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Electrochem, Volume 6, Issue 3

2025 September - 12 articles

Cover Story: Electrode oxidation provides a positive charge to a redox species on an electrode with the help of an anion to form a dipole. The dipole is stabilized via the orientation of the neighboring solvent dipoles. Solvent–solvent interaction or its viscosity delays the stabilization, including the frequency dispersion of the double layer capacitance. The orientation of dipoles for oxidation is the same as that for the reduction. Thus, the transfer coefficient is 0.5. The theory and the experimental verification are presented here. View this paper
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Articles (12)

  • Article
  • Open Access
1,692 Views
18 Pages

Exploring Binder–Ionic Liquid Electrolyte Systems in Silicon Oxycarbide Negative Electrodes for Lithium-Ion Batteries

  • Ivonne E. Monje,
  • Nedher Sanchez-Ramírez,
  • Laurence Savignac,
  • Pedro H. Camargo,
  • Steen B. Schougaard,
  • Daniel Bélanger and
  • Roberto M. Torresi

Enhancing the safety of lithium-ion batteries (LIBs) by replacing flammable electrolytes is a key challenge. Ionic liquid (IL)-based electrolytes are considered an interesting alternative due to their thermal and chemical stability, high voltage stab...

  • Article
  • Open Access
1 Citations
2,600 Views
14 Pages

Estimation of Lead Acid Battery Degradation—A Model for the Optimization of Battery Energy Storage System Using Machine Learning

  • Arief S. Budiman,
  • Rayya Fajarna,
  • Muhammad Asrol,
  • Fitya Syarifa Mozar,
  • Christian Harito,
  • Bens Pardamean,
  • Derrick Speaks and
  • Endang Djuana

Energy storage systems are becoming increasingly important as more renewable energy systems are integrated into the electrical (or power utility) grid. Low-cost and reliable energy storage is paramount if renewable energy systems are to be increasing...

  • Article
  • Open Access
3 Citations
1,128 Views
11 Pages

Reported rate constants of charge transfer reactions (CTs) have ranged widely, depending on techniques and timescales. This fact can be attributed to the time-dependent double-layer capacitance (DLC), caused by solvent interactions such as hydrogen b...

  • Article
  • Open Access
1,609 Views
16 Pages

TiO2 composites with polypyrrole have gained attention for various applications; however, some reported results on the suitability of this heterojunction for photoelectrochemical water oxidation do not agree. In this sense, it is relevant to further...

  • Article
  • Open Access
1,906 Views
18 Pages

Ternary Nickel-Iron-Phosphorus (NiFeP) Electrocatalysts for Alkaline Water Splitting

  • Raminta Šakickaitė,
  • Zita Sukackienė,
  • Virginija Kepenienė,
  • Aldona Balčiūnaitė,
  • Raminta Stagniūnaitė,
  • Gitana Valeckytė and
  • Loreta Tamašauskaitė-Tamašiūnaitė

In this study, ternary NiFeP coatings were fabricated on a copper substrate using a simple, fast, and cost-effective electroless deposition method. The coatings were named Ni85Fe4P12, Ni80Fe8P12, and Ni75Fe12P12, indicating 4, 8, and 12 at % of Fe, r...

  • Article
  • Open Access
1 Citations
3,377 Views
19 Pages

The development of high-performance solid electrolytes is critical to advancing solid-state lithium-ion batteries (SSBs), with lithium lanthanum zirconium oxide (LLZO) emerging as a leading candidate due to its chemical stability and wide electrochem...

  • Review
  • Open Access
2,830 Views
14 Pages

Electrochemical (Bio) Sensors Based on Metal–Organic Framework Composites

  • Ping Li,
  • Ziyu Cui,
  • Mengshuang Wang,
  • Junxian Yang,
  • Mingli Hu,
  • Qiqing Cheng and
  • Shi Wang

Metal–organic frameworks (MOFs) have characteristics such as a large specific surface area, distinct functional sites, and an adjustable pore size. However, the inherent low conductivity of MOFs significantly affects the charge transfer efficie...

  • Article
  • Open Access
2 Citations
1,244 Views
18 Pages

The energy generated from renewable sources has an intermittent nature since solar irradiation and wind speed vary continuously. Hence, their energy should be stored to be utilized throughout their shortage. There are various forms of energy storage...

  • Article
  • Open Access
1 Citations
1,361 Views
16 Pages

Electrocoagulation of Spent Coolant by Dissimilar Fe-Al Combination

  • Shu Pei Ng,
  • Weiyi Wu,
  • Min Qian,
  • Yuelong Preston Zhu,
  • Xinying Deng,
  • Shuyun Chng,
  • Yi Jin Tan,
  • Yi Qing Kek,
  • Shi Jun Zachary Yong and
  • Wenjin Yan
  • + 1 author

Electrocoagulation is rapidly gaining prominence in wastewater treatment due to its capabilities and less reliance on additional chemicals. While a lot of research efforts have been focused on the influence of the anode material, power supply, and re...

  • Article
  • Open Access
1 Citations
2,049 Views
18 Pages

Chemical Stability of PFSA Membranes in Heavy-Duty Fuel Cells: Fluoride Emission Rate Model

  • Luke R. Johnson,
  • Xiaohua Wang,
  • Calita Quesada,
  • Xiaojing Wang,
  • Rangachary Mukundan and
  • Rajesh Ahluwalia

Laboratory data from in-cell tests at and near open circuit potentials (OCV) and ex-situ H2O2 vapor exposure tests are used to develop a fluoride emission rate (FER) model for a state-of-the-art 12-µm thin, low equivalent weight, long-chain per...

  • Article
  • Open Access
1,781 Views
20 Pages

An important class of analytes are volatile organic carbons (VOCs), particularly aliphatic primary alcohols. Here, we report the straightforward modification of a commercially available carbon monoxide sensor to detect a range of aliphatic primary al...

  • Article
  • Open Access
1,625 Views
21 Pages

Alternative Supports for Electrocatalysis of the Oxygen Evolution Reaction in Alkaline Media

  • Gwénaëlle Kéranguéven,
  • Ivan Filimonenkov,
  • Thierry Dintzer and
  • Matthieu Picher

The anodic stability of tungsten carbide (WC) and iron oxide with a spinel structure (Fe3O4) were compared against similar data for nanostructured, boron-doped diamond (BDD), and the benchmark Vulcan XC72 carbon, in view of their eventual application...

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Electrochem - ISSN 2673-3293