Article
Chemistry, Physical
Qingru Zhuang, Wenzheng Li, Zitong Zhu, Hao Yu, Wei Chen, Jing Yang, Min Fu
Summary: In this work, a novel nanostructure of SnO2@polypyrrole (PPy) is grown on carbon cloth (CC) using a facile solvothermal method and subsequent chemical oxidative polymerization process. The SnO2@PPy/CC composites exhibit significantly improved electrochemical performances compared to single components. Moreover, all solid state flexible supercapacitors (FSCs) constructed with SnO2@PPy/CC electrodes and polyvinyl alcohol-potassium hydroxide gel electrolyte demonstrate high energy density, superior stability, and mechanical flexibility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Electrochemistry
J. Vigneshwaran, Jemini Jose, Siby Thomas, Alessio Gagliardi, Mukundan Thelakkat, Sujin P. Jose
Summary: The energy storage performance of polypyrrole-based MXene nanocomposite electrode is studied, showing excellent specific capacitance and cycle performance. By fabricating quasi-solid-state supercapacitors, higher energy density and power density are achieved, with a wide operating potential window. This has significant implications for energy storage solutions.
ELECTROCHIMICA ACTA
(2022)
Article
Electrochemistry
Wenlong Luo, Yue Sun, Yongqin Han, Jianxu Ding, Tingxi Li, Chunping Hou, Yong Ma
Summary: MXene/polypyrrole (M-PPy) composite films were fabricated by vacuum-assisted suction filtration, and the optimized M-PPy3 exhibited high capacitance and excellent cycling performance. The flexible M-PPy3//MnO2 asymmetric supercapacitor showed high capacitance retention even after 6000 charge/discharge tests, demonstrating remarkable energy storage capacity. This study provides a better electrode structure for MXene and demonstrates its application in flexible wearable devices.
ELECTROCHIMICA ACTA
(2023)
Article
Nanoscience & Nanotechnology
Yongrui Yang, Dong Zhang, Yanghe Liu, Lening Shen, Tao Zhu, Xinjian Xu, Jie Zheng, Xiong Gong
Summary: This study introduces solid-state double-network hydrogel electrolytes with Na2MoO4 redox additives, which exhibit high electrochemical performance and excellent mechanical properties. Novel symmetric supercapacitors incorporated with these electrolytes demonstrate great potential applications with 80% capacitance retention and 70 mu Wh/cm(2) energy density.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Paper & Wood
Yang Zhan, Yang Hu, Yu Chen, Quanling Yang, Zhuqun Shi, Chuanxi Xiong
Summary: Nanocellulose has become one of the most attractive matrix materials for flexible supercapacitors, and electrode materials with high capacitance and mechanical flexibility were developed through the in-situ synthesis of polypyrrole. The resulting nanocellulose/carbon nanotube/polypyrrole hydrogels showed promising performance in the field of flexible solid-state supercapacitors.
Article
Chemistry, Multidisciplinary
Antonella Arena, Graziella Scandurra, Caterina Branca, Mariangela Ruggeri, Mauro Federico, Valentino Romano, Giovanna D'Angelo, Carmine Ciofi
Summary: Solid-state supercapacitors with high areal capacitance are developed on paper substrates using environmentally friendly and low-cost materials, as well as a simple coating technique. Polypyrrole powder doped with dodecylbenzene sulfonic acid is used as the electrode material, which is prepared as a stable water-based ink and directly coated on paper. The layers are then interconnected using a polymer gel as both ion conductor and separator. Additionally, the areal capacitance can be enhanced when combined with other nanostructured carbon materials.
