Article
Electrochemistry
Fangfang Zou, Jie Wang, Xiaojia Zheng, Xuebu Hu, Jingcheng Wang, Meng Wang
Summary: In this study, the effect of Tris(trimethylsilyl)borate (TMSB) as an electrolyte additive on the performance of Li/LiNi0.8Co0.15Al0.05O2 cells was investigated. It was found that the oxidative decomposition products of TMSB contributed to the formation of the cathode electrolyte interface film, resulting in improved performance of the cells.
ELECTROCHIMICA ACTA
(2022)
Article
Nanoscience & Nanotechnology
Yongchao Liu, Liu Hong, Rui Jiang, Yueda Wang, Sawankumar Patel, Xuyong Feng, Hongfa Xiang
Summary: The use of N,O-bis(trimethylsilyl) trifluoro acetamide (BTA) as a multifunctional additive showed significant benefits in improving the electrochemical performance of lithium metal batteries, by modifying both anode and cathode surface layers. The BTA additive containing multiple functional groups promoted the formation of solid electrolyte interfacial films on a lithium metal anode and cathode surfaces, leading to enhanced electrode-electrolyte interfacial stability and reduced capacity decay caused by structural degradation of the cathode.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Pengju Li, Zhipeng Jiang, Xiaobo Huang, Xing Lu, Jia Xie, Shijie Cheng
Summary: The nitrofullerene additive demonstrates high compatibility with various electrolytes, promoting stable protective layer formation on sodium metal anodes and inhibiting dendrite growth. This leads to improved cycling stability, low voltage hysteresis, high rate capability, and prolonged cycle life in both carbonate and ether electrolytes.
Article
Chemistry, Multidisciplinary
Kanghyeon Kim, Taehun Kim, Gawon Song, Seonghyun Lee, Min Soo Jung, Seongmin Ha, A. Reum Ha, Kyu Tae Lee
Summary: Argyrodite-type Li6PS5Cl (LPSCl) has attracted attention as a solid electrolyte for all-solid-state batteries due to its high ionic conductivity and mechanical flexibility. However, the interface between LPSCl and cathode materials faces challenges such as electrochemical degradation. In this study, trimethylsilyl compounds were introduced as solid electrolyte additives to improve the interfacial stability between sulfide-based solid electrolytes and cathode materials, resulting in excellent electrochemical performance and enhanced cycle life.
Article
Chemistry, Multidisciplinary
Kuo Wang, Qianrui Li, Guoli Zhang, Shuo Li, Tong Qiu, Xiao-Xia Liu, Xiaoqi Sun
Summary: Researchers have introduced a low concentration of 3-aminobenzenesulfonic acid additive into zinc electrolyte, regulating the interface environment on the zinc electrode and extending the lifespan of symmetric zinc cells to over 1100 hours. The additive forms a stable solid-electrolyte interphase and allows for higher depth of discharge and cycle life.
Article
Nanoscience & Nanotechnology
Hanxiao Zhou, Huimin Shang, Tianhui Li, Wenjing Liu, Zhihao Guo, Yuxuan Guo, Jingjing Gao, Meizhen Qu, Huan Zhang, Gongchang Peng
Summary: In this study, BSTFA was proposed as an electrolyte additive to stabilize the surface of lithium anode and form a passivation layer, effectively solving the problem of lithium dendrites. Experimental results showed that BSTFA can significantly reduce polarization and achieve excellent cycling performance and Coulombic efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Dong Guo, Jiaao Wang, Tianxing Lai, Graeme Henkelman, Arumugam Manthiram
Summary: A localized saturated electrolyte (LSE) with 2-methyltetrahydrofuran (MeTHF) as an inner sheath solvent is proposed as a new electrolyte for Na-S batteries, which overcomes the challenges posed by the existing electrolytes and enables the development of dendrite-inhibited and shuttle-free Na-S batteries. The LSE features a low salt-to-solvent ratio and low diluent-to-solvent ratio, which expands the limit of localized high concentration electrolyte (LHCE). With this electrolyte, pouch cells with decent cycling performance under demanding conditions are demonstrated.
