Article
Chemistry, Physical
K. Cwieka, A. Lysik, T. Wejrzanowski, T. Norby, W. Xing
Summary: This paper demonstrates the influence of modifications in microstructure and chemical composition on the electrochemical behavior of cathodes for molten carbonate fuel cells (MCFCs). By designing new three-layer cathode structures, combining porous silver, nickel oxide, and nickel foam layers, it is possible to enhance cell performance, decrease internal resistance, and improve charge transfer and mass transport efficiency.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Hossein Aghajani, Arvin Taghizadeh Tabrizi, Reza Ghorbani, Sahand Behrangi, Monika Stupavska, Nesa Abdian
Summary: Nitrogen-doped graphene foam was synthesized using hydrothermal routes and characterized using XPS. The hydrogen storage capacity of the synthesized material was significantly improved compared to pure graphene.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Patricio Ramirez, Javier Cervera, Saima Nasir, Mubarak Ali, Wolfgang Ensinger, Salvador Mafe
Summary: Electrochemical impedance spectroscopy (EIS) is a valuable tool in membrane science and technology that provides information on the structure and functionality of the membrane. By studying multipore asymmetric membranes with conical pores, it was found that the ionic conduction properties can be modulated by adjusting the electrical interaction between charges on the pore surface and the nanoconfined ionic solution. The membrane's electrical response was found to be influenced by the amplitude and frequency of the external voltage signal, the electrolyte type and concentration, and the solution pH.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Engineering, Environmental
Lei Yao, Qisong Cheng, Ziyi Long, Zhe Chen, Zhidong Lin, Yong Li, Yuxiao Tian, Yuan Liao
Summary: This paper proposes a novel method to rapidly and accurately evaluate the organic mass transfer efficiency of extractive membranes. PDMS-coated nanofibrous composite membranes were prepared by electrospinning, and their mass transfer efficiency was characterized using electrochemical impedance spectroscopy.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Electrochemistry
Sofia B. Davey, Amanda P. Cameron, Kenneth G. Latham, Scott W. Donne
Summary: This study examined the electrified interface between a planar non-porous glassy carbon electrode and a 0.5 M Na2SO4 aqueous electrolyte using SPECS and EIS techniques, providing insights into the variation of capacitance across the potential window and the role of EIS frequency in determining capacitance. The results highlighted the impact of mass transport on the amount of charge storage at the interface, showing the dynamics of interface formation and structure.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Xuan Yang, Yuping Duan, Shuqing Li, Lingxi Huang, Huifang Pang, Ben Ma, Tongmin Wang
Summary: In this study, a novel CI/CF composite with a three-dimensional reticulated structure is fabricated for the first time, which can simultaneously regulate the dielectric and magnetic losses in wide temperature ranges. The CI/CF composites show ultra-stable wide effective absorbing bandwidths at a thickness of only 1 mm, making them promising materials for high-temperature microwave absorption.
Article
Chemistry, Inorganic & Nuclear
O. Calixto-Lozada, J. Vazquez-Samperio, E. Cordoba-Tuta, E. Reguera, P. Acevedo-Pena
Summary: In this study, CoHCF particles were deposited on the surface of RVC foam to improve conductivity and utilize their storage capacity for Na+ ions. The composites showed enhanced electrochemical performance at high potential scan rates, potentially serving as cathode materials in sodium-ion battery technology.
SOLID STATE SCIENCES
(2021)
Article
Thermodynamics
Anantrao Vijay Shirsath, Caroline Bonnet, Divyesh Arora, Stephane Rael, Francois Lapicque
Summary: The manuscript focuses on using EPIS to investigate transport phenomena in a membrane fuel cell in the presence of liquid water. The study found that an increase in liquid water content leads to a higher impedance modulus. Diffusion in air superimposes upon previous phenomena, resulting in an increase in EPIS modulus and a decrease in phase shift.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Materials Science, Multidisciplinary
Shiv Prakash, Ravi Kumar, Pankaj Kumar, Sonu Rani, Khushboo Kumari, Saroj Kumari, Sanjay R. Dhakate
Summary: Graphitic carbon foam modified with multiwalled carbon nanotubes and cobalt oxide nanoparticles showed excellent electrochemical performance as an electrocatalyst for water splitting, with comparable efficiency to commercial benchmark Pt/C electrocatalyst. The modified samples also exhibited excellent electrolytic stability in 0.1 M KOH solution for 5 hours.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Hugh Warkentin, Colin P. O'Brien, Sarah Holowka, Benjamin Maxwell, Mariam Awara, Mark Bouman, Ali Shayesteh Zeraati, Rachael Nicholas, Alexander H. Ip, Essam S. Elsahwi, Christine M. Gabardo, David Sinton
Summary: The stability of CO2RR electrolyzers remains a challenge. This study demonstrates the continuous monitoring of electrolyzers using real-time electrochemical impedance spectroscopy (EIS) analysis, identifying common failure modes and proposing a framework for predicting and preventing failures.
