Article
Chemistry, Physical
Shiyu Wang, Ru Yang, Bingcan Li, Rui Zhao, Shuyun Yao, Ruochen Liu, Zhiyu Yang, Yi-Ming Yan
Summary: This study presents the preparation of heterostructures of carbon nitride and manganese oxides, which enhances the Na+ storage capability. The resulting electrode materials exhibit high reversible capacity and ultrahigh rate capability. The mechanism behind the improved storage performance is the modulation of the electronic structure of the multi-phase electrode materials.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Multidisciplinary
Anis Ur Rahman, Nighat Zarshad, Jianghua Wu, Faisal Faiz, Fazal Raziq, Asad Ali, Guigen Li, Henmei Ni
Summary: This article presents an electrode made of uniform and ultrathin nanosheets of silver-doped manganese oxide (Ag2MnO2) with outstanding specific capacitance and energy density for high-performance aqueous asymmetrical supercapacitors. The electrode shows high specific capacitance at high current densities and good energy density even at higher power densities. The device offers excellent cycling stability and capacitance retention.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Energy & Fuels
Natarajan Sumangala Devi, Muruganandham Hariram, Singaravelu Vivekanandhan
Summary: Carbon materials derived from various biomasses are increasingly important in energy storage and conversion applications, particularly in supercapacitors. Despite their advantages, such as abundance and renewable origin, they face challenges such as limited capacitive performance in their pristine form. Various physicochemical modification techniques are being adopted to enhance their performance for supercapacitor applications.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Engineering, Environmental
Shuyun Yao, Rui Zhao, Shiyu Wang, Yixiang Zhou, Ruochen Liu, Lingyuan Hu, Anqi Zhang, Ru Yang, Xia Liu, Zhenzhen Fu, Dewei Wang, Zhiyu Yang, Yi-Ming Yan
Summary: This study introduces a structure distortion strategy via Ni doping in MnO2 to enhance its Na+ storage performance, demonstrating improved cycling stability and ionic transport kinetics. The Ni-MnO2 material achieved high specific capacity, excellent rate performance, and promising cycling life, showcasing potential for application in energy storage devices.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Di Yu, Xuehua Yu, Chunlei Zhang, Lanyi Wang, Xiaoqiang Fan, Zhen Zhao, Yuechang Wei, Jian Liu, Joanna Grybos, Bartosz Leszczynski, Anna Wach, Dominik Wierzbicki, Andrzej Kotarba, Zbigniew Sojka
Summary: The removal of soot particles by highly efficient catalysts is a major focus of research due to its implications for air pollution and the complexity of the catalytic process. In this study, we synthesized modified Na2Mn3O7 catalysts with single atom Ce and CeO2 nanoparticles, which exhibited exceptional catalytic performance and resistance to water and sulfur. By exploiting the synergy between adsorbed and surface reactive oxygen species and the high yield of NO2, the combustion process of soot was successfully transitioned from gas-solid-solid to gas-gas-solid, achieving low-temperature combustion. This research offers a promising pathway for the development of cost-effective catalysts for the elimination of diesel exhaust emissions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Qinghe Zhao, Aoye Song, Wenguang Zhao, Runzhi Qin, Shouxiang Ding, Xin Chen, Yongli Song, Luyi Yang, Hai Lin, Shunning Li, Feng Pan
Summary: This study reports the Grotthuss proton transport mechanism in alpha-MnO2 for the first time, and reveals that Ni doping can increase the energy density of the electrode, exacerbate lattice distortion, and play a role in hydrogen bond formation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Aijuan Xie, Haoye Wang, Zerui Zhu, Wanqi Zhang, Xiang Li, Qing Wang, Shiping Luo
Summary: The mesoporous CeO2-alpha-MnO2-rGO prepared by hydrothermal method showed excellent electrochemical performance, with high specific capacitance, energy density, and power density, as well as ultrahigh cycle stability, making it a suitable electrode material for supercapacitors.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
V. J. Mane, S. B. Kale, S. B. Ubale, V. C. Lokhande, C. D. Lokhande
Summary: This study prepared Ag-doped MnO2/GO composite thin films using the SILAR method, which exhibited high specific surface area and excellent electro-chemical performance with a maximum specific capacitance of 877 F g(-1) and capacity retention of 94.57% in the electrolyte. The flexible solid state symmetric supercapacitor device showed good cycling stability and electro-chemical performance with a specific capacitance of 164 F g(-1) and capacitive retention of 94% after 10,000 cycles.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Energy & Fuels
