Article
Chemistry, Multidisciplinary
Munziya Abutalip, Guldana Zhigerbayeva, Dana Kanzhigitova, Perizat Askar, Yelriza Yeszhan, Tri Thanh Pham, Salimgerey Adilov, Rafael Luque, Nurxat Nuraje
Summary: In recent decades, there has been a growing interest in conducting polymers for their broad applications. However, the techniques for producing 2D nanosheets of conducting polymers are either complex or expensive, and a comprehensive approach for constructing 2D and 3D materials or their composites has not been documented. In this study, a simple and scalable synthetic protocol was developed to design 2D, 3D, and related conducting polymer nanocomposites. Diverse bicontinuous thin layers of oil and water were used to produce 2D nanosheets, and specially designed linkers were applied to lock the 3D networks of the conducting polymers and their composites. This technique is cost-effective and easily scalable, and it achieved the highest reported electrical conductivity for 2D PPY nanosheets to date.
ADVANCED MATERIALS
(2023)
Article
Polymer Science
Young-Gi Kim, Hai-Long Nguyen, Patrick Kinlen
Summary: The study identified secondary dopants and doping methods crucial for increasing the electrical conductivity of polyaniline. The use of secondary film doping method and p-toluenesulfonic acid led to a significant increase in the electrical conductivity of the doped polyaniline. A novel vapor annealing doping method was also developed to introduce secondary dopants into solution cast polyaniline films.
Article
Chemistry, Analytical
Oxana Gribkova, Varvara Kabanova, Vladimir Tverskoy, Alexander Nekrasov
Summary: The structure of conducting polymers and polyacids used during electrochemical deposition has a significant impact on the performance of sensors.
Article
Chemistry, Physical
Trin Kamjornsupamitr, Thanakorn Sangthumchai, Pranorm Saejueng, Jitapa Sumranjit, Andrew J. Hunt, Surangkhana Budsombat
Summary: Composite proton conducting membranes were successfully synthesized from chitosan, poly (vinyl alcohol) and sulfonic acid-functionalized silica nanoparticles. The effects of sulfosuccinic acid (SSA) content on membrane properties were studied, showing an increase in water vapor absorption, water uptake, ion exchange capacity, and proton conductivity with increasing SSA content. The influence of nanoparticle loading and polymer shell on membrane properties was also investigated.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Electrical & Electronic
Umesh Somaji Waware, Mohd Rashid, A. M. S. Hamouda, Rohana Adnan, G. J. Summers
Summary: The uniform dielectric permittivity and frequency-dependent ac conductivity of hollow and porous semiconducting copolymer poly(aniline-co-m-hydroxyaniline) (PA-co-m-HA)s were studied using various techniques including electrochemical impedance spectroscopy, electronic spectroscopy, X-ray diffraction, and cyclic voltammetry. The copolymer exhibited globular and porous morphology, reduced crystallinity, and blue-shift in optical spectra.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Polymer Science
Ranganath Wahalathantrige Don, Timothy J. Dowell, Briana L. Simms, Davita L. Watkins, David O. Wipf, Colleen N. Scott
Summary: In this study, a new polymer containing the rhodamine core, polyrhodamine (PRho), was synthesized and its optical and electrochemical properties were determined. The polymer is soluble in polar solvents, with repeat units existing in various forms depending on the pH of the media, affecting its photophysical properties. It exhibits electrochemical reversibility, stability up to 1000 cycles, and impressive conductivity in the semiconductor range when treated with 20% HCl.
