Article
Environmental Sciences
Juan Jose Parajo, Pablo Vallet, Luis Miguel Varela, Maria Villanueva, Josefa Salgado
Summary: The study found that aprotic ILs are more toxic than protic ILs, and aromatic ILs are more toxic than non-aromatic ILs. Mixing inorganic salts with ILs, especially certain salts like Al(NO3)(3)center dot 9H(2)O, significantly increases toxicity levels.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Polymer Science
Robert Loewe, Thomas Hanemann, Tatiana Zinkevich, Andreas Hofmann
Summary: Increasing side chain length of the studied ammonium-based polymerized ionic liquids results in lower glass transition temperatures and higher ionic conductivity values. However, the addition of conducting salt to the polymer membranes decreases both the glass transition temperatures and the ionic conductivity values, while higher lithium-ion mobility is observed in samples with higher conducting salt content.
Article
Chemistry, Physical
Lai Wei, Xin Xu, Kang Xi, Linghao Zhang, Xiang Cheng, Yuelang Lan, Sen Jiang, Yue Lei, Junying Yin, Haihua Wu, Yunfang Gao
Summary: Composite solid-state polymer electrolytes (CSPEs) with high ionic conductivity and wide electrochemical window are prepared by absorbing ionic liquids into metal-organic frameworks. This strategy improves the performance of solid-state lithium metal batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Huizhe Niu, Minling Ding, Xin Li, Xiangyu Su, Xin Han, Nan Zhang, Ping Guan, Xiaoling Hu
Summary: Ionic liquid gel polymer electrolytes (GPE) have the advantages of high ionic conductivity, safety, and compatibility with electrodes. However, the addition of ionic liquid plasticizers to enhance conductivity compromises the mechanical strength. Polymerized ionic liquids (PIL) combine the properties of polymers and ionic liquids, offering superiorities beyond traditional ionic liquids. In this study, a PIL was synthesized and blended with PVDF, an ionic liquid, and a lithium salt to prepare PIL gel electrolyte (PIL-GPE@IL) for lithium batteries. The PIL-GPE@IL exhibited moderate mechanical strength, high ion conductivity, and excellent electrochemical stability. The lithium batteries assembled with PIL-GPE@IL demonstrated outstanding rate performance and cycle performance, indicating the potential of PIL-GPE@IL to enhance battery performance.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Ceramics
Yuansong Luo, Han Gao, Xiujian Zhao
Summary: The addition of LB as a sintering aid improves the sinterability and ionic conductivity of LATP. The LATP-2LB ceramic pellets sintered at 900 degrees C exhibit the highest total ionic conductivity and higher relative density and grain boundary ionic conductivity compared to LATP-0LB ceramic pellets.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Xiangchao Zhao, Yuansong Luo, Xiujian Zhao
Summary: This study improves the sintering characteristics and performance of the NASICON-type solid electrolyte LATP by introducing TeO2 as a sintering aid, and significant progress has been made.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Kehao Tao, Zhilong Wang, Yanqiang Han, Jinjin Li
Summary: Inorganic-organic solid composite electrolytes (SCEs) have attracted wide attention due to their desirable properties, but their high polymer crystallinity hampers their ionic conductivity. This study utilized an unsupervised learning model to discover new SCEs with high conductivity based on limited experimental data. The findings not only shortened the screening period of SCEs, but also provided insights for the rapid discovery and design of solid-state battery materials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Ceramics
Jingrui Kang, Rui Gu, Xu Guo, Jing Li, Hongchen Sun, Leiyang Zhang, Ruiyi Jing, Li Jin, Xiaoyong Wei
Summary: NASICON-type structured compounds Li1+xMxTi2-x(PO4)(3) have attracted attention for their stability and high lithium ion conductivity. This study successfully synthesized LATP solid electrolyte with SnO-P2O5-MgO glass addition to improve density and ionic conductivity. Different concentrations of SPM glass addition altered Al/Ti-O and P-O bond distances, affecting the relative density and bulk conductivity of LATP samples.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Gongyue Huang, Luca Porcarelli, Yan Liang, Maria Forsyth, Haijin Zhu
Summary: The study found that the composite with TFSI anion exhibited the best ion conductivity, while a synergistic effect was observed for the composite with both TFSI and OTf mixed anion, resulting in significantly enhanced ionic conductivity reaching 1.47 mS/cm. This work demonstrates the potential of using a combination of TFSI and OTf anions as an effective strategy for improving ionic conductivity in proton-exchange membranes.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Daniel Pfalzgraf, Daniel Mutter, Daniel F. Urban
Summary: This study investigates the ionic migration of Li in LATP solid electrolytes using density functional theory calculations, revealing that the Al content influences the energy profiles governing Li diffusion. A simplified classification scheme of three universal energy profile shapes is proposed based on the position of Al ions near the migration path. The overall influence of the Al/Ti ratio on Li migration is analyzed, providing a foundation for further research on the ionic conductivity of Li in LATP with varying Al/Ti concentrations.
