Article
Engineering, Chemical
Yixin Zhang, Erzhuo Zhao, Xinxin Cui, Wei Zhu, Xia Han, Gang Yu, Yujue Wang
Summary: The integrated EC-EP process effectively removes up to 95% of TOC from FFW, meeting wastewater discharge standards with low energy consumption. This demonstrates a cost-effective method for the removal of organic compounds in FFW.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Oscar M. Cornejo, Jose L. Nava
Summary: This study focused on the degradation of antibiotic levofloxacin (LVN) using the electro-peroxone (E-peroxone) process in a lab-scale flow plant operated in recirculation mode. The research found that the E-peroxone method achieved 63% mineralization of LVN under specific conditions, with factors such as current density, volumetric electrolyte flow rate, and initial concentration of LVN influencing the mineralization efficiency. Oxalic, oxamic, and tartaric acids were identified as the main final products of LVN mineralization during the electrolysis process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Mahshid Mortazavi, Shikha Garg, T. David Waite
Summary: In this study, we investigated the effects of H2O2 dosage, H2O2 dosing method, and electron-rich dissolved organic matter (DOM) on the peroxone (O3/H2O2) process. We found that the dosing method of H2O2 had a significant impact on the removal of oxalate (OA), with continuous injection of 1 mM H2O2 achieving nearly 100% OA removal after 1 hour. Additionally, the presence of high concentrations of humic acids (HA) enhanced the oxidation rate of OA by ozone alone. Based on our findings, we developed a mathematical model that predicts the generation of center dot OH and OA oxidation in the peroxone process, which can be used to optimize operating conditions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Environmental
Leopold Dobelle, Seungkyeum Kim, Axl X. LeVan, Hugo Leandri, Michael R. Hoffmann, Clement A. Cid
Summary: The uncoupled electro-peroxone system effectively treats synthetic graywater, reducing initial contaminants by up to 95% after 90 minutes of treatment, making the effluent suitable for discharge and nonpotable applications. Recycling a portion of effluent back into the system reduces water consumption and ensures continued effectiveness over multiple cycles. This two-stage system shows potential for decentralized graywater treatment in water-sensitive areas.
ACS ES&T ENGINEERING
(2021)
Review
Engineering, Environmental
Yong Liu, Xiaobin Yu, Mohammadreza Kamali, Xi Zhang, Sara Feijoo, S. M. Al-Salem, Raf Dewil, Lise Appels
Summary: This review summarizes the desirable physicochemical properties of biochar for its application as a catalyst or electrode material in electrochemical advanced oxidation processes. It also presents the mechanisms for electrocatalytic in-situ generation and activation of H2O2 by biochar in these processes, providing deeper insights into the degradation of organic pollutants. Additionally, modification strategies to improve the performance of biochar in these processes are addressed, along with the remaining challenges and future perspectives.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Shaoda Huang, Bingyan Zhang, Huimin Sun, Hongyin Hu, Jinyan Wang, Fang Duan, Han Zhu, Mingliang Du, Shuanglong Lu
Summary: We developed a series of single atom catalysts anchored on bipyridine-rich COFs. The optimal Py-Bpy-COF-Zn shows the highest selectivity of 99.1% and excellent stability in H2O2 production via oxygen reduction, attributed to its high *OOH dissociation barrier. As a proof of concept, it acts as a cathodic catalyst in a homemade Zn-air battery and enables efficient wastewater treatment.
CHEMICAL COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Qing Yang, Haiou Huang, Kuiling Li, Yujue Wang, Jun Wang, Xiaoyuan Zhang
Summary: This study investigated an electro-peroxone filtration (EPF) process for enhanced removal of pharmaceuticals and personal care products (PPCPs) through water-permeable electrodes. The EPF process demonstrated a higher removal efficiency compared to traditional peroxone filtration, making it a promising method for removing PPCPs from contaminated water.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Yudong Xue, Yunting Wang, Zhenhua Pan, Kazuhiro Sayama
Summary: This paper reviews recent developments in EC/PEC H2O2 production through water oxidation, including fundamental aspects, benchmark activity evaluation, material/catalyst selection, and strategies for increasing selectivity, efficiency, and accumulation. The challenges and outlook for water oxidation in H2O2 production are also discussed, with a focus on device-level development, accumulation and stability, and industrial applications. The review aims to inspire further research in improving EC/PEC H2O2 production.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Multidisciplinary
Yan Yu, Meng Pan, Jinrong Peng, Danrong Hu, Ying Hao, Zhiyong Qian
Summary: This review summarizes the advances in the application of hydrogen peroxide (H2O2) sensors in cell detection, including enzyme-based, nanozyme-based, and various materials-based sensors. The review also discusses the enrichment of H2O2 in the tumor microenvironment and the challenges and future perspectives in the application of H2O2 sensors.
