Review
Engineering, Environmental
Pradip Jadhao, Ankur Khare, Mahendra Patil, Asirvatham Ramesh Kumar
Summary: Researchers have explored electrokinetic remediation (EKR) for two decades and recently discovered its integration with persulfate-based advanced oxidation as an effective method for soil remediation. However, research on the challenges and limitations of this technique is limited. This review summarizes bench-scale studies of EKR-PS techniques, emphasizing the importance of updating our understanding of this technique for field-level application in the remediation of hydrophobic organic contaminants (HOCs) in low-permeability soils. Future research directions are also discussed.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Jianhua Qu, Ruixin Liu, Xuewei Bi, Zhuoran Li, Kaige Li, Qi Hu, Xinru Zhang, Guangshan Zhang, Shouyi Ma, Ying Zhang
Summary: The microwave-activated persulfate system was proposed for remediation of organochlorine pesticide contaminated soil. Under suitable conditions, this system could effectively degrade atrazine and showed high tolerance to co-existing substances. Additionally, organic substance content favored the degradation of pesticides in soil.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Marzieh Shojaei, Naveen Kumar, Suparada Chaobol, Ke Wu, Michelle Crimi, Jennifer Guelfo
Summary: The study demonstrates that persulfate oxidation has the potential to convert total PFASs in impacted soils into simpler and more recoverable PFAAs, leading to higher leaching rates of total PFASs. Additionally, after persulfate treatment, the remaining PFAS precursors in the soil were mostly cationic and zwitterionic substances. Treating soils with persulfate may be an effective remediation technique.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Yunmei Wei, Shuang Chen, Tingting Ren, Lianying Chen, Yuanyuan Liu, Junmin Gao, Yunyi Li
Summary: The study demonstrates the effectiveness of thermally activated PS oxidation technique for cyanide elimination from polluted soil, with the two-step oxidation process being more effective for the removal of iron-cyanide complexes. The presence of dissolved soil components increases PS consumption, while SO4 center dot- and HO center dot are identified as the principal reactive radicals responsible for Fe-CN degradation.
Review
Engineering, Environmental
Yixin Cao, Xingzhong Yuan, Yanlan Zhao, Hou Wang
Summary: The accumulation of multiple organic pollutants in the soil poses a huge threat to ecological systems and human health. Iron-based catalysts, known for their environmental friendliness, wide applicability, and low cost, are commonly used in sulfate radicals-based advanced oxidation processes for soil remediation. This paper focuses on the progress of Fe-based catalysts in the treatment of organically contaminated soil using advanced oxidation processes. It discusses the activation process of persulfate and the generation of free radicals for soil remediation. Additionally, it explores the changes in physicochemical properties of soil after treatment and investigates the challenges associated with the use of Fe-based catalysts in soil remediation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Wei Zhang, Heng Li, Siqiang Xiao, Jianfei Wu, Chuanhu Wang, Xiaobin Liu, Qingbiao Li, Yanmei Zheng
Summary: Controllable delivery of PS and enhancement of oxidative availability of pollutants are crucial in the in-situ oxidative remediation of low-permeability PAHs contaminated soil. This study proposed the coupling of Tween 80 solubilization enhanced oxidation of PHE under electrokinetic remediation. The results showed that electrokinetic delivery of Tween 80 and PS achieved a synergistic effect, leading to significantly increased removal rates of PHE compared to traditional electrokinetic remediation or single enhanced technology. The EPR spectrum indicated that SO4.- and OH. were responsible for the degradation of PHE.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Environmental Sciences
