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ChemElectroChem
Scopus
ISSN 2196-0216 · Wiley-VCH · 1.255 artikel di indeks
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Artikel Jurnal
NiCo2O4@Porous Graphene Aerogel with Dual Functions of Adsorption and Catalysis to Promote Catalytic Conversion of Polysulfides
Combining transition metal oxides with polarity and 3D porous carbon materials to leverage their synergistic effects is an effective strategy for addressing the challenges in lithium–sulfur batteries. In this work, in order to accelerate catalytic conversion of polysulfides, the co‐growth strategy…
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Artikel Jurnal
Thin Film Electrodeposition of a Fe3(NH4)H8(PO4)6.6H2O Superphosphate Material by Oxidation of Mohr's Salt in a Phosphoric Medium
The superphosphate thin film of Fe3(NH4)H8(PO4)6.6H2O is electrodeposited using a concentrated solution of 2 M phosphoric acid and a Mohr's salt precursor (Fe(NH4)2(SO4)2.6H2O). The electrochemical oxidation of the Fe(H2PO4)+ complex present in the medium is monitored by cyclic voltammetry and…
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Artikel Jurnal
Niobium‐Based Surface Engineering Enables High Rate and Cycling Stability of High‐Voltage LiNi0.5Mn1.5O4 Cathode
LiNi0.5Mn1.5O4 (LNMO) is a promising high‐voltage cathode for next‐generation lithium‐ion batteries (LIBs) due to its high operating potential, low cost, and cobalt‐free composition. However, severe interfacial degradation and structural instability at 4.9 V hinder its practical application. In…
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Artikel Jurnal
Salt Precipitation in Zero‐Gap CO2 Membrane Electrode Assemblies: Strategies for Long‐Term Operation
Membrane electrode assembly (MEA)‐based CO2 electrolyzers enable high‐rate electrochemical CO2 reduction reaction (CO2RR) with industrially relevant current densities, but their durability is often limited by salt precipitation and electrode flooding. This review aims to elucidate the mechanisms of…
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Artikel Jurnal
Enhanced Poison Resistance in Ethanol Electro‐Oxidation via Polymer‐Assisted Roughness Modification of Pt Electrodes
This paper discusses the ethanol oxidation reaction (EOR) on rough Pt electrodes prepared through electrodeposition. EOR on Pt surfaces is typically characterized by a hysteretic cyclic voltammogram in low ethanol concentrations, where anodic current drops due to the formation of surface‐poisoning…
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Artikel Jurnal
Zirconia/Porous Carbon Derived from UiO‐66 as an Efficient Electrocatalyst Carrier for Oxygen Reduction Reactions
The development of high‐performance, low‐platinum (Pt)‐loading catalysts for the oxygen reduction reaction (ORR) remains a critical challenge in proton exchange membrane fuel cells. Zirconium dioxide‐carbon composite materials are prepared using the Zr‐based metal‐organic framework UiO‐66 as a…
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Artikel Jurnal
In‐Operando Friction Force Microscopy Reveals Degradation and Repassivation of Epitaxial Perovskites During Oxygen Evolution Reaction Under Dynamic Cycling Conditions
A detailed understanding of catalyst degradation under dynamic conditions is essential to develop improved catalysts for the oxygen evolution reaction (OER), the bottleneck for efficient electrochemical water splitting in alkaline media. Perovskite oxides represent an interesting class of OER…
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Artikel Jurnal
Poly(propylene glycol) Diacrylate Crosslinker in Gel Polymer Electrolytes for Glass‐based Electrochromic Devices
Electrochromic devices (ECDs) are promising as smart windows, as they provide dynamic control over light transmission and contribute to reducing energy costs in buildings. However, sluggish response times and low cycling stability highlight key barriers to their commercialization. One approach to…
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Artikel Jurnal
Distinct Melt Infusion Architectures of Antiperovskite Solid Electrolytes
Antiperovskite solid electrolytes are an emerging class of lithium‐ion conductors distinguished by their unusually low melting points, enabling scalable, low‐temperature processing routes not accessible to most solid electrolytes. In this work, we synthesize phase‐pure chloride (Cl), bromide (Br)…
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Artikel Jurnal
Selectivity and Active State Formation During Pulsed CO2 Electroreduction in Cation‐Modified Electrolyte
Pulsed CO2 reduction reaction (CO2RR) is a viable approach to steer selectivity between C1 and C2+ products as well as hydrocarbons and oxygenates via intermittent Cu oxidation. Here, we report on the catalytic influence of alkali metal cations using oxide‐derived Cu nanocrystals based on…
