Article
Biochemistry & Molecular Biology
Zejun Ding, Xuan Yang, Yanjun Tang
Summary: A reduced graphene oxide (RGO)/cellulose nanocrystal/cellulose nanofiber (RCC) composite membrane was prepared using a one-pot method, which exhibited improved mechanical properties and hydrophilicity compared to pure RGO membranes. The RCC composite membrane showed a specific capacitance as high as 171.3 F cm(-3) due to the synergistic effect of nanocellulose and RGO sheets. A nanocellulose-based symmetric flexible all-solid-state supercapacitor (FASC) constructed using this composite membrane demonstrated a high volumetric specific capacitance of 164.3 F cm(-3) and a satisfactory energy density of 3.7 mW h cm(-3), surpassing many other reported flexible supercapacitors. This work could pave the way for the design of next-generation nanocellulose-based sustainable and flexible energy storage devices.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Qiyuan Wang, Yaoyin Li, Jianyuan Zhao, Chi Zhang, Xuan Luo, Jian Shao, Mao Zhong, Ziheng Ye, Pengdong Feng, Xiangli Liu, Kang Li, Weiwei Zhao
Summary: This study presents a rational design of nickel-deposited fiber fabric current collector for flexible supercapacitors, achieving excellent conductivity and mechanical stability. Transition metal oxides/hydroxides electrodes fabricated on the current collector showed high specific capacitance and energy density. The devices exhibited high capacitance retention even after 1000 cycles of bending and folding, indicating that metal oxide compound electrodes based on a Ni-fabric current collector offer a universal strategy for high-performance and ultra-flexible supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Energy & Fuels
Keliang Wang, Bocong Zheng, Madeline Mackinder, Nina Baule, Elias Garratt, Hong Jin, Thomas Schuelke, Qi Hua Fan
Summary: MXene has shown potential as electrode materials for energy storage devices. This study demonstrates the efficient deposition of a Ti3C2Tx/rGO composite on flexible substrates using electrophoresis, which is subsequently used in all-solid-state supercapacitors with high specific capacitance, low resistance, and excellent cycling stability.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Energy & Fuels
Sourav Acharya, Shrabani De, Brijesh K. Mishra, Ganesh Chandra Nayak
Summary: The use of Cd adsorbed cellulose as an electrode in portable flexible supercapacitors can address the need for efficient energy storage systems and the problem of toxic waste disposal. By doping Cd, the electrochemical performance of the electrode is enhanced, leading to high specific capacitance and good cycling stability.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Shuai Zhang, Ying Huang, Jiaming Wang, Song Zhang, Xiaopeng Han, Xu Sun
Summary: With the development of electronic technology, there is an increasing demand for flexible power supplies in portable and wearable electronics. Researchers have developed MXene and Co-TCPP nanosheet composites (CoMX) with excellent electrochemical properties through electrostatic self-assembly. The CoMX film electrodes exhibit high specific capacitance and excellent cycling stability, making them promising for flexible energy storage devices.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Ceramics
Yan Ma, Caixia Yang, Enxiang Liang, Guo-Xiang Wang, Ningbo Zhou, Yixue Xu, Wei Wang
Summary: In this paper, a super tensile hydrogel was prepared using a specific material, which can be used in flexible all-solid-state supercapacitors. The hydrogel has high specific capacitance and energy density, and it can maintain good electrochemical characteristics under different strains.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Qifan Liu, Jianhui Qiu, Chao Yang, Limin Zang, Guohong Zhang, Eiichi Sakai, Hong Wu, Shaoyun Guo
Summary: The flexible supercapacitor is a promising energy storage device with high energy density, stable energy supply, interchangeable electrodes, and robust flexibility, demonstrating excellent electrochemical and mechanical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Dan Zhou, Fengyi Wang, Jiaqi Yang, Li-zhen Fan
Summary: The flexible solid-state self-charging supercapacitor proposed in this study offers high flexibility, strong electrochemical performance, and self-charging capability. It can harvest and store energy synchronously through piezoelectric effect, and be self-charged to around 120 mV by simple impacting (repeated bending for 7 minutes at a frequency of 1.0 Hz). With acceptable self-charging capability and unique design, this electrochemical device shows promising application potential for sustainable and portable wearable electronics.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Sunil P. Lonkar, Zainab Karam, Abdulrahman Alshaya, Myriam Ghodhbane, Juveiriah M. Ashraf, Vincenzo Giannini, Chiara Busa
Summary: Flexible supercapacitors have attracted attention as power sources for portable and wearable electronics. This study integrates carbon nanotube (CNT) buckypaper with 2D materials including graphene, graphene oxide, and transition metal sulphides, especially tin sulphide. The hybrid CNT films, prepared using a scalable casting method, are used as electrodes for flexible-solid-state supercapacitors. The symmetric FSSS devices with CNT-SnS2 electrodes demonstrate high capacitance, high cyclic stability, and extended voltage window.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Shuai Zhang, Ying Huang, Yifeng Ruan, Jiaming Wang, Xiaopeng Han, Xu Sun
