Article
Materials Science, Multidisciplinary
Alessandro Pedico, Sergio Bocchini, Elena Tresso, Andrea Lamberti
Summary: A novel functionalized graphene oxide (fGO) is proposed for water desalination in this study. The fGO is obtained through functionalization and coating to create a porous electrode, which shows remarkable improvement in desalination performance. These findings lay the groundwork for future research.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Engineering, Chemical
Yoshihiro Nakayama, Eiji Imamura, Seiji Noda
Summary: This study experimentally investigated the possibility of using granular activated carbon (GAC) for capacitive deionization (CDI) electrodes and found that compressing GAC significantly improved ion removal. The effect of applied voltage on salt adsorption capacity was also studied, showing that the CDI cell with compressed GAC achieved a salt adsorption capacity comparable to other CDIs in previous studies, making it a potential cost-effective desalination technology.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Polymer Science
Humair Hussain, Asim Jilani, Numan Salah, Ahmed Alshahrie, Adnan MemiC, Mohammad Omaish Ansari, Joydeep Dutta
Summary: Due to the industrial revolution, fresh water reserves are being polluted every day and man-made activities have adverse effects upon the ecosystem. Therefore, it is necessary to explore new technologies to save and purify water resources. Capacitive deionization is considered as an emerging technique for removing excess ions to produce potable water and desalination.
Article
Engineering, Chemical
Ahmed S. Yasin, Ahmed Yousef Mohamed, Dong Hyun Kim, Thi Luu Luyen Doan, S. S. Chougule, Namgee Jung, Sungchan Nam, Kyubock Lee
Summary: By incorporating graphene hydrogel and ZnO nanoparticles, the prepared nanocomposite exhibited improved hydrophilicity, electrical conductivity, and electrosorptive capacity, showing excellent specific capacitance (746.5F g-1 at 10 mV s-1), salt removal efficiency (83.65%), and electrosorptive capacity (9.95 mg g-1). The nanocomposite design in this study has the potential to realize the practical CDI applications of activated carbon.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Jian Yu, Yue Liu, Xumei Zhang, Rumeng Liu, Qi Yang, Shen Hu, Haiou Song, Pengcheng Li, Aimin Li, Shupeng Zhang
Summary: In this study, a protonated carbon nitride-modified graphene oxide material was successfully synthesized and applied for ion removal in low concentration brackish water using capacitive deionization (CDI) technology. The material exhibited high electrosorption capacity, fast adsorption rate, and excellent regeneration efficiency.
Article
Engineering, Environmental
Chunyu Chen, Lijuan Men, An Liu, Siyang Yu, Jiankang Zhou, Zihan Wei, Dianchun Ju
Summary: This study created and manufactured innovative electrode materials with enhanced electrochemical and capacitive deionization (CDI) performances. The composite electrode exhibited high specific capacitance, specific surface area, and salt adsorption capacity. It also demonstrated good cycle stability and reproducibility, making it a promising practical CDI electrode material for desalination.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Ahmed S. Yasin, Dong Hyun Kim, Kyubock Lee
Summary: A ZnO nanoparticles-decorated activated carbon (ACZn) nanocomposite was successfully prepared for efficient capacitive deionization. The ACZn nanocomposite showed higher specific capacitance and improved desalination performance compared to activated carbon alone.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Environmental Sciences
Jing Sun, Yun Li, Haiou Song, Hongxiang Li, Qian Lai, Gusunkiz Egabaierdi, Qimeng Li, Shupeng Zhang, Huan He, Aimin Li
Summary: The shortage of freshwater supplies has hindered societal development. Capacitive deionization (CDI) is a promising solution for seawater and brackish water desalination, with electrode materials playing a crucial role in its performance. This study successfully synthesized a high-capacitance CNTs-b-MoS2 composite and combined it with activated carbon (AC) for CDI, demonstrating improved capacitance and desalination capacity. The CNTs-b-MoS2/AC composite shows potential as an advanced and cost-effective CDI electrode material.
Article
Engineering, Chemical
Sungho Bae, Yerin Kim, Seok Kim, Chong Min Chung, Kangwoo Cho
Summary: This study investigated the effects of ball-milling on the selective separation of SO42- using powdered activated carbon through capacitive deionization. The results showed that ball-milling could modify the pore size distribution and surface charge to enhance the selectivity of SO42-. The experiments with symmetric and asymmetric electrodes demonstrated the improved selectivity and ion swapping behavior induced by ball-milling.
