Article
Chemistry, Physical
Sunwook Kim, Kyoungmin Min, Kwangjin Park
Summary: Y-doping improved the rate capability and cycle retention of P2-type Na0.67Ni0.33Mn0.67O2 cathode material, resulting in a more stable structure.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Jiangtao Wu, Huijun Liu, Huanpeng Bu, Xue Zhang, Hailiang Zhang, Wenjun Wang, Lingxu Yang, Chaoliu Zeng, Shenglong Zhu
Summary: A series of manganese-based NASICON structured Na1+2xMnxTi2-x(PO4)3 materials were obtained by sol-gel method and demonstrated impressive electrochemical performances as cathodes for aqueous sodium ion batteries (ASIB). Among them, NM1.2T0.8P exhibited the best electrochemical performance with proper operating potential and high discharge specific capacity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Christian Leibing, Desiree Leistenschneider, Christof Neumann, Martin Oschatz, Andrey Turchanin, Andrea Balducci
Summary: A study on glyoxylic-acetals in sodium-ion energy storage systems is presented. Compared to conventional electrolytes, these electrolytes exhibit increased thermal stabilities and higher flash points. The glyoxylic-acetal electrolyte provides competitive capacity and prolonged cycle life, and the electrode-electrolyte interphases formed in presence of glyoxylic-acetals are thicker and potentially more protective.
Article
Electrochemistry
Martin Karlsmo, Patrik Johansson
Summary: The development of all-organic aqueous energy storage devices is a promising approach to meet the needs of medium/low-demanding electrical applications. These devices should be low cost, environmentally friendly, and safe, complementing expensive lithium-ion batteries. In this study, all-organic aqueous Na-ion hybrid supercapacitors were assembled using commercial materials, providing a sustainable and low-cost energy storage solution. The created devices demonstrate adequate technical performance and biodegradability.
BATTERIES & SUPERCAPS
(2022)
Article
Chemistry, Multidisciplinary
Yongquan Zhang, Tao Ding, Jingshun Wang, Anquan Yao, Changhai Zhang, Tiandong Zhang, Yue Zhang, Yu Feng, Qingguo Chi
Summary: This research focuses on the development of titanium-doped nano sodium manganese oxides as cathode materials for aqueous rechargeable magnesium ion batteries. The NMTO-5 material exhibits high reversible capacity and excellent electrochemical performance at various current densities. This study demonstrates the promising potential of NMTO-5 as an electrode material.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Review
Energy & Fuels
Nagmani, Debanjana Pahari, Prakhar Verma, Sreeraj Puravankara
Summary: The growth of renewable energy generation has been unprecedented, but the intermittency in power supply and demand necessitates energy storage. Sodium-ion batteries (SIBs) are considered the best alternative to lithium-ion batteries (LIBs) due to their similarities in chemistry, electrochemistry, and manufacturing.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Chol-Jun Yu, Yong-Chol Pak, Chung-Hyok Kim, Jin-Song Kim, Kum-Chol Ri, Kwang-Hyok Ri, Song-Hyok Choe, Stefaan Cottenier
Summary: The study proposes mixed sodium manganese oxides as potential cathode materials for sodium-ion batteries with advantages in electrode voltage, capacity, and sodium-ion diffusion rate, based on first-principles calculations. Through identifying intermediate phases during Na insertion/extraction, the study shows an increase in electrode voltage and specific capacities by mixing due to extending the lower limit of Na content. Furthermore, investigation of sodium-ion diffusion reveals fast migration within the S-shaped tunnel and moderate migration within the small-sized tunnel in these compounds.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Qiang Pang, Xiangyu Yu, Shijing Zhang, Wei He, Siyu Yang, Yao Fu, Ying Tian, Mingming Xing, Xixian Luo
Summary: The study fabricated an aqueous Zn2+/Li+ hybrid-ion battery using LiV3O8 nanorods as cathode, metallic Zn as anode, and 3M Zn(OTf)(2) + 0.5M LiOTf aqueous solution as electrolyte. The hybrid-ion battery showed significantly improved cycle performance compared to batteries using pure 3M Zn(OTf)(2) electrolyte, with an impressive capacity retention of 87.0% after 4000 cycles at 5A g(1), due to the inhibitory effect of the hybrid electrolyte on the formation of irreversible by-products and Zn dendrite growth.
