Article
Chemistry, Physical
Li-Feng Zhou, Xuan-Wen Gao, Tao Du, He Gong, Li-Ying Liu, Wen-Bin Luo
Summary: A novel phosphate ZnMn2(PO4)(2) coated by a thin carbon layer [ZnMn2(PO4)(2) @C] was synthesized and employed as cathode material for zinc ion batteries, showing excellent electrochemical performance with reversible specific capacity of 67 mA h g(-1) in aqueous system and 174 mA h g(-1) in nonaqueous system.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
You Jin Kim, So Yeon Ko, Suji Kim, Kyung Min Choi, Won-Hee Ryu
Summary: This study proposes a method to fabricate dual functional coating materials using metal-organic polyhedra (MOP) for stabilizing the surface of lithium-ion battery cathodes and facilitating ion diffusion. The results show that the MOPAC-coated Ni-rich layered cathode exhibits better cycle retention and enhanced kinetic properties compared to the pristine and MOP-coated cathodes.
Article
Chemistry, Physical
Meng-Siou Wu, Nhu T. H. Luu, Teng-Hao Chen, Hailong Lyu, Te-Wei Huang, Sheng Dai, Xiao-Guang Sun, Alexander S. Ivanov, Jui-Chin Lee, Ilja Popovs, Watchareeya Kaveevivitchai
Summary: Organic electrode materials offer advantages such as low toxicity and sustainability, but improvements in redox potential, capacity, cycling stability, and electronic conductivity are needed to compete with inorganic-based compounds. The molecular design of HATAQ with extended pi-conjugation shows promising results for achieving exceptionally high energy density, rate capability, and cycling stability in organic electrodes.
ADVANCED ENERGY MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Mihaela-Ramona Buga, Adnana Alina Spinu-Zaulet, Cosmin Giorgian Ungureanu, Raul-Augustin Mitran, Eugeniu Vasile, Mihaela Florea, Florentina Neatu
Summary: Porous silica-based materials show promise as an alternative to graphite anodes for Li-ion batteries, but face challenges such as low coulombic efficiency and irreversible capacity losses. The main strategy to address these challenges is the preparation of carbon-coated SiO2 composites, where the carbon thin layer effectively reduces interfacial impedance.
Article
Chemistry, Physical
Wenwen Deng, Weibo Shi, Peiyuan Li, Naiqi Hu, Shuchan Wang, Jiayao Wang, Liang Liu, Zhuanzhuan Shi, Jian Lin, Chunxian Guo
Summary: All-organic lithium-ion batteries (AOLBs) are sustainable, versatile, and potentially low-cost energy storage devices. However, their development is limited by the performance and stability of the Li-contained organic cathodes. This study introduces LiTCNQ as a new cathode material for AOLBs and demonstrates its air-stable nature and high performance.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Abdelwahed Chari, Karim El Ouardi, Marwa Tayoury, Mohamed Aqil, Brahim Orayech, Abdeslam El Bouari, Jones Alami, Mouad Dahbi
Summary: In this study, a Na3ZrCo(PO4)3 cathode material with high electrochemical performance was synthesized, providing guidance for enhancing the performance of sodium-ion batteries in the future.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Chengjie Yin, Jianhui Chen, Cheng-Ling Pan, Yusong Pan, Jinsong Hu
Summary: By using a carbon coating strategy, the performance of manganese oxide cathode in aqueous zinc-ion batteries has been successfully improved, achieving a higher specific capacity and satisfactory cyclic stability.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Chunmao Huang, Shenghong Liu, Yang Wang, Jingjie Feng, Yanming Zhao
Summary: NaVMoO6 with brannerite-type structure was successfully synthesized using a sol-gel method, and utilized as a cathode material for lithium ion batteries for the first time. The material showed stable reversible specific capacity, indicating its potential as a cathode material for LIBs and enriching the possibilities of molybdenum-based materials for this application.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Review
Chemistry, Physical
Nursaule Batyrgali, Yerkezhan Yerkinbekova, Nurbol Tolganbek, Sandugash Kalybekkyzy, Zhumabay Bakenov, Almagul Mentbayeva
