Article
Chemistry, Physical
Dominik Petz, Volodymyr Baran, Christoph Peschel, Martin Winter, Sascha Nowak, Michael Hofmann, Robert Kostecki, Rainer Niewa, Michael Bauer, Peter Mueller-Buschbaum, Anatoliy Senyshyn
Summary: This study conducted low-temperature research on high-energy lithium-ion batteries using various techniques, finding that fatigue state significantly impacts battery performance, with electrolyte decomposition playing a crucial role in battery degradation.
ADVANCED ENERGY MATERIALS
(2022)
Article
Electrochemistry
Erfan Moyassari, Luiza Streck, Neelima Paul, Markus Trunk, Robert Neagu, Chia-Chin Chang, Shang-Chieh Hou, Bastian Maerkisch, Ralph Gilles, Andreas Jossen
Summary: Silicon is a promising candidate for anode material in lithium-ion batteries due to its high specific capacity, but suffers from poor capacity retention due to volume changes and side reactions. Alternative compositions like silicon-graphite (SiG) with lower silicon content and similar working voltage can reduce volume changes and side reactions while maintaining high capacity. Neutron depth profiling (NDP) provides the unique ability to quantify lithium concentration profiles and reveal homogeneous irreversible lithium accumulation within the entire electrode depth.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Robert Bradbury, Nikolay Kardjilov, Georg F. Dewald, Alessandro Tengattini, Lukas Helfen, Wolfgang G. Zeier, Ingo Manke
Summary: The elucidation of lithium ion transport pathways through a solid electrolyte separator is important for the development of all-solid-state batteries. Neutron imaging was performed on an all-solid-state lithium-sulfur battery using an increased Li-6 content in the anode. This allowed for differentiation between the mobile lithium ions diffusing through the cell and those initially located in the solid electrolyte, and demonstrated the lithium ion diffusion through the cell and the distribution of trapped lithium ions in charged and discharged states.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Wei Zhong, Ziqi Zeng, Shijie Cheng, Jia Xie
Summary: Prelithiation technology is one of the most effective methods to compensate for the loss of active lithium. This review analyzes the factors inducing lithium loss and investigates the mechanisms and effects of prelithiation. The emerging advanced prelithiation technologies and key issues are systematically summarized. Hybrid replenishment and lithium storage technologies are proposed to provide a reference for developing prelithiation technology.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Patrick Muenster, Marcel Diehl, Joop Enno Frerichs, Markus Boerner, Michael Ryan Hansen, Martin Winter, Philip Niehoff
Summary: The study demonstrates that applying a 2C C-rate can reduce the formation time of lithium ion batteries, but may also result in the occurrence of lithium plating. However, using different C-rates during formation process does not significantly affect the thermal safety and cycling performance.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
A. Senyshyn, V Baran, M. J. Muehlbauer, M. Etter, M. Schulz, K. Tu, Y. Yang
Summary: This study utilized a combination of high-resolution neutron powder diffraction, energy-dependent cold-neutron radiography, and synchrotron-based X-ray diffraction radiography on pouch bag cells to probe the crystal structure evolution and uniformity in cell electrodes. A phase transition from rhombohedral to monoclinic was detected in both custom-built cells utilizing LiCoO2 and LiNi0.5Mn0.2Co0.3O2 cathodes. X-ray diffraction radiography revealed heterogeneous lithium distribution in the graphite anode and cathodes.
