Article
Engineering, Chemical
Yuhao Ma, Yangyang Wang, Guilin Yan, Fei Yuan, Wentao Zhang
Summary: The Ca-doped Li4Ti5O12 samples with flower-like morphology synthesized by hydrothermal method showed improved electrochemical performances as anode material for lithium-ion batteries. The incorporation of Ca2+ enhanced the specific discharge capacity, discharge rate, and cycling performance.
Article
Chemistry, Physical
Xiaohang Ma, Changyong Yu, Xian Cao, Jing Hu, Nan Cheng, Hao Chen, Pengzhi Chen, Yanqing Guo, Jialong Chen, Zhenfa Zi, Jianming Dai
Summary: Nb26Mo4O77 samples are synthesized by hydrothermal and solid-state method, exhibiting different structural stability, initial coulombic efficiency, cyclability, and rate capability. Among them, the rod-like nanoparticles synthesized by hydrothermal method show better performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Pengwei Li, Shao-hua Luo, Qing Wang, Yahui Zhang, Xin Liu, Caihong Xu, Jinsheng Liang, Xinhui Duan
Summary: A novel process of preparing ZnMn2O4 as anode material for lithium-ion batteries from spent zinc-manganese batteries was developed in this study. Nano ZnMn2O4 was synthesized by a low-temperature hydrothermal method and exhibited high initial discharge specific capacity.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Inorganic & Nuclear
Nibagani Naresh, S. Jayasubramaniyan, Paramananda Jena, G. Kanimozhi, P. Muralidharan, N. Satyanarayana
Summary: The hybrid ultrathin NiMoO4 nanosheets/SnO2 nanospheres/rGO sheets nanocomposite prepared using a fast microwave-assisted hydrothermal method showed promising performance as an anode material for lithium-ion batteries, exhibiting high initial discharge capacity and excellent rate capability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Engineering, Environmental
Jianbo Wang, Juan Lv, Mingxing Zhang, Miqi Tang, Qi Lu, Yufei Qin, Yan Lu, Bo Yu
Summary: LiCoO2 is widely used in Li-ion batteries for portable electronics, but current recycling methods involve complex procedures and the use of harmful chemicals. This study introduces a single-step recycling approach based on suspension electrolysis, which uses a simple electrolyte and shows potential for environmentally friendly LiCoO2 recovery.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Bao-Shui Wu, Peng Wang, Shu-Hua Teng
Summary: Mesoporous carbon-coated iron oxide nanoparticles were successfully synthesized by using alpha-Fe2O3 nanospheres as the cores and resorcinol as the carbon source of the shells. The coated nanoparticles exhibited significantly improved electrochemical properties when used as anodes for lithium-ion batteries. The coating thickness can be easily adjusted, leading to different cycling stability and rate performance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Guanhua Zhang, Hao Wang, Zihan Yang, Haoyang Xie, Zhenggang Jia, Yueping Xiong
Summary: LiNi0.8Co0.1Mn0.1O2 (LNCMO) cathode materials for lithium-ion batteries were prepared by hydrothermal synthesis and high-temperature calcination, and the effect of precursor hydrothermal synthesis temperature on their microstructures and electrochemical cycling performances were investigated. The results showed that the LNCMO cathode material prepared using the precursor synthesized at 220°C exhibited the best charge/discharge cycle stability, with a specific capacity retention rate of 81.94% after 50 cycles. This enhanced cyclic stability was attributed to the small grain size, high crystallinity, and structural stability inherited from the precursor obtained at 220°C.
Article
Nanoscience & Nanotechnology
Shaoyan Zhang, Lijie Ci, Wei Mu
Summary: In this study, a quaternary transition-metal vanadium oxide nanowires were successfully prepared and investigated as cathode material for lithium-ion batteries. The nanowires showed high performance, making them a promising choice for cathode materials of LIBs for ICD.
SCRIPTA MATERIALIA
(2022)
Article
Nanoscience & Nanotechnology
C. Dong, A. Li, H. Kobayashi, Y. Chang, R. Li, X-B Chen, W. Dong
Summary: The flexible film with nanohelical hierarchical structure as a binder-free electrode proposed in this study can release the mechanical stress caused by volumetric variations, exhibiting high rate capability and superior cycling stability. The hierarchical core-sheath nanohelical structure allows the electrode to maintain high capacity and stability during cycling, indicating great potential in energy storage applications.