ADVANCED MATERIALS
(2023)
Article
Engineering, Environmental
Kuo Wang, Fangming Liu, Qianrui Li, Jiaqi Zhu, Tong Qiu, Xiao-Xia Liu, Xiaoqi Sun
Summary: This study regulates the interfaces at both Zn anode and vanadium oxide cathode in aqueous batteries with a high donor number electrolyte additive. By introducing N-methylpyrrolidone (NMP) molecule to the ZnSO4 electrolyte, the researchers are able to protect the Zn anode from corrosion and achieve high coulombic efficiency of plating-stripping. The formation of cathode-electrolyte interface effectively suppresses vanadium dissolution and enhances the capacity retention over cycling.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Grayson Deysher, Yu-Ting Chen, Baharak Sayahpour, Sharon Wan-Hsuan Lin, So-Yeon Ham, Phillip Ridley, Ashley Cronk, Erik A. Wu, Darren H. S. Tan, Jean-Marie Doux, Jin An Sam Oh, Jihyun Jang, Long Hoang Bao Nguyen, Ying Shirley Meng
Summary: All-solid-state batteries have gained attention for their potential improvements in safety, energy density, and cycle-life. Sodium all-solid-state batteries eliminate costly materials and are ideal for emerging grid energy storage applications. This study emphasizes the importance of solid electrolyte selection and presents three emerging solid electrolyte materials. The results demonstrate that stable cycling performance can be achieved by selecting appropriate materials for the anode and cathode interfaces.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Tianpeng Jiao, Gaopan Liu, Yue Zou, Xuerui Yang, Xiaozhen Zhang, Ang Fu, Jianming Zheng, Yong Yang
Summary: The research reveals that a stable CEI layer formed on the LiNi0.9Co0.05Mn0.05O2 cathode material through the addition of TMSFS multifunctional additive can significantly improve the cycling performance and electrochemical performance of lithium-ion batteries.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Yaprak Subas, Semih Afyon
Summary: The addition of high-purity lithium bis(oxalate) borate as an electrolyte additive improves the cycling performance and rate capability of lithium-ion batteries by forming a protective solid electrolyte interface, preventing electrolyte decomposition and structural changes.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Xinyu Ma, Jiangtao Yu, Qingyu Dong, Xiuyang Zou, Lei Zheng, Yin Hu, Yanbin Shen, Liwei Chen, Feng Yan
Summary: In this study, a multifunctional ionic liquid-type additive IL-AC was proposed to adsorb trace moisture, prevent hydrolysis, and remove HF in the electrolyte. The addition of IL-AC significantly improved the capacity and stability of the batteries, providing a convenient and effective electrolyte treatment method.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Pengju Li, Xiaobo Huang, Zhipeng Jiang, Han Zhang, Pengwei Yu, Xing Lu, Jia Xie
Summary: By adding trifluoromethylfullerene as an electrolyte additive, the Coulombic efficiency and cycling rate of sodium metal anodes can be improved, enhancing the performance of sodium batteries.