Summary: Significant research efforts have been dedicated to improving the electrochemical performance of Li/S batteries by advancing the separators. Various modifications on the separator surface have been proposed to enhance the reversible capacity, Coulombic efficiency, and cycling stability of Li/S batteries. Physical modifications, such as coating with carbon, polymer, inorganic, and metal-organic framework (MOF), have been comprehensively discussed, while relatively less work on chemical modification has been reported.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Electrochemistry
Jiajie Li, Quan Kuang, Gang Wang, Qiuchen Lu, Pan Jiang, Qinghua Fan, Youzhong Dong, Yanming Zhao
Summary: Expanding the selection of cathode materials is crucial for the development of aqueous zinc-ion batteries (AZIBs) to meet different application requirements. In this study, carbon-coated Na3Mn2(P2O7)(PO4) (NMPP@C) was synthesized using a liquid-phase method and freeze-drying process as an electrochemically active cathode material for AZIBs. After galvanostatic stimulation, the originally inactive NMPP@C cathode showed a peak capacity of 150 mAh g-1 and stabilized at 90 mAh g-1 with a discharge plateau at 1.45 V vs. Zn2+/Zn. The NMPP@C cathode underwent structural decomposition during the stimulation process, eventually generating alpha-MnO2 and Zn2P2O7·5H2O as electrochemical reaction agents.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Seong Ho Oh, Hye Ji Song, Yongho Lee, Jeonghan Kim, Taeeun Yim
Summary: Dually-functionalized Ni-rich NCM cathode materials are developed using aluminum phosphate for surface modification, which effectively suppress undesired reactions and improve cycling retention.
SOLID STATE IONICS
(2021)
Article
Chemistry, Physical
Xinhua Zhai, Panpan Zhang, Hui Huang, Jianfeng Zhou, Xiaobo Li, Buming Chen, Yapeng He, Zhongcheng Guo
Summary: Li-rich layered cathode prepared by co-precipitation and surface modified with amorphous Fe2O3 coating showed improved performance in terms of initial coulomb efficiency, cycle stability, and rate capacity. The Fe2O3 coating also stabilized the electrode/electrolyte interface and lowered the charge transfer resistance, contributing to higher structural integrity and cycling stability of the cathode material.
SOLID STATE IONICS
(2021)
Article
Chemistry, Physical
Xudong Liu, Zhibin Ye
Summary: This study introduces a group of organic nitroaromatic compounds as novel high-energy cathode materials with record-high reversible capacities, demonstrating potential for next-generation alkali-ion batteries.
ADVANCED ENERGY MATERIALS
(2021)
Article
Electrochemistry
Ilya Tertov, Oleg A. Drozhzhin, Anastasia M. Alekseeva, Maria A. Kirsanova, Andrey Mironov, Artem M. Abakumov, Evgeny Antipov
Summary: A novel polymorph of lithium vanadium pyrophosphate was successfully obtained from beta-NaVP2O7 using electrochemical Na+ for Li+ exchange, exhibiting excellent electrochemical performance and C-rate capability. The (de)intercalation process displays solid solution-like behavior with an intercalation capacity of 200 mAh g(-1) correspond to a two-electron process.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Anish Raj Kathribail, Arlavinda Rezqita, Daniel Lager, Raad Hamid, Yuri Surace, Maitane Berecibar, Joeri Van Mierlo, Annick Hubin, Marcus Jahn, Juergen Kahr
Summary: Coating conducting polymers onto active cathode materials has been shown to improve electrochemical performance and cycling stability, particularly in nickel-rich NMC622. The impact of heat treatment on the performance was studied systematically, with a heat treatment at 400 degrees C leading to enhanced reversibility and capacity retention, resulting in nearly 50% increase in discharge capacity for carbon coated NMC at 10C compared to uncoated samples. This study highlights the synergistic effects of a furfuryl polymer coating and subsequent calcination on improving the electrochemical performance of nickel-rich NMC622.
Article
Radiology, Nuclear Medicine & Medical Imaging
Mingli Chen, Zi Yang, Zabi Wardak, Strahinja Stojadinovic, Xuejun Gu, Weiguo Lu
Summary: The proposed kernel decomposition model provides accurate and real-time dose calculations for spot-based radiotherapies like GK and GP, without the need for pre-calculation or large data storage. It allows for efficient global fine search for optimal spots during treatment planning, demonstrating high passing rates in comparison to MC and TPS calculations for clinical plans.