Zhenxia Wang, Jiuhao Song, Wenyi Yuan, Yi Li, Naijin Wu, Xiang Li, Liming Rong, Haijian Wang, Ji Zhang, Wenxia Wei, Peizhong Li
Summary: This study quantitatively monitored the potential corrosion degree of standard iron flakes under different conditions using activated persulfate (PS) oxidation technology. The results showed a positive correlation between oxidizer dosage and corrosion risk, and the corrosion process was divided into three stages. The findings suggest controlling the chemical dosage and allowing for a natural recovery period after remediation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Shuyu Liu, Chunyun Gu, Jiaxin Zhang, Chaoyi Luo, Xun Rong, Gangsen Yue, Hanyu Liu, Jing Wen, Jie Ma
Summary: In this study, unactivated persulfate (PS) was found to degrade 1,2,3-TCP and generate reactive oxidation species (ROS) without an external activation system. Among the common oxidants tested, only unactivated PS was effective in degrading 1,2,3-TCP in both pure water and natural water samples. The degradation rate of 1,2,3-TCP increased with increasing PS concentration and temperature.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yue Gao, Yanan Xue, Jing Ji, Kai Zhen, Xuejiao Tang, Peng Zhang, Cuiping Wang, Hongwen Sun
Summary: The remediation of industrial site soil using Fe2+ chelated with sodium citrate activated persulfate oxidation (PS/Fe2+/SC) was investigated. The study found that the maximum removal rates of sigma 16 PAHs in Nanjing site soil (NJS) and Hefei site soil (HFS) were 73.6% and 85.8% after the second-stage oxidation, respectively. However, the efficiency of PAHs degradation did not increase in the later oxidation stages due to the presence of high crystalline Fe mineral phases in both NJS and HFS, which hindered the Fe2+/Fe3+ recycle and inhibited the production of reactive oxygen species during the remediation process.
Article
Environmental Sciences
Yan Song, Cheng Lei, Kun Yang, Daohui Lin
Summary: The study combined electrokinetic and iron-carbon material for soil remediation, finding that the EK-Fe/C system showed a high efficiency in removing PCB28, primarily due to the enhanced Fenton reaction by EK and Fe/C. Other oxidation and reduction processes also contributed to the removal of PCB28 in the EK-Fe/C system.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Dan Wu, Hongshuai Kan, Ying Zhang, Tiecheng Wang, Guangzhou Qu, Peng Zhang, Hanzhong Jia, Hongwen Sun
Summary: The study demonstrated that Fe3O4/MW/PS system significantly increased the removal of pyrene in soil, with a higher degradation efficiency compared to other systems. Increasing Fe3O4 dosage, PS concentration, MW temperature, and soil moisture content contributed to better pyrene degradation.
Article
Engineering, Environmental
Yunlong Li, Liguo Jiang
Summary: The study investigated the efficiency of different surfactants in treating crude oil-contaminated low-permeability soil, with Tween 80 showing the highest removal rate.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Sajad Adhami, Ahmad Jamshidi-Zanjani, Ahmad Khodadadi Darban
Summary: This study investigated the combined use of electrokinetic and Fenton methods to remediate phenanthrene contamination in soil, and found that with the proper oxidizing agent and catalyst, the process efficiency can be significantly improved. The experimental results showed that under suitable conditions, the electrokinetic-Fenton method can effectively remove organic pollutants from soil.
Article
Environmental Sciences
Mingzhu Zhou, Qiuhua Li, Xia Wang, Qiao Huang, Long Cang
Summary: PMS showed higher removal efficiencies for PAHs contaminated soil compared to PS, indicating its superior oxidation capacity. The use of enhancements increased the removal efficiency for PAHs by 0.33 to 2.10 times, with the highest efficiency achieved at a fixed catholyte pH of 4.