Summary: To meet the demands of future high-tech systems, such as smart wearables, internet of things, and smart cities, lightweight, flexible, patterned, and environmentally friendly electronic devices need to be developed. MXene and citrus-based carbon nanosheet composites (MX/CCNS) are prepared via electrostatic self-assembly, showing excellent energy storage properties and cyclic stability. MX/CCNS can be easily fabricated into flexible self-supporting electrodes and ink for screen printing and large-scale continuous preparation of patterned electrodes. They exhibit high specific capacitance and cycling stability, making them ideal for scalable and sustainable production of next-generation wearable intelligent electronics.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Iqra Rabani, Ye-Jee Park, Je-Won Lee, Muhammad Shoaib Tahir, Ajeet Kumar, Young-Soo Seo
Summary: Cellulose nanofibers and boron nitride nanotubes are lightweight, eco-friendly, and flexible materials that exhibit diverse properties. In this study, a ternary nanostructure consisting of zinc oxide nanoparticles, cellulose nanofibers, and boron nitride nanotubes was synthesized, leading to improved supercapacitor and piezoelectric performance. The flexible solid-state symmetric supercapacitor fabricated from this ternary nanostructure displayed high specific capacitance, cycling stability, and energy density. Additionally, the piezoelectric effect of the nanostructure was examined by applying force to a flexible paper made from the material. This research opens up possibilities for the development of next-generation flexible energy storage devices.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Xiuhang Chen, Fenghua Su, Qiang Zhou, Jianfang Sun
Summary: In this study, a flexible asymmetric supercapacitor was assembled using PPy@Ti3C2Tx composite material as the positive electrode and Ti3C2Tx as the negative electrode without any binder. The composite electrode exhibited excellent conductivity and porous structure, facilitating charge transfer and ions diffusion, resulting in improved utilization of active materials. The all-solid-state asymmetric supercapacitor showed high energy density, large operating voltage, and outstanding cycling stability, providing a promising approach for flexible electronics.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Zunbin Duan, Danni Liu, Zhaoer Ye, Caixia Sun, Zikun Wang, Kezhen Chen, Yang Li, Hao Huang, Xiaoliang Zeng, Jiahong Wang, Rong Sun, Xue-Feng Yu
Summary: In this study, researchers embedded carbon nanoparticles into the interlayer of two-dimensional black phosphorus microplates, resulting in a BP/carbon nanoframe on the substrate that promotes efficient charge transport. The resulting supercapacitor showed higher capacity and good stability, demonstrating its exceptional performance and potential for various applications.
Article
Energy & Fuels
Mandeep Singh, Ashish Gupta, Shashank Sundriyal, Prashant Dubey, Karishma Jain, S. R. Dhakate
Summary: The performance of ultra-flexible activated carbon nanofiber mats (ACNF) as an electrode for all-solid-state supercapacitor application is reported. ACNF exhibits higher specific capacitance and flexibility, making it a potential high-performance electrode material.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Environmental
Qunhao Wang, Tian Xia, Wanlin Wu, Jiangqi Zhao, Xiaolin Xue, Chenghong Ao, Jian Zhang, Xueyong Deng, Ximu Zhang, Wei Zhang, Canhui Lu
Summary: This study demonstrates a facile and scalable strategy for the fabrication of high-performance electrodes for wearable electronic devices using abundant polymeric wastes as raw materials. The flexible energy storage devices showed excellent physical and electrochemical performances, making them suitable for powering electronic devices in wearable applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Cong Xie, Yang Liu, Wanxia Wei, Yinhua Zhou
Summary: This study reports a strategy to improve the upscaling efficiency of flexible organic solar cells by switching electrode design to avoid the negative effects of the high surface roughness of silver nanowire electrodes. The mechanical robustness of the nanowires is enhanced by introducing a cross-linked poly(sodium 4-styrenesulfonate) layer, and a transparent film is fabricated as the top electrode using water transfer printing.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yunhao Cai, Cong Xie, Qian Li, Chunhui Liu, Jiaxin Gao, Min Hun Jee, Jiawei Qiao, Yun Li, Jiali Song, Xiaotao Hao, Han Young Woo, Zheng Tang, Yinhua Zhou, Chunfeng Zhang, Hui Huang, Yanming Sun
Summary: Although all-polymer solar cells (all-PSCs) have great commercial potential, their power conversion efficiencies (PCEs) lag behind small molecule acceptor-based counterparts. Achieving optimized morphology and high molecular ordering in all-polymer blends is challenging due to competition between the crystallinity of the polymer donor and acceptor during film formation. In this study, a ternary strategy is employed to modulate the morphology and molecular crystallinity of an all-polymer blend, resulting in improved PCEs and performance.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wanpeng Yang, Haixuan Yu, Letian Dai, Zhiguo Zhang, Anjie Gu, Huaxia Ban, Qiang Sun, Shuangyin Chen, Yan Shen, Mingkui Wang
Summary: This study proposes an effective method using phosphorus pentachloride as an additive to fabricate high-quality and stable CsPbI3 films. The method has great potential in photovoltaic applications.
