Article
Materials Science, Multidisciplinary
Keshu Dai, Qinyun Wang, Yuting Xie, Miao Shui, Jie Shu
Summary: The perovskite-type oxide LLTO prepared by high temperature solid-phase method exhibits high capacity, cycle stability, and excellent rate performance as a negative electrode material for lithium-ion batteries.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yao-Bing Fang, Wen Zheng, Tao Hu, Li Li, Wen-Hui Yuan
Summary: Energy issues have gained global attention, and the development of electrochemical energy storage devices is crucial. This study proposes a high-performance dual-ion battery system with a graphite cathode and SnS2 anode, exhibiting excellent capacity and self-discharge performance.
Article
Chemistry, Physical
Mariya S. Shchelkanova, Georgyi Sh Shekhtman, Svetlana Pershina, Alexander A. Pankratov, Anna Khodimchuk, Victoria Pryakhina
Summary: In this study, sodium-vanadium oxide NaV3O8 was synthesized and characterized using various techniques. It showed good thermal stability, electronic conductivity, and cyclic performance in solid state cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biochemistry & Molecular Biology
Syama Lenus, Pallavi Thakur, Sai Smruti Samantaray, Tharangattu N. Narayanan, Zhengfei Dai
Summary: Metal phosphorus trichalcogenide (MPX3) materials have attracted attention as potential host electrodes in lithium batteries due to their environment-friendliness and advantageous X-P synergic effects. Two-dimensional iron thio-phosphate (FePS3) nanoflakes were synthesized using a salt-template synthesis method, and their electrochemical application in a high-capacity lithium primary battery (LPB) demonstrated a high specific capacity, energy density, and power density. The observed discharge mechanism of the FePS3-based primary cell and the findings from post-mortem analyses provide mechanistic insight into its high capacity.
Article
Electrochemistry
Qingping Hou, Douglas G. Ivey
Summary: Highly crystalline, nanosize Mn2O3 powder is synthesized and used as the cathode in aqueous zinc-ion batteries. The electrodes show good cycling performance and stability, with a specific capacity of 211 mAh g(-1) retained after 200 cycles at a current density of 500 mA g(-1) and 93% capacity retention. The energy storage mechanism of Mn2O3 is proposed to be a chemical conversion reaction type, and capacity fading is attributed to the incomplete reversibility of the reaction.
BATTERIES & SUPERCAPS
(2022)
Article
Chemistry, Physical
Xu-Feng Zang, Fang Chen, Yixuan Jiang, Menghang Su, Renbo Deng, Tong Li
Summary: Film-forming electrolyte additives have a significant impact on the interfacial chemistries and practical performances of LiCoO2-based lithium-ion batteries. In this study, the effects of four typical additives, including vinylene carbonate (VC), 1,3-propane sultone (PS), fluoroethylene carbonate (FEC), and adiponitrile (ADN), on the discharge capacities and stabilities of LiCoO2-based batteries at different temperatures were evaluated. The results reveal that these additives can influence the performance of the batteries by adjusting the morphologies and protection effects of the cathode/electrolyte interphase (CEI) films.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Sixu Deng, Qian Sun, Minsi Li, Keegan Adair, Chuang Yu, Junjie Li, Weihan Li, Jiamin Fu, Xia Li, Ruying Li, Yongfeng Hu, Ning Chen, Huan Huang, Li Zhang, Shangqian Zhao, Shigang Lu, Xueliang Sun
Summary: Through X-ray characterization and electrochemical analysis, it was found that residual lithium compounds on the surface of Ni-rich LiNi0.8Mn0.1Co0.1O2 (NMC811) are the main reason triggering the oxidation of sulfide solid-state electrolytes (SSEs), inducing severe side-reactions at the cathode interface and structural degradation of NMC811. Cleaning the cathode surface can significantly suppress the degradation of the cathode interface, thereby improving the performance of the battery.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Jinyang Dong, Feng Wu, Jiayu Zhao, Qi Shi, Yun Lu, Ning Li, Duanyun Cao, Wenbo Li, Jianan Hao, Xulai Yang, Lai Chen, Yuefeng Su
Summary: Through the design of an amine-functionalized mesoporous molecular sieve additive with active oxygen/water scavenging capability, a multifunctional self-reconstructive CEI layer with modified mechanical/electrochemical stability was constructed, resolving the issues induced by collaboration failure mechanism between manganese-based oxide and electrolyte in lithium-ion batteries. This design provides new insights into achieving a high-stability and high-energy-density lithium-ion battery system.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Yanan Jiao, Jian Qin, Hirbod Maleki Kheimeh Sari, Dejun Li, Xifei Li, Xueliang Sun
Summary: Combining balanced CO2 emissions with energy storage technologies is an effective way to alleviate global warming, and the Li-CO2 electrochemical system, with its promising energy storage and CO2 capture strategy, is attracting attention. However, the system is still in early stages of development and faces challenges due to slow kinetics of the CO2 electrochemical reaction.