Article
Chemistry, Analytical
Bruna M. Hryniewicz, Isabella C. Gil, Marcio Vidotti
Summary: This article reports the fabrication of a flexible solid-state supercapacitor based on a hybrid material of polypyrrole nanotubes and gold nanoparticles. The characterization and electrochemical performance testing of the materials revealed that the supercapacitor exhibited high specific capacitance, high stability, and good electrochemical performance.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Dongshan Wang, Jinmei Li, Xin Li, Qi Wang, Peng Liu
Summary: In this study, high-performance solid-state supercapacitors were designed by integrating flexible electrodes with redox-mediated gel electrolytes, which exhibited high specific capacitance, cycling stability, and energy density, making them promising for practical application.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Chunlin Liu, Xuechuan Wang, Hui Jie Zhang, Xiangyu You, Ouyang Yue
Summary: Flexible energy storage materials and sensors play a crucial role in human-machine interface technology. This study focuses on the development of gelatin-based PPy hydrogel electrodes through template degradation method, resulting in enhanced electrochemical performance. The H-Gel/AS-MWCNTs-PPy electrode exhibits improved capacitance when immersed in an ammonium sulfate solution, leading to the assembly of a flexible sensor and solid-state supercapacitor with high performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Xin Liu, Limin Zang, Chunliu Liang, Qifan Liu, Yan Deng, Chao Yang, Jianhui Qiu
Summary: The study found that the PPy@CFY electrodes doped with sodium lignosulfonate exhibited high specific capacitance, and the AFFSC capacitor based on these electrodes showed excellent cyclic stability and mechanical stability, with potential for practical applications.
Article
Materials Science, Multidisciplinary
Fen Zhu, Xiao She, Zhanhui Zhang, Xianghua Yu, Jiayou Ji, Liang Li, Shaoping Li
Summary: In this study, flexible free-standing films with remarkable flexibility and excellent electrochemical properties were successfully prepared. These films can be used for fabricating portable and wearable supercapacitors and exhibit stable electrochemical performance even after multiple bending cycles, making them suitable for manufacturing wearable devices, portable electronics, and healthcare monitoring applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Chemistry, Physical
Zijie Zhao, Qifan Liu, Limin Zang, Hui You, Jing Zhang, Xue Wang, Chao Yang
Summary: A symmetric wire-based shape-memory supercapacitor (SMSC) was fabricated by depositing polypyrrole (PPy) on NiTi shape-memory alloy wire as electrodes, demonstrating high flexibility, excellent shape-memory performance, and ultrahigh areal energy density. The SMSC displayed excellent capacitance stability after multiple deformation/recovery processes, showing infinite potential in flexible and wearable electronics applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Songjie Wang, Yongyin Liang, Wenchen Zhuo, Hang Lei, Muhammad Sufyan Javed, Botian Liu, Zilong Wang, Wenjie Mai
Summary: A high mass loading and freestanding CNT@PPy electrode was fabricated, demonstrating superior areal capacitance and improved mechanical properties, leading to enhanced performance for supercapacitors.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Physical
Sudhakaran Moopri Singer Pandiyarajan, Ganesh Kumar Veerasubramani, Roshan Mangal Bhattarai, Gnanaselvan Gnanasekaran, Sang Jae Kim, Young Sun Mok
Summary: A hierarchical MoS2-CNT(PPy)s structure was proposed as an electrode material for a symmetric supercapacitor, exhibiting expanded interlayer spacing and core-shell structure. By adding Na2MoO4 to the PVA/H2SO4 electrolyte, the specific capacitance of the MoS2-CNTPPy SSC can be increased threefold compared to the PVA/H2SO4 electrolyte, with excellent capacity retention.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Polymer Science
Ruyi Chen, Jiang Zhong, Huifang Zhu, Chunmi Tang, Yongluo Qiao, Changqing Fu, Jinglan Wang, Liang Shen, Haifeng He, Fei Gao
Summary: In this study, TCC@PPyW composite material was prepared and the morphology of PPy nanowires was controlled by regulating the conditions. The electrodes exhibited excellent electrochemical performance with high specific capacitance and energy density.
POLYMER INTERNATIONAL
(2021)
Article
Construction & Building Technology
Miaomiao Zhang, Hongren Gong, Rui Xiao, Xi Jiang, Yuetan Ma, Baoshan Huang
Summary: This study evaluated the cost-effectiveness of different overlay strategies using life-cycle cost analysis and probabilistic pavement performance models based on survival analysis. The results showed that there was a significant difference in survival probabilities between thin and thick overlays, while the overlay material type or milling had no significant impact on pavement service life. Thin overlays were more cost-effective in terms of life-cycle cost when traffic was not considered, while thick overlays were more cost-effective for pavements in wet areas with high traffic volumes.