Article
Engineering, Environmental
Alicia Checa-Fernandez, Aurora Santos, Leandro O. Conte, Arturo Romero, Carmen M. Dominguez
Summary: This study utilizes ultrasound coupled with NaOH to treat soil contamination by HOCs for enhanced remediation. The results indicate that ultrasound facilitates the breakdown of soil aggregates, accelerating the desorption and oxidation of HOCs, leading to improved degradation efficiency of pollutants.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Marine
Diana Arreola, Julian Hernandez, Valeria Vesco, Krishna R. Reddy
Summary: The United States Environmental Protection Agency (USEPA) has developed the Dredged Material Decision Tool (DMDT) to quantify environmental, economic, and social considerations of using dredged material for beneficial purposes. This study demonstrates the applicability of the DMDT in three candidate projects and highlights its value in facilitating the evaluation and selection of the best beneficial reuse alternative.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Review
Engineering, Environmental
Ashutosh Kumar, Sarat Kumar Das, Lohitkumar Nainegali, Krishna R. Reddy
Summary: Coal production leads to the generation of extensive coal overburden (OB), resulting in groundwater and soil contamination, land degradation, and biodiversity loss. This paper conducts a systematic bibliometric analysis to analyze the trend topics related to OB generation and management worldwide. Traditional reclamation techniques, the benefits and limitations of biological remediation methods, and the advantages of vegetation as a sustainable approach for OB management are summarized. Challenges associated with vegetation and future research needs are identified. The study also discusses the mechanisms of dump slope stability enhancement and methods to estimate root cohesion during the vegetation process.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Construction & Building Technology
Xian-Lei Fu, Heng Zhuang, Krishna R. Reddy, Ning-Jun Jiang, Yan-Jun Du
Summary: This study developed a novel composite polymer-amended bentonite for environmental containment applications. Laboratory experiments were conducted to evaluate the properties of the polymer-amended bentonite, including free swell index, liquid limit, hydraulic conductivity, rheological properties, and polymer stability. The results showed that the polymer-amended bentonite with a PAC-HPMC mass ratio of 7 had the lowest hydraulic conductivity and stronger hydrogen bonding strength. The yield stress of the polymer-amended bentonite was found to be a good indicator for evaluating polymer stability and the effectiveness of the engineered barrier material.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Environmental Sciences
Sukran Gizem Alpaydin, Yeliz Yukselen-Aksoy
Summary: The effects of tincal and ulexite additives on the shear strength behavior of SBMs at 80 degrees C and room temperature were investigated. The results showed that the addition of boron increased the shear strength of SBMs, especially for 20% SBMs at high temperature. Tincal and ulexite can be used to improve the shear strength of SBMs at high temperatures.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Environmental Sciences
Ashutosh Kumar, Sarat Kumar Das, Lohitkumar Nainegali, Krishna R. Reddy
Summary: This paper discusses the effect of organic amendment on the growth characteristics and root distribution of native grass Dendrocalamus strictus species in India. The results show that the chosen grass can survive on the coalmine overburden dumps with suitable external amendment and exhibit a well-developed root system and higher root reinforcement.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2023)
Review
Green & Sustainable Science & Technology
Krishna R. Reddy, Valeria Kandou, Rachel Havrelock, Ahmed Rachid El-Khattabi, Teresa Cordova, Matthew D. Wilson, Braeden Nelson, Citlalli Trujillo
Summary: Water reuse is a practical solution to address water scarcity by augmenting water supplies. However, implementing water reuse can be challenging due to infrastructure requirements, economic issues, and social acceptance.
Article
Environmental Sciences
Anshumali Mishra, Sarat Kumar Das, Krishna R. R. Reddy
Summary: The performance of cement mortar and concrete incorporating 100% coalmine overburden (OB) as aggregate was evaluated through carbonation and rapid chloride penetration tests. The results showed that OB can be a good replacement for natural aggregate in construction materials, and the performance under corrosion testing was comparable to river sand.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Engineering, Environmental
Bhoomi A. Kamdar, Chandresh H. Solanki, Krishna R. Reddy
Summary: This research utilizes an organic binder to remediate lead-contaminated soil using the stabilization/solidification technique, avoiding the environmental consequences of inorganic binders like cement. The study synthesizes biochar through slow pyrolysis of moringa seed cake or de-oiled cake and investigates its physicochemical characteristics, revealing its potential for lead adsorption due to high pH and abundant surface functional groups. The effects of biochar content and curing time on soil stabilization are evaluated, showing that 10% biochar and 28 days of curing effectively reduce lead leachability and improve soil strength and pH.