Article
Polymer Science
Apoorv Saraswat, Sunil Kumar
Summary: This study focuses on functionalizing polyaniline through organic electrochemistry, by blending it with functional segments of other monomers. Functionalized polyaniline has shown potential in various applications such as chemical sensors and rechargeable batteries. Electrochemical tools play a crucial role in modifying and analyzing the electrochemical properties of polyaniline.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Chemistry, Physical
Huanhuan Dong, Hongge Gao, Jiarun Geng, Xuesen Hou, Suning Gao, Shiwen Wang, Shulei Chou
Summary: The low electronic conductivity of organic electrode materials in lithium-ion batteries has been improved by synthesizing a conducting three-dimensional metal-organic framework (3D-MOF). The (NBu4)2Fe-2(DHBQ)3 material shows high electron conductivity and superior electrochemical performance, with good reversible capacity and capacity retention under different discharge rates. These results suggest the potential application of conductive MOFs for energy conversion and storage acceleration.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Polymer Science
Kyoungwook Kim, Bomi Kim, Kitae Kim, Moon Jeong Park
Summary: By controlling the crystallinity of ice, this study reveals the electronic properties and packing structures of conducting polymer nanosheets formed on ice surfaces. It is found that highly crystalline ice surfaces promote anisotropic growth of conducting polymer crystals, leading to improved charge transport efficiency in the formed nanosheets.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Energy & Fuels
Yanrong Zhu, Jude O. Iroh, Ramakrishnan Rajagopolan, Aydin Aykanat, Richard Vaia
Summary: This study systematically varied the feed composition to synthesize polyaniline (PANi) and polyaniline-clay nanocomposites (PACN), and analyzed their thermal properties. The results showed that increasing the oxidant concentration decreased the thermal stability and melting point of PANi, while the reinforcement of PANi with clay increased its thermal stability and melting point. The optimal thermal stability and melting point of PANi were achieved by adding about 0.1 wt% of the oxidant.
Article
Chemistry, Physical
Peiyu Tan, Feifei Lu, Yuge Han
Summary: Poly(3,4-ethylenedioxythiophene) (PEDOT) is an excellent electrochromic material with inherent infrared (IR) electrochromic properties, making it promising for intelligent IR thermal management. This study investigates the mechanism underlying the IR electrochromic performance of PEDOT by employing eight common dopants and in situ electrochemical deposition. The results show that the delocalization of polarons and bipolarons on PEDOT chains is related to the positively polarized sulfur atoms in the thiophene rings, which determines the reflectance regulation of PEDOT films. The diverse IR control capabilities of different doped PEDOT devices mainly result from the variation in charge carrier concentration in the oxidized state.
CHEMISTRY OF MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Tuan Van Nguyen, Quyet Van Le, Shengjie Peng, Zhengfei Dai, Sang Hyun Ahn, Soo Young Kim
Summary: Electrochromism is the ability of a material to change its optical properties or color when an external potential is applied. Conventional electrochromic materials based on inorganic materials have drawbacks including single color change, expensive materials, and slow switching speed. To overcome these challenges, conducting polymers (CPs) have emerged as a promising alternative with advantages of multicolor, fast response, low cost, easy processing, and environmental friendliness. This review introduces the current state-of-the-art development of ECDs based on three popular CPs, namely, polyaniline, polypyrrole, and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate, with emphasis on their synthetic approaches and electrochromic performance.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Review
Chemistry, Multidisciplinary
Sapana Jadoun, Jorge Yanez, Hector D. Mansilla, Ufana Riaz, Narendra Pal Singh Chauhan
Summary: The accessibility to clean water is crucial for humans, but a large number of people worldwide still die due to water contamination. Therefore, the application of advanced materials and techniques is necessary. This article reviews the use of nanohybrids combining conducting polymers and zinc oxide for photocatalytic water purification, and introduces several preparation methods and their advantages.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Review
Polymer Science
Urte Samukaite Bubniene, Vilma Ratautaite, Arunas Ramanavicius, Vytautas Bucinskas
Summary: This paper provides an overview of the application of conducting polymers in tactile sensor design, covering topics such as the chemical and physical properties of conducting polymers, conversion of mechanical effects, additives used in sensor development, design aspects of tactile sensors, and operational principles. Additionally, it discusses various methods applied for the design of sensors based on conductive polymers.
Article
Polymer Science
Alexey I. I. Volkov, Rostislav V. V. Apraksin
Summary: In this study, the effects of different salt additives on the electrochemical properties, morphology, and structure of PEDOT:PSS films were systematically investigated. The results showed a close relationship between the electrochemical properties of the films and the nature of the additives, which could be correlated with the Hofmeister series. This research provides insights into the modification processes within PEDOT:PSS films and the potential for fine-tuning their properties by selecting appropriate salt additives.
