Article
Environmental Sciences
J. Vidal, Maria E. Baez, R. Salazar
Summary: This study successfully removed Quinclorac from soil using an electro-kinetic soil washing system (EKSW) and achieved complete degradation and mineralization of the pesticide through electro-oxidation (EO) in the cathodic and anodic wells. This coupled remediation technology is not only effective but also environmentally friendly.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Guangqiang Zhang, Isaac D. D. Tegladza, Yaqi Fan, Hongliang Dai, Mei Wang, Jun Lu
Summary: In this study, multi-dimensional (1D and 2D) models were used to investigate the coupled relationship among H+ and OH- mass transfer, electric field, and porous fluid flow in soil electro-kinetic remediation (EKR). The results showed that the characteristics of pH front and pH profile were dominated by electric field, mass transfer, and porous fluid flow. The conductivity rise and electric field distribution variations were quantified and found to be caused by the H+ and OH- mass transfer.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Chemistry, Inorganic & Nuclear
Sara S. Mahrous, Emad H. Borai, Muhammad S. Mansy
Summary: In this study, a strippable polymeric-gel solution was synthesized and characterized for the decontamination of surfaces contaminated with 137Cs and 60Co. The gel solution was based on a water-soluble polymer (PVA), plasticizing agent (glycerol), and chelating agent (8-Hydroxyquinoline). Decontamination efficiency of up to 95% was achieved for both radionuclides on glass and PVC surfaces after 24 hours of contact time. The results suggest that the decontamination process involves both chemical and physical mechanisms.
APPLIED RADIATION AND ISOTOPES
(2023)
Article
Environmental Sciences
Jauharah Khudzari, Shin-ya Fukuda, Yoshihiro Shiraiwa, Koji Iwamoto
Summary: This study is the first to describe the kinetic properties of Cs-137 uptake by the microalga Vacuoliviride crystalliferum and examine the effects of potassium on its absorption. Results showed that V. crystalliferum can remove up to 90% of 157 nM 137Cs within an hour, under normal temperature and light conditions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Sudabeh Pourfadakari, Sahand Jorfi, Aliakbar Roudbari, Allahbakhsh Javid, Seyedeh Solmaz Talebi, Seid Kamal Ghadiri, Nader Yousefi
Summary: This study investigated the modification of soil contaminated with phenanthrene by electro-kinetic remediation using response surface methodology. The experiment identified the optimal conditions for PHE removal and found that a first-order kinetic model was the best fit for the process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Computer Science, Interdisciplinary Applications
Khurram Javid, Muhammad Riaz, Yu-Ming Chu, M. Ijaz Khan, Sami Ullah Khan, S. Kadry
Summary: This study investigates the transport of biological fluids through non-uniform channels and the hydrodynamics of cilia under an applied axial electric field. Mathematical formulations and numerical simulations reveal the significant impact of non-uniform parameters on fluid dynamics, providing insights into complex transportation processes in medical science.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2021)
Article
Ecology
Roman Bezhenar, Kyeong Ok Kim, Vladimir Maderich, Govert de With, Kyung Tae Jung
Summary: The model presents a multi-compartment kinetic-allometric approach for studying the accumulation of radionuclides in fish, considering the contribution of different tissues and allometry. The model successfully describes the dynamics of assimilation and elimination of various radionuclides in different tissues and organs, providing better agreement with laboratory experiments than standard models.
