for vanadium redox flow batteries. The carbon sponge exhibits higher energy efficiency and better operating stability compared to commonly-used graphite felt electrodes.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Biotechnology & Applied Microbiology
Derek C. Kabernick, Jeff T. Gostick, Valerie C. A. Ward
Summary: The development of cascade cell-free systems and 3D-printing enzyme entrapment in microfluidic reactors can reduce the need for metabolic engineering and optimize in vivo pathway flux. This study successfully synthesized the antimalaria drug precursor, amorphadiene, using a 3D-printed microfluidic reactor with entrapped alkaline phosphatase. However, the technique of stereolithographic enzyme entrapment is still limited in scope.
BIOTECHNOLOGY AND BIOENGINEERING
(2022)
Article
Computer Science, Interdisciplinary Applications
Jeff T. Gostick, Niloofar Misaghian, Jianhui Yang, Edo S. Boek
Summary: A new algorithm for simulating volume-controlled invasion of a non-wetting phase into voxel images is presented, offering advantages over traditional pressure-based invasion methods. By incrementally increasing saturation, the algorithm allows for accurate prediction of defending phase trapping and provides a capillary pressure curve with characteristic jumps. Results show that the proposed method is a superset of the morphological approach and can achieve similar results to multiphase lattice Boltzmann simulations in less time.
COMPUTERS & GEOSCIENCES
(2022)
Article
Computer Science, Interdisciplinary Applications
Niloo Misaghian, Mehrez Agnaou, Mohammad Amin Sadeghi, Hamed Fathiannasab, Isma Hadji, Edward Roberts, Jeff Gostick
Summary: This study develops a deep learning framework to accurately predict the diffusive conductance in porous media by analyzing 3D images of pore regions extracted from tomograms. The results demonstrate high accuracy and significantly improved prediction speed.
COMPUTERS & GEOSCIENCES
(2022)
Article
Electrochemistry
Maxime van der Heijden, Rik van Gorp, Mohammad Amin Sadeghi, Jeffrey Gostick, Antoni Forner-Cuenca
Summary: This study presents a pore network modeling framework to optimize the microstructure of porous electrodes in redox flow batteries. The model is able to simulate the transport phenomena within porous electrodes at a low computational cost. The validation results show that the model successfully captures the performance of non-aqueous electrolyte, but has limitations in accurately modeling the aqueous electrolyte.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Environmental Sciences
Eric A. Chadwick, Lucas H. Hammen, Volker P. Schulz, Aimy Bazylak, Marios A. Ioannidis, Jeff T. Gostick
Summary: A new image-based technique that considers the effect of gravity during drainage process was developed and validated in this study. The results showed favorable comparisons with capillary rise and micromodel experiments, and also generated a contour map of expected error to determine when gravitational effects cannot be ignored.
WATER RESOURCES RESEARCH
(2022)
Article
Polymer Science
Kannika Onyu, Rungsima Yeetsorn, Jeff Gostick
Summary: A study investigated the utilization of bipolar plates made of TPVs, synthetic graphite, WCFF, and GS in a VRFB. The introduction of WCFF and GS improved the volumetric and surface electrical conductivity of the composite BPs. The experiment confirmed the feasibility of using the laminated BPs in a VRFB, and X-ray photoelectron spectroscopy analysis showed good durability and corrosion resistance.