Jizhao Zou, Jingyou Xu, Hongliang Wu, Zhangjian Li, Fenglin Zhao, Xierong Zeng, Junfeng Huang
Summary: This study focuses on the fabrication of carbon materials with excellent electrochemical behaviors through carbonization and alkaline activation using golden imperial chrysanthemum as the raw material. The alkaline activation enhances the specific surface area and distribution of pores, resulting in high cycle stability and energy density.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Chemical
Zihan Qian, Hanli Qin, Wenjie Yan, Guolang Zhou, Cheng Liu, Zhuoran Zhang, Jingzhou Yin, Qiaoqi Li, Tianshi Wang, Lili Zhang
Summary: Enhancing charge transfer efficiency and accelerating the redox cycle improve catalysts' ability to activate peroxymonosulfate (PMS). The cobalt regulated cerium-iron oxides (CFOCo) successfully achieved this by reducing particle size, increasing oxygen vacancies, and generating more reactive oxygen species (ROS). CFO-Co exhibited significantly boosted PMS activation and excellent catalytic performance in various conditions, as well as easy catalyst recovery. The introduction of cobalt reduced PMS adsorption energy on the catalyst and promoted ROS production. This work provides a new perspective on the design of PMS-activated catalysts.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Xiaochan Liu, Xibin Yi, Jing Zhang, Xinfu Zhao, Sijia Liu, Tingwei Wang, Sheng Cui
Summary: Constructing heterostructure in nanomaterials is a scientific and efficient method to optimize the electrochemical properties of supercapacitors. Carbon aerogels (CAs) with their three-dimensional porous structure can enhance electrical conductivity and ion diffusion, which is useful for fabricating electrodes. The moderate nanoheterostructures in aerogel nanomaterials have made great contributions to the optimization of application performance. Herein, a simple method for constructing the MnO2 nanoparticle/CA (MnO2/CA) heterostructure is proposed. The MnO2/CA heterostructure exhibits outstanding electrochemical capability in a three-electrode system, with a specific capacitance of 384 F/g, higher than 201 F/g of the CA, at a current density of 0.5 A/g. When MnO2/CA is used as a symmetric supercapacitor, it also exhibits a high energy density and power density, with the highest energy density of 33.78 Wh/kg. The prepared MnO2/CA shows improved performance for synergies in providing a high specific capacity and long cycle life.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Wei Zheng, Joseph Halim, ZhengMing Sun, Johanna Rosen, Michel W. Barsoum
Summary: This study tested an AASC with Ti3C2Tz MXene as the negative electrode and a mixture of manganese oxides as the positive electrode, using a saturated lithium chloride electrolyte. The device demonstrated high energy and power densities, slow self-discharge rates, excellent rate capability, and cycling stability, making it a promising option for environmentally friendly AASCs with commercial mass loadings.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Xiaohua Zhang, Xinyu Gan, Tengda Wang, Hengxiang Li, Wenjing Shi, Xinxin Zhao, Xiaoyan Yan, Yanzhen Liu, Baosheng Liu
Summary: The electrochemical performances of reduced graphene oxide (rGO)-wrapped P-Ni2MnO4-x (P-Ni2MnO4-x @ rGO) have been enhanced by phosphorization treatment, which introduces oxygen vacancies and phosphorus doping to improve intrinsic electron conductivity and create additional active sites. The direct contact between P-Ni2MnO4-x and rGO facilitates charge transfer, leading to significantly improved utilization efficiency and reaction activity. The P-Ni2MnO4-x @ rGO electrode exhibits a high specific capacitance of 1344.7 F g-1 at 1 A g-1 and good rate capability. Furthermore, the assembled asymmetric supercapacitor P-Ni2MnO4-x @ rGO//hollow carbon sphere demonstrates a high energy density of 87.5 W h kg-1 at a power density of 294.0 W kg-1, along with excellent cycling performance with 94.9% capacity retention at 5 A g-1 after 10000 cycles. These outstanding performances make P-Ni2MnO4-x @ rGO a competitive candidate for high-performance supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Chemistry, Physical
Shuyun Yao, Shiyu Wang, Ruochen Liu, Xia Liu, Zhenzhen Fu, Dewei Wang, Haigang Hao, Zhiyu Yang, Yi-Ming Yan
Summary: We report the engineering of delocalized d-electrons spin states of the Mn site in MnO2 through simple Ni doping (Ni-MnO2), which greatly enhances the Na+ storage performance. Ni-MnO2 exhibits a high capacity and excellent rate capability, outperforming MnO2. The theoretical simulations suggest that the delocalized d-electrons spin states of the Mn site lower the Na+ transfer energy barrier and improve electronic conductivity. The accelerated electron/ion transfer kinetics of Ni-MnO2 are further demonstrated using a Ni-MnO2-based asymmetric supercapacitor.
