Results 131 to 140 of about 14,886 (263)

Post‐Synthetic Bimetallic Assembly of 2D CoFe‐MOF Composite as an Electrocatalyst for the Oxygen Evolution Reaction

open access: yesCleanMat, EarlyView.
Post‐synthetic bimetallic assembly constructs a 2D CoFe‐MOF composite. DFT confirms Fe→O→Co synergy optimizes the OER pathway (ΔGmax = 1.67 eV), leading to ultralow overpotential (290 mV) and robust stability. ABSTRACT Metal‐organic frameworks (MOFs) are promising oxygen evolution reaction (OER) electrocatalysts, yet their commercial viability is ...
Baiming Liang   +11 more
wiley   +1 more source

Going from Pt to PGM‐free Catalysts: Effects of Ink Compositions on PEM Water Electrolysis

open access: yesChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Optimisation of cathode ink formulations regarding the ratio between catalyst, carbon and binder results in a boost in PEM water electrolysis performance. The optimisation can be transferred from pentlandites to platinum and selenide catalysts, wherein the metal chalcogenides show a stronger performance enhancement.
Janna Wierper   +7 more
wiley   +1 more source

Perfluorinated Ionomer Dispersion Preparation: Autoclaving vs. High-Pressure Homogenizing. [PDF]

open access: yesMembranes (Basel)
Morozova SM   +9 more
europepmc   +1 more source

Iron and Nickel Substituted Perovskite Cobaltites for Sustainable Oxygen Evolving Anodes in Alkaline Environment

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Perovskite oxide catalysts with reduced Co content, substituted by Fe and Ni, are synthesized and studied for their activity in the oxygen evolution reaction in alkaline media. An increase in the intrinsic catalytic activity (obtained by the (RctCdl)−1 product) of the base material (Ba0.5Gd0.8La0.7Co2O6‐δ) is seen for an as high as 70 % substitution of
Henrik Petlund   +6 more
wiley   +1 more source

Perfluorinated Sulfonic Acid-Based Ionomers: Current State and Prospects. [PDF]

open access: yesPolymers (Basel)
Kozlov VA   +4 more
europepmc   +1 more source

A Fast and Highly Stable Aqueous Calcium‐Ion Battery for Sustainable Energy Storage

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Aqueous batteries provide a low‐cost, safer alternative to lithium‐ion batteries, but their viability is often limited by rapid electrode degradation. This study shows that replacing K+ with divalent Ca2+ ions in the electrolyte significantly boosts the stability of both copper hexacyanoferrate cathodes and polyimide anodes, enabling fast‐charging ...
Raphael L. Streng   +4 more
wiley   +1 more source

Revealing the Inhibitory Effect of Strong Metal Support Interactions on CO2 Poisoning in Urea Oxidation Reaction

open access: yesEcoEnergy, EarlyView.
The strong metal‐support interaction between sodium tungsten bronze and NiCo alloy reduces carbon dioxide adsorption, thereby mitigating catalyst poisoning and enabling a highly efficient and stable urea oxidation reaction. ABSTRACT The development of highly active urea oxidation reaction (UOR) catalysts with superior anti‐poisoning capability poses a ...
Zhixiang Zhai   +6 more
wiley   +1 more source

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