Article
Materials Science, Multidisciplinary
Thi Thom Nguyen, Le Thanh Nguyen Huynh, Thi Nam Pham, Thanh Nhut Tran, Thi Thanh Nguyen Ho, Tien Dai Nguyen, Thi Thu Trang Nguyen, Thi Kieu Anh Vo, Gia Vu Pham, Viet Hai Le, The Tam Le, Thai Hoang Nguyen, Hoang Thai, Trong Lu Le, Dai Lam Tran
Summary: In this study, a cost-effective and high-performance electrode for brackish water capacitive deionization (CDI) desalination was developed by dispersing graphene/carbon nanotubes conducting hybrid in coconut shell derived activated carbon. The hybrid additive at 1 wt% showed more effective performance than single additives, demonstrating synergistic effects both technically and economically. This is the first study to report the application of ultra-low content AC/CNTs hybrid in AC based CDI electrodes.
Article
Engineering, Chemical
Ahmed G. El-Deen, Heba K. El-kholly, Mohammed Eid M. Ali, Hanan S. Ibrahim, M. K. Zahran, M. H. Helal, Jae-Hwan Choi
Summary: The study successfully synthesized graphene aerogel with ultra-high specific surface area, outstanding hydrophilic behavior, and high specific capacitance, showing great potential applications in the field of capacitive deionization.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Panyu Ren, Mohammad Torkamanzadeh, Xiao Zhang, Marek Twardoch, Choonsoo Kim, Volker Presser
Summary: In this study, the influence of different carbon additives on the electrochemical desalination performance was explored. The results indicate that the direct use of activated carbon electrode without additives leads to higher desalination capacity but lower desalination rate. The incorporation of small and less porous additives improves ion transport and desalination rates.
Article
Chemistry, Physical
Lijuan Men, Chunyu Chen, An Liu, Jiankang Zhou, Siyang Yu, Zihan Wei
Summary: In this study, a novel CDI electrode material, single layer graphene oxide loaded onto activated carbon fibers (SGO@ACF), was successfully prepared. The electrode exhibited high specific surface area, excellent electrochemical performance, good cyclability, and high salt adsorption capacity, making it a promising candidate for CDI desalination applications.
Article
Chemistry, Physical
Rana Uwayid, Nicola M. Seraphim, Eric N. Guyes, David Eisenberg, Matthew E. Suss
Summary: This study investigates the impact of oxidized cathodes on CDI performance and degradation. Experimental results show that reducing cell charging time and electrode mass can slow down the degradation rate.
Article
Materials Science, Multidisciplinary
Shi Liu, Bingjian Li, Yinjie Zhou, Xixi Xu, Rong Yang, Qiuze Wang, Jinchun Li
Summary: The NHGH-0.2 electrode, synthesized with nitrogen doped and hydrogen peroxide etching, exhibits a high specific surface area and hierarchical holey structure, leading to excellent electrochemical performance and cycling stability for capacitive deionization.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Environmental
Shuai Wang, Zhi-Yi Hu, Zi-Qian Geng, Ye-Chao Tian, Wen-Xiang Ji, Wen-Tao Li, Kun Dai, Raymond Jianxiong Zeng, Fang Zhang
Summary: The study identified refractory organics, referred to as melanoidins products (MPs), released from waste activated sludge (WAS) during thermal-alkaline pretreatment, which had high molecular weight and inhibited microbes. These MPs delayed the production of volatile fatty acids, reduced methane yield, and had a negative impact on anaerobic digestion after thermal-alkaline pretreatment.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Zhi-Yi Hu, Shuai Wang, Zi-Qian Geng, Kun Dai, Wen-Xiang Ji, Ye-Chao Tian, Wen-Tao Li, Raymond Jianxiong Zeng, Fang Zhang
Summary: The study presented a enriched alginate-degrading consortium (ADC) to control volatile fatty acids (VFAs) production from waste activated sludge (WAS) and maintain cell integrity. Results showed that dosing with ADC increased hydrolysis and acidification efficiency, while reducing the release of nitrogen and phosphorus.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yan-Ting Zuo, Shi Cheng, Hao-Han Jiang, Yu-Ze Han, Wen-Xiang Ji, Zheng Wang, Qing Zhou, Ai-Min Li, Wen-Tao Li
Summary: This study investigated the release and treatability of algae-derived organic matter (AOM) during water treatments. It was found that humic substances can protect algal cell membrane during prechlorination, and the variation of humic-like fluorescence can indicate the chlorine dose. Prechlorination released low molecular weight fractions and fluorescent nitrogenous biopterins. Physically extracted AOM cannot represent the released organic matter during prechlorination. Coagulation was more affected by humic substances than AOM released during prechlorination, and high molecular weight biopolymers and humic substances can be removed effectively. Low molecular weight fractions released by prechlorination can also be effectively removed, while other fractions were recalcitrant to coagulation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Boqiang Li, Fei Yang, Baiyang Chen, Juan Li, Lijuan Zhu, Wen-Tao Li
Summary: Dissolved organic nitrogen (DON) plays a key role in various processes, but detecting it at trace levels is difficult due to high method detection limits (MDL). To solve this issue, researchers isolated DON from dissolved inorganic nitrogen (DIN) and used vacuum ultraviolet (VUV) and hydrogen peroxide to convert DON into nitrate for analysis. This method has improved analytical precision and lower MDL compared to conventional methods.