Review
Chemistry, Physical
Nkongolo Tshamala Aristote, Xinglan Deng, Kangyu Zou, Xu Gao, Roya Momen, Fengrong Li, Wentao Deng, Hongshuai Hou, Guoqiang Zou, Xiaobo Ji
Summary: Metal ion capacitors (MICs) and supercapacitors are considered as promising alternatives for large-scale energy storage. This review focuses on recent progress in MICs, including sodium-ion capacitors (SICs), potassium-ion capacitors (PICs), and zinc-ion capacitors (ZICs). It covers the basic concepts, electrode materials, electrolyte systems, and factors impacting the electrochemical performances of MICs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Zhenghua Zhang, Jiugang Hu, Yang Hu, Hongmei Wang, Huiping Hu
Summary: This work investigates the effect of an advanced electrolyte additive on the performance of Ni-rich LiNixCoyMn1-x-yO2/graphite batteries. The results show that the additive induces the formation of robust electrolyte/electrode interphase, significantly improving the cycling performance and reducing the cell impedance. The capacity retention rate of the cells with the additive-based electrolyte can reach 90% after 600 cycles, which is considerably better than that of baseline batteries (70%). Mechanistic studies reveal that the additive suppresses the formation of fragile Li2CO3 and promotes the formation of more stable LiF, LixPOyFz, and additional organic phosphorus species on the electrode surface, thereby preventing cation disorder and irreversible phase transitions.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Quan Pei, Mingliang Lu, Xiaolin Liu, Dong Li, Xianfa Rao, Zhiliang Liu, Shengwen Zhong
Summary: Sodium-ion batteries (SIBs) are considered as a promising alternative to lithium ion batteries. This study focuses on synthesizing hollow micro-spherical sodium-ion cathode materials through a solid-state method, with Al-doped samples showing smaller particle size and superior high-rate capabilities. The hollow microsphere structure exhibits a higher capacity, with a first discharge capacity of 128 mAh g(-1) at 0.1C.
Review
Materials Science, Multidisciplinary
Wen-Ding Pan, Cheng Liu, Ming-Yue Wang, Zheng-Jie Zhang, Xiao-Yu Yan, Shi-Chun Yang, Xin-Hua Liu, Yi-Fei Wang, Dennis Y. C. Leung
Summary: This paper summarizes the research progress of cathode materials and ion intercalation mechanisms in aluminum-ion batteries (AIBs), providing comprehensive guidance for the design of high-performance AIBs. Various intercalation mechanisms, including AlCl4-, Al3+, and AlCl2+/AlCl2+ coordination, are discussed in detail to understand their impact on cell performance.
Article
Nanoscience & Nanotechnology
Da-Ae Lim, Young-Kyeong Shin, Jin-Hong Seok, Dayoung Hong, Kyoung Ho Ahn, Chul Haeng Lee, Dong-Won Kim
Summary: In this study, a TMAEPPi additive was synthesized to enhance the cycling characteristics and thermal stability of high-capacity NCM cathode materials. TMAEPPi formed a stable CEI layer, suppressing electrolyte decomposition and reducing material microcracking, which improved the performance of lithium-ion batteries.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Tomooki Hosaka, Ayumi Noda, Kei Kubota, Kento Chiguchi, Yuki Matsuda, Kazuhiko Ida, Satoshi Yasuno, Shinichi Komaba
Summary: Superconcentrated aqueous electrolytes have been developed for 2 V-class aqueous batteries. By controlling the composition of the electrolyte, a wider potential window and good charge/discharge performance has been achieved. Two different battery configurations showed excellent performance using the electrolyte. The study proposes new sodium/potassium-ion batteries using the superconcentrated NaFSA-KFSA aqueous electrolytes.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Yawei Chen, Shiyang Wang, Yulin Jie, Zhanwu Lei, Ruiguo Cao, Shuhong Jiao
Summary: NaNCM ternary materials were synthesized by solid-phase reaction with well-regulated temperature, characterized by XRD and cross-section SEM, showing different initial specific capacities and capacity retention rates. High-nickel and low-cobalt materials need to improve rate capability, and ex-situ XRD reveals structure evolution during cycling.