ACS APPLIED ENERGY MATERIALS
(2021)
Review
Chemistry, Physical
Partha P. Paul, Eric J. McShane, Andrew M. Colclasure, Nitash Balsara, David E. Brown, Chuntian Cao, Bor-Rong Chen, Parameswara R. Chinnam, Yi Cui, Eric J. Dufek, Donal P. Finegan, Samuel Gillard, Wenxiao Huang, Zachary M. Konz, Robert Kostecki, Fang Liu, Sean Lubner, Ravi Prasher, Molleigh B. Preefer, Ji Qian, Marco-Tulio Fonseca Rodrigues, Manuel Schnabel, Seoung-Bum Son, Venkat Srinivasan, Hans-Georg Steinruck, Tanvir R. Tanim, Michael F. Toney, Wei Tong, Francois Usseglio-Viretta, Jiayu Wan, Maha Yusuf, Bryan D. McCloskey, Johanna Nelson Weker
Summary: This review discusses various approaches used to detect and characterize the formation of Li in batteries, each technique has its unique advantages and limitations towards solving part of the puzzle of battery degradation. Multimodal characterization holds promise for addressing concerns in the implementation of the next generation of batteries in the transportation sector.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Tianhao Wu, Xiang Liu, Xu Zhang, Yue Lu, Boya Wang, Qingsong Deng, Yubo Yang, Errui Wang, Zhongtian Lyu, Yaoqian Li, Yongtao Wang, Yan Lyu, Cunfu He, Yang Ren, Guiliang Xu, Xueliang Sun, Khalil Amine, Haijun Yu
Summary: A new type of lithium-rich layered oxide material was designed in this study, which successfully reduced voltage decay, improved cycle performance, and thermal stability without any material modifications or electrolyte optimizations. The research results demonstrate that the gradient-tailored material can effectively reduce the thermal release of the battery when charged to the maximum voltage.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Pallavi Thakur, Khorsed Alam, Prasenjit Sen, Tharangattu N. Narayanan
Summary: By incorporating -OH functionalities into the cathode through polysaccharide addition, the discharge capacity and cyclability of Li-O2 batteries are enhanced. This rational design route provides high capacities for the emergent Li-O2 batteries.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Yongjian Zheng, Zhenguo Yao, Zulipiya Shadike, Meng Lei, Jianjun Liu, Chilin Li
Summary: This study investigated a method to improve the low electric conductivity and particle pulverization issues of T-Nb2O5 by enriching oxygen vacancies, thereby enhancing its electric conductivity and electrochemical kinetics, and constructing a Nb2O5-x electrode with excellent cycling stability and high-rate performance under the control of oxygen defects.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Physical
Xin Cao, Yu Qiao, Min Jia, Ping He, Haoshen Zhou
Summary: This study reviews the potential application of Li-rich and Li-excess oxides as cathode materials for next-generation Li-ion batteries, discusses the challenges in using Li-excess oxides, and explores mechanisms to address these issues. Future research directions in the field are also proposed based on advanced characterizations and theory calculations.
ADVANCED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Sanghamitra Moharana, Geoff West, Marc Walker, Xinjie S. Yan, Melanie Loveridge
Summary: The addition of KPF6 in the electrolyte can promote the formation of a robust SEI layer, effectively inhibiting the growth of Li dendrites. The KPF6 additive can form a thin and durable SEI layer rich in LiF, which blocks the electron leakage pathways. Additionally, KPF6 additive can reside at defect sites, hindering the incoming of Li+ and restricting the growth of Li dendrites. Optimizing the electrode/electrolyte interphase by controlling the concentration of additives has implications for fast charging.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Xu Jin, Yehu Han, Zhengfeng Zhang, Yawei Chen, Jianming Li, Tingting Yang, Xiaoqi Wang, Wanxia Li, Xiao Han, Zelin Wang, Xiaodan Liu, Hang Jiao, Xiaoxing Ke, Manling Sui, Ruiguo Cao, Genqiang Zhang, Yongfu Tang, Pengfei Yan, Shuhong Jiao
Summary: This study reports on the exceptional fast charge/discharge performance and long-term stability of a mesoporous single-crystalline lithium titanate (MSC-LTO) microrod in lithium-ion batteries (LIBs). The microrods exhibit high rate capability and minimal structure degradation, providing a new approach for developing fast-charging materials for LIBs.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Shan Zhang, Peng Gao, Yasong Wang, Jing Li, Yongming Zhu
Summary: The cathodes of LiNiO2, Li[Ni0.9Mn0.1]O2, and the concentration gradient material Li[Ni0.9Mn0.1]O2 were synthesized by co-precipitation method. Tests showed that the gradient material G-LNM91 exhibited the best cycle performance among the three materials, with significant improvement in cycle performance due to manganese substitution.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
S. Vauthier, M. Alvarez-Tirado, G. Guzman-Gonzalez, L. C. Tome, S. Cotte, L. Castro, A. Gueguen, D. Mecerreyes, N. Casado
Summary: The role of binders is crucial to achieve high performance and long cycle lives in next-generation electrodes for lithium batteries. In this study, PDADMA poly(ionic liquid)s with fluorinated anions were used as cathode binders in Li-ion and Li-air batteries, showing improved cell performances and enhanced capacity values, rate performance, and cycling stability. The proposed fluorinated PDADMA Poly(ionic liquid)s can be a highly competitive alternative to conventional binders used nowadays in Li-ion and Li-air batteries.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Hsinhan Tsai, Shreetu Shrestha, Lei Pan, Hsin-Hsiang Huang, Joseph Strzalka, Darrick Williams, Leeyih Wang, Lei R. Cao, Wanyi Nie
Summary: The authors report a solution method to produce high-quality quasi-2D perovskite crystalline layers and detectors suitable for X-ray imaging. The photodiodes built with the quasi-2D layers exhibit low dark current and stable operation, and the detector shows a high sensitivity to X-ray. High-resolution images can be obtained using a single pixel device.