MATERIALS TODAY NANO
(2021)
Article
Chemistry, Physical
Xu Chu, Lingmeng Li, Wei Chen, Haisheng Fang
Summary: Hydrothermal synthesis of multicomponent olivine LiMn0.8Fe0.19Mg0.01PO4 in a Li-excess reaction system shows improved electrochemical performance when synthesized in a N-2 atmosphere, suppressing undesirable oxidation. Additionally, increasing the sintering temperature and using sucrose as the carbon source can further enhance the performance of the LiMn0.8Fe0.19Mg0.01PO4/C composite.
Article
Energy & Fuels
Deniz Okan Bayraktar, Ersu Lokcu, Cagla Ozgur, Tuncay Erdil, Cigdem Toparli
Summary: This study investigates the influence of the synthesis environment on the structural and electrochemical properties of high-entropy oxides (HEOs). The results show that the synthesis atmosphere greatly affects the formation of oxygen vacancies, and the sample synthesized under an argon atmosphere exhibits enhanced cycling and rate performances. This work opens up new opportunities for designing HEO-based anodes and utilizing other HEO-based functional materials.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
Kazuhiko Mukai, Takeshi Uyama, Takamasa Nonaka
Summary: An in-depth understanding of the thermal behavior of lithium-ion battery materials is essential to mitigate the risk of catastrophic thermal runaway and meet the increasing demand for sustainable batteries. The study focused on analyzing lithiated LTO using differential scanning calorimetry and high-temperature X-ray diffraction measurements, identifying three thermal reaction processes and suggesting fluorine-free Li salts and stabilizing LTO lattice as effective strategies to prevent thermal runaway. Results showed that direct regeneration methods could restore the discharge capacity of LTO to around 90%, indicating superior recycling performance compared to lithium transition metal oxides for positive electrodes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Kexing Cai, Shao-hua Luo, Jun Cong, Kun Li, Sheng-xue Yan, Peng-qing Hou, Qing Wang, Yahui Zhang, Xin Liu, Xuefei Lei, Wenning Mu, Jianbo Gao
Summary: Spinel structure ZnMn2O4 anode materials were successfully synthesized via inexpensive microwave-assisted hydrothermal method. The effects of synthesis conditions on the product performance were systematically studied. ZnMn2O4 prepared under optimized conditions showed stable and superior cyclic performance, indicating its potential as an anode material for lithium-ion batteries.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
E. Thauer, G. S. Zakharova, E. Andreikov, V Adam, S. A. Wegener, J-H Noelke, L. Singer, A. Ottmann, A. Asyuda, M. Zharnikov, D. M. Kiselkov, Q. Zhu, I. S. Puzyrev, N. Podval'naya, R. Klingeler
Summary: In this study, ZnO/C composites were synthesized for lithium-ion batteries, and the effects of heat treatment conditions on their performance were investigated. The ZnO/C composite prepared at 700 degrees Celsius showed higher discharge and charge capacities, attributed to improved conductivity and Li-ion diffusion. Ex-situ XRD studies confirmed a two-step storage mechanism in the composite.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Jay Singh, Seulgi Lee, Priya Yadav, Sungjin Kim, Jaekook Kim, Alok Kumar Rai
Summary: In this study, a hydrothermal synthesis method was used to produce a mulberry-like mesoporous CoMoO4 anode material with improved electrochemical properties for lithium ion and sodium ion batteries. The unique morphology of the CoMoO4 material led to high reversible discharge capacity and long cycle stability, making it a promising alternative high-performance anode material for sodium ion battery applications.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Xianglong Chen, Yudong Gong, Xiu Li, Feng Zhan, Xinhua Liu, Jianmin Ma
Summary: The olivine-type lithium iron phosphate (LiFePO4) is a promising and widely used cathode material for high-performance lithium-ion batteries. However, its performance is limited in cold climates. Therefore, designing low-temperature electrolytes is crucial for the further commercial application of LiFePO4 batteries.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Yuxin Zhang, Jie Jiang, Jiongming Ma, Zhen Wei, Yue Wang, Bowen Song, Jia Meng, Guifang Jia, Joao Pedro de Magalhaes, Daniel J. Rigden, Daiyun Hang, Kunqi Chen
Summary: Mapping RNA modifications with advanced technologies has revolutionized our understanding of them. Current modification profiling methods are limited and require selective treatments. Direct RNA sequencing enables the direct study of modifications and has the potential to overcome the limitations of previous methods. The DirectRMDB database provides a fresh perspective on RNA modifications and allows exploration of the epitranscriptome in an isoform-specific manner.