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Artikel Jurnal
Highly Conductive, Ceramic‐Rich Hybrid Ionogel Electrolytes for Room‐Temperature Li‐Metal Batteries
Hybrid solid electrolytes present a promising class for applications in lithium‐metal batteries; however, their practical implementation remains limited by the difficulty of simultaneously achieving high room‐temperature ionic conductivity, mechanical robustness, and stable electrode‐electrolyte…
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Artikel Jurnal
Platinum‐Based Bimetallic Electrocatalyst for Hydrogen Evolution and Oxidation Reactions in Alkaline Media
Achieving sustainable green hydrogen economy requires overcoming the challenges associated with hydrogen production and utilization, one of them being the sluggish kinetics of hydrogen evolution and oxidation reactions (HER/HOR) in alkaline media. Utilizing Pt‐based bimetallic catalysts enhances…
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Artikel Jurnal
In Situ EQCM‐D Investigations of PEMFC Catalyst‐Ionomer Interactions
Proton exchange membrane fuel cell (PEMFC) electrodes comprise multiple functional components whose interplay critically influences both performance and long‐term stability. In this article, the interaction between ionomer and catalyst materials was investigated using electrochemical quartz crystal…
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Artikel Jurnal
Tuning the Efficiency of Electrocatalytic Primary Amine Synthesis via Reductive Amination of Levulinic Acid Using Pb as a Catalytic Additive
Electrocatalytic reductive amination (ECRA) offers a sustainable approach for the synthesis of primary amines by replacing stoichiometric reducing agents with electrons and using water as both solvent and proton source. This atom‐efficient strategy minimizes waste, avoids hazardous reagents, and…
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Artikel Jurnal
Mind the Solid Side: Electrochemical Thermodynamics, Kinetics, and Hysteresis in Energy Materials
Bulk electrochemical phase transformations (EPTs) govern the operation of many modern electrochemical systems, from batteries to electrocatalysts. These EPTs involve a coupled interplay of ion transport from a liquid into an electrode film, electron transfer, and phase transformations in the film…
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Artikel Jurnal
Probing the Effect of Spectator Anions on Chloride Adsorption for Selective Oxygen Evolution Reaction over Ni Catalysts
Water electrolysis is a promising route to green hydrogen production, but its operation in chloride‐containing electrolytes (e.g., seawater) is hindered by the competing chlorine evolution reaction (CER) that lowers oxygen evolution reaction (OER) selectivity and accelerates catalyst degradation…
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Artikel Jurnal
Recycling of Spent Cathode Carbon from Aluminum Electrolysis: Detoxification Approaches, Resource Utilization, and Environmental Perspectives
During aluminum (Al) electrolysis, large amounts of spent cathode carbon (SCC) are generated, often contaminated with hazardous substances such as fluorides and cyanides. As a result, SCC is classified as a dangerous solid waste posing long‐term risks to ecosystems and human health if untreated…
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Artikel Jurnal
A Novel Vanadium–Titanium Redox Flow Battery with Enhanced Electrochemical Performance & Greener Alternative
In pursuit of efficient and cost‐effective grid‐scale energy storage solutions, redox flow batteries (RFBs) have emerged as champions by offering a promising solution owing to their design scalability. However, conventional vanadium RFBs are limited by high and volatile material costs. Here, a…
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Artikel Jurnal
Evaluation of Electrolyzer Efficiency by Motion Tracking of Chemically Driven Electromagnets
Water splitting is one of the most efficient approaches to clean hydrogen production. Assessing electrolyzer performance requires evaluating the efficiency of electrocatalysts. Herein, a motion‐based method is presented that combines bipolar electrochemistry (BE) with dynamic, chemically induced…
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Artikel Jurnal
A pH Buffer Additive for Aqueous Processing of Spinel and Layered Li‐Ion Positive Electrodes
Aqueous processing of cathodes offers a lower‐cost, greener alternative to poly(vinylidene fluoride)/N‐methyl‐2‐pyrrolidone routes, but contact with water elevates slurry pH and drives metal leaching, causing Al current‐collector corrosion and electrode voids. Strong acids (e.g., H3PO4) can curb…
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