Article
Polymer Science
Varvara Kabanova, Oxana Gribkova, Alexander Nekrasov
Summary: This study confirmed the unique morphology, spectroelectrochemical properties, and ammonia sensing performance of mixed PEDOT-polyelectrolyte films, showing the best sensing performance compared to individual films in the range of 5 to 25 ppm.
Article
Polymer Science
Christina J. Kousseff, Fani Eirini Taifakou, William G. Neal, Matteo Palma, Christian B. Nielsen
Summary: PEDOT-Crown, a novel polymer based on covalently modified EDOT, demonstrates superior adhesion, uniform surface morphology, and improved electrochemical properties compared to conventional PEDOT, making it a promising material for applications in biological sensing and electrochromic devices.
JOURNAL OF POLYMER SCIENCE
(2022)
Article
Polymer Science
Oxana Gribkova, Varvara Kabanova, Alexey Yagodin, Aleksey Averin, Maria Teplonogova, Alexander Martynov, Alexander Nekrasov
Summary: The electrochemical polymerization of 3,4-ethylenedioxythiophene (EDOT) was studied in the presence of an anionic copper and zinc octa(3',5'-dicarboxyphenoxy)phthalocyaninate. It was found that the presence of phthalocyaninate ions leads to a faster polymerization of EDOT compared to a low-molecular-weight electrolyte. UV-Vis-NIR and Raman spectroscopies showed that copper phthalocyaninate leads to a higher content in the resulting PEDOT composite films, and a 1:2 EDOT-to-carboxylate group ratio was determined to be optimal for a higher phthalocyaninate content in the film.
Article
Nanoscience & Nanotechnology
Tharindu A. Ranathunge, Christine Curiac, Kevin A. Green, Wojciech Kolodziejczyk, Glake Hill, Sarah Morgan, Jared H. Delcamp, Davita L. Watkins
Summary: This study reports on the electrochromic properties and application of electronically conducting polymers (ECPs) called PTRPZ-EDOT. The polymer was synthesized by incorporating 3,4-ethylenedioxythiophene (EDOT) and a heteroacene-based molecular scaffold called 6H-pyrrolo[3,2-b:4,5-b'] bis [1,4] benzothiazine (TRPZ). The resulting polymer showed remarkable spectroscopic and conductive properties that make it suitable for electrochromic device fabrication.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Multidisciplinary Sciences
Ankush Kumar, Kamila Janzakova, Yannick Coffinier, Sebastien Pecqueur, Fabien Alibart
Summary: Electropolymerization is a bottom-up materials engineering process that deposits conducting dendrites by utilizing electrical signals in a redox reaction. This process resembles synaptogenesis in the brain and has potential applications in neuromorphic engineering and bottom-up computing strategies. The study reveals the relationship between dendritic shape and growth process with particle concentration and random scattering by simulating the motion of charged particles under different electrical conditions.
SCIENTIFIC REPORTS
(2022)
Article
Electrochemistry
A. A. Nekrasov, O. D. Iakobson, O. L. Gribkova
Summary: In this study, in situ Raman spectroelectrochemical investigation was conducted on the electropolymerization of pyrrole in the presence of sulfonated polyelectrolytes. The results showed that the form of polyelectrolyte significantly influenced the chemical structure of the forming PPy-polyelectrolyte complexes, leading to different film properties.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Inorganic & Nuclear
Douaa AlMarzouq, Shereen A. Majeed, Ozlem Budak, Atif Koca
Summary: The electrochemical properties of manganese phthalocyanine with carbazole substituents and its nanocomposites were studied, showing comparable redox responses, which were influenced by the presence of graphene quantum dots in the composite.
INORGANICA CHIMICA ACTA
(2021)
Article
Electrochemistry
O. L. Gribkova, V. A. Kabanova, O. D. Iakobson, A. . A. . Nekrasov
Summary: The influence of different PE structures on the properties of PPy-PE complexes was investigated, showing that PPy films prepared with salt forms of rigid-chain PEs were more stable during cyclic voltammetry cycling in nonaqueous media compared to those with flexible-chain PEs.
