Article
Nanoscience & Nanotechnology
Atsushi Okazawa, Takayuki Kakuchi, Kosuke Kawai, Masashi Okubo
Summary: This Perspective summarizes the recent progress of iron-based catholytes in aqueous redox-flow batteries (RFBs), highlighting their advantages in providing a wide range of cell performance. The molecular design of iron-based catholytes, such as ligand functionalization and counter ion mixing, allows for improved solubility, redox potential, and energy density. A simple evaluation method of the redox potential using calculated energy levels is also demonstrated. The design strategy of iron-based catholytes for advanced aqueous RFBs is rationalized.
Review
Chemistry, Multidisciplinary
Fulong Zhu, Wei Guo, Yongzhu Fu
Summary: Redox flow batteries (RFBs) offer vast potential for large-scale applications, with their unique configuration allowing energy and power to be decoupled. Aqueous RFBs, known for their inexpensive supporting electrolytes and high safety, have seen a surge in research on advanced functional materials. This review summarizes the types of aqueous RFBs, the design principles for redox-active materials, and the development of functional materials for electrodes and membranes.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Yingchi Cheng, Derek M. Hall, Jonathan Boualavong, Robert J. Hickey, Serguei N. Lvov, Christopher A. Gorski
Summary: This study explores the use of hydrotropes to increase the aqueous solubility of redox-active compounds in flow batteries. The results show that the solubility of compounds varies with hydrotrope type and concentration, with larger changes at higher concentrations. The presence of a hydrotrope decreases diffusion coefficients of some compounds without altering their electrochemical properties significantly.
Article
Chemistry, Multidisciplinary
Songshan Bi, Huimin Wang, Yanyu Zhang, Min Yang, Qingjie Li, Jinlei Tian, Zhiqiang Niu
Summary: This study achieves a six-electron redox chemistry of I2 electrodes through the synergistic effect of redox-ion charge carriers and halide ions in aqueous electrolytes, leading to improved energy density and excellent performance of I2-based batteries. This work broadens the horizon for the design of high-energy aqueous I2-based batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Andrea Hamza, Flora B. Nemeth, Adam Madarasz, Anton Nechaev, Petri M. Pihko, Pekka Peljo, Imre Papai
Summary: N-functionalized pyridinium frameworks derived from vitamers of vitamin B6 were computationally screened as negative electrode materials for aqueous organic flow batteries. A molecular database of related pyridinium derivatives was generated using a computational protocol combining semiempirical and DFT methods. The predicted reduction potentials of the pyridinium frameworks varied widely, but pyridoxal derivatives, especially those with electron withdrawing substituents, had potentials compatible with the stability of aqueous electrolytes. A new computational tool was used to analyze the stability of radicals formed upon one-electron reduction.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Mengqi Gao, Manohar Salla, Feifei Zhang, Yongfeng Zhi, Qing Wang
Summary: Redox flow batteries (RFBs) are a reliable and durable grid-scale electricity storage technology. The performance and cost of RFB systems are largely determined by the ion-exchange membrane (IEM), which is a critical component of RFBs. This study investigates the origin and impact of membrane fouling on RFB systems, providing useful guidance for membrane selection and optimization.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Caixing Wang, Bo Yu, Yuzhu Liu, Huaizhu Wang, Zewen Zhang, Congxin Xie, Xianfeng Li, Huamin Zhang, Zhong Jin
Summary: This study reports a highly soluble N-alkyl-carboxylate-functionalized derivative of 2,6-diaminoanthraquinone (DAEAQ) as an anolyte in ARFBs, showing high voltage and long cycling life; Alkaline ARFBs based on DAEAQ anolyte and potassium ferrocyanide catholyte achieve high open-circuit voltage and excellent performance under alkaline conditions.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Noura Rahbani, Piotr de Silva, Emmanuel Baudrin
Summary: Transition metal complexes are potential redox mediators for redox flow batteries due to their adjustable electrochemical potentials. However, there is a need for reliable and efficient tools to predict their reduction potentials. This study establishes a suitable density functional theory protocol for prediction by using experimental data of aqueous iron complexes with bidentate ligands, and cross-validates it with different complexes in the redox-flow literature. The accuracy of prediction is found to be more influenced by the solvation model than the functional or basis set. The smallest errors are obtained using the COSMO-RS solvation model (mean average error (MAE)=0.24 V), while a general deviation from experimental results is observed with implicit solvation models. For a set of similar ligands, linear regression can be used for correction (MAE=0.051 V for the initial set of iron complexes).