ENERGY STORAGE MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Yusuke Morino, Akihiro Shiota, Satoshi Kanada, Willy Shun Kai Bong, Koji Kawamoto, Yasushi Inda, Hirofumi Tsukasaki, Shigeo Mori, Yasutoshi Iriyama
Summary: Coating the surface of all-solid-state battery cathode active material with sulfide-based solid electrolytes is crucial for enhancing battery performance. Lithium niobate (LiNbO3) is commonly used as a coating material but exhibits low durability at high charge potentials and temperatures. In this study, new hybrid coating materials of lithium niobate (Li-Nb-O) and lithium phosphate (Li-P-O) were developed, and the influence of the P/(Nb + P) ratio on durability performance was investigated. The substitution of P resulted in improved durability and lower interfacial resistance, with the hybrid coating LiP x Nb1-x O3 (x = 0.5) performing the best. Various analytical techniques were used to analyze the coated cathode active materials and reveal the mechanism behind the improved durability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Ying Zhang, Ting Zeng, Wei Yan, Dongxue Huang, Yuanyuan Zhang, Qijin Wan, Nianjun Yang
Summary: This study utilizes a mixture of alizarin red S and p-phenylenediamine redox electrolytes dissolved in KOH solution as the anodic electrolyte for SCs, resulting in a flexible SC device that maintains high performance even under different bending conditions.
Article
Electrochemistry
Swapnil Varhade, Gabriel Meloni, Emmanuel Batsa Tetteh, Monjoo Kim, Simon Schumacher, Thomas Quast, Corina Andronescu, Patrick Unwin, Wolfgang Schuhmann
Summary: Scanning electrochemical cell microscopy (SECCM) was used to investigate the interaction between aqueous alkaline electrolyte and a glassy carbon electrode surface. Numerical simulations were performed to study the impact of droplet geometry and size on the voltammetric signature. The study provides insights into droplet-surface interactions, which are crucial for a quantitative interpretation of SECCM measurements.
ELECTROCHIMICA ACTA
(2023)
Article
Spectroscopy
Hao Yuan, Xiong-Feng Zhou, Yong Nie, Yao Li, Jian-Ping Liang, De-Zheng Yang, Er-Yan Yan, Wen-Chun Wang, Yong Xu
Summary: Atmospheric pressure electrolyte cathode discharge plasma coupled with temporal resolved atomic emission spectra was used to analyze copper element, optimizing experimental conditions and improving detection sensitivity. Gas temperature and electron density were found to play important roles in the spatiotemporal evolution of discharge and the enhancement of detection sensitivity for elemental analysis.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2021)
Article
Chemistry, Multidisciplinary
Junxiang Liu, Jiaqi Wang, Youxuan Ni, Jiuding Liu, Yudong Zhang, Yong Lu, Zhenhua Yan, Kai Zhang, Qing Zhao, Fangyi Cheng, Jun Chen
Summary: This study reveals that the compositions of cathode electrolyte interphases (CEIs) are mainly controlled by abundant species in the inner Helmholtz layer (IHL), and the properties of CEIs can be modulated by adding coating materials, thus improving the cycling stability of batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Applied
Bing Jiang, Jingru Li, Bi Luo, Qizhang Yan, Hao Li, Lehao Liu, Lihua Chu, Yingfeng Li, Qiaobao Zhang, Meicheng Li
Summary: Li-rich layered oxide cathodes have high operating potential and specific capacity, but suffer from structural instability and parasitic reactions at high potential. By adding LiPO2F2 electrolyte additive, the cycling stability of the Li1.14Ni0.133Co0.133Mn0.544O2 cathode is improved, leading to enhanced interfacial stability and mitigated interfacial side reactions. This study provides new insights for enhancing high-potential Li-rich layered oxide batteries.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Liangyou Lin, Timothy W. Jones, Terry Chien-Jen Yang, Noel W. Duffy, Jinhua Li, Li Zhao, Bo Chi, Xianbao Wang, Gregory J. Wilson