Article
Engineering, Environmental
Lutian Wang, Yun Wu, Zhenkun You, Huanzhong Bao, Lianbao Zhang, Jie Wang
Summary: Ceramic membrane has sparked attention due to its cost-effectiveness. Microbial fuel cell-ceramic membrane bioreactor (MFC-CMBR) is considered an alternative technology for large-scale industrial applications. This study explores the electrochemical response and control of electricity utilization on ceramic membrane fouling in different types of MFCCMBRs. The experimental results show that coupling system with sludge acclimation and higher external resistance can effectively control membrane fouling. The coupling system improves the characteristics of sludge and alleviates membrane fouling.
Article
Chemistry, Analytical
Sue Woon Tan, Won-Yong Jeon, Bo Kyeong Yoon, Joshua A. Jackman
Summary: Researchers used electrochemical impedance spectroscopy (EIS) to study the membrane-disruptive properties of antimicrobial lipids and surfactants. The results showed that glycerol monolaurate (GML) caused irreversible membrane damage, while lauric acid (LA) had mainly reversible effects on the membrane. Additionally, sodium dodecyl sulfate (SDS) could cause membrane solubilization in micellar form and membrane defect formation in monomeric form.
Article
Chemistry, Multidisciplinary
Sheriff A. Balogun, Omolola E. Fayemi
Summary: The supercapacitive properties of synthesized nickel phthalocyanine multiwalled carbon nanotubes nanocomposite on a glassy carbon electrode were investigated in four different electrolytes. The successful synthesis of the nanocomposite was confirmed using various techniques. The modified electrode showed excellent supercapacitive behaviors, with the highest specific capacitance achieved in 0.1 M PBS (pH 7). The GCE-NiPcMWCNTs electrode demonstrated the fastest electron transport capability and the highest power density in H2SO4 electrolyte.
Article
Chemistry, Applied
Juqin Zeng, Marco Fontana, Adriano Sacco, Daniele Sassone, Candido F. Pirri
Summary: The composition of the catalyst layer greatly affects the mass diffusion rate and accessibility of active sites in the carbon dioxide reduction reaction (CO2RR). While efforts have been dedicated to cathode material development, little research has focused on maximizing electrode performance for CO2RR. This study thoroughly investigates the key electrode components and their effects on CO2RR performance.
Article
Electrochemistry
Nicolas Gauthier, Anshuman Agrawal, Olivier Dubrunfaut, Sylvain Franger, Bernard Lestriez, Jean-Claude Badot, Loic Assaud
Summary: This study aims to understand the interactions between liquid electrolyte and solid composite electrode in a Li-ion battery. By replacing the common active material with an insulating gamma-Al2O3 compound, the interaction between carbon black electronic additive and liquid electrolyte was detected. Broadband dielectric spectroscopy (BDS) and electrochemical impedance spectroscopy (EIS) were used to characterize charge transport at different scales. The influence of ion adsorption on carbon black surface on electron transport was emphasized and explained.
ELECTROCHIMICA ACTA
(2023)
Article
Ecology
Marie-Elodie Perga, Maria Syarki, Jorge E. Spangenberg, Victor Frossard, Emilie Lyautey, Natalia Kalinkina, Damien Bouffard
Summary: Zooplankton can spend winter actively under lake ice, with only a fraction contributing to an active food web due to limited and unrewarding feeding opportunities. Zooplankton fatty acids under ice mostly come from previously accumulated fat storage, with little contribution from under-ice seston assimilation. The food web under lake ice is supported by mixotrophic phytoplankton, resulting in few trophic linkages and low connectance in the planktonic community.
FRESHWATER BIOLOGY
(2021)
Article
Energy & Fuels
Teo Polimann, Michel Ondarts, Jonathan Outin, Nolwenn Le Pierres, Evelyne Gonze
Summary: The study on the treatment of trace compounds in biogas suggests that a high-temperature program is more effective than a moderate-temperature program. During the TSA process, the adsorption capacities of the activated carbon cloth decreased with the increase of cycles, mainly due to the deposition and polymerization of siloxanes.