Article
Oncology
Jihong Liu, Rutie Yin, Lingying Wu, Jianqing Zhu, Ge Lou, Xiaohua Wu, Qi Zhou, Yunong Gao, Beihua Kong, Xin Lu, Jing Wang, Youguo Chen, Ying Cheng, Yueling Wang, Weiguo Lu, Wei Li, Xin Ma, Kate Hsu
Summary: The results of the China SOLO2 cohort study support the use of maintenance olaparib at a dose of 300 mg twice daily for Chinese patients with platinum-sensitive relapsed ovarian cancer and a BRCA mutation.
ASIA-PACIFIC JOURNAL OF CLINICAL ONCOLOGY
(2022)
Article
Cell Biology
Yixuan Cen, Yifeng Fang, Yan Ren, Shiyuan Hong, Weiguo Lu, Junfen Xu
Summary: This study explored the characteristics of extrachromosomal circular DNAs (eccDNAs) in high grade serous ovarian cancer (HGSOC) and identified DNMT1(circle10302690-10302961) as the most significantly down-regulated eccDNA in metastatic tumors of HGSOC. The lower expression of DNMT1(circle10302690-10302961) was associated with worse prognosis of HGSOC.
CELL DEATH & DISEASE
(2022)
Article
Engineering, Biomedical
Changxi Liu, Jia Liu, Chengliang Yang, Yujin Tang, Zhengjie Lin, Long Li, Hai Liang, Weijie Lu, Liqiang Wang
Summary: This study proposes a computer vision-based method to detect and correct the deviation of printed helix in bioprinting process, significantly improving the accuracy and efficiency of the printing.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2022)
Article
Chemistry, Physical
Anran Pan, Zhicheng Wang, Fengrui Zhang, Lei Wang, Jingjing Xu, Jieyun Zheng, Jianchen Hu, Chenglong Zhao, Xiaodong Wu
Summary: The researchers developed a wide-temperature non-flammable concentrated electrolyte (LHCE) for high-voltage Li-metal batteries (LMBs), which effectively inhibits Li dendrite growth and side reactions, leading to improved battery performance and cycling lifespan.
Article
Engineering, Mechanical
Weiping Lu, Wen Cui, Xiaogang Zhang, Yali Zhang, Shu Yang, Jian Pu, Junyan Li, Zhongmin Jin
Summary: The friction and wear behaviors between cartilage replacement materials and articular cartilage are crucial for the function and performance of the replacements. This study investigated the difference between cross-shear motion and reciprocal linear motion on the frictional and wear behaviors of cartilage, as well as the effect of bearing surface roughness. The results showed that there was no significant difference between the two motion types. The water contact angle of the bearing surface affected the friction and wear behaviors for low roughness implants, while the surface roughness of the material affected the behaviors for high roughness implants. PEEK was found to be a suitable material for osteochondral implants.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2023)
Article
Chemistry, Physical
Daiqian Chen, Chenji Hu, Qi Chen, Guoyong Xue, Lingfei Tang, Qingyu Dong, Bowen Chen, Fengrui Zhang, Mingwen Gao, Jingjing Xu, Yanbin Shen, Liwei Chen
Summary: This research demonstrates a novel scalable solvent-free process for fabricating high ceramic content composite solid-state electrolyte (HCCSE) films. The HCCSE films have high ceramic content, good ionic conductivity, and mechanical properties, making them suitable for stable cycling in all-solid-state Li metal batteries at room temperature.
Article
Environmental Sciences
Yuxi Li, Bin Zhou, Shaoxiang Shen, Wei Lu, Chuanjun Tang, Shidong Li, Yan Su, Shun Dai, Guangyou Fang
Summary: This study presents the results of the Lunar Regolith Penetrating Radar (LRPR) equipped on China's Chang'E-5 probe, revealing the lunar regolith structure and electromagnetic properties of the landing site.
Article
Chemistry, Multidisciplinary
Feng Guo, Xi Chen, Yuhan Hou, Wenshuo Wei, Zhicheng Wang, Hao Yu, Jingjing Xu
Summary: Li||NMC811 battery, with lithium-metal as anode and LiNi0.8Co0.1Mn0.1O2 as cathode, is a potential high-energy-density battery. However, its cycling performance needs improvement, and the electrolyte plays a key role in this improvement.