Article
Chemistry, Multidisciplinary
Nadia L. Farag, Rajesh B. Jethwa, Alice E. Beardmore, Teresa Insinna, Christopher A. O'Keefe, Peter A. A. Klusener, Clare P. Grey, Dominic S. Wright
Summary: A series of triarylamines were synthesized and tested as catholytes in all-aqueous redox flow batteries. Tris(4-aminophenyl)amine showed the highest potential as a candidate. However, polymerization occurred during electrochemical cycling, leading to a decrease in active material and limitation in ion transport. The use of a mixed electrolyte system of H3PO4 and HCl inhibited polymerization, resulting in improved electrochemical performance.
Article
Electrochemistry
Carlo Caianiello, Luis F. Arenas, Thomas Turek, Rene Wilhelm
Summary: A novel tetracationic viologen based on dimethylaminoethanol is reported as a negative electrolyte for aqueous-organic flow batteries. By replacing the charged moieties, the solubility and electronic structure of the compound were improved. The compound paired with a TEMPOL positive electrolyte shows great potential for enhancing energy density in viologen flow batteries.
BATTERIES & SUPERCAPS
(2022)
Article
Chemistry, Physical
Caixing Wang, Yanrong Wang, Meng Tao, Bo Yu, Kaiqiang Zhang, Jie Wei, Yuzhu Liu, Pengbo Zhang, Guochun Ding, Zuoxiu Tie, Jianyu Cao, Zhong Jin
Summary: This study reports a scalable and convenient synthesis method for 6-quinoxalinecarboxylic acid (QCA) anolyte material with high solubility and ultralow redox potential, which has been successfully applied in AORFBs. This research result is of great significance for the development of advanced AORFBs for large-scale energy storage applications.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Lujie Jin, Yujin Ji, Hongshuai Wang, Lifeng Ding, Youyong Li
Summary: This Perspective focuses on how machine learning technology solves key problems in first-principles simulation and design of AMIBs, accelerating property prediction and providing physicochemical insights. Furthermore, it highlights the potential for a new paradigm in direct/inverse design with the increasing number of databases, skills, and ML technologies for AMIBs.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Review
Chemistry, Physical
Zhengnan Ju, Qin Zhao, Dongliang Chao, Yang Hou, Hongge Pan, Wenping Sun, Zhongyong Yuan, Hui Li, Tianyi Ma, Dawei Su, Baohua Jia
Summary: This review highlights the strategies proposed so far to pursue high energy density aqueous batteries, focusing on various aspects such as electrolytes, electrode chemistry, cathode materials, anode materials, and battery configurations. The emerging electrochemistry and the future development of high-energy aqueous batteries are also discussed.
ADVANCED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Bebin Ambrose, Raghupandiyan Naresh, Murugavel Kathiresan, Mani Ulaganathan, Pitchai Ragupathy
Summary: In this study, the solubility of aqueous organic redox flow batteries (AORFBs) was enhanced by modifying the chemical structure, resulting in lower redox potential and reduced radical dimerization. The modified batteries exhibited excellent round-trip efficiency and low self-discharge behavior.