CHINESE CHEMICAL LETTERS
(2022)
Article
Engineering, Environmental
Deysi Amado-Pina, Gabriela Roa-Morales, Mayela Molina-Mendieta, Patricia Balderas-Hernandez, Rubi Romero, Carlos E. Barrera Diaz, Reyna Natividad
Summary: An electro-peroxone (EP) process was conducted using a BDD electrode reactor to mineralize 4-Chlorophenol (4-CPh). The efficiency of EP was compared with ozonation (O-3) and electro-oxidation (EO) processes. The results showed that EP had the highest oxidation power and could completely remove TOC and eliminate phytotoxicity. Analysis of by-products and ion concentrations provided insights into the reaction pathway for the mineralization of 4-CPh.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Sherin Rison, Rijo Rajeev, Vinay S. Bhat, Agnus T. Mathews, Anitha Varghese, Gurumurthy Hegde
Summary: Electrochemically deposited ZnO nanoparticles on a pencil graphite electrode coated with graphene provide a highly conductive and selective electrochemical sensing electrode for cortisol estimation. Various spectroscopic and microscopic techniques were used for surface morphological analysis, while XRD and FTIR were employed for structural characterization. The DPV analysis showed a linear range of 5 x 10(-10) M - 115 x 10(-10) M with a low limit of detection value of 0.15 nM, demonstrating excellent functionality for salivary cortisol determination at low concentrations.
Article
Environmental Sciences
Shuning Chen, Kajia Wei, Yujue Wang, Jun Wang, Haiou Huang, Xia Huang, Bruce E. Logan, Xiaoyuan Zhang
Summary: The Bio-E-Peroxone system, which combines chemical and bioelectrochemical processes, demonstrated significant acceleration in pollutant degradation by generating H2O2 on the cathode and using ozone-enriched air. This integrated system showed superior efficiency compared to traditional ozonation or electrolysis methods, making it a promising approach for both wastewater treatment and electricity generation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Huijiao Wang, Linzhao Sun, Kai Yan, Jianbing Wang, Chunrong Wang, Gang Yu, Yujue Wang
Summary: The EP process accelerates ozone decomposition by electrochemically generating hydrogen peroxide, significantly reducing the time required for micropollutant abatement. Pretreatment processes can remove DOC and ammonia from raw water, leading to improved micropollutant abatement efficiency and reduced energy consumption during the EP treatment.
Article
Chemistry, Physical
Stephan Mrusek, Patrick Preuster, Karsten Mueller, Andreas Bosmann, Peter Wasserscheid
Summary: The combination of hydrogen release from a LOHC system with EHC provides three advantages: reducing hydrogen pressure for accelerated release, compressing released hydrogen for high value, and purifying hydrogen by proton transport. This technology is suitable for producing compressed hydrogen for fuel cell vehicles at future hydrogen filling stations using LOHC.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Maryam Hosseinikhah, Nader Mokhtarani
Summary: With the development of cities and population growth, municipal waste management has become increasingly important. This study introduces the novel advanced oxidation process PEP for treating leachate, showing significant efficiency in removing COD, TOC, and color.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Joao M. M. Henrique, Julia Isidro, Cristina Saez, Ruben Lopez-Vizcaino, Angel Yustres, Vicente Navarro, Elisama Dos Santos, Manuel A. Rodrigo
Summary: This paper focuses on evaluating the mobility of four hexachlorocyclohexane (HCH) isomers using soil vapor extraction (SVE) combined with direct electrokinetic (EK) treatment. The results showed that SVE was highly efficient, removing nearly 70% of the four HCH isomers in the 15-day tests. Electrokinetics facilitated the transport of HCH to the cathode through various electrochemical processes, which were accurately modeled using a 1-D transport equation. Increasing the electric field resulted in enhanced pollutant transport, although 15 days was insufficient for efficient transportation of pollutants towards the cathode. The loss of water content near the cathode highlighted the need for electrokinetic flushing technologies instead of simple direct electrokinetics. Overall, no significant differences were observed in the removal of the four HCH isomers between SVE and EK processes.