Article
Environmental Sciences
Qiang Li, Yuxuan Ye, Wentao Li, Fei Pan, Dongsheng Xia, Aimin Li
Summary: This study investigates the adsorption properties of N-vinylpyrrolidone-divinylbenzene polymers (NVPD) with different N-vinylpyrrolidone (NVP) contents for tetracycline (TC). The results show that the polymer with 75% NVP content has the highest surface area and maximum TC adsorption capacity. Additionally, the presence of humic acid enhances the removal efficiency of TC by the polymer.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Yanqi Shi, Lezhou Zheng, Hexinyue Huang, Ye-Chao Tian, Zhimin Gong, Peng Liu, Xiaowei Wu, Wen-Tao Li, Shixiang Gao
Summary: This study investigated the release of fragments from the complex structure of polyester (PET) base fabrics and upper PU resin in PU synthetic leathers. The photoaging process of PET-U was compared with that of pure PET base fabric (PET-P). It was found that PET-U showed a similar but delayed trend in physical and chemical changes and debris release rate compared to PET-P. However, after 360 hours of illumination, the amount of microplastic fibers and particles as well as nanoplastics released from PET-U increased significantly.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Shi Cheng, Yanting Zuo, Aimin Li, Haohan Jiang, Wenliang Ji, Ji Wu, Wentao Li, Zhe Wang, Yonglin Zhou, Feng Zhu, Wei He, Zongli Huo, Yang Pan
Summary: In addition to UV wavelength and pH, UV irradiation intensity and fluence also play crucial roles in the UV/chlorine treatment of drinking water. This study developed a novel UV irradiation strategy to balance pharmaceutical and personal care product (PPCP) degradation and disinfection by-products (DBPs) formation during UV/chlorine water treatment. High UV irradiation intensity increased the degradation rate of PPCPs but decreased the removal percentage of some PPCPs. It also reduced the degradation of chromophores of dissolved organic matters (DOM) and mitigated the formation of DBPs, addressing the key role of active chlorine in DBP formation.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Analytical
Yanting Zuo, Shi Cheng, Haohan Jiang, Hao Zhang, Ji Wu, Hongfang Sun, Feng Zhu, Aimin Li, Zongli Huo, Wentao Li
Summary: A simple, accurate and reliable analytical method using IC-ESI-MS/MS was developed for simultaneous determination of various organic and inorganic acids. The method demonstrated fast separations and satisfactory resolution of target analytes within a short time frame.
Article
Engineering, Environmental
Bi-Cun Jiang, Ye-Chao Tian, Ai -Min Li, Yu-Ze Han, Ze-Tao Wu, Chang Lu, Hai-Ou Song, Rong Ji, Wen-Tao Li, Gregory V. Korshin
Summary: Electrochemical oxidation (EO) is an effective method for treating dissolved organic matter (DOM) in landfill leachate. The use of nonactive boron-doped diamond (BDD) anode has demonstrated the best performance for DOM oxidation. The decrease of Abs420 can be used as an indicator of the shift from the humic acid-like fraction (HA) to the proteinaceous biopolymer fraction (BP) during the EO treatment with BDD anode.