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2021)
Article
Materials Science, Multidisciplinary
Shengnan Zhang, Chunlin Zhao, Kai Zhu, Jiaqi Zhao, Yinyi Gao, Ke Ye, Jun Yan, Guiling Wang, Dianxue Cao
Summary: Aqueous Mg ion batteries (AMIBs) have great potential for energy storage due to their high capacity, abundant resource, and environmental friendliness. However, the scarcity of suitable anode materials limits the development of AMIBs. In this study, a new polymer anode material with a flower-like nanosheet structure is synthesized for aqueous Mg-Na hybrid-ion battery. The polymer electrode material exhibits high discharge specific capacity and maintains its framework structure during the cycling process of the hybrid-ion battery.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Review
Environmental Sciences
Yue Yuan, Chunyu Tang, Yongxu Jin, Kui Cheng, Fan Yang
Summary: This article discusses the factors and mechanisms of humic substances influencing phosphorus cycling in soil-plant systems, focusing on their contribution to soil phosphorus mobilization and plant phosphorus acquisition. Humic substances have been found to enhance phosphorus availability and play an important role in sustainable agriculture.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Ruibai Cang, Mingyi Zhang, Xuejiao Zhou, Kai Zhu, Xitian Zhang, Dianxue Cao
Summary: A new anode material, 3D-conjugate of 3,4,9,10-perylenetracarboxylic diimide-1,3,5-triazine-2,4,6-triamine (3D-P(PDI-T)), was designed and synthesized for aqueous Mg-ion batteries (MIBs). The increased aromatic structure improved its structural stability by reducing its solubility in aqueous electrolytes. The 3D-P(PDI-T) anode exhibited high rate capacity, reversible capacity, and long cycle life, making it a promising candidate for MIBs.
Article
Chemistry, Multidisciplinary
Xiongxin Peng, Shuang Gai, Kui Cheng, Fan Yang
Summary: The study conducted hydrothermal humification kinetics experiments using corn straw as raw material and employed characterization techniques such as ultra-performance liquid chromatography, nuclear magnetic resonance spectroscopy, and Fourier-transform ion cyclotron resonance mass spectrometry to determine the formation mechanism of artificial humic substances (A-HS). The results showed that in an alkaline environment, rapid dissociation of lignocellulose can occur, with cellulose and hemicellulose being hydrolyzed into glucose and xylose, further dehydrated to form 5-hydroxy furfural and furfural, and then rehydrated to synthesize levulinic acid and other small molecular acids. These small precursors then combine with lignin fragments to form fulvic acids, humic acids, and even humin. The proposed mechanism of hydrothermal humification is of great significance for the design, synthesis, and application of A-HS in sustainable agriculture.
Article
Chemistry, Physical
Yanqin Xue, Xuan Zhang, Jiaxin Yao, Jing Zhao, Yanyan Xu, Qing Yan, Ke Ye, Kai Zhu, Dianxue Cao, Guiling Wang
Summary: A core-shell structured Ni1Fe2@Fe2O3 composite embedded in a carbon microtube matrix was successfully prepared and used as a catalyst for the oxygen evolution reaction. The carbon matrix effectively prevented the agglomeration of metal particles and facilitated efficient electron transfer. The Ni1Fe2@Fe2O3@C catalyst exhibited good catalytic activity and stability, showing potential for application in water splitting devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Shengnan Zhang, Kai Zhu, Yinyi Gao, Dianxue Cao
Summary: A synthetic polymer material (PNNI) with a multilayer nanosheet structure is synthesized as an anode for AAIBs. It shows a Coulombic efficiency of 93.8% at 100 mA g-1 in a 1 M NH4Ac electrolyte and exhibits good cycling performance with a capacity retention of 80.2% over 10000 cycles at 5 A g-1. When used as the anode in a full ammonium-ion battery, it maintains a capacity retention of around 100% after 10000 cycles at 1 A g-1. This synthetic polymer electrode material maintains its special framework structure during the discharge/charge cycles of ammonium ion batteries.
ACS ENERGY LETTERS
(2023)
Article
Energy & Fuels
Dingfu Zhang, Jiaxin Yao, Guiling Wang, Jinling Yin, Kai Zhu, Jun Yan, Dianxue Cao, Min Zhu
Summary: Hydrogen (H-2) plays a key role in promoting a sustainable low-carbon economy and addressing energy security. This study successfully prepared p-Ni x Co9-x S8 catalyst with polyvinylpyrrolidone (PVP) compounds, which exhibited a hierarchical flowerlike nanosheet structure. The p-Ni x Co9-x S8 nanosheets showed outstanding HER performance due to their ultrathin and porous surface, enabling rapid electrolyte injection and providing abundant active sites for H(+) adsorption.