Article
Polymer Science
Johnson H. Y. Chung, Sepidar Sayyar, Gordon G. Wallace
Summary: Melt-electrowriting is an emerging method for fabricating micron-scale structures suitable for tissue engineering. This study demonstrated that the addition of graphene can significantly improve the processability of polycaprolactone and enhance the resolution of the fabricated scaffolds. Moreover, graphene can tailor the degradation process and prevent damage to the internal matrix of the polymer.
Article
Chemistry, Analytical
Alexander R. Harris, Carrie Newbold, Dimitra Stathopoulos, Paul Carter, Robert Cowan, Gordon G. Wallace
Summary: The electrochemical performance of platinum electrodes was evaluated in vitro and in vivo, and the study found that electrode polarization significantly affected the electrochemical response. Initial in vitro measurements were not good predictors of subsequent measurements in vitro or in vivo. Electrode implantation affected the electrochemical impedance, with lower frequencies being more dependent on electrode properties and higher frequencies being dependent on solution properties.
Article
Materials Science, Biomaterials
D. S. Abdullah Al Maruf, Krishnan Parthasarathi, Kai Cheng, Payal Mukherjee, David R. McKenzie, Jeremy M. Crook, Gordon G. Wallace, Jonathan R. Clark
Summary: This review focuses on the recent progresses in modulating the physiochemical properties and applications of biomaterials in bone tissue engineering (BTE) for mandibular segmental defect repair. BTE is an important strategy for reconstructing critical-sized bone defects and improving patients' quality of life.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2023)
Article
Engineering, Environmental
Kezhong Wang, Yunfeng Chao, Zhiqi Chen, Sepidar Sayyar, Caiyun Wang, Gordon Wallace
Summary: A facile coaxial wet-spinning method was used to continuously produce hollow graphene fibers with high conductivity and flexibility. The resulting fibers exhibited outstanding electrochemical and mechanical properties, making them promising candidates for use in wearable supercapacitors and electronics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Abdul Moqeet Hai, Zhilian Yue, Stephen Beirne, Gordon Wallace
Summary: Electrowriting combines 3D printing and electrospinning to produce complex structures with submicron resolutions. This study demonstrates the compatibility of water-based silk fibroin ink with electrowriting and explores the optimization of ink composition and process parameters. The electrowriting of hydrophilic silk fibroin has the potential to create material structures with biological properties similar to natural systems.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xiaoteng Jia, Xuenan Ma, Li Zhao, Meiying Xin, Yulei Hao, Peng Sun, Chenguang Wang, Danming Chao, Fangmeng Liu, Caiyun Wang, Geyu Lu, Gordon Wallace
Summary: Implanted rechargeable batteries with biodegradable properties are highly desirable, but limited by the lack of suitable electrode materials. In this study, we present a molecular engineering strategy to develop erodible poly(3,4-ethylenedioxythiophene) (PEDOT) with hydrolyzable carboxylic acid pendants. The compact rechargeable Zn battery with this material demonstrates high capacity and cycling stability, and shows complete biodegradation and biocompatibility in vivo. This strategy offers potential for developing implantable conducting polymers with predetermined degradation profiles and high energy storage capability.
Correction
Multidisciplinary Sciences
Nutan Chaudhari, Alison D. Findlay, Andrew W. Stevenson, Tristan D. Clemons, Yimin Yao, Amar Joshi, Sepidar Sayyar, Gordon Wallace, Suzanne Rea, Priyanka Toshniwal, Zhenjun Deng, Philip E. Melton, Nicole Hortin, K. Swaminathan Iyer, Wolfgang Jarolimek, Fiona M. Wood, Mark W. Fear
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Yan Zhou, Xiaoteng Jia, Daxin Pang, Shan Jiang, Meihua Zhu, Geyu Lu, Yaping Tian, Caiyun Wang, Danming Chao, Gordon Wallace
Summary: The authors propose a simplified wearable iontophoresis patch with a built-in Mg battery for efficient and controllable transdermal delivery. This patch eliminates the conventional interface impedance between the electrode and drug reservoir, reducing system complexity and size. The delivery dosage can be easily manipulated by tuning the viologen hydrogel and the iontophoresis stimulation mode.
