Article
Chemistry, Multidisciplinary
Jaswinder Sharma, Georgios Polizos, Marm Dixit, Charl J. Jafta, David A. Cullen, Yaocai Bai, Xiang Lyu, Jianlin Li, Ilias Belharouak
Summary: Lithium-ion battery cathode materials often suffer from degradation issues, which can harm their overall performance. Oxide coatings have been proven to be effective in improving electrochemical performance, however, current coating methods are not efficient and can be costly. In this article, a low-cost and scalable strategy for applying oxide coatings on cathode materials is discussed, showing enhancement in the performance of aqueously processed cathodes in cells. This strategy shows potential in improving the performance of aqueously processed Li-ion cells.
Article
Electrochemistry
Yi Yang, Yu-xin Liu, Bo -wen Deng, Yan Li, Bo Yin, Ming-bo Yang
Summary: High-performance supercapacitors are highly researched, but the optimization of conductive bonding networks in the electrode to improve its electrochemical performance has been neglected. In this study, a designed three-dimensional conductive bonding network consisting of carboxylated carbon nanotubes (CNT-COOH) and reduced holey graphene oxide (rHGO) is introduced to the electrode, enhancing its electron transport and ion diffusion properties. The resulting electrode exhibits better capacitive performance and structural stability, even after 4500 cycles. Additionally, an asymmetric supercapacitor with high energy density and flexibility is assembled using this strategy.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Shiying Lin, Lanlan Mo, Feijun Wang, Ziqiang Shao
Summary: This study reports a N/O co-doped porous carbon material with excellent electrochemical performance, including high capacitance, excellent rate retention, and superior cyclic stability, demonstrating its promising potential as an electrode material for advanced energy storage devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biochemistry & Molecular Biology
Shujun Liang, Wenyang Xu, Liqiu Hu, Ville Yrjana, Qingbo Wang, Emil Rosqvist, Luyao Wang, Jouko Peltonen, Jessica M. M. Rosenholm, Chunlin Xu, Rose-Marie Latonen, Xiaoju Wang
Summary: One-dimensional nanomaterials of conductive polypyrrole (PPy) synthesized using lignocellulose nanofibrils (LCNF) as a template show high electrical conductivity and low cytotoxicity, making them promising for constructing bioelectronics. The PPy@LCNFs can be easily processed into thin coatings, flexible membranes, and three-dimensional cryogels. The dynamic control of doping/undoping process through an electric field enables both electronic and ionic conductivity. This study demonstrates the potential of PPy@LCNFs as a smart platform nanomaterial for interfacing bioelectronics.
Article
Chemistry, Multidisciplinary
Penghui Zhu, Jiahao Han, Wilhelm Pfleging
Summary: In this study, aqueous processing of thick-film NMC 622 cathodes using carboxymethyl cellulose and fluorine acrylic hybrid latex as binders, with the addition of acetic acid to adjust slurry pH values, was investigated to improve traditional cathode manufacturing process.
Article
Polymer Science
Hansong Li, Xinlin Tuo, Bao-Hua Guo, Jian Yu, Zhao-Xia Guo
Summary: This study compared the properties of three different CB conductive networks formed under different blending ratios, and found that the electrical percolation threshold of CB depends on the network structure. The rheological percolation thresholds are close to the actual electrical performance threshold. The formation mechanisms of the various CB network structures were also analyzed.
