Article
Materials Science, Multidisciplinary
Vidhya Selvanathan, Mohd Hafidz Ruslan, Ammar Ahmed Nasser Alkahtani, Nowshad Amin, Kamaruzzaman Sopian, Ghulam Muhammad, Md Akhtaruzzaman
Summary: The fabrication of quasi-solid polymer electrolytes based on esterified starch has shown promising results for applications in dye-sensitized solar cells. The chemical modification of potato starch via phthaloylation method, and the incorporation of propylene carbonate, dimethylformamide, and lithium iodide resulted in high ionic conductivity and efficiency in the biopolymer gel electrolyte. This research suggests a sustainable and cost-effective approach for developing quasi-solid-state DSSC with starch-based electrolytes.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Review
Materials Science, Multidisciplinary
Laura Manceriu, Anil Kumar Bharwal, Nathan Daem, Jennifer Dewalque, Pierre Colson, Frederic Boschini, Rudi Cloots
Summary: Dye-sensitized solar cells (DSSCs) are a promising solution for portable electronics and IoT applications due to their low-cost fabrication and high efficiency. However, the main obstacle to their large-scale exploitation is their limited long-term stability caused by liquid electrolytes. This review summarizes advances in alternative polymer electrolytes, with a focus on polysiloxane-based poly(ionic liquid)s, and evaluates their behavior in DSSCs. The assessment of printability for liquid and gel polymer electrolytes, particularly polysiloxane-based electrolytes, is also discussed.
Article
Materials Science, Paper & Wood
Vidhya Selvanathan, Rosiyah Yahya, Md Shahiduzzaman, Mohd. Hafidz Ruslan, Ghulam Muhammad, Nowshad Amin, Md. Akhtaruzzaman
Summary: The intrinsic adhesive properties of starch and cellulose were used to enhance the performance of electrolytes in DSSC. Chemical modification and addition of ionic liquids were effective in improving the efficiency of the quasi-solid DSSC.
Article
Chemistry, Multidisciplinary
Shanmuganathan Venkatesan, Chia-Yi Chiang, Hsisheng Teng, Yuh-Lang Lee
Summary: A complete printing process was developed for the fabrication of monolithic quasi-solid-state dye-sensitized solar cells (m-QS-DSSCs). The structures were constructed by printing TiO2 layers, a ZrO2 insulating layer, and a carbon counter electrode (CE) onto an FTO substrate, followed by printing a quasi-solid-state printable electrolyte (QS-PE) on top of the porous carbon CE. The optimized porous structures and characteristics of the ZrO2 and carbon layers enabled the m-QS-DSSCs to achieve an efficiency of 6.79% under 1 sun illumination.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Polymer Science
Kai Sing Liow, Coswald Stephen Sipaut, Rachel Fran Mansa, Mee Ching Ung, Shamsi Ebrahimi
Summary: The study focused on the performance of a polymer matrix consisting of polyaniline-modified nanosilica incorporated into polyurethane as a quasi-solid-state electrolyte in dye-sensitized solar cells. The effects of varying the PEG molecular weight on the distribution, morphology, stability, gel content, and structural change of the S-PANi were analyzed. The quasi-solid-state electrolyte with a PEG molecular weight of 2000 gmol(-1) demonstrated the highest light-to-energy conversion efficiency.
Article
Electrochemistry
Shanmuganathan Venkatesan, Yun-Yu Chen, Chung-Yu Chien, Ming-Hsiang Tsai, Hsisheng Teng, Yuh-Lang Lee
Summary: The study investigated the impact of Al2O3 and ZnO nanofillers in composite printable electrolytes (CPEs) on the performance of quasi-solid-state dye-sensitized solar cells. While Al2O3-CPE showed higher ion diffusion coefficients, ZnO NFs significantly reduced charge recombination rates, enhancing cell performance.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Jinyue Wen, Yibin Liu, Tong Li, Chenyang Liu, Ting Wang, Yuanyuan Liu, Yang Zhou, Gongming Li, Zhicheng Sun
Summary: In this work, a quasi-solid electrolyte based on a conductive melamine formaldehyde (MF) sponge scaffold is proposed for the fabrication of QS-DSSCs. The MF sponge's three-dimensional porous structure can quickly adsorb and store electrolytes, with high wettability, adsorption capacity, and electrical transmission performance. The resulting QS-DSSCs show a photoelectric conversion efficiency (PCE) of up to 7.822% and have great potential in renewable energy applications.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jinyue Wen, Zhicheng Sun, Yun Qiao, Yang Zhou, Yibin Liu, Qingqing Zhang, Yuanyuan Liu, Shouzheng Jiao