Article
Environmental Sciences
Victor Pertegal, Engracia Lacasa, Pablo Canizares, Manuel A. Rodrigo, Cristina Saez
Summary: The composition and concentration of airborne microorganisms in hospital indoor air exceed recommendations from WHO. Improving air-conditioning designs can help restrict hospital-acquired infections. Different bioaerosol sources significantly influence airborne bacteria concentrations, and ventilation airflow affects bioaerosol distribution.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Chemical
Andrea N. Arias, Inalmar D. Barbosa Segundo, Elisama V. dos Santos, C. A. Martinez-Huitle, Justo Lobato, Manuel A. Rodrigo
Summary: This work demonstrates that treating hydrogen sulphide in gas phase using an electrochemical cell equipped with a MEA is a feasible option, as it efficiently transforms the pollutant into solid sulphur and sulfuric oxide. The current density and gas flowrate have significant effects on the removal of hydrogen sulphide and the formation of different species. Electrochemical characterization shows that the MEA does not deteriorate during continuous operation tests and the energy consumption for H2S removal ranges from 18 to 87 Wh gS-1.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Electrochemistry
Jorge A. Banda-Aleman, Michelle Camacho-Callejas, Maria L. Salazar-Lopez, Irma Robles, Gustavo Acosta-Santoyo, Josue D. Garcia-Espinoza, Francisco J. Rodriguez-Valadez, Juan Manriquez, Luis A. Godinez
Summary: Carbon felt electrodes (CF) were modified with different amounts of Fe0 (C|Fe) using a potentiostatic electrodeposition technique. The materials were characterized and analyzed using SEM, CV and chemical titration experiments. By polarizing the Fe modified CF substrates at different potential values, the electro-Fenton production of center dot OH radicals can be promoted, making them potentially suitable for single electrode EF batch reactors.
ELECTROCHIMICA ACTA
(2023)
Article
Environmental Sciences
P. Verlicchi, V. Grillini, E. Lacasa, E. Archer, P. Krzeminski, A. I. Gomes, V. J. P. Vilar, M. A. Rodrigo, J. Gabler, L. Schafer
Summary: Organic and microbial contaminants of emerging concern (CECs) are a major concern in reclaimed water reuse projects. This study presents a new methodology for selecting representative CECs and evaluating the performance of a polishing treatment. It includes criteria such as occurrence, persistence, bioaccumulation, and toxicity to rank and select the most representative CECs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Chemistry, Physical
Elisama Vieira dos Santos, Carlos A. Martinez-Huitle, Manuel A. Rodrigo
Summary: In recent years, efforts have been made to improve the sustainability of both industrial and environmental processes. The circular economy theory and life cycle assessment tools have led to innovative approaches in electrochemically assisted waste remediation technologies. This opinion-critical review summarizes the recent advancements in the new electro-refinery concept for organic wastes, which aims to obtain valuable compounds or molecules from pollutants instead of simply mineralizing them.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Electrochemistry
L. F. Leon-Fernandez, A. Caballero-Ortiz, O. Martinez-Mora, J. Fransaer, X. Dominguez-Benetton
Summary: The electrochemical reduction of gases is driving the industrial shift towards electrification and decarbonization. In this study, carbon monoxide produced from the electrochemical reduction of CO2 was used for the in-situ reduction of AuCl 4 ions into gold nanoparticles. The efficiency for gold nanoparticle precipitation was improved by manipulating the gas-flow regime and cathode polarization. The mechanism and kinetics of gold recovery and nanoparticle synthesis are described in detail.