ROAD MATERIALS AND PAVEMENT DESIGN
(2023)
Article
Oncology
Jiannan Chen, Jianhua Hu, Lili Gu, Feng Ji, Fan Zhang, Miaomiao Zhang, Jun Li, Zhengliang Chen, Longwei Jiang, Yan Zhang, Ruifang Shi, Lihua Ma, Shaochang Jia, Ying Zhang, Qi Zhang, Junqing Liang, Shunyu Yao, Zhigang Hu, Zhigang Guo
Summary: This study demonstrates the efficacy of anti-MSLN CAR-T treatment for ovarian cancer through the screening and design of antibodies and CAR-T cells, and successful clinical trials have been conducted to preliminarily evaluate the safety and effectiveness.
CANCER IMMUNOLOGY IMMUNOTHERAPY
(2023)
Article
Engineering, Environmental
Miaomiao Zhang, Yibo Gao, Yanpeng Mao, Wenlong Wang, Jian Sun, Zhanlong Song, Jing Sun, Xiqiang Zhao
Summary: Efficient syngas production can be achieved through the use of lanthanum nickelate catalyst and deposited carbon under microwave irradiation, enhancing catalytic performance and process stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Zhuoxin Li, Lingyi Zhou, Yuyan Qin, Xin Sun, Qianzhe Li, Mengyu Yang, Beibei Yu, Fengyi Du, Miaomiao Zhang
Summary: In this study, a NIR responsive nano-immunostimulant was developed, which could induce immunogenic cell death of tumor cells through photothermal conversion and promote the maturation and antigen cross-presentation ability of dendritic cells. The multifunctional nano-immunostimulant provided a combined treatment strategy for tumor therapy, integrating photothermal therapy, chemo-dynamic therapy, and immune activation.
Article
Agronomy
Bing Wang, Xiang Zhou, Jun-Le Ren, Miao-Miao Zhang, Qing-Feng Wu, Shan Yuan, Wei Liu, Dong Lu
Summary: In this study, molasses was pretreated to meet the requirements of Clostridium tyrobutyricum fermentation. Through microbial adaptive laboratory evolution, C. tyrobutyricum was able to convert fructose and glucose in the treated molasses into butyric acid.
Article
Genetics & Heredity
Long Chen, Miaomiao Zhang, Xue Li, Qimin Wu, Xingfan Xue, Tingting Zhang, Renfei Lu, Yiquan Zhang
Summary: The study elucidated the regulatory mechanism of AphA on the colony morphology variation of Vibrio parahaemolyticus biofilm, which was achieved through its regulation of EPS gene expression.
Article
Immunology
Juan He, Yu Li, Jian Chen, Qi Wu, Hongying Shan, Xiaocheng Wang, Miaomiao Zhang, Liping Nie, Qingwen Wang
Summary: Different subsets of CD8+ T cells are associated with clinical features and serological parameters in rheumatoid arthritis (RA). Naive CD8+ T cells are negatively correlated with disease activity, while CD8+ CD28-T cells and CD8+ CD27-T cells are positively correlated with disease activity. Activated CD8+ T cells and TCR gamma E+ CD8+ T cells may be involved in inflammation and lipid metabolism in RA.
INTERNATIONAL IMMUNOPHARMACOLOGY
(2023)
Article
Polymer Science
Jun Li, Miaomiao Zhang, Gaolei Ni, Hao-Yang Mi, BinBin Dong, Chuntai Liu, Changyu Shen
Summary: This research proposes a method to fabricate thermoplastic polyurethane foams with surface wrinkly structures using a dynamic supercritical carbon dioxide foaming technique. The surface wrinkled TPU film paired with a surface structured polydimethylsiloxane film in a TENG showed enhanced output voltage, current, and maximum transfer charge. The flexible TENG demonstrated outstanding stability in long-term continuous operation and can be used for charging, power supply, and self-powered sensing.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Meteorology & Atmospheric Sciences
Miaomiao Zhang, Wenxiong Jia, Guofeng Zhu, Fuhua Zhang, Hui Xiong, Le Yang, Yue Zhang, Xin Lan
Summary: This study analyzes the stable isotopes of hydrogen and oxygen in the Shiyang River Basin to investigate the moisture sources and transport processes in this arid area. The results show that westerly winds and monsoons play important roles in moisture flux, and there is spatial variation in the isotopic values of precipitation. Precipitation from maritime sources is depleted in oxygen-18 compared to continental sources, while enrichment of oxygen-18 is associated with continental sources affected by evapotranspiration and secondary evaporation.