Summary: Over the past decade, there has been significant progress in the development of perovskite solar cells (PSCs), with improvements in power conversion efficiency and long-term stability making them competitive candidates for next-generation photovoltaics. This review focuses on the advancements in inorganic electron transport materials (ETMs) for PSCs, particularly the three most prevalent materials (TiO2, SnO2, and ZnO) and their applications in tandem devices. Strategies to optimize the performance of the electron transport layer (ETL) in PSCs and the impact of ETL on device stability and efficiency are also discussed.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Electrochemistry
Marveh Forghani, Julien McCarthy, Amanda P. Cameron, Sofia B. Davey, Scott W. Donne
Summary: This study examined the semiconducting nature of electrodeposited manganese dioxide (gamma-MnO2) and its effects on pseudo-capacitive electrode behavior in neutral electrolytes through a combination of cyclic voltammetry, step potential electrochemical spectroscopy, and electrochemical impedance spectroscopy. The analysis of EIS data using the Mott-Schottky equation revealed both n-type and p-type behavior for the manganese dioxide electrode, with determined flat band potentials. The study concluded that the electrochemically active surface area was more closely related to the geometric surface area.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Electrochemistry
Jialong Wang, Md Monirul Islam, Scott W. Donne
Summary: This study describes a modified Swagelok electrochemical cell to characterize individual electrode behavior in the non-aqueous Li-LiMn2O4 system. The outcomes include variations in lithium negative electrode potential with applied current, lithium corrosion and passivation in the electrolyte, and LiMn2O4 dissolution with cycling, revealing Mn(III) as the dissolution product. The application of this technique to other systems, such as electrode materials and electrolytes, is also discussed.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Marveh Forghani, Amanda P. Cameron, Scott W. Donne
Summary: This study compares and contrasts the mechanisms of charge storage in four typical electrochemical capacitor systems based on activated carbon, ruthenium dioxide, manganese dioxide, and nickel hydroxide. While activated carbon and ruthenium dioxide store delocalized charge, manganese dioxide localizes charge in alkaline electrolytes. Nickel hydroxide, on the other hand, exhibits charge localization in alkaline electrolytes due to its two-phase redox mechanism.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Danielle Butts, Juergen Schoiber, Christopher Choi, Guenther J. Redhammer, Nicola Huesing, Scott Donne, Bruce Dunn
Summary: This paper converted the well-known superionic conductor Na beta''-Al2O3 into a high-rate Na+ negative electrode by substituting Fe for Al, achieving mixed electron-ion conduction. The Fe-substituted Na beta''-Al2O3 exhibited high ionic conductivity and high-rate performance, with a surface-controlled charge-storage mechanism responsible for the latter. This transformation provides design rules for achieving high-rate redox electrodes from solid-state electrolytes.
CHEMISTRY OF MATERIALS
(2021)
Article
Electrochemistry
Sofia B. Davey, Amanda P. Cameron, Kenneth G. Latham, Scott W. Donne
Summary: This study used step potential electrochemical spectroscopy to characterize the dynamics of charge storage on a planar non-porous glassy carbon electrode in an aqueous electrolyte, revealing diffuse nature of electrolyte charge storage that extends a substantial distance even for concentrated electrolytes. This finding challenges the expected parallel planes of charge for double layer formation at the interface and has implications for the use of porous materials.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Masud Hassan, Yanju Liu, Ravi Naidu, Jianhua Du, Fangjie Qi, Scott W. Donne, Md Monirul Islam
Summary: The study synthesized HNT-BC@Alg composite adsorbents for the removal of heavy-metal ions in water, showing good adsorption performance and rapid adsorption kinetics, with high removal efficiency observed in a mesoporous structure rich in functional groups. The removal of heavy-metal ions is significantly influenced by siloxane groups, oxygen-containing functional groups, as well as hydroxyl and carboxyl groups in the adsorbent.