SOLID STATE IONICS
(2021)
Article
Chemistry, Physical
Jizhang Chen, Weijun Zhou, Yuhui Quan, Bo Liu, Ming Yang, Minfeng Chen, Xiang Han, Xinwu Xu, Peixin Zhang, Siqi Shi
Summary: In this study, an ionic liquid, 1-butyl-3-methylimidazolium trifluoromethanesulfonate ([BMIM]OTF), was used as an additive in aqueous zinc-ion batteries to improve their performance at low temperatures. The additive preferentially adsorbs on the zinc electrode, forming a zincophilic and hydrophobic organic/inorganic hybrid solid electrolyte interphase layer. This layer reduces the nucleation overpotential of zinc plating, enhances interfacial charge transfer kinetics, and inhibits parasitic side reactions.
ENERGY STORAGE MATERIALS
(2022)
Article
Engineering, Environmental
Jifang Fu, Yufeng Xu, Linna Dong, Liya Chen, Qi Lu, Mengmeng Li, Xingfa Zeng, Sanwei Dai, Guorong Chen, Liyi Shi
Summary: The study synthesized a series of multiclaw-shaped octasilsesquioxanes functionalized ionic liquids for developing novel hybrid solid polymer electrolytes with high ionic conductivity. These electrolytes exhibit high electrochemical stability and ionic conductivity, showing promising cycling performance and rate capability in Li/LiFePO 4 cells.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Polymer Science
Nicolas Goujon, Tiago Mendes, Kristine J. Barlow, Robert Kerr, Luke A. O'Dell, John Chiefari, Patrick C. Howlett, Maria Forsyth
Summary: In this study, the use of single-ion conducting block copolymer (SIC) as an additional lithium salt additive to a ternary solid polymer electrolyte (SPE) was described. The impact of SIC concentration on the phase behavior and transport properties of the SPEs was investigated, and the electrochemical performance and cycling performance of the SPEs were also assessed. The results demonstrate that PIL block copolymer-IL-salt composites are a promising choice of electrolyte for the next generation of solid-state high energy density lithium metal batteries.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Kalpana Chintakrinda, Nagaraju Narayanam, Guang-Hui Chen, Fei Wang, Jian Zhang, Lei Zhang
Summary: We report the discovery of inorganic toroidal and capsule titanium oxysulfate clusters through ionothermal synthesis. The ratio between geometrically different anions (tetrahedral SO(4)(2-) vs. pseudo-tetrahedral PO(3)(3-)) shows an interesting influence on the formation of cluster structure.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Lei Zhai, Weiwei Zhang, Hongyu Gong, Yong Li, Meng Gao, Xiaoyu Zhang, Dongwei Li, Yanli Zhou, Caifu Dong, Wenbao Liu, Fuyi Jiang, Jianchao Sun
Summary: The quasi-solid electrolyte based on Poly(vinylidene fluoride-co-hexafluoropropylene) shows high ionic conductivity and lithium-ion transfer number through the synergistic effect with the NASICON-type lithium-ion conductor Li1.3Al0.3Ti1.7(PO4)3. This quasi-solid polymer electrolyte exhibits high conductivity and stable cycling performance at room temperature, and can be paired with different cathode materials for good electrochemical performance. In addition, the assembled pouch cell has good flexibility, making it suitable for various applications.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Chunxian Xing, Haoran Da, Peng Yang, Jiawei Huang, Min Gan, Jian Zhou, Yong Li, Haitao Zhang, Binghui Ge, Linfeng Fei
Summary: The direct recycling of degraded NCM (LiNi0.5Co0.2Mn0.3O2) cathode materials from spent lithium-ion batteries is more environmentally and economically attractive than present metallurgical treatments. A two-step method is designed to recycle the degraded NCM materials by utilizing aluminum impurity from the attached current collector to compensate for transition metal vacancies and restore the structure. This regeneration protocol simplifies the industrial recycling process and produces high-quality NCM materials with excellent electrochemical performance.