ELECTROCHIMICA ACTA
(2023)
Article
Engineering, Chemical
Aline R. Doria, Angela Moratalla, Caio V. S. Almeida, Ronaldo S. Silva, Katlin I. B. Eguiluz, Giancarlo R. Salazar-Banda, Manuel A. Rodrigo, Cristina Saez
Summary: Developing highly selective anode materials for hypochlorite generation in low-concentrated sodium chloride solutions is challenging. In this study, ruthenium-based binary anodes (Ti/RuO2 -Sb2O4 and Ti/RuO2 -TiO2) were synthesized using different heating methods. The anode characteristics and catalytic activity were found to be influenced by the heating method and chemical composition. The Ti/RuO2 -TiO2 anode prepared by laser heating showed the highest electrocatalytic activity for generating hypochlorite from low-concentrated NaCl solutions. This study provides new insights into the preparation of low-cost materials for efficient disinfectant generation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
M. P. Castro, I. F. Mena, M. A. Montiel, J. Gabler, L. Schafer, C. Saez, M. A. Rodrigo
Summary: The production of peroxosulfate species, particularly Caro's acid, using boron-doped diamond electrodes and a 3D printed electrochemical cell has been studied. The effects of temperature, current density, and electrolyte concentration on the production of Caro's acid have been investigated. Lowering the temperature and increasing the current density improved the production of Caro's acid, while higher concentrations of sulfuric acid resulted in higher concentrations of Caro's acid with more unreacted sulfuric acid. The use of divided cells and continuous production mode were also studied.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Luis F. F. Leon-Fernandez, Xochitl Dominguez-Benetton, Jose Villasenor Camacho, Francisco Jesus Fernandez-Morales
Summary: This study demonstrates the viability of dechlorinating 2,4-D, a commonly used commercial herbicide, through cathodic electrocatalysis driven by anodic microbial electrooxidation of sodium acetate. The microbial electrochemical systems (MES) were operated under microbial fuel cell (MFC) or microbial electrolysis cell (MEC) mode. Under MFC mode, a 32% dechlorination rate was achieved after 72 hours, which was further improved to 79% under MEC mode. The biodegradability of the wastewater was also enhanced, with a BOD/COD ratio of 0.135 in MFC and 0.453 in MEC.
ENVIRONMENTAL MICROBIOLOGY REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Omar Martinez-Mora, Kristof Tirez, Filip Beutels, Wilfried Brusten, Luis F. Leon-Fernandez, Jan Fransaer, Xochitl Dominguez-Benetton, Milica Velimirovic
Summary: In this study, the authors proposed a comprehensive approach that combines conventional sizing techniques and innovative single-particle mass spectrometry to investigate Pt-Pd alloy nanoparticle clusters. This approach provides rapid and accurate characterization of the particle size and distribution of Pt-Pd alloy NCs, enhancing our understanding of bimetallic nanoparticle synthesis and facilitating tailored applications for these materials.
Article
Materials Science, Multidisciplinary
Omar Martinez-Mora, Luis F. Leon-Fernandez, Milica Velimirovic, Frank Vanhaecke, Kristof Tirez, Jan Fransaer, Xochitl Dominguez-Benetton
Summary: The development of high-performance electrocatalysts is crucial for improving the performance and commercial viability of direct methanol fuel cells (DMFCs). This study utilized the gas-diffusion electrocrystallization process (GDEx) to synthesize platinum nanoclusters (NCs) stabilized by polyvinylpyrrolidone (PVP). The electrocatalytic activity of the Pt NCs for methanol oxidation was successfully evaluated, with PVP-stabilized GDEx-made Pt NCs demonstrating superior performance due to their porous structure and high effective surface area.
MATERIALS ADVANCES
(2023)
Article
Engineering, Multidisciplinary
Leticia Mirella da Silva, Ismael F. Mena, Miguel A. Montiel, Cristina Saez, Artur J. Motheo, Manuel A. Rodrigo
Summary: This study focuses on the development of a new electrochemical cell for the continuous production of ozone, which can efficiently degrade synthetic waste containing methomyl. The results show that the specially designed electrochemical cell, manufactured using 3D printing, can produce ozone effectively. Activation of ozone with UV light or dosing of hydrogen peroxide can improve the degradation efficiency.
RESULTS IN ENGINEERING
(2023)
Article
Environmental Sciences
Lais Gimenes Vernasqui, Gessica de Oliveira Santiago Santos, Julia Isidro, Taynara Oliveira Silva, Marcos Roberto de Vasconcelos Lanza, Cristina Saez, Neidenei Gomes Ferreira, Manuel Andres Rodrigo Rodrigo
Summary: The use of electrochemically assisted disinfection is an important technology for reclaiming treated wastewater. In this study, a new coating material U-NBDD was evaluated as an electrode and compared to a standard electrode. The results showed that U-NBDD electrode had better disinfection performance than the standard electrode at low current densities, and it could prevent the formation of chlorates and perchlorates.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Environmental Sciences
Josue D. Garcia-Espinoza, Jose Trevino-Resendez, Irma Robles, Gustavo Acosta-Santoyo, Luis A. Godinez
Summary: This review provides a comprehensive perspective of sono-electro-Fenton-related processes applied for real wastewater treatment. It discusses the effectiveness of homogeneous and heterogeneous electro-Fenton approaches, the fundamentals of ultrasound-based processes, and the coupling of the two methods for real wastewater treatment and the effect of process parameters. Sono-electro-Fenton processes substantially increase the treatment efficiency and biodegradability of the wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(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)