Article
Chemistry, Analytical
Behrooz Mosallanejad, Shaghayegh Sadeghi Malek, Mahshid Ershadi, Ahmad Ahmadi Daryakenari, Qi Cao, Farshad Boorboor Ajdari, Seeram Ramakrishna
Summary: Sodium-ion batteries have emerged as a promising alternative to lithium-ion batteries, but still face challenges with cycling performance and safety. The addition of small amounts of additives to the electrolyte can help address these issues.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
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)
Review
Chemistry, Multidisciplinary
Jun Jiang, Xiao-Li Zhou, Hua-Gang Lv, Han-Qing Yu, Yan Yu
Summary: This article reviews the challenges and optimization strategies for bimetallic-based oxygen evolution reaction (OER) materials, summarizing the state-of-the-art electrocatalysts and discussing the relationship between the compositional/structural features of bimetallic-based materials and their electrocatalytic properties. Future efforts to realize sustainable bimetallic-based OER applications are also discussed.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xianming Xia, Shitan Xu, Fang Tang, Yu Yao, Lifeng Wang, Lin Liu, Shengnan He, Yaxiong Yang, Wenping Sun, Chen Xu, Yuezhan Feng, Hongge Pan, Xianhong Rui, Yan Yu
Summary: The authors developed an artificial heterogeneous interphase (Na@Na2Se/V) on the surface of sodium metal, which exhibits excellent ionic conductivity and mechanical properties. This interphase layer promotes homogeneous sodium deposition without dendrite formation, resulting in outstanding cycling life and electrochemical performance in carbonate-based electrolyte.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Matthew J. Crafton, Tzu-Yang Huang, Yuan Yue, Raynald Giovine, Vincent C. Wu, Chaochao Dun, Jeffrey J. Urban, Raphaele J. Clement, Wei Tong, Bryan D. McCloskey
Summary: In this study, the extent of chemical reactions of a series of Mn2+/4+-based lithum-excess, cation-disordered rocksalt (DRX) oxyfluorides were quantified using a combination of differential electrochemical mass spectrometry (DEMS) and titration mass spectrometry. The results show that increasing the fluorine content can decrease redox reactions and suppress the generation of high-voltage O2 from the DRX surface.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Xiaoning Li, Liangbing Ge, Yumeng Du, Haoliang Huang, Yang Ha, Zhengping Fu, Yalin Lu, Wanli Yang, Xiaolin Wang, Zhenxiang Cheng
Summary: The oxygen evolution reaction (OER) is a critical step for sustainable fuel production. This study demonstrates the development of a surface termination similar to oxyhydroxide in an oxide, which enhances the intrinsic activity of the nanocatalyst and breaks the scaling relationship limit.
Article
Chemistry, Multidisciplinary
Xinyan Li, Xin Zhang, Xiaobin Niu, Jing Zhang, Rui Wu, Jun Song Chen, Yan Yu
Summary: Inspired by the multilayered structure of pine trees, researchers developed a 3D hierarchical multilayered tin-doped antimony nanoarray coated with a thin carbon layer. This material exhibited improved kinetic properties for sodium diffusion and lower volume expansion, leading to enhanced structural stability and excellent electrochemical performance for sodium storage.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ji Qian, Yang Ha, Krishna Prasad Koirala, Di Huang, Zhi Huang, Vincent S. S. Battaglia, Chongmin Wang, Wanli Yang, Wei Tong
Summary: This study reports the synthesis of a highly fluorinated Li-excess cation-disordered rock salts (DRX) cathode, Li1.2Mn0.6Ti0.2O1.8F0.2, based on cost-effective and earth-abundant transition metals via a solid-state reaction. The fluorinated DRX cathode using an ammonium fluoride precursor exhibits uniform particle size, delivering a specific discharge capacity of 233 mAh g(-1) and specific energy of 754 Wh kg(-1), with 206 mAh g(-1) retained after 200 cycles. The study demonstrates the potential to develop next-generation cost-effective DRX cathodes with enhanced capacity retention for high-energy Li-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Physical
Peiyuan Wang, Shumin Sun, Xianhong Rui, Yonghui Zhang, Shiwen Wang, Yuanhua Xiao, Shaoming Fang, Yan Yu
Summary: Due to the limitations of dissolution, shuttle effect and sluggish conversion kinetics, researchers have developed various polar catalysts to address these issues in room-temperature sodium-sulfur batteries. Polar catalysts can not only accelerate and alter the redox process, but also inhibit the shuttle effect by adsorbing polar sodium polysulfides through polar-polar interaction. This review highlights the recent advances in the electrocatalytic effect of polar catalysts on sulfur speciation pathways in room-temperature sodium-sulfur batteries and discusses the challenges and future research directions for achieving rapid and reversible sulfur conversion.
Article
Chemistry, Multidisciplinary
Junyi Dai, Sha Tan, Lifeng Wang, Fangxin Ling, Fuqiang Duan, Mingze Ma, Yu Shao, Xianhong Rui, Yu Yao, Enyuan Hu, Xiaojun Wu, Chunyang Li, Yan Yu
Summary: In this study, a high-entropy and potassium incorporation strategy was used to construct the HE-K-PBA cathode, which achieved high working voltage and cycling stability. The reaction mechanism of metal cations in HE-K-PBA and the entropy stabilization mechanism were revealed through experimental and simulation studies. HE-K-PBA showed high output voltage, good reversible capacity, and excellent cycling performance, and demonstrated potential application prospects in full cell and all-solid-state batteries.