Summary: This study focuses on utilizing quasi-solid-state polymer-based electrolytes to improve the leakage and volatilization problems of liquid electrolytes in dye-sensitized solar cells. By incorporating reduced graphene oxide (rGO) and intercalated MXene/rGO into a copolymer electrolyte, quasi-solid-state DSSCs with enhanced photoelectric performance were successfully prepared.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Kicheon Yoo, Ashok Kumar Kaliamurthy, Jae-Joon Lee, Min Jae Ko
Summary: The performance of quasi-solid-state dye-sensitized solar cells (qs-DSSCs) using Polyvinylpyrrolidone/Polyethylene glycol (PVP/PEG) blends was investigated over a wide temperature range. The PVP/PEG blend exhibited low glass-transition temperature and high ionic conductivity, leading to high power conversion efficiency (PCE) at both low and ambient temperatures. Additionally, the qs-DSSC with PVP/PEG showed excellent long-term stability.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Shanmuganathan Venkatesan, Nguyen Huong Tra My, Hsisheng Teng, Yuh-Lang Lee
Summary: Thin films of solid-state polymer electrolytes (SSPEs) have been developed for dye-sensitized solar cells (DSCs) for the first time. Gel-electrolytes are prepared by utilizing a blend of poly(ethylene oxide) (PEO)/polyethylene glycol (PEG) and an acetonitrile-based iodide liquid electrolyte, and then cast onto a glass substrate to fabricate solvent-free SSPEs by evaporating the solvent. The SSPE films are sandwiched between photoelectrodes and counter electrodes to assemble the solid-state DSCs, and the PCE can be improved by introducing TiO2 nanofillers in the SSPEs. The high stability of the solid-state DSCs is demonstrated with a retention of 98% of their original efficiency after a 700-hour test period.
JOURNAL OF POWER SOURCES
(2023)
Article
Energy & Fuels
Balasubramanian Karuppasamy, Balusamy Shenbagabalakrishnan, Venkatachari Gayathri
Summary: The photovoltaic performance of aqueous Al-ion electrolyte-based dye-sensitized solar cells was investigated, showing an efficiency 50% higher than the quoted value and an 80% enhancement with antimony-doped tin oxide compared to undoped tin oxide.
Article
Chemistry, Physical
Burak Unlu, Serbulent Turk, Mahmut Ozacar
Summary: Gellan gum/poly(3-hexylthiophene)/lithium chloride gels with different ratios of LiCl were synthesized and used as gel electrolytes in dye sensitized solar cells (DSSCs). The presence of 6 M LiCl prevented shrinkage of gels and increased surface energy values, resulting in good adhesive property. The flexible nature of LiCl-contained gels at low temperatures makes them suitable for various conditions and cell architecture. By using these gel electrolytes, higher open circuit potentials and improved solar conversion efficiency were achieved, making them a promising alternative to address the leakage and evaporation issues of liquid electrolytes in DSSCs.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Energy & Fuels
Jianfei Lin, Yinglin Wang, Yanan Li, Yuming Shi, Xin Guo, Lingling Wang, Yichun Liu, Xintong Zhang
Summary: By using a chemical cross-linking strategy, high-performance quasi-solid-state DSSCs based on copper have been successfully fabricated. This strategy effectively reduces the crystallinity of polymers inside the gel polymer electrolytes, improving the diffusion coefficient and enhancing the photovoltaic efficiency and open-circuit voltage of the cells.
Article
Energy & Fuels
Simone Galliano, Federico Bella, Matteo Bonomo, Fabrizio Giordano, Michael Gratzel, Guido Viscardi, Anders Hagfeldt, Claudio Gerbaldi, Claudia Barolo
Summary: The study introduces a cobalt-based, jellified aqueous electrolyte with xanthan gum, which achieves an efficiency exceeding 4% in DSSCs. Using design of experiment, the effects of Co2+ concentration, Co2+/Co3+ ratio, and xanthan gum amount modifications on the photovoltaic parameters of lab-scale solar cells were precisely and significantly studied.
Article
Chemistry, Physical
Norshahirah M. Saidi, Zhi Ling Goh, Hanani Mohamad Arif, N. K. Farhana, S. Ramesh, K. Ramesh
Summary: Enhanced quasi solid-state polymer electrolytes were developed by consolidating dissolved polyacrylonitrile in a binary organic solvent with different concentrations of iodine. The electrolyte composed of one-tenth of the weight of the NaI salt achieved the highest ionic conductivity and best photovoltaic efficiency among all tested concentrations.