Article
Ecology
Emilie Lyautey, Elodie Billard, Nathalie Tissot, Stephan Jacquet, Isabelle Domaizon
Summary: This study investigated the spatial variability and temporal dynamics of methanogenic Archaea and methanotrophic bacteria in Lake Bourget, France. Changes in both structure and abundance were detected mainly at the water-sediment interface in relation to the lake seasonal oxygenation dynamics.
Article
Construction & Building Technology
J. Fito, N. Dimri, J. Ramousse
Summary: This paper evaluates the multi-criteria competitiveness of renewable energies for residential heat production in France, identifying ground-source heat pumps and biomass boilers as the most competitive solutions. Solar-driven solutions, especially solar thermal collectors, are found to have a major drawback of temporal mismatch between production and consumption.
ENERGY AND BUILDINGS
(2021)
Article
Thermodynamics
N. Dimri, J. Ramousse
Summary: This article compares four different solar combined heating and power systems in an individual house in Chambery, France, aiming to find the optimal design using genetic algorithm based on thermoeconomic indicator. The study also evaluates the solutions against each other and the reference case using various indicators such as solar self-production, energy produced by solar panels, and fuel savings. Despite economic barriers, solar thermal collectors with grid-driven electric boiler show potential as an economical competitor to gas boilers, while photovoltaic systems could become more competitive when coupled with a heat pump.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Applied
Fabrice Guy, Hanna Runtti, Laurent Duclaux, Michel Ondarts, Laurence Reinert, Jonathan Outin, Evelyne Gonze, Sylvie Bonnamy, Yasushi Soneda
Summary: New types of Cu-doped spherical-shaped activated carbons were prepared by pyrolysis of chitosan hydrogels impregnated with KOH at different ratios. Cu doping resulted in bead-shaped activated carbons with high specific surface areas, while varying impregnation ratios led to changes in porosity from microporous to both microporous and mesoporous. Characterization techniques revealed the presence of N-enriched carbons with pyridinic and pyrrolic groups in the beads.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
Gerard Merlin, Jonathan Outin, Herve Boileau
Summary: The study showed that adding grease or whey can significantly increase methane production in co-digestion, but using septage as a co-substrate can have a negative impact on performance. Experimental results demonstrated good biodegradation efficiency, while modeling confirmed the importance of protein and lipid content for digester stability and methane production.
Article
Thermodynamics
Timothe Gronier, Jaume Fito, Erwin Franquet, Stephane Gibout, Julien Ramousse
Summary: The study introduces an iterative sizing method focusing on demand-side management to optimize the overall performance of district energy networks integrating solar sources. Various criteria, including energetic, economical, and operational aspects, are considered, with exergy playing a key role in evaluating the quality of energy in multi-energy networks. The method effectively reduces the number of installed solar thermal collectors and photovoltaic panels while ensuring stable results after just two iterations in all scenarios.
Review
Thermodynamics
Arnat Mahamoudou, Nolwenn Le Pierres, Julien Ramousse
Summary: This paper focuses on falling film absorber configuration and reviews the analytical and numerical approaches used to analyze the phenomena occurring in falling films. It also presents research on identifying entropy generation sources using thermodynamics.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2022)
Article
Chemistry, Multidisciplinary
Najwa Kanama, Michel Ondarts, Gaelle Guyot, Jonathan Outin, Evelyne Gonze
Summary: This article presents detailed indoor air quality (IAQ) measurements taken in an energy-efficient occupied house in France. With high spatial and temporal discretization measurements, it showed that such detailed data allow for a better-quality health impacts assessment and a better understanding of the transport of pollutants between rooms.
APPLIED SCIENCES-BASEL
(2021)
Article
Multidisciplinary Sciences
Pierre Belleville, Gerard Merlin, Julien Ramousse, Jonathan Deseure
Summary: This study investigates the limitation of activity distribution in electroactive biofilm using a numerical model. The competition between acetate diffusion and electronic conduction is found to be the major factor influencing metabolic activity distribution. The properties of inactive biomass fraction can alter the local biomass distribution, with increased density reducing acetate diffusion and enhancing outer layer biomass activity. High conductivity of the inactive fraction promotes outer layer biomass activity and current production.
SCIENTIFIC REPORTS
(2022)
Article
Thermodynamics
Arnat Mahamoudou, Julien Ramousse, Nicolas Cellier, Nolwenn Le Pierres
Summary: This study investigates the evaporative laminar falling film on a vertical plate heated by a heat transfer fluid. The research focuses on determining the local temperature, entropy generation, and evaporated mass flow in co-current and counter-current configurations. The impact of various parameters on entropy generation and thermal/evaporation efficiencies is analyzed.