THEORETICAL AND APPLIED CLIMATOLOGY
(2023)
Article
Engineering, Civil
Miaomiao Zhang, Hongren Gong, Yuetan Ma, Xi Jiang, Baoshan Huang
Summary: This study establishes a predictive model for post-treatment pavement roughness using data from the LTPP program. A nomogram is provided to help highway agencies obtain predicted post-treatment roughness values. Results show that post-treatment roughness is significantly higher in dry and non-freeze areas, and the effect of pavement structure is time-dependent.
TRANSPORTATION RESEARCH RECORD
(2023)
Article
Engineering, Environmental
Guodong Wu, Haishun Du, Kiandokht Pakravan, Wonhyeong Kim, Yoo Lim Cha, Shang-Tung Chiang, Majid Beidaghi, Xinyu Zhang, Sun Hee Kim, Xuejun Pan, Dong-Joo Kim
Summary: Flexible gas sensors were fabricated using disposable masks as substrates, exhibiting wide detection range, reliable reproducibility, long-term stability, and excellent response towards CO2 gas. The enhanced sensing performance of the composite sensor can be attributed to the heterojunctions between Ti3C2Tx and PANI, improved conductivity, and enlarged specific surface area. A wearable device was also developed for respiratory disease diagnosis.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Meng Zhang, Yaxin Duan, Ting Chen, Junjie Qi, Ting Xu, Haishun Du, Chuanling Si
Summary: Due to its natural biodegradability and bio-renewability, lignocellulose has attracted significant interest in the field of energy storage. It can be used as electrolytes, electrodes, separators, and binders in supercapacitors and batteries, thanks to its porous structure, good thermal and chemical stability, and tunable surface chemistry. The fabrication of lignocellulose-based materials for energy storage applications, including solid-state electrolytes, flexible electrodes, sustainable binders, and separators, is discussed in this review. The challenges and potential solutions for lignocellulose-based materials in the future are also presented.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Physics, Multidisciplinary
Tinggui Wang, Guilin Liu, Zhenyi Cai, Jinjun Geng, Min Fang, Haoning He, Ji-an Jiang, Ning Jiang, Xu Kong, Bin Li, Ye Li, Wentao Luo, Zhizheng Pan, Xuefeng Wu, Ji Yang, Jiming Yu, Xianzhong Zheng, Qingfeng Zhu, Yi-Fu Cai, Yuanyuan Chen, Zhiwei Chen, Zigao Dai, Lulu Fan, Yizhong Fan, Wenjuan Fang, Zhicheng He, Lei Hu, Maokai Hu, Zhiping Jin, Zhibo Jiang, Guoliang Li, Fan Li, Xuzhi Li, Runduo Liang, Zheyu Lin, Qingzhong Liu, Wenhao Liu, Zhengyan Liu, Wei Liu, Yao Liu, Zheng Lou, Han Qu, Zhenfeng Sheng, Jianchun Shi, Yiping Shu, Zhenbo Su, Tianrui Sun, Hongchi Wang, Huiyuan Wang, Jian Wang, Junxian Wang, Daming Wei, Junjie Wei, Yongquan Xue, Jingzhi Yan, Chao Yang, Ye Yuan, Yefei Yuan, Hongxin Zhang, Miaomiao Zhang, Haibin Zhao, Wen Zhao
Summary: The Wide Field Survey Telescope (WFST) is a dedicated photometric surveying facility being built jointly by University of Science and Technology of China (USTC) and the Purple Mountain Observatory (PMO). It is equipped with a 2.5-meter diameter primary mirror and a mosaic CCD camera, and it will scan the northern sky in four optical bands to detect transient phenomena and study the variability of Galactic and extragalactic objects.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2023)
Article
Agricultural Engineering
Yaxin Duan, Kun Liu, Junjie Qi, Chongyang Li, Hongxiang Xie, Haishun Du, Ting Xu, Chuanling Si
Summary: This article provides an overview of the characteristics, applications, and future research directions of engineered lignocellulose-based composites based on advanced structural materials.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Geochemistry & Geophysics
Heping Sun, Xiaoming Cui, Jianqiao Xu, Hao Ding, Miaomiao Zhang, Hang Li, Zhenyu Wang, Jiangcun Zhou, Xiaodong Chen
Summary: This paper briefly introduces the recent important research progress in background noise analysis, gravity tides, liquid core dynamics, hum signal, and normal mode detection based on China's gravity network and its cooperation with the international gravity network.
PURE AND APPLIED GEOPHYSICS
(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)