Article
Chemistry, Multidisciplinary
Guanhua Ren, Zhiguo Zhang, Yanyu Deng, Zhuowei Li, Chunyu Liu, Mingkui Wang, Wenbin Guo
Summary: Surface passivation with organic iodides is crucial for high-performance perovskite solar cells (PSCs), but it often leads to stability degradation due to migration of iodine interstitial (I-i) defects. We found that untreated surface treatment can induce I-i formation and subsequent migration. Cation selection for organic iodides is important, as a strong cation-perovskite surface interaction can suppress I-i migration by increasing the migration energy barrier. Phenylpropylammonium iodide-treated PSCs achieve enhanced efficiency and stability, with a champion efficiency of 24.20% and retaining about 92% of their initial efficiency after 240 hours of continuous illumination.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Yinyan Xu, Yingke Ren, Sheng Cheng, Lun Zhang, Pujun Niu, Mei Lyu, Hongbo Lu, Mingkui Wang, Jun Zhu
Summary: Lead halide perovskite films with excellent optoelectronic properties are prepared using a residual strain regulation strategy. By adding ligand-capped CsPbI3 quantum dot solution as an antisolvent, lattice-matching CsPbI3 QDs act as heterogeneous nucleation centers and ligands regulate the crystallization kinetics, reducing residual strain. This strategy improves the film's performance by increasing grain size, decreasing defects, reducing nonradiative recombination, and improving charge transfer efficiency.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Ting Wang, Qu Yang, Yanli Chen, Qiong Peng, Xiaosi Qi, Hui Shen, Xuncheng Liu, Shaohui Li, Haixuan Yu, Yan Shen, Mingkui Wang, Xiu Gong
Summary: Inorganic CsPbI3 perovskite solar cells (PSCs) with high photoelectric properties face the challenge of phase instability against moisture. A curing-anti-solvent strategy is developed using an inorganic polymer (PHPS) to form a stable black-phase CsPbI3 perovskite film. The PHPS reduces moisture erosion and controls crystal growth, while a polycondensation adduct forms a shield layer to prevent phase transition. These PSCs achieve an efficiency of 19.17% and retain 90% of the initial efficiency after 1000 hours under 30% RH.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Kai Feng, Linya Chen, Jingyu Cheng, Wanxia Wei, Yang Liu, Cong Xie, Xin Lu, Honggang Gu, Sixing Xiong, Yinhua Zhou
Summary: Layer-by-layer (LbL) coating is a widely used method for nonfullerene active layer films in organic solar cells. However, the vertical compositional distribution of the LbL-coated active layer, particularly at the buried bottom surface, is unclear. This study shows that the LbL active layer is a vertical donor-acceptor mixture without a pure polymer donor layer at the bottom surface. The study also reveals that inserting thin polymer layers at the bottom surface significantly deteriorates the device's performance.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Junwei Xiang, Chuanzhou Han, Jianhang Qi, Yanjie Cheng, Kai Chen, Yongming Ma, Jiayu Xie, Yue Hu, Anyi Mei, Yinhua Zhou, Hongwei Han
Summary: Printable mesoscopic perovskite solar cells (p-MPSCs) have gained attention due to their low cost and potential for mass production. However, their low open-circuit voltage (V-OC) limits their power conversion efficiency (PCE). In this study, a polymeric Lewis base polysuccinimide (PSI) was added to the perovskite precursor solution as an additive to improve perovskite crystallization, passivate defects, and enhance PCE. The fabricated p-MPSCs achieved a champion device with a PCE of 18.84% and an increased V-OC from 973 to 1030 mV, offering a new strategy for efficient p-MPSC fabrication.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Computer Science, Interdisciplinary Applications
Shengzhi Huang, Yong Huang, Yi Bu, Zhuoran Luo, Wei Lu
Summary: This study analyzes the publication sequence of over 20,000 scientists in the computer science field using Microsoft Academic Graph. It confirms the relationship between productivity and impact with the evolution of scientists' research interests. The study proposes a Q seashore walk model based on the interactive mechanism hypothesis to explore how these factors affect topic selection behavior, and finds evidence for the interactive mechanism.
