Article
Chemistry, Multidisciplinary
Elizabeth Santos, Wolfgang Schmickler
Summary: In lithium metal batteries, excess charge accumulates on small protrusions due to the negatively charged electrode, creating a strong electric field that attracts Li+ ions and induces dendrite growth. This excess charge, even on small tips, can contribute to dendrite formation along with locally reduced surface tension.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Xiaotong Ma, Mingbo Li, Xuefei Xu, Chao Sun
Summary: This study investigates the coupling effects of ionic surfactants and electrolytes on the stability of bulk nanobubbles. Experimental results show that ionic surfactants not only reduce the surface tension but also promote the accumulation of net charges, which facilitate the nucleation and stabilization of bulk nanobubbles.
Article
Multidisciplinary Sciences
Jun Huang, Yanxia Chen, Michael Eikerling
Summary: This paper reveals that the surface-charging behaviors of the electrodes in an electrochemical cell are not independently described by their electric double-layer properties. Instead, they are correlated and determined by the electric double-layer and reaction kinetics of both electrodes. Two fundamental equations are derived to describe the correlated surface-charging behaviors, and approximate analytical solutions are provided for low and high current densities for better understanding. The implications of this conceptual analysis for theoretical and computational electrochemistry are discussed, and a strategy to modulate the activity of one electrode by tuning the electric double-layer parameters of the other electrode in a two-electrode electrochemical cell is demonstrated.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Multidisciplinary
Ines Muguet, Ali Maziz, Fabrice Mathieu, Laurent Mazenq, Guilhem Larrieu
Summary: This study introduces a new method to enhance the performance of microelectrode arrays (MEAs) for electrophysiological studies of neuronal networks by integrating 3D nanowires (NWs) with MEAs. The integration increases the surface-to-volume ratio, allowing for subcellular interactions and high-resolution neuronal signal recording. Conductive polymer coatings, specifically poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS), are investigated to improve charge transfer capacity and biocompatibility. The results show that PEDOT-coated electrodes exhibit thickness-dependent improvements in stimulation and recording performances, offering new possibilities for studying neuronal activity at the sub-cellular level.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Tran Van Cong, Nguyen Duc Hung, Lai Xuan Bach, Tran Van Hung, Nam Nguyen Dang
Summary: The study evaluates the application of plasma creation technology in an aqueous environment, highlighting the significant impact of factors like voltage, electrode distance, pH, conductivity, and ambient temperature on plasma appearance. Tungsten (W) electrode is found to generate plasma earliest under high voltage and larger electrode distance, producing more gas in the water-soluble plasma compared to iron (Fe) and copper (Cu) electrodes.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Xin Xu, Connor Carr, Xinqi Chen, Benjamin D. Myers, Ruiyun Huang, Weizi Yuan, Sihyuk Choi, Dezhi Yi, Charudatta Phatak, Sossina M. Haile
Summary: This study reveals the variation in grain boundary properties of polycrystalline ionic materials and the correlation between grain boundary resistance and impurity concentration. The findings suggest that the grain boundary resistance may be caused by impurity-generated space charge effects and driven by the energetics of impurity segregation.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Douha Harbaoui, Moustafa M. S. Sanad, Cecile Rossignol, El Kebir Hlil, Noureddine Amdouni, Kader Zaidat, Said Obbade
Summary: The limited resources of lithium have led to research on new polyanionic cathode materials for sodium-ion batteries. Three compounds, Na2M22+Fe3+(PO4)(3) (M = Mn, Ni, and Co), were synthesized and their properties were investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Electrochemistry
Basudev Choudhury, Bharatkumar Suthar
Summary: Characterizing the through-plane inhomogeneity in porous media is important for understanding transport processes in batteries and fuel cells. This study extends the impedance-based approach to characterize the inhomogeneity of a porous electrode and provides analytical expressions and approximate solutions for impedance response. The applicability of this theory is demonstrated through an impedance-based experimental investigation of gas diffusion media.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Biochemical Research Methods
Ye Tao, Changrui Shi, Feiyang Han, Ruizhe Yang, Rui Xue, Zhenyou Ge, Wenshang Guo, Weiyu Liu, Yukun Ren
Summary: In this study, a novel robot arm was designed to transfer the motion of gallium-based liquid metals from an alkaline solution in a synchronous drive mode. The motion performance of the robot arm against the applied voltage and driving direction was investigated, and several applications using this robot arm were demonstrated.