NUCLEIC ACIDS RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Gaoxue Jiang, Jiandong Liu, Zhongsheng Wang, Jianmin Ma
Summary: A high-performance non-flammable electrolyte is designed by using 1.5 m LiTFSI in propylene carbonate (PC)/triethyl phosphate (TEP) (4:1 by vol.) with 4-nitrophenyl trifluoroacetate (TFANP) as the additive. This electrolyte can facilitate the formation of LiF-rich solid electrolyte interphase (SEI) on the Li anode surface and cathode electrolyte interphase (CEI) on the cathode surface, suppressing the growth of Li dendrites and reducing the continuous electrolyte consumption. The Li||LiNi0.6Co0.2Mn0.2O2 battery with this electrolyte shows excellent cycling stability and rate performance.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhongsheng Wang, Chunlei Zhu, Jiandong Liu, Xinhong Hu, Yulu Yang, Shihan Qi, Huaping Wang, Daxiong Wu, Junda Huang, Pengbin He, Jianmin Ma
Summary: Tailoring the inorganic components of the CEI and SEI in lithium metal batteries is crucial for improving their cycling performance. By using PFBNBS as an electrolyte additive guided by functional groups, the species and inorganic content of the CEI/SEI are enriched with a gradient distribution. Furthermore, the catalytic effect of the NCM622 cathode on the decomposition of PFBNBS is proposed. This tailored electrolyte enables the formation of an inorganic-rich CEI on NCM622 and an increased inorganic content in the SEI, leading to superior electrochemical performance and inhibiting electrolyte decomposition.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chunlei Zhu, Daxiong Wu, Zhongsheng Wang, Huaping Wang, Jiandong Liu, Kanglong Guo, Quanhui Liu, Jianmin Ma
Summary: NaF-rich electrode-electrolyte interphases play a crucial role in the cycling stability of sodium metal batteries. The addition of perfluorobenzene (PFB) promotes the formation of NaF-rich solid electrolyte interphases (SEI). PFB can extract a part of EC with the lowest solvation energy, allowing more PF6- to participate in the solvation layer and form an anion-aggregated solvation sheath, thus facilitating the decomposition of PF6- to produce NaF. The Na||Na symmetric cells with this electrolyte exhibit superior cycling performance and the Na||Na3V2(PO4)(2)O2F batteries achieve high capacity retention after 500 cycles.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Junda Huang, Jian He, Quanhui Liu, Jianmin Ma
Summary: Realizing uniform Li+ flow is crucial for achieving even Li deposition in lithium metal batteries (LMBs). In this study, a dynamic ion sieve concept is proposed, which involves designing a buffer layer near the Li anode surface to regulate Li+ spatial arrangement by introducing TMPB into the carbonate electrolyte. The buffer layer induced by TMP+ allows solvated Li+ sufficient time to redistribute and accumulate on the Li anode surface, resulting in a uniform and concentrated Li+ flow. Additionally, TFSI- participates in the formation of an inorganic-rich solid electrolyte interphase (SEI) with Li3N, enhancing the Li+ conductivity of the SEI. As a result, the stable and uniform Li deposition achieved excellent cycling performance in Li||Li symmetric cells for up to 1000 hours at 0.5 mA cm(-2). Furthermore, the Li||NCM622 full cell exhibited excellent cycling stability with a high-capacity retention rate of 66.7% after 300 cycles.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yulu Yang, Huaping Wang, Chunlei Zhu, Jianmin Ma
Summary: Lithium metal batteries (LMBs) with high-voltage nickel-rich cathode and Li metal anode have the potential for high capacity and power density, but electrolytes that can withstand oxidation on the cathode at high cut-off voltage are urgently needed. This study presents an armor-like inorganic-rich cathode electrolyte interphase (CEI) strategy using pentafluorophenylboronic acid (PFPBA) as an additive to explore oxidation-resistant electrolytes for sustaining 4.8 V Li||LiNi0.6Co0.2Mn0.2O2 (NCM622) batteries. The CEI, which consists of armored lithium borate and abundant LiF, improves the mechanical stability and Li+ conductivity, leading to excellent cycling performance and capacity retention even at 4.8 V cut-off voltage.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yihui Liu, Fusheng Liu, Bingbing Liu, Yaoyao Xiao, Guohui Qin, Jianmin Ma
Summary: In this study, a new type of antimony (Sb)-based anode material Bi0.67Sb1.33S3/PET@PTA was designed. The Bi0.67Sb1.33S3 nanospheres were embedded into in situ formed poly(3,4-ethylenedioxythiophene) crosslinked with polythioctic acid (PET@PTA), showing remarkable self-healing ability and wide temperature adaptability. The Bi0.67Sb1.33S3/PET@PTA exhibited excellent storage performance in potassium-ion batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Cai Hong Zhang, Tong Jin, Jiandong Liu, Jianmin Ma, Nian Wu Li, Le Yu
Summary: This study proposes a novel in situ formed artificial gradient composite solid electrolyte interphase (GCSEI) layer for highly stable lithium metal anodes. The GCSEI layer, composed of inner rigid inorganics and outer flexible polymers, enables uniform Li plating and accommodates volume change. The research demonstrates fast Li+ ion transport and diffusion kinetics, and exhibits excellent cycling stability.