JOURNAL OF INFORMETRICS
(2023)
Article
Computer Science, Interdisciplinary Applications
Tongyang Zhang, Ran Sun, Julia Fensel, Andrew Yu, Yi Bu, Jian Xu
Summary: For accurate scientific evaluation and advancement, understanding the development state of a disciplinary domain is crucial. Existing comprehension methods focus on quantitatively analyzing subject trends without considering the underlying complex attributes of supporting words. This study deepens the examination of domain development by using Word2vec to identify semantic neighbors of domain-specific words and classifying their roles as tree structures. The study provides insights into the organizational composition and maturing status, as well as the historical development changes in the domain. The empirical study using attention in psychology as a case reveals different word positions and development trends, indicating areas of thriving, becoming obsolete, precipitating, and irregularly developing within the domain.
JOURNAL OF INFORMETRICS
(2023)
Article
Computer Science, Interdisciplinary Applications
Chao Yu, Chuhan Wang, Tongyang Zhang, Yi Bu, Jian Xu
Summary: This study proposes using entitymetrics analysis for measuring diversity at the scholar level. Compared to disciplines or topics, entities have advantages in portraying subject categories, detecting content disparities, and characterizing research content distribution patterns, providing a more granular reflection of scholars' research diversity.
Article
Computer Science, Information Systems
Xin Liu, Yi Bu, Ming Li, Jiang Li
Summary: Collaboration across disciplines is critical for solving complex problems and making innovative contributions. This study examines the relationship between multidisciplinary collaboration in publications and the disruption of science. The findings show that articles with monodisciplinary collaboration are more disruptive than those with multidisciplinary collaboration. The mechanism behind this phenomenon is explored through analysis of the sampled publications' references.
JOURNAL OF THE ASSOCIATION FOR INFORMATION SCIENCE AND TECHNOLOGY
(2023)
Article
Computer Science, Interdisciplinary Applications
Junjie Huang, Win-bin Huang, Yi Bu, Qi Cao, Huawei Shen, Xueqi Cheng
Summary: This paper conducts an empirical study using over 3000 papers and 13,000 reviews from the prestigious computer science conference ICLR2022 to determine the factors contributing to a successful rebuttal. The study finds that social interactions between authors and reviewers play a crucial role in paper acceptance, and a successful rebuttal often leads to an increased review score.
JOURNAL OF INFORMETRICS
(2023)
Article
Materials Science, Multidisciplinary
Tianyi Liu, Hui Zheng, Xinyu Yu, Shengwei Shi, Yinhua Zhou, Zhong'an Li
Summary: In recent years, the innovative design of small-molecule non-fullerene acceptors (NFAs), particularly fused ring electron acceptors (FREAs), has significantly advanced the development of organic solar cells (OSCs), achieving power conversion efficiencies (PCEs) higher than 19%. However, compared to inorganic and perovskite solar cells, OSCs still exhibit a certain efficiency gap, mainly due to the large energy loss (E-loss). Recently, breaking the symmetry of FREAs has emerged as an effective molecular design strategy to greatly reduce the E-loss to a remarkably low value of 0.44 eV. In this perspective, we summarize the recent progress in asymmetric FREAs and explore the relationship between asymmetric molecular structure, E-loss, and device performance, providing molecular insights for future development of high-performance asymmetric NFAs.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Xinyun Dong, Xianmin Zhou, Yang Liu, Sixing Xiong, Jingyu Cheng, Youyu Jiang, Yinhua Zhou
Summary: In this study, a solvent exchange method was used to prepare alcohol-processed PEDOT:PSS, which showed good wetting ability and high electronic conductivity. The work function of the obtained e-PEDOT:PSS was tuned by adding an alcohol-based fluorinated formulation. The 2-in-1 electrodes fabricated using e-PEDOT:PSS showed an efficiency of 14.02%.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)