ELECTROCHIMICA ACTA
(2021)
Article
Nanoscience & Nanotechnology
Minji Kim, Seung Yeob Lee, Jihyun Kim, Changwon Choi, Yves Lansac, Hyungju Ahn, Sohee Park, Yun Hee Jang, Seoung Ho Lee, Byoung Hoon Lee
Summary: Inspired by the classic hard-soft acid-base theory, this study introduces a new ionic liquid to treat PEDOT:PSS and achieves similar levels of ion-exchange and stretchability enhancement compared to the best existing ionic liquid.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Tzu-Yu Lin, Wen-Yin Lo, Tzu-Yu Kao, Chia-Hsuan Lin, Yen-Ku Wu, Shyh-Chyang Luo
Summary: Surface modification of PEDOT by controlling the distribution of surface charges can enhance the binding performance with proteins. By developing a positively charged functionalized EDOT monomer, EDOT-N+, and copolymerizing it with a negatively charged carboxylic acid-modified EDOT monomer, EDOT-COOH, the copolymer showed good antifouling property with an equal density of positive and negative functional groups.
Article
Polymer Science
Antonio Dominguez-Alfaro, I. Jennifer Gomez, Nuria Alegret, David Mecerreyes, Maurizio Prato
Summary: Carbon nanomaterials (CNMs) and conjugated polymers (CPs) are widely studied for applications in optics, catalysis, solar cells, and tissue engineering. CNMs have limitations in solubility, processibility, and degradability, while CPs like PEDOT can address these limitations through electrodeposition. This work demonstrates the use of electropolymerization to create 2D and 3D materials with various carbon nanomaterials and conductive polymers.
Article
Polymer Science
Xiao-Jing Lv, Li-Bin Xu, Liang Qian, Yuan-Yuan Yang, Zhi-Yi Xu, Jin Li, Cheng Zhang
Summary: An imidazolium-based ionic liquid modified triphenylamine derivative was synthesized and utilized to prepare a conjugated copolymer P(EDOT:TPAC(6)IL-BF4) with improved redox properties and UV-Vis absorption characteristics. The copolymer exhibited excellent electrochromic behavior even in the absence of supporting electrolyte, indicating its potential for high-performance electrochromic materials.
CHINESE JOURNAL OF POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Vicente Compan, Andreu Andrio, Jorge Escorihuela, Josua Velasco, Alejandro Porras-Vazquez, Jose Gamez-Perez
Summary: In this study, poly(vinyl alcohol)/graphene oxide/clay aerogels filled with montmorillonite or kaolinite were prepared. The addition of graphene oxide enhanced the mechanical properties and thermal stability of the composite materials. However, the conductivity drastically decreased after compressing the samples.
Article
Chemistry, Multidisciplinary
Cristina Manzano, Olga Caballero-Calero, Aida Serrano, Pedro M. Resende, Marisol Martin-Gonzalez
Summary: This study investigated the electropolymerization conditions of PEDOT films to improve their thermoelectric properties, finding the best performance at 1.3 V for 10 minutes. Additionally, 3D PEDOT nanonetworks synthesized inside 3D AAO exhibited lower thermoelectric properties.
Article
Physics, Multidisciplinary
Jiaji Yang, Xuejing Li, Yanhua Jia, Jiang Zhang, Qinglin Jiang
Summary: Research has been conducted on tuning the TE properties of PEDOT:PSS thin films using different methods, such as direct dipping in ionic liquid and post-treatment with concentrated sulfuric acid (H2SO4) and ionic liquid. The study found that treating the PEDOT:PSS film with H2SO4EMIM:TFSI led to an increase in Seebeck coefficient and electrical conductivity, resulting in a maximum power factor of 46.7 muW.m(-1).K^-2.
Article
Polymer Science
Weijing Zhao, Jie Cao, Fucheng Wang, Fajuan Tian, Wenqian Zheng, Yuqian Bao, Kaiyue Zhang, Zhilin Zhang, Jiawen Yu, Jingkun Xu, Ximei Liu, Baoyang Lu
Summary: This article introduces a method of preparing stretchable, adhesive, and conductive hydrogels by pre-crosslinking Ti3C2Tx nanosheets with polyacrylic acid followed by successive direct ink writing 3D printing. The hydrogel exhibits remarkable mechanical, electrical, and adhesive properties and can be integrated with different substrates with high resolution and stability.
Article
Chemistry, Multidisciplinary
Zequn Shen, Zhilin Zhang, Ningbin Zhang, Jinhao Li, Peiwei Zhou, Faqi Hu, Yu Rong, Baoyang Lu, Guoying Gu
Summary: This research presents a conducting polymer hydrogel strain sensor with high strain and low hysteresis, achieved through a unique microphase semiseparated network design and facile fabrication methods. The strain sensor demonstrates superior performances in terms of stretchability, linearity, cyclic stability, and robustness against mechanical twisting and pressing. The integration and application of the strain sensor with electronic skins show its potentials in various fields such as physiological signal measurement, gesture recognition, and industrial robot control.