Article
Environmental Sciences
Laith Hamdan Hawal, Ali Omran Al-Sulttani
Summary: The study focuses on remediating arsenic-contaminated soil using electro-kinetic techniques with various enhanced conditions. Tests were conducted with different operating conditions and it was found that decreasing the pH of the electrodes solution increased the elimination capacity of arsenic. Mixing a cyclodextrin solution with the soil enhanced the solubility and desorption of arsenic, resulting in a higher elimination capacity. Pomegranate peels were found to be an effective adsorbent for preventing arsenic from returning to the soil during treatment.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Review
Environmental Sciences
Ding Han, Xingyi Wu, Rui Li, Xianqiang Tang, Shangbin Xiao, Miklas Scholz
Summary: Electro-kinetic remediation is an environmentally friendly technology that can migrate and remove pollutants from soil and sediment. However, challenges such as incomplete separation of pollutants, variations in physico-chemical properties of soil/sediment, and difficulties in in situ practice need to be addressed for effective implementation.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Environmental Sciences
Tsubasa Ikenoue, Hikari Shimadera, Takahiro Nakanishi, Akira Kondo
Summary: The Fukushima Daiichi Nuclear Power Plant accident resulted in the accumulation of Cs-137 in coastal sediment. The supply of Cs-137 from rivers to the ocean has an impact on the long-term fate of Cs-137 in coastal sediment. Human activities, such as decontamination work and agriculture, slightly reduce the outflow and supply of Cs-137 from rivers. The estimated Cs-137 supply from rivers to the coastal sediment corresponds to 11-36% of the total Cs-137 in the early phase of the accident, highlighting its importance.
Article
Engineering, Environmental
Sa Wang, Zhiguo Shao, Wendi Xu, Xiaoshan Zhao
Summary: Electrical stimulation during electro-bioremediation enhances the biodegradation of poly-cyclic aromatic hydrocarbons (PAHs) in soil. The effective current intensity and polarity reversal frequency were found to be important factors in promoting the activity of functional microflora and improving PAH degradation. Increasing the polarity reversal frequency and optimizing soil physicochemical properties can enhance PAH degradation efficiency.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Water Resources
Wasan Muslim, Salam Al-Nasri, Talib M. Albayati, Issam Salih
Summary: Operators must pay attention to the radiation hazards from nuclear weapons. This study investigated batch adsorption experiments to remove the radioactive isotope Cs-137 from real radioactive wastewater. Attapulgite natural clay mineral was characterized and used as an adsorbent in a batch adsorption system. After 2 hours, equilibrium was reached with a 97% removal efficiency of Cs-137 for attapulgite. The kinetics of Cs-137 adsorption on the attapulgite clay surface were evaluated and the pseudo-second-order kinetic model provided an excellent fit, indicating attapulgite as the best adsorption medium.
WATER PRACTICE AND TECHNOLOGY
(2023)
Article
Nuclear Science & Technology
B. Setiawan, D. Iskandar, G. Nurliati, H. Sriwahyuni, M. Mirawaty, P. A. Artiani, K. Heriyanto, N. E. Ekaningrum, Y. Purwanto, S. Sumarbagiono
Summary: After finding Cs-137 contamination in South Tangerang City, decontamination and management of the soil were carried out to reduce exposure dose to 0.3-0.75Sv/h. The contaminated soil was then sent to an interim storage facility for further treatment. By studying various management methods, a suitable method for treating the contaminated soil in South Tangerang City was identified.
Article
Environmental Sciences
Xinyu Mao, Xiaosan Jiang, Shaoyun Wu, Lina Chen, Huaizhi Yu, Xiaohou Shao
Summary: This study conducted lab scale EKR experiments with enhanced strategies of non-uniform electric intensity, polarity reversal, and electrolyte conditioning to alleviate pH polarization of sediments and increase Pb removal. Optimized operating parameters resulted in higher extraction efficiencies of Pb, especially when using enhanced EKR strategies simultaneously. The remediation duration, energy utilization efficiency, and energy cost of EKR with optimal enhanced scheme to remove all sediment Pb were acceptable for full-scale applications.
FRESENIUS ENVIRONMENTAL BULLETIN
(2021)
Proceedings Paper
Computer Science, Theory & Methods
Sathyamoorthy Dhayalan, A. Harshith Kumar, Pranav Johri, C. C. Reddy
Summary: The research focuses on the performance analysis of a HVDC cable in relation to the influence of surrounding soil on electro-thermal stresses experienced by the insulation. Different soil thermal properties were simulated under load cycles with polarity reversal based on Cigre standard TB 496, aiming to understand the impact of geographical location on cable installation.
INTERNATIONAL CONFERENCE ON ELECTRICAL, COMPUTER AND ENERGY TECHNOLOGIES (ICECET 2021)
(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)