Article
Chemistry, Physical
Guangtao Cong, Yi-Chun Lu
Summary: Redox flow batteries (RFBs) are recognized as the primary choice for large-scale energy storage. However, the high cost and low energy density of existing inorganic metal-based electrodes have hindered their broad deployment. Redox-active organic molecules (ROMs) have been explored for their potential as electrodes in RFBs due to their low cost and highly tunable structure. Strategies to improve the energy density of RFBs include expanding the cell voltage, maximizing the practical concentration of active materials, and realizing multi-redox process.
ACTA PHYSICO-CHIMICA SINICA
(2022)
Article
Chemistry, Physical
Mei Gui Vanessa Wee, Amutha Chinnappan, Runxin Shang, Poh Seng Lee, Seeram Ramakrishna
Summary: Cooling processes, from residences to industries, require a lot of energy and are essential. This study introduces MIL-101(Cr), a new desiccant, to heat exchangers for more efficient cooling. By improving the synthesis method and using a special binder, the MIL-101(Cr)-coated heat exchanger shows improved water uptake capacity and lower regeneration temperature.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ao Zhen, Guanyu Zhang, Ao Wang, Feng Luo, Jiehua Li, Hong Tan, Zhen Li
Summary: In this study, a solvent-free microemulsion method was used to synthesize waterborne polyurethane (WPU) material with high retention of mechanical properties and satisfactory water absorption rates. The material showed excellent biocompatibility and has broad application potential in the field of biomedicine.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Wensong Ge, Rui Wang, Xiaoyang Zhu, Houchao Zhang, Luanfa Sun, Fei Wang, Hongke Li, Zhenghao Li, Xinyi Du, Huangyu Chen, Fan Zhang, Huifa Shi, Huiqiang Hu, Yongming Xi, Jiankang He, Liang Hu, Hongbo Lan
Summary: This paper reviews the research on the surface tension of eutectic gallium-indium alloys (EGaIn) in the field of stretchable electronics. It covers the principles of oxide layer formation, factors influencing surface tension, and methods for surface modification of liquid metals. The paper also discusses the applications of EGaIn surface modification in different fields and highlights the challenges still faced and the future outlook.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiang Song, Lianghao Jia, Zhengen Wei, Tao Xiang, Shaobing Zhou
Summary: This paper provides an overview of the application, preparation, and role of biomimetic structures in solar evaporators with improved evaporation rate and lifetime.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Wei Yuan, Qian Deng, Dong Pan, Xiang An, Canyang Zhao, Wenjun Su, Zhengmin He, Qiang Sun, Ran Ang
Summary: Optimizing the performance of n-type PbTe thermoelectric materials is crucial for practical applications. Dynamic doping has emerged as an effective method to improve the performance of n-type PbTe by optimizing the carrier concentration. This study demonstrates the significance of Mn alloying in enhancing the performance of Ag-doped n-type PbTe by creating a hierarchical structure to suppress thermal transport and improving the Seebeck coefficient.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiaoyan Wang, Meiqi Geng, Shengjun Sun, Qian Xiang, Shiyuan Dong, Kai Dong, Yongchao Yao, Yan Wang, Yingchun Yang, Yongsong Luo, Dongdong Zheng, Qian Liu, Jianming Hu, Qian Wu, Xuping Sun, Bo Tang
Summary: This review provides a comprehensive analysis of the progress and challenges in the field of bifunctional electrocatalysts and efficient electrolyzers for seawater splitting. It summarizes recent advancements and proposes future perspectives for highly efficient bifunctional electrocatalysts and electrolyzers.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Jason K. Phong, Christopher B. Cooper, Lukas Michalek, Yangju Lin, Yuya Nishio, Yuran Shi, Huaxin Gong, Julian A. Vigil, Jan Ilavsky, Ivan Kuzmenko, Zhenan Bao
Summary: Dynamic block copolymers (DBCPs) combine the phase separation of traditional block copolymers with the supramolecular self-assembly of periodic dynamic polymers, resulting in the spontaneous self-assembly of high aspect ratio nanofibers with well-ordered PEG and PDMS domains. DBCPs with a periodic block sequence exhibit superior properties compared to those with a random sequence, including delayed onset of terminal flow and higher ionic conductivity values.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Hong Kyu Lee, Yasaswini Oruganti, Jonghyeon Lee, Seunghee Han, Jihan Kim, Dohyun Moon, Min Kim, Dae-Woon Lim, Hoi Ri Moon