APPLIED THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Elise Berut, Laurence Bois, Quentin Touloumet, Jonathan Outin, Michel Ondarts, Georgeta Postole, Maria Jose Rueda Lopez, Aline Auroux, Nolwenn Le Pierres
Summary: Composite sorbents based on silica and polyethylene glycol with calcium chloride exhibited good heat storage performance. The presence of polyethylene glycol enhanced the stability of hydrated calcium chloride and prevented salt leakage. Compared to zeolite, the composite sorbents had a higher mass energy density, making them suitable for heat storage applications with moderate power outputs.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Construction & Building Technology
Najwa Kanama, Michel Ondarts, Gaelle Guyot, Jonathan Outin, Benjamin Golly, Evelyne Gonze
Summary: This study aims to assess the impact of energy renovation on indoor air quality (IAQ) in a school building located in a polluted outdoor environment. The results showed that the installation of a balanced ventilation system significantly increased the air change rate and improved IAQ. However, it also resulted in a significant increase in indoor/outdoor particle concentration.
JOURNAL OF BUILDING ENGINEERING
(2023)
Proceedings Paper
Construction & Building Technology
Yolaine Adihou, Malick Kane, Julien Ramousse, Bernard Souyri
Summary: Low-temperature thermal networks allow for the utilization of additional renewable and recovered energy sources, but decentralized heat pumps are needed, which can impact overall electricity consumption. Finding the optimal network temperature is crucial for minimizing thermal and electrical consumption while integrating the maximum amount of renewable energy sources.
CARBON-NEUTRAL CITIES - ENERGY EFFICIENCY AND RENEWABLES IN THE DIGITAL ERA (CISBAT 2021)
(2021)
Article
Biochemistry & Molecular Biology
Priyanga Kumar, Noel Nesakumar, Jayashree Gopal, Sakthivel Sivasubramanian, Srinivasan Vedantham, John Bosco Balaguru Rayappan
Summary: This study developed an electrochemical biosensor for measuring MG levels in the plasma of type-2 diabetes mellitus patients. The biosensor showed a wide linear concentration range, high sensitivity, and a 90% correlation with ELISA data. It also exhibited a significant correlation with HbA1c and fasting plasma glucose levels.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Cristina Tortolini, Valeria Gigli, Antonio Angeloni, Federico Tasca, Nguyen T. K. Thanh, Riccarda Antiochia
Summary: The development of a novel voltammetric immunosensor for the detection of salivary MMP-8 at the point-of-care is described. The sensor showed good performance and comparable results to the conventional ELISA method when tested in real saliva samples. This biosensor is single-use, cost-effective, and requires a small quantity of test medium and a short preparation time.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Rimsha B. Jamal, Ulrich Bay Gosewinkel, Elena E. Ferapontova
Summary: Pathogen-triggered infections are a severe global threat to human health. Researchers have developed a fast and inexpensive electrocatalytic aptamer assay for the specific and ultrasensitive detection of E. coli, allowing for timely treatment and prevention. The method is fast, sensitive, and can be used in field and point-of-care applications for analysis of bacteria in the human environment.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Miao Liu, Yuwei Wang, Shanshan Tang, Wei Wang, Axin Liang, Aiqin Luo
Summary: An unlabeled ratiometric molecular imprinted electrochemiluminescence sensor was developed for the determination of trace uric acid using MXene@NaAsc, CdSe@ZnS quantum dots, and molecularly imprinted polymer composites modified glass carbon electrode. This sensor, with easy preparation, great selectivity, and excellent sensitivity, successfully detected uric acid in human serum.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Charlotte Da Silva, Camille Lamarche, Carole Pichereaux, Emmanuelle Mouton-Barbosa, Gauthier Demol, Sebastien Boisne, Etienne Dague, Odile Burlet-Schiltz, Flavien Pillet, Marie-Pierre Rols
Summary: Low-energy electron beams (LEEB) are a safe and practical sterilization solution for industrial applications. To address the limitations of LEEB, we developed a low-energy pulsed electron beam generator (LEPEB) that can effectively and efficiently eradicate bacteria in a wide range of industrial applications.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Daniel Dobrovodsky, Ales Danhel, Daniel Renciuk, Jean-Louis Mergny, Miroslav Fojta