Review
Polymer Science
Yu Peng, Zheshan Wang, Yunfei Shao, Jingjing Xu, Xiaodong Wang, Jianchen Hu, Ke-Qin Zhang
Summary: Research on wearable triboelectric generators is rapidly increasing, and there is a growing need for pioneering research into practical applications in both scientific and industry fields. In addition to flexibility and friction generation, other factors such as softness, breathability, washability, and wear resistance have also received significant attention in the research community. This paper reviews the use of wearable triboelectric generators in human clothing for energy conversion, with a focus on fabric structure analysis and integration methods with common fibers/yarns/textiles. The woven method shows fewer restrictions on yarn flexibility and thickness compared to the knitting method. Remaining challenges and future perspectives are also discussed to guide the development of fully functional smart clothing in the near future.
Article
Energy & Fuels
Yang Liu, Lei Wang, Lingwang Liu, Jiangyan Xue, Haiyang Zhang, Jingjing Xu, Xiaodong Wu
Summary: Lithium metal batteries (LMBs) have high energy density but face security issues like leakage and flammability. Polymeric ionic liquid-based solid polymer electrolytes (SPE) offer safety advantages but their low ambient conductivity limits their use in solid-state LMBs. This study develops a new SPE with high ionic conductivity and nonflammability, which shows good performance in an all-solid-state LMB.
Article
Chemistry, Multidisciplinary
Zhicheng Wang, Ran Han, Haiyang Zhang, Dan Huang, Fengrui Zhang, Daosong Fu, Yang Liu, Yumeng Wei, Haiqi Song, Yanbin Shen, Jingjing Xu, Jieyun Zheng, Xiaodong Wu, Hong Li
Summary: A nonflammable electrolyte is developed for high-energy-density storage battery, which consists of 1 M lithium difluoro(oxalato)borate (LiDFOB) in triethyl phosphate (TEP) and N-methyl-N-propyl-pyrrolidinium bis(trifluoromethylsulfonyl)imide [Pyr(13)][TFSI] ionic liquid (IL) solvents. The unique solvation structure of the electrolyte induces stable anion-derived electrolyte/electrode interphases, inhibiting Li dendrite growth and side reactions between TEP and electrodes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ran Han, Zhicheng Wang, Dan Huang, Fengrui Zhang, Anran Pan, Haiqi Song, Yumeng Wei, Yang Liu, Lei Wang, Yajie Li, Jingjing Xu, Jianchen Hu, Xiaodong Wu
Summary: This study designs a 2.4 m solvent to solve the problem of Li+ transport at low temperature and improve the interface stability between electrolyte and Li anode or Ni-rich cathode. The electrolyte exhibits excellent Li+ transport dynamics due to the advantages of lower freezing point, lower viscosity, and higher dielectric constant of the solvent. By utilizing the unique Li+ solvation structure, more DFOB- anions and FEC solvents are decomposed to establish a stable solid electrolyte interface between electrolyte/electrode. Therefore, the LiNi0.9Co0.05Mn0.05O2 (NCM90)/Li battery with 2.4m-DEF shows excellent rate capability and stable cycling performance, with approximately 93.7% capacity retention after 200 cycles at 20°C and room temperature. Moreover, the NCM90/Li battery with 2.4m-DEF exhibits surprising ultra-low-temperature performance, with 173 mA h g(-1) at -40°C and 152 mA h g(-1) at -60°C, respectively.
Article
Chemistry, Multidisciplinary
Dan Huang, Zhicheng Wang, Ran Han, Shoulei Hu, Jiangyan Xue, Yumeng Wei, Haiqi Song, Yang Liu, Jingjing Xu, Jun Ge, Xiaodong Wu
Summary: A solvent molecule structure regulation strategy is proposed to weaken the binding between lithium ions and the solvent, accelerate the desolvation process, and prevent the co-intercalation of lithium-ion ether complexes into the graphite anode. This strategy also suppresses the dissolution of lithium polysulfides and promotes the formation of a stable solid electrolyte interface, leading to long-cycle-life lithium-sulfur batteries.
Article
Optics
Guo Jia-Xiang, Xie Run-Zhang, Wang Peng, Zhang Tao, Zhang Kun, Wang Hai-Lu, He Ting, Li Qing, Wang Fang, Chen Xiao-Shuang, Lu Wei, Hu Wei-Da
Summary: The infrared photodetector with its unique ability to obtain IR radiation from the target plays a crucial role in various fields including national defense, communications, remote sensing, and aerospace. Traditional infrared photodetectors have been slow in meeting future demands, but the development of multidimensional infrared photodetectors provides new routes to enhance device performance.
JOURNAL OF INFRARED AND MILLIMETER WAVES
(2022)
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)