Article
Engineering, Environmental
Changhong Wang, Kaiqi Jiang, Timothy W. Jones, Shenghai Yang, Hai Yu, Paul Feron, Kangkang Li
Summary: The research introduces a novel electrochemical CO2 capture technology that utilizes electrowinning to achieve low energy consumption for CO2 capture and solvent regeneration. This technology shows competitiveness in energy performance and has the potential for practical application.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
Amanda P. Cameron, Sofia B. Davey, Caitlin L. Callahan, Scott W. Donne
Summary: This study provides insights into the structure and behavior of the electrified interface between a planar non-porous glassy carbon electrode and a 0.5 M Na2SO4 aqueous solution. By using a rotating glassy carbon disk electrode, it is observed that increasing rotation rates lead to decreasing boundary layer thicknesses and interfacial capacitance. This suggests that electrolyte counter charge extends significantly into the electrolyte due to the dissipation of counter charge through convective flow outside the macroscopically thick boundary layer.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Genxiang Wang, Junxiang Chen, Kangkang Li, Junheng Huang, Yichao Huang, Yangjie Liu, Xiang Hu, Baisheng Zhao, Luocai Yi, Timothy W. Jones, Zhenhai Wen
Summary: Electrolytic systhesis technique is considered a promising avenue for producing fuels or chemicals, with the potential to convert CO2 into value-added products for carbonneutral goals. Challenges remain in practice due to the lack of high-performance and cost-effective electrocatalysts, as well as high energy consumption.
Article
Electrochemistry
Thibaud Guillemin, Camille Douard, Anthony Impellizzeri, Christopher P. Ewels, Bernard Humbert, Christophe Lethien, Scott W. Donne, Jean Le Bideau, Thierry Brousse
Summary: We investigated the contribution of pseudocapacitance to the overall capacitance of MnO2 electrodes in pure and alkaline-doped ionic liquids using step potential electrochemical spectroscopy (SPECS) and in situ Raman spectroscopy. Pseudocapacitive charge storage accounted for over half of the total capacitance with alkaline-doped ionic liquids. In situ Raman spectroscopy provided insight into the reversible ion intercalation in the MnO2 structure.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Shi Tang, Jueming Bing, Jianghui Zheng, Jianbo Tang, Yong Li, Mohannad Mayyas, Yongyoon Cho, Timothy W. Jones, Terry Chien-Jen Yang, Lin Yuan, Mike Tebyetekerwa, Hieu T. Nguyen, Michael P. Nielsen, N. J. Ekins-Daukes, Kourosh Kalantar-Zadeh, Gregory J. Wilson, David R. McKenzie, Shujuan Huang, Anita W. Y. Ho-Baillie
Summary: The power conversion efficiency of metal halide perovskite solar cells fabricated by gas quenching has increased significantly to 25.5% within a decade, with strategies like incorporating potassium iodide and n-hexylammonium bromide being employed to improve grain boundary properties, reduce traps, and enhance the device's built-in potential.
CELL REPORTS PHYSICAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Matthew G. Barr, Sylvain Chambon, Adam Fahy, Timothy W. Jones, Matthew A. Marcus, A. L. David Kilcoyne, Paul C. Dastoor, Matthew J. Griffith, Natalie P. Holmes
Summary: The internal structure of nanoparticles can be controlled by adjusting the surface energy difference, allowing for different structures such as core-shell, molecularly intermixed, or shell-core. This approach can be used to customize nanoparticulate colloidal inks for a wide range of functional printing applications, reshaping the nanoengineering toolkit for waterborne colloidal dispersions and printed electronics.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Liangyou Lin, Camilla Lian, Timothy W. Jones, Robert D. Bennett, Blago Mihaylov, Terry Chien-Jen Yang, Jacob Tse-Wei Wang, Bo Chi, Noel W. Duffy, Jinhua Li, Xianbao Wang, Henry J. Snaith, Gregory J. Wilson
Summary: Using transition metal complexes as hole-transport materials can significantly enhance the power conversion efficiency of perovskite solar cells to above 10% and demonstrate excellent photostability.
CHEMICAL COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Kenneth G. Latham, Marveh Forghani, Wesley M. Dose, Jessica A. Allen, Scott W. Donne
Summary: This study explored the influence of four different attached counter ions on the physicochemical properties and electrochemical performance of carbon structures nitrogen-doped via hydrothermal carbonization of ammonium. The results showed significant differences in nitrogen incorporation levels, physicochemical properties, and supercapacitor performance among the different counter ions. The findings suggest that the choice of counter ion can play a crucial role in tailoring the properties of the resulting material.
MATERIALS ADVANCES
(2021)