ADVANCED MATERIALS
(2022)
Article
Engineering, Manufacturing
M. P. Haines, K. Carver, D. N. Leonard, A. Plotkowski, C. M. Fancher, R. R. Dehoff, S. S. Babu, F. List
Summary: The goal of printing soft magnetic Fe-Si steels using additive manufacturing is to achieve better performance through complex geometric designs and site-specific grain control. This study specifically explores the impact of scan strategy on the annealing response for thin wall geometries. The results show that the difference in annealing response is mainly attributed to the difference in grain size and density of high angle grain boundaries.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Mechanical
Vanshika Singh, S. S. Babu, M. M. Kirka, Anand Kulkarni
Summary: Superheater tubes, critical boiler components operating at high temperatures, were studied in this research. A novel teardrop-shaped design was proposed to improve tube performance and creep life, with metal additive manufacturing being used for practical implementation. Results showed superior performance of teardrop-shaped tubes compared to traditional circular tubes.
JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME
(2022)
Article
Chemistry, Analytical
Guoping Cao, Nicole Larson, Brian Storms, Praneeth Kandlakunta, Lei R. Cao, Shelly Li
Summary: The study evaluated the use of radioactive tracer dilution and gamma spectroscopy in monitoring the mass of liquid salt in molten salt systems, focusing on the uncertainty analysis of Eu-154 isotope's gamma radioactivity. The research found that a longer data acquisition time and higher count rate gamma detector significantly improved the uncertainty of Eu-154 from 7% or 8% to 3%.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Article
Instruments & Instrumentation
Ibrahim Oksuz, Matt Bisbee, James Hall, Nerine Cherepy, Lei Cao
Summary: This study investigates the factors influencing spatial resolution in fast neutron imaging and suggests candidate materials for characterizing spatial resolution. The results show that spatial resolution deteriorates with increasing target thickness.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2022)
Article
Nanoscience & Nanotechnology
Ryan Tan, Bogdan Dryzhakov, Kate Higgins, Jessica Charest, Zachary Dancoes, Praneeth Kandlakunta, Lei R. Cao, Mahshid Ahmadi, Bin Hu, Eric Lukosi
Summary: This study explores the incorporation of lithium in the form of LiCl into the MAPB structure to enhance thermal neutron sensitivity. The research demonstrates the successful growth of high-quality lithium-doped MAPB crystals and the first demonstrated gamma ray and thermal neutron sensing based on these crystals.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Amy J. Godfrey, J. Simpson, D. Leonard, K. Sisco, R. R. Dehoff, S. S. Babu
Summary: This study investigates the fish-scale microstructural feature in 316L austenitic stainless steel parts made by laser powder bed fusion. The research finds that the fish-scale structures are related to a phase selection phenomenon during solidification caused by spatial and temporal variation of thermal gradients and liquid-solid interface velocity. The significance of these phase transformation pathways in additively manufactured 316 stainless steel components for harsh environments is discussed.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Kevin D. Sisco, Alex Plotkowski, Ying Yang, Larry Allard, Chris Fancher, Claudia Rawn, Jonathan D. Poplawsky, Ryan Dehoff, S. S. Babu
Summary: Heat treatment of additively manufactured Al-Ce based multicomponent alloys leads to complex micro-structure evolution. The study explores the phase transformation theories involving nucleation from a heterogeneous multi-phase microstructure typical to that of additively manufactured samples. Different solidification microstructures were obtained due to spatial and temporal variations of thermal gradients (G) and liquid-solid interface velocities (R) within a given melt pool. The phase transformation pathways are rationalized based on the role of driving force on the nucleation of different phases at the interface of aluminum and the non-equilibrium intermetallic phases.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Physics, Applied
K. D. Koube, T. Sloop, K. Lamb, J. Kacher, S. S. Babu, N. N. Thadhani
Summary: This study investigates spall failure and damage modes in Laser Powder Bed Fusion fabricated Stainless Steel 316L (SS316L) with intentional low-volume porosity. The results show that the suppression of spall failure is observed with increasing porosity, transitioning from spall-centered tensile stress dominated failure to a pore-centered microstructure-dominated damage mode involving void/crack nucleation and growth. The critical porosity level and spall location depend on both the volume fraction and the size of the initially fabricated pores. Heterogeneous deformation twinning, shear banding, grain rotation, and cracking are observed around pre-existing pores and expected spall failure sites.