Article
Materials Science, Multidisciplinary
Wei Pi, Liping Zhou, Wei Zhang, Songyang Liu, Ci Li, Meng Zhang, Yongqiang Wen, Peixun Zhang
Summary: In this study, PCL/CNTs scaffolds were fabricated and shown to promote Schwann cell proliferation and neurotrophic factor gene expression through electrical stimulation. The scaffolds were also found to effectively promote nerve regeneration and functional recovery in a rat sciatic nerve defect model.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Hanwei Wang, Jinzhou Fu, Chao Wang, Ruiwang Zhang, Yushan Yang, Yingying Li, Caicai Li, Qingfeng Sun, Huiqiao Li, Tianyou Zhai
Summary: The study introduces a novel aqueous conductive binder made of carbon nanotubes interwoven in cellulose nanosheets, which enables the fabrication of flexible and high-strength electrodes for universal active materials. This conductive binder allows for a high mass loading of up to approximately 90 mg cm(-2), providing outstanding flexibility and mechanical integrity in electrodes.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Cong Zhao, Fang-mei Li, Yu-fei Zhai, Song Li, Hong-yu Yu, Min Wang
Summary: This paper presents a microtransfer-printing method for preparing a high-wettability PDMS substrate to control the formation of 3D woven AgNW grids. The as-prepared PDMS substrate shows a high wettability performance, allowing for the formation of a uniform 3D woven AgNW network. The coated networks have excellent mechanical performance and potential for flexible optoelectronic applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Thi Thu Trinh Phan, Sojeong Roh, Jun Seop Lee
Summary: Recently, research has been conducted on materials that can block noise in a wide frequency range and transfer frictional heat generated from noise blocking to prevent damage from noise. A 3D lamella structure with excellent sound absorption and thermal conductivity was manufactured using porous melamine foam as the basic material. This structure showed outstanding sound absorption performance in a wide frequency range and had a higher thermal conductivity value than the original material. It also exhibited high structural stability and elastic recovery performance after repeated deformations.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Thi Thu Trinh Phan, Sojeong Roh, Jun Seop Lee
Summary: Recently, there has been increasing concern over the impact of noise on human quality of life. To address this, researchers are working on developing materials that can block a wide range of frequencies of noise and transfer the heat generated. In this study, a three-dimensional lamellar structure made from porous melamine foam was created using a dipping process and vapor deposition polymerization. This structure exhibited excellent sound absorption performance in the frequency range of 250-6300 Hz, with a sound absorption coefficient of 0.96 at 4000 Hz. Additionally, the structure had a higher thermal conductivity value than the melamine foam and maintained its mechanical performance even after 500 deformations.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Linqing Yue, Bo Zhong, Long Xia, Tao Zhang, Yuanlie Yu, Xiaoxiao Huang
Summary: This study successfully prepared a series of three-dimensional network-like structures formed by silicon-coated carbon nanotubes through an improved process, which play a significant role in enhancing the electromagnetic wave absorption performance and achieved good absorption effects.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Chemical
Liyan Liu, Cong Zhao, Fenghua Zheng, Dingfei Deng, Marc A. Anderson, Yang Wang
Summary: The study developed a three-dimensional composite electrode consisting of carbon fiber and yak hair, which exhibits excellent specific capacitance, salt adsorption capacity, and cycling stability, making it a low-cost and simple assembly solution for achieving a high mass loading and scalable electrode for industrial CDI applications.
Article
Chemistry, Physical
Marie Bichon, Dane Sotta, Eric De Vito, Willy Porcher, Bernard Lestriez
Summary: This study investigates water-processed LiNi0.5Mn0.3Co0.2O2 cathodes (NMC532) and explores methods to avoid corrosion of aluminum current collectors during aqueous processing, such as adding phosphoric acid or using carbon-coated collectors. By evaluating the impact of phosphoric acid on electrochemical performance and conducting post mortem analyses on cycled cathodes, the study concludes on the influence of binders, current collectors, and aqueous immersion of NMC532 powder.
JOURNAL OF POWER SOURCES
(2021)
Article
Materials Science, Composites
Xian Wu, Wei Liu, Fa-guo Shi, Le Yang, Chun Zhang
Summary: In this work, a three-dimensional boron nitride framework was fabricated and infiltrated with liquid epoxy resin, resulting in thermally conductive composites with greatly improved heat dissipation capability. This research provides a facile method for developing thermal conductive composites applied in thermal management for electronics.
POLYMER COMPOSITES
(2022)
Article
Chemistry, Physical
Xiang Lyu, Tim Van Cleve, Erica Young, Jianlin Li, Haoran Yu, David A. Cullen, K. C. Neyerlin, Alexey Serov
Summary: Proton exchange membrane fuel cells (PEMFCs) powered by green hydrogen (H2) are a promising alternative to traditional hydrocarbon-fueled power generators. However, further improvements are needed in efficiency, durability, and low-cost production for widespread adoption. Most strategies to improve PEMFC electrodes utilize single material sets, but anisotropic electrode structures with locally tunable properties may offer enhanced performance due to improved transport.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Ceramics
Shengliang Xie, Hui Yu, Liangguang Liu, Jianlin Li
Summary: Lead glaze with excellent radiation shielding ability can effectively prevent radiation leakage by using lead glazed indoor titles in buildings. However, the low firing temperature of lead glaze is associated with poor wear resistance. In this study, super-hard cBN particles are introduced into the soft glass matrix to improve mechanical properties. Results show that with 5 wt% cBN particles embedded in the glass matrix, the hardness increases by 51.2% and the wear resistance significantly improves.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Jaswinder Sharma, Georgios Polizos, Marm Dixit, Charl J. Jafta, David A. Cullen, Yaocai Bai, Xiang Lyu, Jianlin Li, Ilias Belharouak
Summary: Lithium-ion battery cathode materials often suffer from degradation issues, which can harm their overall performance. Oxide coatings have been proven to be effective in improving electrochemical performance, however, current coating methods are not efficient and can be costly. In this article, a low-cost and scalable strategy for applying oxide coatings on cathode materials is discussed, showing enhancement in the performance of aqueously processed cathodes in cells. This strategy shows potential in improving the performance of aqueously processed Li-ion cells.