JOURNAL OF ENVIRONMENTAL ENGINEERING
(2023)
Article
Engineering, Geological
Xian-Lei Fu, Zhe-Yuan Jiang, Krishna R. Reddy, Kunlin Ruan, Yan-Jun Du
Summary: The effects of organic acid-laden groundwater exposure on the hydraulic conductivity and microscopic characteristics of sand-bentonite backfill in slurry trench cutoff walls were comprehensively assessed.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2023)
Article
Construction & Building Technology
Anshumali Mishra, Sarat Kumar Das, Krishna R. Reddy
Summary: This study investigates the potential of coal mine overburden (OB) from opencast mine dumps as a sustainable alternative to natural aggregate. The study evaluates the microproperties (mineralogy, morphology, and chemistry) and macroproperties (alkali-aggregate reaction, soundness, durability, flow value, ultrasonic pulse velocity, and mechanical properties) of crushed OB, OB-based mortar, and concrete. The results show that OB is mineralogically more stable, mechanically comparable, and durable than other natural aggregate alternatives. There are no hazardous effects on soil and water quality due to leaching. OB-based mortar and concrete exhibit good corrosion resistance.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2023)
Article
Construction & Building Technology
Anshumali Mishra, Sarat Kumar Das, Krishna R. Reddy
Summary: Due to the global sand crisis, the use of natural sand is no longer sustainable. Coal mine overburden sand and crushed granite sand are two environmentally friendly alternatives. This study compares their life cycle assessments and finds that OBS causes less environmental burden compared to M-Sand, with significant reductions in impacts on human health, ecosystem quality, climate change, and resource depletion.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Engineering, Geological
Ashutosh Kumar, Sarat Kumar Das, Lohitkumar Nainegali, K. V. N. S. Raviteja, Krishna R. Reddy
Summary: Coal mine waste rocks are disposed of in non-engineered dumps with a height of 100-120 m to reduce space utilization. However, these dumps are prone to slope failures due to the loose, cohesionless material and high heterogeneity. This study evaluates the stability of a typical dump configuration in Jharkhand, India and investigates the influence of slope geometry and material heterogeneity on slope stability through numerical analysis and parametric studies. Recommendations for remediation methods, including modified slope geometry and benches, are provided to achieve the desired safety factor.
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Bhoomi A. Kamdar, Chandresh H. Solanki, Krishna R. Reddy
Summary: This study investigated the stabilization and solidification effect of hardwood biochar on soil contaminated with high concentrations of lead. The results showed that the TCLP lead levels decreased with increasing biochar dosage and curing time. Adding 5 wt.% biochar could achieve an immobilization efficiency of 88% after 28 days of curing. X-ray diffraction and scanning electron microscopy analyses indicated that physical adsorption and lead precipitation were the underlying mechanisms for Pb immobilization.
JOURNAL OF HAZARDOUS TOXIC AND RADIOACTIVE WASTE
(2023)
Article
Engineering, Environmental
Sumaja Kolli, Pradeep Kumar Dammala, Ahsan Ul Haq, Krishna R. R. Reddy
Summary: This study proposes a method to solve the problems of marble slurry disposal and sand migration in Rajasthan, India. By treating the discarded marble slurry and sand, a crust is formed to stabilize the sand dunes and reduce wind-led soil erosion by up to 70%. However, further experiments and field tests are needed to determine the optimal mixture of marble slurry and sand.
JOURNAL OF HAZARDOUS TOXIC AND RADIOACTIVE WASTE
(2023)
Proceedings Paper
Construction & Building Technology
Sukran Gizem Alpaydin, Yeliz Yukselen-Aksoy
Summary: This study investigated the volumetric deformation behavior of sand-bentonite mixtures containing 10% bentonite under room temperature and thermal cycles. Ulexite, a boron mineral known for its high temperature resistance and low thermal expansion coefficient, was added at rates of 10% and 20% by dry weight. The results showed that the addition of ulexite increased the compression amount at room temperature, while decreasing the swelling amount. However, the total compression amounts were reduced by half when thermal cycles were applied compared to room temperature tests.
5TH INTERNATIONAL CONFERENCE ON NEW DEVELOPMENTS IN SOIL MECHANICS AND GEOTECHNICAL ENGINEERING, ZM 2022
(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)