Summary: In this study, N-methyl mesoporphyrin IX (NMM) was utilized as a voltammetric probe for the electrochemical detection of G4s. The detection of NMM was achieved by cyclic voltammetry on a hanging mercury drop electrode (HMDE) with a limit of detection (LOD) of 40 nM. The reduction signal of NMM was found to be significantly higher when G4 oligodeoxynucleotides (G4 ODNs) were present compared to single- or double-stranded ODNs or unfolded ODNs capable of forming G4s. Gradual transition from unstructured single strand to G4, induced by increasing concentrations of the G4 stabilizing K+ ions, was detected for the first time using electrochemical methods. Circular dichroism spectroscopy provided support for the obtained results. This work expands on the utilization of electrochemical probes for DNA secondary structure recognition and offers a proof of principle for the development of novel electroanalytical methods for nucleic acid structure studies.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Mengjiao Zhu, Yu Liu, Meiyue Wang, Tao Liu, Zhenyu Chu, Wanqin Jin
Summary: Early rapid diagnosis of COVID-19 is crucial for reducing the risk of severe symptoms and loss of lung function. Researchers have proposed an ultrafast and ultrasensitive DNA sensor that can accurately detect the virus in a short period of time, with outstanding selectivity.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Fatima-Zahra Ait-Itto, James A. Behan, Mathieu Martinez, Frederic Barriere
Summary: This study investigated the feasibility of using ancient marine sediments as inoculum for bioanode development in microbial fuel cells (MFC). The results showed the presence of two exoelectrogenic bacterial genera in these iron-rich sediments and confirmed that the development of the bioanode derived from the native microbiota. This study has important implications for understanding the role of these bacteria in broader paleoenvironmental phenomena.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Issa Fall, Bastien Doumeche, Sofiene Abdellaoui, Caroline Remond, Harivony Rakotoarivonina, Marjorie Ochs
Summary: This article presents a novel electrochemical tool based on lignin-coated paper electrodes for the detection and characterization of ligninolytic activity. The suitability of this method has been demonstrated using a catalaseperoxidase isolated from Thermobacillus xylanilyticus.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Chenyi Zhuo, Dehong Yu, Jiuying Cui, Zichun Song, Qianli Tang, Xianjiu Liao, Zhao Liu, Ning Xin, Lu Lou, Fenglei Gao
Summary: A label-free detection strategy for quantification of Apolipoprotein A4 (Apo-A4) has been developed based on rolling circle amplification (RCA) and proximity hybridization-induced DNAzyme-driven bipedal DNA walker. This method shows high sensitivity and selectivity for a wide range of protein targets.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Niloufar Fattahi, Jeffrey Reed, Evan Heronemus, Priyasha Fernando, Ryan Hansen, Prathap Parameswaran
Summary: In this study, polyethylene glycol hydrogels were developed as protective coatings for electroactive biofilms, improving their viability under low resource conditions and ammonia-N shocks.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Xiaopeng Hou, Qiongyi Cheng, Hui Wang
Summary: A self-cleaning paper-based microfluidic biosensor was developed using hydrophobic paper decorated with polymeric octadecyl trichlorosilane. The biosensor showed improved performance and could effectively measure the concentration of copper ions in livestock feed and manure.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Yanling Zhang, Jie Wang, Min Liu, Yun Ni, Yao Yue, Dawei He, Ruijiang Liu
Summary: An innovative electrochemical biosensor has been developed for sensitive detection of HER2 protein, an important tumor marker for breast cancer diagnosis and treatment evaluation. The biosensor utilizes specific recognition probes and nanomaterials, along with a unique sensing strategy, to achieve ultra-low detection limit and demonstrate excellent selectivity, reproducibility, and stability.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Humayun Amir, Vasanth Subramanian, Sundaram Sornambikai, Nagamony Ponpandian, Chinnusamy Viswanathan
Summary: In this study, the electrochemical detection of breast cancer biomarker HER2 was successfully achieved using the N-CQDs/GS as the detector. The BSA-modified HER2 Antibody/N-CQDs/GS immunoelectrode preserved excellent activity for the biosensor, while the GS electrode provided high stability and conductivity. The method exhibited a low detection limit and optimal specificity, stability, and reproducibility for detecting HER-2 protein in untreated blood samples from breast cancer patients.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Ilona Uzieliene, Anton Popov, Raminta Vaiciuleviciute, Gailute Kirdaite, Eiva Bernotiene, Almira Ramanaviciene
Summary: This review discusses the application of polypyrrole (Ppy), an electroconductive polymer, in cell culture experiments with electrical stimulation (ES) and its potential for tissue regeneration. Ppy can direct ES to cells and stimulate differentiation towards different cell lineages. Different types of Ppy materials and their combination with active molecules are explored.
BIOELECTROCHEMISTRY
(2024)