Article
Chemistry, Physical
Beichen Liu, Wenxiao Guo, Matthew A. Gebbie
Summary: In this study, we investigate the influence of ionic correlations on the reaction rates and selectivity of CO2 electroreduction. Through experiments, we find that at intermediate concentrations, the reduction rates of CO2 are accelerated and the efficiency of CO production is enhanced. The acceleration of CO2 reduction is due to the amplification of potential-dependent driving forces, rather than changes in onset potential. These findings are applicable to both cocatalytic and noncatalytic ions.
Article
Multidisciplinary Sciences
Van Chinh Tran, Gabriella G. Mastantuoni, Marzieh Zabihipour, Lengwan Li, Lars Berglund, Magnus Berggren, Qi Zhou, Isak Engquist
Summary: The discovery of mass transport in plants has led to the development of low-cost and sustainable wood-based electronics. In this study, a wood electrochemical transistor (WECT) was created using conductive wood (CW) for all three electrodes, prepared through a two-step process. The modified wood exhibited high electrical conductivity due to the incorporation of PEDOT:PSS microstructures. The WECT showed promising performance for electrical current modulation and demonstrated potential for bio-based electronic devices.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Review
Chemistry, Analytical
Ersin Demir, Hulya Silah, Bengi Uslu
Summary: This study reviews the electrochemical methods based on electrode modification with phthalocyanines and discusses their sensor applications in the determination of drugs, pesticides, organic materials, and metals.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Olga Lebedeva, Dmitry Kultin, Leonid Kustov
Summary: This review explores the characteristics of electrochemical synthesis of nanostructures in ionic liquids, emphasizing the production of various nanomaterials and nanoscale polymer films. It highlights the potential application of ILs as an electrochemical medium and the relative simplicity of experimental procedures.
Article
Engineering, Environmental
Chao Yang, Yiang Fan, Pu Li, Qinfen Gu, Xiao-yan Li
Summary: The study developed novel freestanding and highly-stable 3D SnO2-Sb anodes with macro-pores, significantly increasing the electro-active surface area and improving the efficiency for antibiotic oxidation and mineralization. The anode exhibited high stability and performed well in treating actual wastewater.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Niamat Khuda, Subramaniam Somasundaram, Ajay B. Urgunde, Christopher J. Easley
Summary: A variety of EC biosensors are critical in disease diagnostics, with DNA-based EC sensors showing promise in detecting different analyte classes. This study used methylene blue-labeled DNA strands to monitor the kinetics of DNA hybridization at the electrode surface. By varying the position of the DNA segment relative to the electrode surface and the ionic strength of the solution, interference with DNA hybridization was observed closer to the surface, with greater interference at lower ionic strength. This work highlights the importance of salt concentration and DNA hybridization site in designing DNA-based EC sensors that directly measure hybridization at the electrode surface.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Physics, Atomic, Molecular & Chemical
Fred W. McLafferty, Sergio Castro, Kathrin Breuker
EUROPEAN JOURNAL OF MASS SPECTROMETRY
(2010)
Article
Physics, Applied
S. Castro, C. Larriba, J. Fernandez de la Mora, P. Lozano, S. Suemer, Y. Yoshida, G. Saito
JOURNAL OF APPLIED PHYSICS
(2007)
Article
Physics, Applied
D. Garoz, C. Bueno, C. Larriba, S. Castro, I. Romero-Sanz, J. Fernandez de la Mora, Y. Yoshida, G. Saito
JOURNAL OF APPLIED PHYSICS
(2007)
Article
Physics, Applied
C. Larriba, S. Castro, J. Fernandez de la Mora, P. Lozano
JOURNAL OF APPLIED PHYSICS
(2007)
Article
Physics, Applied
S Castro, R Bocanegra
APPLIED PHYSICS LETTERS
(2006)