Article
Chemistry, Physical
Guangsheng Dong, Yongzheng Fang, Lixin Li, Zhuo Li, Shuqing Liao, Kai Zhu, Jun Yan, Ke Ye, Guiling Wang, Dianxue Cao
Summary: In this study, a 3D hierarchical Ti3C2TX/MnS composite was successfully synthesized by combining 2D MXene material with MnS. The composite exhibited high specific capacity and good conductivity, making it suitable for negative electrodes in Li, Na, and K ion batteries. After 1000 and 3000 cycles, the 3D Ti3C2TX/MnS composite showed superior capacities of 826 and 634 mAh/g at 0.5 and 1.0 A/g, respectively. Remarkable electrochemical capabilities were also achieved in Na and K ion batteries.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Borong Lu, Chunmei Lv, Ying Xie, Lianxin Gao, Jun Yan, Kai Zhu, Guiling Wang, Dianxue Cao, Ke Ye
Summary: A CoSeP/CoP interface catalyst is synthesized on nickel foam using hydrothermal, solvothermal, and in situ template methods. This catalyst promotes the hydrogen production performance of electrolytic urea and exhibits durable cycle stability. Density functional theory (DFT) confirms that the catalyst can enhance catalytic activity by adsorbing and stabilizing reaction intermediates on its surface.
Article
Chemistry, Multidisciplinary
Ruibai Cang, Ke Ye, Kai Zhu, Dianxue Cao
Summary: In this study, a synthesized polymer, PPTCDI, was used as an anode and activated carbon as a cathode, showing excellent rate capability and high energy density. A flexible zinc-ion battery was successfully assembled using this combination, demonstrating the feasibility of zinc-ion energy storage and providing new ideas for aqueous battery systems.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Dongqing Zhang, Ke Ye, Xiaojin Li
Summary: This study investigated the influence of catalyst/ionomer interface structure on the electrode durability by adjusting the solvent viscosity of the catalyst inks. The results showed that electrodes with the highest durability were obtained by using a specific IPA:DPG ratio, which created a fine catalyst/ionomer interface structure to minimize ECSA loss rate. The dispersion states of the ionomer were affected by the solvent ratio, and tailored interface structures contributed to improved electrode durability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Zhengguang Zou, Zhiqi Yu, Chi Chen, Qian Wang, Kai Zhu, Ke Ye, Guiling Wang, Dianxue Cao, Jun Yan
Summary: Sb-substituted Bi2Se3 nanoparticles decorated on Ti3C2T x MXene with carbon encapsulation show excellent electrochemical performance for alkali metal ion storage. The cationic displacement of Sb3+ effectively inhibits the shuttling effect of soluble polyselenides and the confinement engineering alleviates volume change during cycling. This work provides valuable guidance for suppressing the shuttling of polyselenides/polysulfides in high-performance alkali metal ion batteries.
Article
Chemistry, Multidisciplinary
Shengnan Zhang, Kai Zhu, Yinyi Gao, Tianzeng Bao, Hongbin Wu, Dianxue Cao
Summary: Polyimide, as a promising electrode material for lithium-ion batteries, has easy synthesis, customizable structure, and structural stability. The benzene ring structure of polyimide exhibits strong lithium storage capacity as a negative electrode material. We designed and synthesized a polyimide organic polymer (PBPAQ) with a unique spherical flower structure, which enhances the interaction between the electrode material and the electrolyte. The PBPAQ anode shows a specific discharge capacity of 738 mAh g(-1) after 100 cycles at 0.1 A g(-1), laying a foundation for future research on LIB anodes.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Dongqing Zhang, Ke Ye, Xiaojin Li
Summary: This study investigates the catalyst/ionomer interface for high-durability electrodes by adjusting the catalyst inks. The results show that using IPA:DPG = 2:6 as the dispersion solvent can achieve the highest durability for the electrodes, reducing carbon corrosion loss and Pt particle dissolution loss. Molecular dynamics simulation and experimental data further confirm the influence of solvent ratio on the dispersion state of the ionomer and the catalyst/ionomer interface structure.
ACS APPLIED MATERIALS & INTERFACES
(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)