Review
Chemistry, Physical
Qinqin Ruan, Meng Yao, Du Yuan, Haotian Dong, Jiaxin Liu, Xuedi Yuan, Wenhao Fang, Guoying Zhao, Haitao Zhang
Summary: This article introduces the development of ionic liquid crystal (ILC) electrolytes and their applications in energy storage. By integrating the merits of ionic liquids and liquid crystals, ILC electrolytes enable the design and manipulation of ion transport channels, and exhibit high safety and electrochemical performances. The article summarizes the ion transport mechanism and working principles of ILC electrolytes, and outlines the challenges and design rules for their development in energy storage.
Article
Chemistry, Multidisciplinary
Du Yuan, Xin Li, Hong Yao, Yuhang Li, Xiaobo Zhu, Jin Zhao, Haitao Zhang, Yizhou Zhang, Ernest Tang Jun Jie, Yi Cai, Madhavi Srinivasan
Summary: A novel electrolyte for zinc ion batteries is developed, achieving regulated water activity and long-range ordering of conduction channels and solid electrolyte interface (SEI). By manipulating water activity, conductivities and electrochemical window can be tuned. The zinc symmetric cell with liquid crystal (LC) gel exhibits highly reversible zinc stripping/plating and ordering of water channels. The gel is also found to induce the in situ formation of long-range ordered layer SEI. The development of LC electrolyte provides a pathway toward advancing aqueous rechargeable batteries through regulation on ion transport, electrochemical stability, and interfacial reaction.
Article
Chemistry, Physical
Haoran Da, Shanshan Pan, Jin Li, Jiaqi Huang, Xuedi Yuan, Haotian Dong, Jiaxin Liu, Haitao Zhang
Summary: Recycling valuable elements such as Li, Co and Ni from spent cathode materials has gained attention, but the regeneration of spent graphite anode has been overlooked. This study proposes a sustainable method to repair the broken surface structure of graphite anode and recover its electrochemical performances. Coating the graphite with polymethyl methacrylate (PMMA) forms an artificial solid electrolyte interphase (SEI) layer, effectively modulating the formation of a homogeneous bilayer SEI configuration.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Qinqin Ruan, Meng Yao, Junfeng Lu, YanLei Wang, Jing Kong, Haitao Zhang, Suojiang Zhang
Summary: Bilayer composite solid-state electrolytes (CSSEs) are promising for high-voltage lithium metal batteries, but their compatibility and Li+ migration process often lead to impedance and deteriorated performance. To address this issue, a Janus electrolyte with mortise and tenon joints (JCSSE) is proposed. It consists of two layers with intimate contact and regulated Li+ coordination. The optimized JCSSE shows high ionic conductivity and wide electrochemical window, resulting in remarkable cycling performance and stability for high-voltage lithium metal batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiajia Li, Haiman Hu, Wenhao Fang, Junwei Ding, Du Yuan, Shuangjiang Luo, Haitao Zhang, Xiaoyan Ji
Summary: LiF-rich solid-electrolyte-interphase (SEI) can inhibit the growth of lithium dendrites and enhance the performance of lithium metal batteries. This study investigates the impact of Li-salt composition on SEI characteristics and reveals the formation of LiF. The results show that F-connecting bonds have a greater influence on SEI properties than molecular size and F element contents.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Meng Yao, Qinqin Ruan, Yangyang Wang, Liyu Du, Qiongguang Li, Lv Xu, Ruji Wang, Haitao Zhang
Summary: A novel dual-polymer@inorganic network composite polymer electrolyte (DNSE@IN) with high ionic conductivity and excellent mechanical properties is proposed. The DNSE@IN shows significant cycling stability in high-energy lithium metal batteries and has potential practical applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xuedi Yuan, Tao Dong, Jiaxin Liu, Yingyue Cui, Haotian Dong, Du Yuan, Haitao Zhang
Summary: By introducing a bi-affinity electrolyte formulation with ethyl vinyl sulfone and fluoroethylene carbonate as additives, a stable interphase layer is formed on the electrode, preventing the dissolution of transition metal ions and electrolyte decomposition.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Jiaqi Huang, Haitao Zhang, Xuedi Yuan, Yifan Sha, Jin Li, Tao Dong, Yuting Song, Suojiang Zhang
Summary: A strategy for constructing a robust interphase layer using an unsaturated imidazole-based ionic liquid additive ([Vmim1O2][TFSI]) is proposed to stabilize high-voltage Li-rich Li-metal batteries. The ionic liquid with a vinyl group preferentially adsorbs on both the cathode and anode surface, suppressing transition metal ion dissolution and mitigating structural degradation of the electrode. Experimental results show that the Li-metal anode with [Vmim1O2][TFSI]-based electrolyte exhibits stable Li plating/stripping over 750 h, and the full cells with Li1.170Ni0.265Co0.047Mn0.517O2 cathode demonstrate long-term cyclicity with a capacity retention of 87.89% after 350 cycles at 4.8 V.