Article
Environmental Sciences
Wen-Xiang Ji, Ye-Chao Tian, Min-Hui Cai, Bi-Cun Jiang, Shi Cheng, Yan Li, Qing Zhou, Bo-Qiang Li, Bai-Yang Chen, Xing Zheng, Wen-Tao Li, Ai-Min Li
Summary: Accurate quantification of dissolved organic nitrogen (DON) has been a challenge. In this study, a direct method called size exclusion chromatography coupled with an organic nitrogen detector (SEC-OND) was developed, and the operating conditions were optimized. The SEC-OND method could accurately and conveniently quantify DON and dissolved inorganic nitrogen (DIN) species in water samples such as river water, lake water, wastewater, groundwater, and landfill leachate.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Engineering, Environmental
Min-Hui Cai, Ye-Chao Tian, Ai-Min Li, Yan Li, Yu-Ze Han, Wen-Xiang Ji, Qing Zhou, Jun Li, Wen-Tao Li
Summary: This study characterized the changes in spectral features and molecular weight of dissolved organic matter (DOM) in wastewater treatment plants (WWTPs) using size exclusion chromatography with a diode array detector, a fluorescence detector, and an organic carbon detector. The analysis showed that certain components within the DOM had a wide range of molecular weights, indicating their coherence across samples. The study also revealed that the degradation of proteinaceous and polysaccharide-like biopolymers contributed to the decreases in dissolved organic carbon and fluorescence intensity during the anaerobic process. Additionally, the formation of humic acid-like fluorophores was associated with carbohydrate metabolism.
Article
Engineering, Environmental
Kangying Guo, Zhining Wang, Ji Wu, Wentao Li, Beibei Liu, Qinyan Yue, Yue Gao, Baoyu Gao
Summary: This study investigates the application of a novel polyaluminum titanium composite coagulant (PATC) in lake water treatment. Results show that PATC is more effective in removing organic matters, especially low molecular weight (LMW) substances, compared to traditional coagulants polyaluminium chloride (PAC) and polytitanium chloride (PTC). The mechanism of LMW substance removal by PATC is mainly through the adsorption of amorphous hydrolysates. The control performance of the three coagulants on membrane fouling is consistent with their organic removal efficiency, indicating that improving the removal efficiency of organic substances, especially LMW components, is crucial in alleviating membrane fouling.
ACS ES&T ENGINEERING
(2023)
Article
Engineering, Environmental
Ye-Chao Tian, Wen-Xiang Ji, Yu-Ze Han, Ze-Tao Wu, Hai-Ou Song, Ai-Min Li, Wen-Tao Li
Summary: This study investigates the removal of dissolved organic matter (DOM) in reverse osmosis concentrated landfill leachate (ROCLL) using electrochemical oxidation (EO) and response surface methodology (RSM). The study finds that the BDD film anode is the most effective in removing DOM, and pH is the key factor in enhancing the removal of all DOM fractions. Acidification pretreatment can remove a significant portion of certain DOM fractions. The removal kinetics of DOM fractions are controlled by charge transfer process and mass transport process.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Qimeng Li, Xiaoguang Xu, Wentao Li, Guoxiang Wang
Summary: In this study, the Cu(II) binding of different cellular organic matter (COM) subfractions was investigated using 2DCoS, hetero-2DCoS, and moving-window 2DCoS analysis. It was found that each subfraction could interact with Cu(II) through diverse functional moieties, and carboxylic, aliphatic, aryl, and phenolic groups were the basic units of COM chromophores. These findings contribute to our understanding of Cu(II) complexes and metal-organic complexes in aquatic systems.
Article
Engineering, Environmental
Min -Hui Cai, Ye -Chao Tian, Ai-Min Li, Yan Li, Yu-Ze Han, Jun Li, Hong-Fang Sun, Xin Wang, Qing Zhou, Wen-Tao Li
Summary: Co-metabolism with ethanol or sodium acetate as co-substrates was applied to improve the biological degradation of refractory dissolved organic matter (DOM) in semi-coking wastewater. The addition of co-substrates improved COD removal efficiency and biodegradation rate. Co-metabolism triggered a shift in microbial community structure and metabolic functions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(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)