ADVANCED MATERIALS
(2022)
Article
Engineering, Environmental
Qi Zhao, Juyang Liu, Zhixin Wu, Xinye Xu, Hude Ma, Jian Hou, Qiaoli Xu, Ruping Yang, Kaiyue Zhang, Mengmeng Zhang, Hanjun Yang, Wenshan Peng, Ximei Liu, Chengchen Zhang, Jingkun Xu, Baoyang Lu
Summary: The article introduces a mechanically robust nanocomposite hydrogel with excellent evaporation performance and demonstrates its potential applications in seawater desalination and wastewater purification.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Zhixin Wu, Qi Zhao, Xiaoyu Luo, Hude Ma, Wenqian Zheng, Jiawen Yu, Zhilin Zhang, Kaiyue Zhang, Kai Qu, Ruping Yang, Nannan Jian, Jian Hou, Ximei Liu, Jingkun Xu, Baoyang Lu
Summary: In this study, we have successfully overcome the challenge of fabricating low-cost yet high-performance visible-near-infrared flexible electrochromic devices (FECDs) by developing a fluorinated polythiophene derivative. The resulting polymer films exhibit intriguing overall electrochromic performances, and the devices fabricated by electropolymerization patterning of such polymers display robust mechanical stability.
CHEMISTRY OF MATERIALS
(2022)
Article
Engineering, Chemical
Qi Zhao, Zhixin Wu, Xinye Xu, Ruping Yang, Hude Ma, Qiaoli Xu, Kaiyue Zhang, Mengmeng Zhang, Jingkun Xu, Baoyang Lu
Summary: A dual network hydrogel of PEDOT:PSS and PAAm has been developed for interfacial solar steam generation, showing excellent evaporation performances and fascinating mechanical properties. This hydrogel demonstrates superior long-term stability and energy efficiency in real water purification applications, outperforming most previously reported photothermal materials.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Wenqian Zheng, Lina Wang, He Jiao, Zhixin Wu, Qi Zhao, Tao Lin, Hude Ma, Zhilin Zhang, Xinye Xu, Jie Cao, Jiang Zhong, Jingkun Xu, Baoyang Lu
Summary: A cost-effective multilayered hydrogel-based first-aid burn wound patch with rapid cooling and efficient anti-inflammation properties has been designed and fabricated.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Fajuan Tian, Jiawen Yu, Wen Wang, Dianbo Zhao, Jie Cao, Qi Zhao, Fucheng Wang, Hanjun Yang, Zhixin Wu, Jingkun Xu, Baoyang Lu
Summary: By using a simple two-step electropolymerization method, we have developed an adhesive and long-term stable conducting polymer neural interface that shows excellent adhesion to metallic electrodes. This interface can potentially serve as a powerful tool for advanced neuroscience research and cutting-edge clinical applications like brain-controlled intelligence.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Tao Zhou, Hyunwoo Yuk, Faqi Hu, Jingjing Wu, Fajuan Tian, Heejung Roh, Zequn Shen, Guoying Gu, Jingkun Xu, Baoyang Lu, Xuanhe Zhao
Summary: Researchers have developed a bi-continuous conducting polymer hydrogel with high electrical conductivity, stretchability, and toughness for 3D printing soft bioelectronic devices. This hydrogel shows promise for long-term in vivo electrophysiological monitoring and stimulation due to its unique combination of electrical conductivity and tissue-like mechanical properties. The hydrogel achieves high electrical conductivity, stretchability, and fracture toughness in physiological environments, making it suitable for advanced fabrication methods such as 3D printing. The researchers also demonstrate the use of this hydrogel for 3D printing monolithic all-hydrogel bioelectronic interfaces for long-term electrophysiological recording and stimulation in rat models.