JOURNAL OF APPLIED PHYSICS
(2023)
Editorial Material
Engineering, Electrical & Electronic
Bharat Bhushan
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2023)
Article
Multidisciplinary Sciences
Jacqueline M. M. Anderson, Amber A. A. Boardman, Rhiannon Bates, Xunchang Zou, Wei Huang, Lei Cao
Summary: Enriched environment (EE) improves metabolic and behavioral outcomes in BTBR mice, potentially through the BDNF-TrkB signaling pathway. Overexpression of TrkB.FL BDNF receptor in the hypothalamus of BTBR mice improves metabolic phenotypes but does not affect behavioral deficits.
Article
Nuclear Science & Technology
Carol Smidts, Gustavo Reyes, Cassiano Endres de Oliveira, Lei Raymond Cao
Summary: This paper discusses the research challenges of nuclear security and safeguards posed by nuclear fission batteries, which are easily transportable and deployable nuclear systems. It analyzes the impact on domestic and international safeguards and security and identifies gaps in technology development for practical deployment. The study highlights the need for comprehensive cyber tools and security considerations from the design phase.
PROGRESS IN NUCLEAR ENERGY
(2023)
Review
Engineering, Electrical & Electronic
Bharat Bhushan
Summary: The development of technologies such as big data analytics, cloud services, IoT, personal mobile devices, social networks, and AI has created a strong demand for enterprises to accumulate information. The amount of recorded data is increasing by about 30-40% per year. Magnetic tape, hard disk drives, and solid-state drives are used for data storage. Hard disk drives are projected to control over half of the world's data due to their low cost per TB. This paper discusses new technologies to meet the growing density demands and competitive solid-state drives for data storage.
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2023)
Article
Materials Science, Multidisciplinary
Hsinhan Tsai, Lei Pan, Xinxin Li, Jinkyoung Yoo, Sergei Tretiak, Xuedan Ma, Lei R. Cao, Wanyi Nie
Summary: The study reports a perovskite polycrystalline thin film detector fabricated by solution method, which is a low-cost, scalable technology for radiation imaging. However, the thin volume of the detector limits its sensing efficiency for high-energy X-ray photons. Detailed characterizations reveal that a charge multiplication effect is responsible for the observed high gain. The study also identifies that the use of butylamine spacers in the 2D perovskite thin film leads to a larger efficiency gain compared to phenylethylamines.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Peter C. Metz, Zach Arwood, Cole Franz, Eric Heikkenen, Vivek Chawla, Sudarsanam Suresh Babu, Dayakar Penumadu, Katharine Page
Summary: Evaluation of Ti-6Al-4V material deposited by AFSD on rolled Ti-64 base plate revealed different stress-strain responses between base plate and AFSD regions. Microstructure gradients observed by optical microscopy and spatially resolved PXRD rationalized these differences. AFSD regions exhibited a characteristic basket weave α-Ti microstructure, while the base plate showed a globular α+6 microstructure. Control of prior 6 microstructure using targeted deposition parameters will be critical for achieving desired properties using AFSD with titanium alloys.
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)