Article
Chemistry, Physical
Huaming Yu, Dongping Chen, Quanyu Li, Chunshuang Yan, Zihao Jiang, Liangjun Zhou, Weifeng Wei, Jianmin Ma, Xiaobo Ji, Yuejiao Chen, Libao Chen
Summary: The addition of trace hexamethylenetetramine (HMTA) additive improves the reversibility and performance of zinc batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jiandong Liu, Mingguang Wu, Xin Li, Daxiong Wu, Huaping Wang, Junda Huang, Jianmin Ma
Summary: Constructing robust electrode electrolyte interphases (EEIs) with polar amide groups and a Li3N/LiF heterostructure can enhance the charge cut-off voltage of LiCoO2 at 4.6 V, improving the battery density and addressing the challenge of structural instability.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Kanglong Guo, Chunlei Zhu, Huaping Wang, Shihan Qi, Junda Huang, Daxiong Wu, Jianmin Ma
Summary: Increasing the cut-off voltage of cathodes improves the energy density of Li||LiCoO2 batteries, but also leads to rapid battery degradation due to oxidation and deterioration. However, by using bis-(benzenesulfonyl)imide (BBSI) as an additive, a uniform and highly Li+ conductive cathode electrolyte interphase (CEI) is constructed, which stabilizes the batteries at 4.6 cut-off voltage and exhibits superior cycling and high-rate performance. The CEI, consisting of LiF and conductive Li+ moieties, improves Li+ migration, alleviates cathode degradation, and reduces other secondary degradation factors. Li||LiCoO2 batteries with 1% BBSI-containing electrolyte sustain 81.30% of initial capacity after 300 cycles at 0.5C, and 88.27% of initial capacity even after 500 cycles at 2C/3C.
ADVANCED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Yudong Zhang, Peng Wei, Bo Zhou, Hongshun Zhao, Zihao Wang, Jianmin Ma, Yurong Ren
Summary: In this study, ethoxy(pentafluoro)cyclotriphosphazene (PFPN) was used as an electrolyte additive to construct a stable electrolyte interphase, which could suppress gas generation and cathode corrosion in lithium-ion batteries. The addition of PFPN also improved the wettability of the separator and exhibited a flame-retardant effect.
Article
Computer Science, Information Systems
Chuan Zhu, Wenjun Zhou, Yingjun Zhu, Jianmin Ma
Summary: This paper proposes a neighboring-part dependency mining and feature fusion network (NDMF-Net) to address the issue of existing methods ignoring less obvious features and spatial interdependencies. Experimental results demonstrate that our method is effective and achieves state-of-the-art performance.
Article
Chemistry, Multidisciplinary
Huaming Yu, Dongping Chen, Xuyan Ni, Piao Qing, Chunshuang Yan, Weifeng Wei, Jianmin Ma, Xiaobo Ji, Yuejiao Chen, Libao Chen
Summary: In this study, l-carnitine (l-CN) is proposed as an efficient additive to stabilize both electrodes and extend the lifespan of aqueous Zn-ion batteries. The simultaneous presence of quaternary ammonium cations, COO- anions, and hydroxyl groups in a trace amount of added l-CN has a significant impact on the behavior of Zn2+ deposition/insertion and water molecule activity. The addition of l-CN leads to ultralong life in the symmetric cell with an 87-fold improvement in cycle life (over 6000 h, 1 mA cm(-2)/1 mA h cm(-2)) for dendrite-free Zn plating/stripping and enables the Zn//V2O5 full cell to achieve 3500 cycles with a high capacity retention.
ENERGY & ENVIRONMENTAL SCIENCE
(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)