Article
Chemistry, Multidisciplinary
Yuming Shu, Jingyao Zeng, Jiangnan Huang, Guorong Hu, Ke Du, Zhongdong Peng, Yanbing B. Cao
Summary: The Sr-modified LMO cathodes, enriched with strontium at grain boundaries, show improved structural stability, reduced migration of Mn ions, and enhanced cycling performance. The incorporation of Sr ions presents a promising strategy for developing long-lasting cathodes.
Article
Computer Science, Artificial Intelligence
Penghai Zhao, Weilan Wang, Guowei Zhang, Yuqi Lu
Summary: This study focuses on the binarization problem in degraded historical Tibetan document images and proposes an improved approach. By rescaling the input and output of the attention U-Net and accelerating the construction of the training set, the issue of pseudo-touching is successfully addressed, leading to better performance across several metrics.
NEURAL COMPUTING & APPLICATIONS
(2023)
Review
Genetics & Heredity
Juan-Juan Xie, Guo-Wei Zhang, Hai-Yue Cui, Na Li, Xing-Xing Liu, Meng-Yao Hao, Shao-Wen Wang, Hong Lu
Summary: The penetrance of MYOC gene mutation in primary open-angle glaucoma (POAG) shows significant differences due to different mutation sites. Age and ethnic differences are important factors affecting the penetrance of MYOC mutation.
OPHTHALMIC GENETICS
(2022)
Article
Hematology
Yun Wang, Jianhua Mao, Li Li, Bing Xiao, Zheng Ruan, Yichen Liu, Guowei Zhang, Dawei Wang, Jian-Qing Mi, Chao Fang, Xiaodong Xi, Xiaofeng Shi, Jin Wang
Summary: Platelet-targeted FVIII gene therapy can efficiently recover the bleeding phenotype in patients with hemophilia A, while the ectopic expression of FVIII in platelets shows varying effects on thrombus formation under physiological and pathological conditions. Specific morphological features of thrombi may contribute to the efficacy and safety of platelet-targeted FVIII gene therapy for HA.
THROMBOSIS AND HAEMOSTASIS
(2022)
Article
Ophthalmology
Mu Zhang, Jiawei Luo, Xiaoqing Chen, Yanhua Chen, Pengfei Li, Guowei Zhang, Huaijin Guan, Peirong Lu
Summary: The regulatory mechanisms of age-related cataract (ARC) formation were explored and a miRNA-mRNA regulatory network related to the DNA repair process in a zebrafish cataract model was constructed. These findings have important implications for the treatment of ARC.
CURRENT EYE RESEARCH
(2022)
Article
Management
Guowei Zhang, Ning Jia, Ning Zhu, Yossiri Adulyasak, Shoufeng Ma
Summary: Assessing a humanitarian transportation network early after a disaster is crucial for reducing casualties. Drones are considered for the assessment operations due to their potential. However, a novel challenge arises in the drone arc routing problem where drones can travel off the road network. To address this challenge, a graph transformation technique and a robust team orienteering problem with uncertain assessment time are proposed. The problem is solved efficiently using path-based reformulation and Lagrangian decomposition, and an exact branch-and-price framework is applied.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2023)
Letter
Surgery
Guowei Zhang, Rui Liu, Wanxiang Wang, Fan Yang
ASIAN JOURNAL OF SURGERY
(2022)
Article
Integrative & Complementary Medicine
Hongkun Xue, Yu Wang, Hongwei Xiang, Qi Song, Guowei Zhang, Jianguo Wang, Shaoqin Ge
Summary: This paper aimed to predict the mechanisms of Huaji Jianpi Decoction (HJJPD) against nonalcoholic fatty liver disease (NAFLD) using network pharmacology combined with animal experiments. The study identified candidate compounds and corresponding genes from HJJPD that are associated with activity against NAFLD, and constructed network of them. Inflammatory response and lipid metabolism-related signaling pathways were found to be critical pathways mediating the therapeutic effect of HJJPD. Experimental validation showed that HJJPD can inhibit hepatic steatosis and decrease mRNA expression levels. The study suggests that HJJPD exerts its effect on NAFLD through multitargets, multicompounds, and multipathways, and the network pharmacology-based approach provides insights for understanding the interrelationship between complex diseases and interventions of HJJPD.
EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE
(2022)
Article
Materials Science, Multidisciplinary
Dongya Yang, Jiajun Li, Gengrui Zhao, Honggang Wang, Zhenyu Li, Shengsheng Chen, Gui Gao, Guowei Zhang, Hong Xu
Summary: This study investigated the effects of molybdenum disilicide and ferrophosphorus particles on the tribological properties of copper-tin bismuth bimetallic bearing materials. The addition of these particles was found to improve the mechanical and wear resistance properties of the alloys.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Huan Yu, Guowei Zhang, Weize Lv, Hong Xu, Changjun Xu
Summary: An Al-7Si-Cu-Mg-Mn/steel bimetal was prepared by compound casting, and the effect of a coupled traveling and rotating magnetic field on the interface microstructure and shear strength was investigated. The magnetic field resulted in changes in the interface layer thickness, element concentration gradient, and dissolution rate of intermetallic compounds, leading to an increase in shear strength.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Guowei Zhang, Zhaojie Wang, Changjun Xu, Hong Xu, Cong Wang
Summary: The age-hardening behavior of the Al-7Si-0.5Mg alloy was studied with different sizes and distributions of Si phase. The specimen with fine and homogeneous Si exhibited accelerated age-hardening kinetics and higher hardness compared to the specimen with coarse and clustered Si, attributed to the higher dislocation density caused by thermal contraction mismatch. The overlapping of the plastically-affected zone of adjacent Si in the specimen with large and clustered Si resulted in reduced volume fraction of the plastically-affected zone, lower dislocation density, and slower age-hardening kinetics. The relationship between Si radius and critical inter-particle spacing for minimizing interaction and maximizing dislocation density and age-hardening kinetics was established.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Multidisciplinary
Xiao Wang, Guowei Zhang, Yongqiang Li, Na Qu
Summary: This paper investigates the maintenance policy for a 2M1B assembly line system. By using an SMDP model and the HAMRL method, the learning process is accelerated and the maintenance strategy for the system is obtained. Empirical results show that the HAMRL algorithm has advantages in larger space and practical problems.
JOURNAL OF INDUSTRIAL AND MANAGEMENT OPTIMIZATION
(2023)
Article
Engineering, Marine
Xuemin Song, Weiqin Liu, Guowei Zhang
Summary: This paper presents a study on the structural response of a trapezoidal floating body in waves through model testing and numerical simulation. The results conclude that the numerical method is effective in predicting the structural response characteristics of a trapezoidal floating body.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Ophthalmology
Lihua Kang, Jiawei Luo, Pengfei Li, Guowei Zhang, Miao Wei, Min Ji, Huaijin Guan
Summary: This study discovered that miR-125a-3p regulates apoptosis in LECs by suppressing TMBIM4, offering a new therapeutic target for cataract.
INTERNATIONAL OPHTHALMOLOGY
(2023)
Proceedings Paper
Computer Science, Hardware & Architecture
Gilead Posluns, Yan Zhu, Guowei Zhang, Mark C. Jeffrey
Summary: Hive is a task-based execution model and multicore architecture that extracts abundant fine-grain parallelism from algorithms with priority updates, while retaining their strict priority schedules. By directly supporting updates in the interface, identifying the novel scheduler-carried dependence, and speculating on such dependences with task versioning, Hive enables safe speculative updates to the schedule and improves performance significantly.
PROCEEDINGS OF THE 2022 THE 49TH ANNUAL INTERNATIONAL SYMPOSIUM ON COMPUTER ARCHITECTURE (ISCA '22)
(2022)
Retraction
Cell Biology
Ruirui Cheng, Guowei Zhang, Yong Bai, Furui Zhang, Guojun Zhang
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)