NATURE COMMUNICATIONS
(2023)
Article
Electrochemistry
Amruthalakshmi Vijayakumar, Yong Zhao, Kezhong Wang, Yunfeng Chao, Haiqun Chen, Caiyun Wang, Gordon G. G. Wallace
Summary: In this study, a scalable one-step glucose blowing method was used to prepare a porous N-doped carbon supported Cu nanoparticles (Cu-NC) composite catalyst for CO2 electroreduction. The Cu-NC catalyst showed efficient catalytic activity for CO2-to-C1 product (CO and formate) conversion, with a high efficiency of 69% at an overpotential of 590 mV. The excellent catalytic activity is attributed to the structure of the composite and the presence of N-species in the carbonaceous matrix.
Review
Chemistry, Physical
Anh Linh Hoang, Sivakumar Balakrishnan, Aaron Hodges, George Tsekouras, Atheer Al-Musawi, Klaudia Wagner, Chong-Yong Lee, Gerhard F. Swiegers, Gordon G. Wallace
Summary: 'Green' hydrogen produced from water electrolysis powered by renewable energy is crucial for achieving 'net zero' carbon emissions in the future global energy transition. This article provides an overview of recent progress in developing energy efficient and durable electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline water electrolysis. It highlights the challenges and potential improvements for commercial-scale water electrolysis, and presents the latest developments in alkaline water splitting technology. A comparative table lists the high-performing catalysts that are likely to accelerate the prospects of green hydrogen.
SUSTAINABLE ENERGY & FUELS
(2022)
Review
Chemistry, Physical
Ruibo Zhong, Sepehr Talebian, Barbara B. Mendes, Gordon Wallace, Robert Langer, Joao Conde, Jinjun Shi
Summary: RNA-based therapeutics hold great promise in disease intervention, and hydrogels are attracting attention for controlled release of these therapeutics. Hydrogels offer advantages such as biodegradability, tunable physiochemical properties, and precise spatiotemporal control over RNA release.
Article
Polymer Science
Hadis Khakbaz, Sepidar Sayyar, Stephen Beirne, Michael Heitzmann, Peter C. Innis
Summary: This study presents a binary-hybrid composite of boron nitride (BN) nanoparticles and micro-diamond (D) fillers in an elastomeric polyurethane (PU) matrix, which can be three-dimensionally printed to produce a highly flexible and self-supporting structure. The research shows that the hybrid matrix significantly enhances the mechanical properties and thermal conductivity compared to neat PU. This three-dimensional printable multiscale hybrid composite has great potential for flexible and stretchable microelectronic applications.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Cell & Tissue Engineering
Tajanka Mladenovska, Peter F. Choong, Gordon G. Wallace, Cathal D. O'Connell
Summary: New developments in additive manufacturing and regenerative medicine have the potential to disrupt traditional therapy development and medical device manufacture. Regulators face challenges in adapting traditional regulatory frameworks for bespoke solutions and incorporating living cells in 3D bioprinting. This perspective discusses the regulatory challenges of 3D bioprinting in comparison to existing cell therapies and custom-made medical devices, including classification, risk, standardization, and quality control.
REGENERATIVE MEDICINE
(2023)
Article
Chemistry, Analytical
Jawairia Umar Khan, Mirbaz Ali Pathan, Sepidar Sayyar, Brett Paull, Peter C. C. Innis
Summary: Electrophoresis on textile fiber substrates allows for the movement, separation, and concentration of charged analytes. Researchers have developed an approach to optimize the experimental conditions affecting the electrophoretic separation on textile-based substrates. By adjusting the electric field magnitude, sample concentration, and sample volume, efficient separation can be achieved without compromising the analysis time on simple and low-cost textile substrates.
ANALYTICAL METHODS
(2023)
Review
Chemistry, Multidisciplinary
Qilong Wu, Fangfang Zhu, Gordon Wallace, Xiangdong Yao, Jun Chen
Summary: This article introduces the severity of nitrogen pollution and calls for joint action for sustainable nitrogen use. Electrocatalytic NW reduction is presented as a potentially greener alternative for recycling NW and producing high-value chemicals. However, there are challenges in integrating this technology into upstream and downstream industrial chains. The article discusses future directions for optimizing production processes and providing nitrogenous raw materials.
CHEMICAL SOCIETY REVIEWS
(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)