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
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
Electrochemistry
Felicia Zaar, Sandra Olsson, Rikard Emanuelsson, Maria Stromme, Martin Sjodin
Summary: This study presents the design, synthesis, and characterization of a conducting polymer backbone functionalized with free base porphyrin pendant groups. The results show that the polymerized system is stable and that the properties of the polymer and the porphyrins are independently preserved. The system offers possibilities of molecular heterogeneous electrocatalysis for redox reactions.
ELECTROCHIMICA ACTA
(2022)
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
Nanoscience & Nanotechnology
Michal Blaha, Milan Bousa, Vaclav Vales, Otakar Frank, Martin Kalbac
Summary: The study successfully synthesized a graphene/polyaniline heterostructure with excellent electrochemical performance, which can be used as electrode materials for supercapacitors. After cyclic testing, the material showed a capacitance retention rate of +/-1%, one order of magnitude higher than the capacitance of pristine graphene.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Polymer Science
Przemyslaw Ledwon, Mieczyslaw Lapkowski
Summary: This review article presents various electrochemical and spectroelectrochemical techniques used to study conjugated polymers, providing a perspective on the development of this research area over the past 40 years. It discusses the significant impact of electrochemical and spectroelectrochemical methods in the advancement of organic semiconductors, demonstrating their potential in explaining various phenomena.
Article
Biochemical Research Methods
Facai Wei, Tingting Zhang, Renhao Dong, Yong Wu, Wenda Li, Jianwei Fu, Chengbin Jing, Jiangong Cheng, Xinliang Feng, Shaohua Liu
Summary: A simple, general and robust method for the preparation of 2D mesoporous conducting polymer nanosheets with adjustable pore size and thickness is described. The resulting materials exhibit controllable morphology and composition, making them potential candidates for high-performance electrode materials in supercapacitors and alkali metal ion batteries. The preparation time is relatively short and the procedure is suitable for users with expertise in various disciplines.
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)
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)
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.
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
Chemistry, Multidisciplinary
K. Namsheer, Chandra Sekhar Rout
Summary: Conducting polymers are extensively studied for their outstanding properties and limitations in their pristine form can be overcome through hybridization with other materials. The synergetic effects of conducting polymer composites find wide applications in electrical, electronics, and optoelectronic fields. Understanding the transport models and physical properties of these composites is crucial for their various applications in fields like energy storage, photocatalysis, and biomedical applications.
Article
Electrochemistry
Kazhmukhan Urazov, Margarita Dergacheva, Alexey Tameev, Oxana Gribkova, Konstantin Mit
Summary: A one-step method for electrodeposition of thin Cu2ZnSnSe4 (CZTSe) film onto a polyaniline/FTO/glass substrate was developed, with the nucleation of CZTSe studied during film formation. The photovoltaic performance was significantly improved in the CZTSe/polyaniline/FTO/glass heterojunction, with polyaniline acting as a hole transport layer to enhance charge transfer.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Olga D. Iakobson, Oxana L. Gribkova, Alexey R. Tameev, Jean-Michel Nunzi
Summary: The study optimized the structure of experimentally designed solar cells by adjusting the thickness of the photoactive layer. A simple method based on light absorbance and exciton generation rate was proposed to optimize the thickness range of the photoactive layer, which proved effective for solar cells with different natures of photoactive materials.
SCIENTIFIC REPORTS
(2021)
Article
Nanoscience & Nanotechnology
Xiaojing Lv, Jin Li, Libin Xu, Xuchen Zhu, Alexey Tameev, Alexander Nekrasov, Grigory Kim, Haofei Xu, Cheng Zhang
Summary: Transparent-to-colored electrochromic devices are promising with the designed triphenylamine derivatives and thermally cross-linking copolymers showing outstanding performance in multi-colored changes and high optical contrast, making them ideal for high-performance transmittive electrochromic devices.
ACS APPLIED MATERIALS & INTERFACES
(2021)
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
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
Chemistry, Multidisciplinary
Varvara A. Kabanova, Oxana L. Gribkova, Alexey R. Tameev, Alexander A. Nekrasov
Summary: Thin layers of poly(3,4-ethylenedioxythiophene) complexes with various sulfonated polyelectrolytes were electrochemically formed and used as transparent hole transport layers in CH3NH3PbI3 perovskite solar cells. The influence of the polyelectrolyte structure on the device performance was investigated.
MENDELEEV COMMUNICATIONS
(2021)
Article
Polymer Science
Vladimir Lyutov, Varvara Kabanova, Oxana Gribkova, Alexander Nekrasov, Vessela Tsakova
Summary: This study reveals that different types of polysulfonate dopants can influence the oxidation and doping levels, polymerization efficiency, and redox behavior of PEDOT films. The use of acid or salt form, flexibility of the polysulfonate chains, and molecular weight of the polysulfonate species all play a role in determining these properties. The findings demonstrate the potential for tailored manipulation of basic properties of PEDOT films based on the selection of polysulfonate dopants.
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
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
Engineering, Environmental
Xiaojing Lv, Jin Li, Ling Zhang, Mi Ouyang, Alexey Tameev, Alexander Nekrasov, Grigory Kim, Cheng Zhang
Summary: Quinacridone derivatives exhibit excellent electrochromic and capacitance properties, demonstrating potential applications in portable and wearable electronic devices.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Polymer Science
Oxana L. Gribkova, Alexander A. Nekrasov
Summary: This review summarizes the main advantages of the spectroelectrochemical method in recent studies on electrosynthesis and redox processes of electroactive polymer composite materials, which have wide application in designing organic optoelectronic devices, batteries and sensors. The spectroelectrochemical methods discussed include in situ electron absorption, Raman, infrared and electron spin resonance spectroscopies.
Article
Electrochemistry
O. L. Gribkova, V. A. Kabanova, A. Yagodin, A. A. Averin, A. A. Nekrasov
Summary: This study investigates the electrochemical polymerization of 3,4-ethylenedioxythiophene (EDOT) in the presence of water-soluble sodium salt of zinc octa(3',5'-dicarboxyphenoxy)phthalocyaninate. The results show that the EDOT polymerization proceeds at a higher rate when phthalocyaninate is present compared to using low-molecular electrolyte. The accelerated electropolymerization is attributed to the templating effect of the locally-ordered carboxylate groups of phthalocyaninate. Additionally, the study examines the electronic and chemical structures, morphology, spectroelectrochemical, and sensor properties of the PEDOT composite films obtained in the presence of water-soluble phthalocyaninate for the first time.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
(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
Materials Science, Multidisciplinary
S. I. Pozin, D. A. Lypenko, O. M. Perelygina, O. L. Gribkova, V. V. Prokhorov, E. I. Mal'tsev
Summary: The study focused on examining the impact of incorporating J-aggregates of polymethine dye into the hole-transport layer of an organic light-emitting diode (OLED) on its characteristics and operational stability. Results showed that using PAn-PAMPSA at a specific component ratio in the interpolymer complex led to the highest efficiency characteristics, while the addition of J-aggregates did not significantly affect the efficiency but improved the operational stability of the devices.
INORGANIC MATERIALS-APPLIED RESEARCH
(2021)
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)