CHEMICAL ENGINEERING JOURNAL
(2023)
Editorial Material
Chemistry, Multidisciplinary
Haitao Zhang, Du Yuan, Jin Zhao, Xiaoyan Ji, Yi-Zhou Zhang
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Thermodynamics
Xiaohui Yu, Hongna Qiao, Bin Yang, Haitao Zhang
Summary: The rapid growth of renewable energy poses challenges for energy storage technology. Rankine-based Carnot batteries are considered promising due to their high energy density at low temperatures. This study compares three Rankine-based Carnot Battery systems using a heat pump-organic Rankine cycle and finds that the reversible heat pump-organic Rankine cycle performs better in terms of energy and exergy efficiency, as well as levelized cost of storage. The sensitivity analysis demonstrates that the heat source temperature has a significant impact on the reversible heat pump-organic Rankine cycle using a dual-function machine.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Materials Science, Multidisciplinary
Zhouyang Zhang, Yiran Ying, Ziyu Wu, Jiawei Huang, Min Gan, Haitao Zhang, Haitao Huang, Yangbo Zhou, Linfeng Fei
Summary: Single-crystal-to-single-crystal (SCSC) phase transformation is essential for the controllable synthesis of advanced materials. However, understanding the atomic-scale mechanisms during SCSC transformation remains a challenge due to the lack of direct experimental probes. In this study, using in-situ transmission electron microscopy, the nucleation and growth mechanisms of a hexagonal phase in a monoclinic matrix during a heating-induced structural transformation were observed. The findings provide crucial insights into the microscopic mechanisms and kinetics of solid-state phase transitions.
Article
Chemistry, Multidisciplinary
Tianhua Chen, Jiaxin Liu, Dusan Losic, Jian Wang, Haitao Zhang
Summary: A new gel electrolyte is proposed in this study, which is prepared by in-situ polymerization and consists of fluoroethylene carbonate (FEC) solvent and ionic liquid 1-butyl-1-methylpiperidinium bis(trifluoromethylsulfonyl)imide (PP14TFSI). This combination synergistically enhances Li ion transport, improves electrochemical performance, and forms a protective interfacial layer, leading to enhanced cycling stability and coulombic efficiency of the lithium batteries.
Article
Energy & Fuels
Guan Wang, Jianyue Chen, Fengjie Zhang, Lina Zhao, Qingjun Chen, Guixin Wang, Haitao Zhang
Summary: A multiscale (Nb2O5/TiNb2O7)@C nanoarchitecture is designed to meet the requirements of low-temperature environments. It exhibits enhanced ion diffusion kinetics and demonstrates good performance at both room temperature and -40 degrees C.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Fengjie Zhang, Jie Yan, Shanshan Pan, Ruji Wang, Wenhao Fang, Haitao Zhang
Summary: The development of a stable and high-capacity anolyte is crucial for high-energy-density lithium slurry batteries (LSBs). In this study, 1D biphase bronze/anatase TiO2 nanotube structure was successfully produced as an anode material for LSBs. The TiO2 nanotubes not only shorten the diffusion and conduction pathways for lithium ions and electrons, but also improve the stability of the slurry. The slurry pouch cell constructed using TiO2 nanotubes exhibited good electrochemical performance.
MATERIALS TODAY ENERGY
(2023)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)