Summary: This study reports the moisture-triggered proton-conductivity switching behavior in Zn5FDC MOFs induced by the presence and absence of coordinating solvents, which illustrates the significant role of coordinating solvents in conductivity variation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Bommaramoni Yadagiri, Sanjay Sandhu, Ashok Kumar Kaliamurthy, Francis Kwaku Asiam, Jongdeok Park, Appiagyei Ewusi Mensah, Jae-Joon Lee
Summary: The molecular engineering of the interface modulator between the perovskite and hole transporting material is crucial for achieving satisfactory performance and stability of perovskite solar cells. In this study, cruciform-shaped dual functional organic materials were employed as surface passivation and hole transporting interfacial layers in perovskite solar cells. The use of these materials significantly improved the power conversion efficiency of the solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Joaquin Martinez-Ortigosa, Reisel Millan, Jorge Simancas, Manuel Hernandez-Rodriguez, J. Alejandro Vidal-Moya, Jose L. Jorda, Charlotte Martineau-Corcos, Vincent Sarou-Kanian, Mercedes Boronat, Teresa Blasco, Fernando Rey
Summary: This study investigates the synthesis of all-silica RTH zeolites using triisopropyl(methyl)phosphonium as the organic SDA. The results show the formation of two distinct crystalline phases under different synthesis conditions, with fluoride bonding to different silicon sites. It demonstrates the possibility of controlling the placement of fluoride in RTH zeolites through synthesis conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Luyao Zheng, Cong Liu, Wenbiao Zhang, Boxu Gao, Tianlan Yan, Yahong Zhang, Xiaoming Cao, Qingsheng Gao, Yi Tang
Summary: This study successfully improves the efficiency and stability of water splitting by constructing a heterostructured electrocatalyst. The catalyst shows extraordinary performance and could offer an effective approach for the sustainable production of hydrogen.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Carlos A. Campos-Roldan, Raphael Chattot, Frederic Pailloux, Andrea Zitolo, Jacques Roziere, Deborah J. Jones, Sara Cavaliere
Summary: This study systematically evaluated the hydrogen evolution/oxidation reactions on a series of Pt-rare earth nanoalloys in alkaline media, and identified the effect of the lanthanide contraction. The experimental results revealed that the chemical nature of the rare earth modulates the adsorption and mobility of oxygenated-species, enhancing the kinetics of the reactions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Sara Frank, Mads Folkjaer, Mads L. N. Nielsen, Melissa J. Marks, Henrik S. Jeppesen, Marcel Ceccato, Simon J. L. Billinge, Jacopo Catalano, Nina Lock
Summary: This study investigates the thermal decomposition of ZIF-67 and its correlation with structural evolution and electrocatalytic performance. The researchers used in situ X-ray absorption spectroscopy and total scattering techniques to analyze the process. They found that disorder emerges at lower temperatures and that extending the pyrolysis process can result in materials with superior electrochemical properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Zi-Yang Zhang, Hao Tian, Han Jiao, Xin Wang, Lei Bian, Yuan Liu, Nithima Khaorapapong, Yusuke Yamauchi, Zhong-Li Wang
Summary: By constructing Cu-0-Cu+-NH2 composite interfaces with the assistance of SiO2, the electrochemical CO2 reduction reaction (CO2RR) achieves high Faraday efficiency and current density for C2+ production, improving the productivity of carbon cycle.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ting Wang, Ruijuan Zhang, Pengda Zhai, Mingjie Li, Xinying Liu, Chaoxu Li
Summary: This study successfully exfoliated COFs using a simple electrochemical method, which resulted in improved photocatalytic performance for COFs and enriched the fabrication approach of COF exfoliation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)