SOLID STATE IONICS
(2021)
Article
Energy & Fuels
Mucella Ozbay Karakus, Merve Eren Yakisiklier, Ali Delibas, Enise Ayyildiz, Hidayet Cetin
Article
Chemistry, Applied
Ali Delibas
Summary: In this study, poly(styrene-co-butyl acrylate) latexes containing ZnO and TiO2 nanoparticles were synthesized using miniemulsion polymerization, and characterized using various techniques. It was found that ZnO nanoparticles improved the strength and yellowing resistance of the latex films.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Irfan Capan, Mehmet Gumus, Halil Gokce, Hidayet Cetin, Yusuf Sert, Irfan Koca
Summary: A novel series of pyrrole-3-one derivatives were synthesized and their properties were studied through various experimental methods, along with exploring the relationship between experimental results and theoretical calculations. Molecular docking analysis and drug-likeness calculations were also conducted in this research.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2022)
Article
Energy & Fuels
Ayse Benk, Ali Delibas, Abdullah coban
Summary: This study aimed to find a biobinder for producing waterproof or water-resistant coal briquettes from Slater coal slurry of South Africa. Molasses and crude glycerol were used as raw materials for the binders, resulting in higher tensile strength when based on crude glycerol citric acid ester. Waterproof briquettes were achieved by blending phosphoric acid-hardened molasses with glycerol citric acid ester-based binders, with the best results when blended at 50%.
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION
(2022)
Article
Polymer Science
Adem Buyukbektas, Ali Delibas, Ayse Benk, Ramazan Coskun
Summary: This study focused on the synthesis, characterization, and adsorptive properties of composite hydrogels for removing MB dye from aqueous solutions. The composite hydrogels were synthesized using a combination of monomers and laponite clay, and the resulting materials were characterized by various analytical techniques. The study found that the composite hydrogels had slightly lower adsorption capacities compared to pure hydrogels, but were still effective in removing dye from solutions.
JOURNAL OF POLYMER RESEARCH
(2021)
Article
Polymer Science
Devlet Yeter Karanfil, Ramazan Coskun, Ali Delibas
Summary: In this study, aminated magnetic polymeric resin (AMPR) was synthesized and characterized. The usability of AMPR as an adsorbent for removing azo dye and anthraquinone dye from aqueous solutions was investigated. The effects of various factors on adsorption were examined, and the thermodynamic and kinetic properties of adsorption were determined. The study also found that AMPR maintained its high adsorption affinity in a dense matrix medium and repeated adsorption-desorption cycles.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Computer Science, Artificial Intelligence
Mucella Ozbay Karakus, Orhan Er
Summary: Cardiovascular diseases are a leading cause of death worldwide, and machine learning algorithms show promise in predicting patient survival and identifying important risk factors.
NEURAL COMPUTING & APPLICATIONS
(2022)
Article
Chemistry, Applied
Nurullah Kartaloglu, Suna Elif Akcin, Mesut Eren, Ali Delibas
Summary: Since alkyd resins contain hazardous solvents, it is important to convert them into waterborne hybrid polymers. In this study, alkyd/styrene acrylic waterborne hybrid polymers were synthesized using synthesized alkyd resins and different biosources. The synthesized latexes and their films were analyzed, and it was found that the type and concentration of the alkyds affected various properties. Experiments on waterborne paint systems showed that the alkyd content did not affect the paint color, indicating that hybrid waterborne latexes could be used for exterior paints.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2023)
Article
Energy & Fuels
Ramazan Coskun, Ali Delibas, Devlet Yeter Karanfil
Summary: In recent years, there has been a growing trend in creating improved functionalized nanomaterials to enhance their physicochemical, catalytic, and biological capabilities. This study synthesized eco-friendly metal ferrite-supported bio-nanocomposites from hemp biomass using a low-cost co-precipitation method. The synthesized materials were characterized and investigated for their ionic conductivity, catalytic effects, and thermal stability. The results showed that the bio-nanocomposites exhibited high performance in terms of ionic conductivity, thermal stability, and catalytic activity against cationic dyes under sunlight.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Materials Science, Composites
Nurullah Kartaloglu, Ali Delibas
Summary: Recent studies have shown the importance of using the mini-emulsion technique to incorporate magnetic nanoparticles (MNPs) into polymer structures in order to control their physical and chemical properties. In this study, MNPs were modified with clay and successfully incorporated into acrylic polymers. The effects of clay content on the functionality of MNPs and the properties of polymer nanoparticles containing the modified MNPs were investigated. The results demonstrated that the mini-emulsion polymerization technique can effectively incorporate MNPs into the polymer structure and improve the mechanical characteristics of the resulting composite latex.
POLYMER COMPOSITES
(2023)
Article
Environmental Sciences
Mucella Ozbay Karakus
Summary: This study utilized a unique meteorological dataset and employed a deep hybrid Convolutional Neural Network-Support Vector Regression approach to predict hydropower generation. The comparison results showed that the CNN-SVR model outperformed other models in predicting the net head and hydroelectric power generation.
GEOCARTO INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Muecella Ozbay Karakus
Summary: This study focuses on the effect of cross-linking mechanisms in the development of hydrogel-based flexible ionic diodes (HBIDs) and investigates the performance of hydrogels with varying cross-linking ratios. The results demonstrate that the cross-linking ratio significantly influences ion conductivity and device adaptability to bending.
ADVANCED MATERIALS INTERFACES
(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)