Article
Engineering, Chemical
Saeed Ghanbari, Morteza Golmohammadi, Jeff Gostick
Summary: This study focuses on the development and validation of a physics-based full-scale simulation model for emulsion liquid membrane (ELM) systems, which has the capability to simulate similar systems with different geometries and experimental conditions.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Rik van Gorp, Maxime van der Heijden, Mohammad Amin Sadeghi, Jeffrey Gostick, Antoni Forner-Cuenca
Summary: The optimization of porous electrode microstructures is crucial for enhancing the performance and cost-competitiveness of electrochemical technologies. This study presents a novel approach that combines a genetic algorithm with an electrochemical pore network model for the optimization of redox flow battery electrodes. The algorithm selects the best-performing networks by manipulating the pore and throat size distributions of an artificially generated microstructure, leading to improvements in fluid distribution, pumping power, and electrochemical power. The optimization results in increased surface area and electrochemical performance. This research highlights the potential of using genetic algorithms and pore network models for optimizing porous electrode microstructures.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Kiana Amini, Eric M. Fell, Michael J. Aziz
Summary: We present a simple and inexpensive manual DC-offset method to extend the accepted voltage range of a battery cycler to negative voltages without interfering with the operation of the electrochemical cell under test or exceeding the voltage specifications of the instrument. The proposed setup is validated through short-term and long-term redox flow battery cycling, allowing the reversal of polarity required for various electrochemical cell operations.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Kiana Amini, Emily F. Kerr, Thomas Y. George, Abdulrahman M. Alfaraidi, Yan Jing, Tatsuhiro Tsukamoto, Roy G. Gordon, Michael J. Aziz
Summary: In this study, a stable and energy-dense anthraquinone compound with 2-2-propionate ether anthraquinone structure was synthesized and evaluated for use in an aqueous redox flow battery. The compound showed high stability and minimal degradation when subjected to different conditions and rejuvenation strategies. Degradation mechanisms, including side chain loss and anthrone formation, were identified. This study introduces a promising negolyte candidate for grid-scale aqueous organic redox flow batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Electrochemistry
Hao Yu, Mark Pritzker, Jeff Gostick
Summary: The effect of different positive supporting electrolytes on the performance of a bench-scale Zn-Ce redox flow battery was studied. It was found that the mixed methanesulfonic/sulfuric acid electrolyte exhibited faster kinetics, higher coulombic efficiency, and better long-term performance compared to the commonly used 4 mol l(-1) methanesulfonic acid electrolyte. The mixed electrolyte also reduced hydrogen ion crossover and increased cerium ion solubility.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Yongwook Kim, Luis P. Urbina, Tristan Asset, Marc Secanell, Plamen Atanassov, Jake Barralet, Jeff T. Gostick
Summary: Non-precious group metal (non-PGM) catalysts can significantly reduce fuel cell costs. However, non-PGM electrodes are made thicker than platinum-based electrodes due to their low volumetric activity. Optimizing the electrode composition is crucial to minimize transport losses.
JOURNAL OF POWER SOURCES
(2023)
Article
Engineering, Chemical
Antonio Rodriguez de Castro, Mehrez Agnaou, Jeff Gostick
Summary: Pore network modeling (PNM) is a cost-effective method for simulating pore-scale flow in porous media. However, there is a lack of studies on simulating the flow of non-Newtonian fluids using PNM, and experimental validation is also lacking. Previous research has shown that the choice of pore and throat shapes has a significant impact on the accuracy of the simulations, especially for shear-thinning fluids. This study aims to develop a reliable procedure to predict the flow of Newtonian and shear-thinning fluids using PNM, and the results showed that accurate predictions can be achieved by selecting the appropriate pore shape.
TRANSPORT IN POROUS MEDIA
(2023)
Article
Chemistry, Physical
Kyu Min Lee, Maedeh Pahlevaninezhad, Victoria Smith, Sara Abouali, Francesco P. Orfino, Erik Kjeang, Michael A. Pope, Edward P. L. Roberts, Jeff T. Gostick
Summary: Flow battery electrodes made of compressed electrospun carbon fibers with laser perforations for improved performance were synthesized. The compressed fibers resulted in a reduced porosity and increased volumetric surface area without significantly affecting the in-plane permeability and tortuosity. Flow battery performance tests showed that the compressed samples, with or without laser perforations, outperformed commercial carbon mats, with the perforated samples exhibiting the best performance over the entire current density range.
MATERIALS TODAY ENERGY
(2023)
Article
Electrochemistry
Min Wu, Meisam Bahari, Yan Jing, Kiana Amini, Eric M. Fell, Thomas Y. George, Roy G. Gordon, Michael J. Aziz
Summary: This study reports a highly stable and potentially inexpensive negolyte species, 2,6-N-TSAQ, for aqueous organic redox flow batteries. The authors demonstrate that pairing 2,6-N-TSAQ with potassium ferrocyanide can achieve the highest open-circuit voltage and low capacity fade rate. However, when cycled at neutral pH, 2,6-N-TSAQ exhibits a significantly higher capacity fade rate. This work highlights the importance of understanding decomposition mechanisms for the development of viable flow battery electrolytes.
BATTERIES & SUPERCAPS
(2022)