Article
Plant Sciences
Chao Ji, Zengwen Liang, Hui Cao, Zhizhang Chen, Xuehua Kong, Zhiwen Xin, Mingchao He, Jie Wang, Zichao Wei, Jiahao Xing, Chunyu Li, Yingxiang Zhang, Hua Zhang, Fujin Sun, Jianlin Li, Kun Li
Summary: This study investigated changes in gene expression profiles in wheat roots and leaves after inoculation with compound microbial agents and revealed that compound microbial inoculants could improve salt tolerance and disease resistance in wheat by regulating the expression of metabolism-related genes and activating immune pathway-related genes.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Energy & Fuels
L. S. Lin, J. L. Li, I. M. Fishman, L. Torres-Castro, Y. Preger, V. De Angelis, J. Lamb, X. Q. Zhu, S. Allu, H. Wang
Summary: Thermal runaway is an important safety concern for Li-ion batteries, and a standardized single-side indentation test protocol was developed to induce an internal short-circuit. Cell voltage, temperature, and applied compressive force were monitored over time. The observed hazard severity (OHS) and calculated hazard severity (CHS) were used to assess the thermal runaway severity of over 100 Li-ion batteries with different states of charge (SOC) and chemistries, providing a clear comparison for battery designers, manufacturers, and end-users.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
X. Lyu, T. Zhang, Z. Li, C. J. Jafta, A. Serov, I. -H. Hwang, C. Sun, D. A. Cullen, J. Li, J. Wu
Summary: This study investigates the effect of trace Cu loading on metal-free catalysts for CO/CO2 reduction reactions (CORR). It is found that increasing Cu loading switches the selectivity from C1 (CH4) to C2 products in CORR. At a Cu loading of 2.5 mu g/cm2, the Faradaic efficiency of CH4 in CORR decreased from 62% to 52% for C2 products. Further increasing the atomic Cu loading to 3.8 mu g/cm2 promotes the Faradaic efficiency of C2 products to 78%. CO2RR requires higher Cu loading than CORR to switch the selectivity from C1 to C2 products. This study clarifies the distinct impact of trace Cu on the activity/selectivity between CORR and CO2RR.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Runming Tao, Susheng Tan, Harry M. Meyer III, Xiao-Guang Sun, Bryan Steinhoff, Kahla Sardo, Amer Bishtawi, Tillman Gibbs, Jianlin Li
Summary: Dry processing is a promising method for high-performance and low-cost lithium-ion battery manufacturing which uses polytetrafluoroethylene (PTFE) as a binder. The electrochemical stability of PTFE binder in the cathodes and the chemistry of the cathode electrolyte interphase (CEI) layers are studied by cycling the high-loading dry-processed electrodes in electrolytes with LiPF6 or LiClO4 salt. The detection of LiF confirms that PTFE undergoes side reactions in the cathodes, and the thickness of the CEI layer is found to be much thicker when LiPF6 is used as the electrolyte salt compared to LiClO4.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Electrochemistry
Xiang Lyu, Dimitra Anastasiadou, Jithu Raj, Jingjie Wu, Yaocai Bai, Jianlin Li, David A. Cullen, Jun Yang, Liliana P. L. Gonsalves, Oleg I. Lebedev, Yury V. Kolen'ko, Marta Costa Figueiredo, Alexey Serov
Summary: A facile approach for synthesizing M-N-C catalysts (M = Co, Fe, Ni) without organic solvents at a commercial scale is reported. Single atomic catalysts with high surface areas were successfully obtained. Among the synthesized catalysts, Ni-N-C exhibited the highest performance in the electrochemical CO2 reduction reaction, with 80% Faradaic efficiency of CO production at -0.49 VRHE and a turnover frequency of 57,379 h-1. The large-scale synthesis and high performance of M-N-C catalysts enable their practical implementation in industrially relevant CO2RR.