Article
Materials Science, Multidisciplinary
Haiyang Qin, Mengmeng Sun, Peiyi Li, Junye Li, Zhilin Zhang, Shuqi Dai, Mingjun Huang, Baoyang Lu, Xiaofang Pan, Lidong Wu
Summary: Soft electronics is an important research field with diverse applications. Liquid metal has emerged as a promising material due to its high electrical conductivity and fluidity. In this study, a novel approach for direct dispersion of liquid metal nanoparticles in biocompatible hyaluronic acid is presented, creating multifunctional liquid metal/hyaluronic acid hydrogels. These hydrogels exhibit remarkable electromechanical properties and can be utilized as sensing material for facial expression monitoring systems in soft robotics. This study not only advances the understanding of liquid metal properties, but also expands its potential application scenarios in soft robotics and implantable sensors.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Hude Ma, Haiyang Qin, Xiao Xiao, Na Liu, Shaolei Wang, Junye Li, Sophia Shen, Shuqi Dai, Mengmeng Sun, Peiyi Li, Xiaofang Pan, Mingjun Huang, Baoyang Lu, Jun Chen, Lidong Wu
Summary: Highly stretchable and robust strain sensors are being developed as promising candidates for wearable electronics. The energy consumption and device aging are the main challenges in practical application. A liquid metal-embedded hydrogel is designed as a sensing material to overcome these challenges. The sensing material exhibits high conductivity, low elastic modulus, ultrahigh stretchability, and excellent robustness. The integration of this material with a monitoring system allows for hand gesture monitoring and sign-to-verbal translation, providing an ideal strategy for communication and expanding the application of wearable electronics.
Article
Chemistry, Multidisciplinary
Zhilin Zhang, Guangda Chen, Yu Xue, Qingfang Duan, Xiangyu Liang, Tao Lin, Zhixin Wu, Yun Tan, Qi Zhao, Wenqian Zheng, Lina Wang, Fucheng Wang, Xiaoyu Luo, Jingkun Xu, Ji Liu, Baoyang Lu
Summary: In this study, conducting polymer hydrogels with anisotropic structures and mechanics were successfully fabricated through a combined freeze-casting and salting-out process. The as-fabricated conducting polymer hydrogels exhibit high fatigue threshold (>300 J m(-2)), low Young's modulus (& AP;100 kPa), as well as long-term strain sensing robustness (over 10 000 cycles). Such superior performance enables their application as strain sensors to monitor the real-time movement of underwater robotics.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Jiawen Yu, Fajuan Tian, Wen Wang, Rongtai Wan, Jie Cao, Chen Chen, Dianbo Zhao, Jingcheng Liu, Jiang Zhong, Fucheng Wang, Qi Liu, Jingkun Xu, Baoyang Lu
Summary: Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)-based hydrogels have emerged as ideal interfacing materials for bioelectronics due to their intriguing electrical, mechanical, and biological properties. However, the development of high-performance PEDOT:PSS-based hydrogels that simultaneously achieve high conductivity, robust mechanical properties, and accessibility for advanced manufacturing technologies remains a critical challenge for further advancing such materials towards practical applications.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xinye Xu, Qi Zhao, Qi Liu, Junxiao Qiu, Shutong Yuan, Zhixin Wu, Ruping Yang, Jie Cao, Lina Wang, Jingkun Xu, Baoyang Lu
Summary: This study proposes a facile approach to fabricate a bilayered wood-PEDOT:PSS hydrogel interfacial evaporator with excellent light absorption and efficient photothermal conversion. The as-fabricated evaporator demonstrates a remarkably high evaporation rate and energy efficiency, and shows outstanding performance stability and ion removal capability in practical applications such as sewage purification and desalination.
Article
Nanoscience & Nanotechnology
Kang Wang, Zhixin Wu, Rongfang Wu, Jianfeng Zang, Baoyang Lu, Chao Du, Yan Yu
Summary: Flexible strain sensors were prepared on medical catheters by using certain materials as substrates, enabling direct detection of strain and contact force. The strain sensor had an adjusted gauge factor (GF) achieved by changing the resistance during preparation. By controlling the composite material seepage zone, a maximum achievable GF of 121 at a low strain of 1% was obtained, capable of detecting low forces with high resolution. Liquid glue encapsulation did not affect the conductive network of the sensor, and the sensor exhibited a response time of 50 ms and remained unchanged after 1000 cycles, making it suitable for intestinal shape detection. Integration of four strain sensors allowed for the detection of bending direction and examination of spatial shape. The friction method for preparing strain sensors on medical catheters with different GFs shows potential for various medical applications.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
Article
Chemistry, Multidisciplinary
Yanmei Liang, Danqin Li, Yao He, Shixing Chao, Mingming Zhang, Xueqian Zhao, Weiqiang Zhou, Jingkun Xu, Baoyang Lu
Summary: This study successfully fabricated oxygen-vacancy PEDOT/V2O5 ultrathin nanosheets with high specific capacitance and excellent cyclic stability, demonstrating their enormous potential in high-energy storage.
NEW JOURNAL OF CHEMISTRY
(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)