Article
Chemistry, Multidisciplinary
Hai Yang, Fuxiang He, Fanfan Liu, Zhefei Sun, Yu Shao, Lixin He, Qiaobao Zhang, Yan Yu
Summary: By using I2 as a catalyst, the polymerization process of white phosphorus can be accelerated and the alloying reaction of red phosphorus can be enhanced, leading to improved cycling stability and rate performance of potassium-ion batteries.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Yaxiong Yang, Shoumeng Yang, Xu Xue, Xianghua Zhang, Qifei Li, Yu Yao, Xianhong Rui, Hongge Pan, Yan Yu
Summary: This review summarizes various inorganic solid-state electrolytes (such as oxide-based, NASICON-type, sulfide-based, etc.) for all-solid-state sodium batteries. Their crystal structures and modification strategies to enhance ionic conductivity are discussed. Additionally, methods for modifying the interfaces between solid electrolytes and cathodes/anodes, and optimizing full battery performance are explored. Lastly, the future development directions of all-solid-state sodium batteries are proposed.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shufen Ye, Nan Yao, Xiang Chen, Mingze Ma, Lifeng Wang, Zhihao Chen, Yu Yao, Qiang Zhang, Yan Yu
Summary: In this study, a bifunctional concentrated electrolyte with high ionic conductivity and low viscosity is developed to regulate the dissolution behavior of polysulfides and induce uniform potassium deposition. The K-S batteries based on solid-liquid-solid conversion mechanism display superior electrochemical performance, with high reversible capacity and long lifespan.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Yanqi Yu, Zihan Zhang, Yan Yu
Summary: This study used particle sensors to investigate the maturation process of phagosomes, and found that the transition from actin to microtubule transport mode can regulate the duration and maturation speed of early phagosomes. This is crucial for effective degradation of pathogens.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Nanoscience & Nanotechnology
Jared T. Wiemann, Danh Nguyen, Swagata Bhattacharyya, Ying Li, Yan Yu
Summary: The rapid rise of antibiotic resistance has become a critical global health concern, necessitating the development of alternative treatments, such as antibacterial nanoparticles (NPs). This study explores the use of the surface anisotropy of NPs to modulate their antibacterial efficacy. By investigating the antibacterial properties of amphiphilic Janus NPs, researchers found that polycationic ligands play a crucial role in enhancing the interaction between Janus NPs and bacteria, resulting in improved antibacterial potency. These findings highlight the potential of Janus NPs as a unique class of antibacterial materials.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Xianming Xia, Kaizhi Chen, Shitan Xu, Yu Yao, Lin Liu, Chen Xu, Xianhong Rui, Yan Yu
Summary: An artificial solid electrolyte interphase (SEI) interlayer composed of Na-Sn alloy, Sn, and Na2Te is designed to suppress sodium dendrite growth and improve the cycling stability and Coulombic efficiency of sodium-metal batteries (SMBs).
Review
Chemistry, Multidisciplinary
Shitan Xu, Yi Yang, Fang Tang, Yu Yao, Xiang Lv, Lin Liu, Chen Xu, Yuezhan Feng, Xianhong Rui, Yan Yu
Summary: Next-generation secondary batteries, such as SIBs and PIBs, have great potential for large-scale energy storage systems due to their abundant and cost-effective sodium/potassium raw materials. However, the performance of SIBs (PIBs) relies heavily on the characteristics of the cathode material, and the poor electron conductivity of sodium/potassium vanadium fluorophosphate (MVPF) limits its application in large-scale energy storage. Various modification strategies, including conductive coating, morphological regulation, and heteroatomic doping, have been proposed to enhance the electronic conductivity and ion transportation of MVPF cathodes. Additionally, the development and application of MVPF cathodes in SIBs under low temperature conditions are discussed.
MATERIALS HORIZONS
(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)