ELECTROCHIMICA ACTA
(2023)
Article
Agricultural Engineering
Jianlin Li, Hong Lei, Xuedong Xi, Chunyin Li, Defa Hou, Jiaxuan Song, Guanben Du
Summary: This paper investigates a novel bio-based adhesive, tannin-citric acid (TCA) adhesive, for preparing wood-based panels. By optimizing the synthesis parameters, high-performance plywood with favorable properties is achieved. The TCA adhesive meets the Chinese National Standard and demonstrates great potential for industrial production of high-performance wood-based panels.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Industrial
Jaswinder Sharma, Zoriana Demchuk, Georgios Polizos, Nihal Kanbargi, Runming Tao, Amit Naskar, Jianlin Li
Summary: The development of high-voltage cathode materials driven by high energy density demand requires improved electrochemical stability of battery components. A metal-free composite film containing carbon fiber, carbon nanotube, and polymer was developed to replace aluminum foil as a cathode current collector. The CF-CNT-P composite demonstrated excellent electrochemical and thermal stability, with cathodes coated on it showing improved performance compared to those deposited on conventional aluminum foil. The lightweight and simplified recycling process further contribute to its potential in high-energy-density batteries.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Physical
Runming Tao, Bryan Steinhoff, Conrad H. Sawicki, Jaswinder Sharma, Kahla Sardo, Amer Bishtawi, Tillman Gibbs, Jianlin Li
Summary: Dry processing of lithium-ion battery electrodes is considered a promising strategy for manufacturing, but little is known about the impact of dry mixing. This study monitors the degree of dry mixing using dry mixing time and prepares a series of dry-processed electrodes with different degrees of dry mixing. It reveals that the degree of dry mixing significantly affects the morphology, homogeneity of electrode components, and PTFE fiberization, leading to variations in the mechanical strength and electrochemical performance of dry-processed electrodes. It is suggested that a moderate degree of dry mixing is preferred for high-performance dry-processed lithium-ion battery electrodes.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Runming Tao, Bryan Steinhoff, Kuebra Uzun, Ben Ben La Riviere, Kahla Sardo, Brendan Skelly, Ryan Hill, Yang-Tse Cheng, Jianlin Li
Summary: Dry processing has advantages over conventional slurry-based processing in electrode fabrication, improving the mechanical and electrochemical properties. Controlling the electrode porosity can enhance the fracture behavior of the electrode.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Georgios Polizos, Sergiy Kalnaus, Xi Chelsea Chen, Marm Dixit, Mahalingam Balasubramanian, Jaswinder Sharma, Runming Tao, Jianlin Li
Summary: This study developed structured cathodes for solid state batteries using a freeze tape casting technique. The double-layer configuration with a dense bottom layer for energy density and a porous top layer for power density improved the battery performance. The structured cathodes exhibited higher capacity values and better Coulombic efficiency.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Engineering, Environmental
Xiang Lyu, Yaocai Bai, Jianlin Li, Runming Tao, Jun Yang, Alexey Serov
Summary: This study evaluated two commercially available stainless steel mesh substrates (316 SS and 304 SS) as electrodes for oxygen evolution reaction (OER) in natural seawater electrolysis. The results show that 304 SS is less stable against corrosion under neutral and low alkaline seawater electrolytes due to metal dissolution and chlorine evolution reaction (CER), while 316 SS outperforms 304 SS in terms of electrocatalytic activity and corrosion resistance. The performance of 304 SS is comparable to 316 SS under high alkaline seawater electrolyte, where CER and metal dissolution are suppressed by OER.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Electrochemistry
Jaehyeung Park, Jaswinder Sharma, Charl J. Jafta, Lilin He, Harry M. Meyer, Jianlin Li, Jong K. Keum, Ngoc A. Nguyen, Georgios Polizos
Summary: In this study, surface modified reduced graphene oxide (rGO) aerogels were synthesized and their structure and functionality were investigated. The surface modification resulted in a significant decrease in the oxygen content of the aerogels, and the modified aerogels showed a disordered stacking of rGO layers. The modification introduced a broad distribution of the interlayer spacing and structural heterogeneities.
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)
