Oxygen evolution reactionCarbon nanotubesIron oxideDensity functional theoryHematite, 伪-Fe 2 O 3 , has long been considered a potential photoanode material in a photo-electrochemical device. Here we examine from a computational point of view the possibility to improve the material's water-splitting ...
which is used in many industrial applications. This alloy is found to be active toward oxygen evolution reaction (OER), and the OER onset coincides with the loss of passivity and severe metal dissolution. The OER mechanism involves the oxidation of Mo4+ sites in the oxide film to Mo6+ that...
This article has beenupdated Abstract The oxygen evolution reaction (OER) is of prime importance in multiple energy storage devices; however, deeper mechanistic understanding is required to design enhanced electrocatalysts for the reaction. Current understanding of the OER mechanism based on oxygen adsorpt...
The oxygen evolution reaction (OER) is the essential module in energy conversion and storage devices such as electrolyzer, rechargeable metal–air batteries and regenerative fuel cells. The adsorption energy scaling relations between the reaction intermediates, however, impose a large intrinsic overpotential...
The poor activity and stability of electrode materials for the oxygen evolution reaction are the main bottlenecks in the water-splitting reaction for H2 production. Here, by studying the activity–stability trends for the oxygen evolution reaction on con
with oxygen evolution reaction (OER) or oxidation of some chemical fuels. One of the important reasons that keeps these systems from being of practical use to date is the sluggish kinetics (high overpotential (Z), Z a > Z c , Fig. 1) of the oxygen evolution reaction. OER is a four ...
Fig. 5. The asymmetric thermodynamic free-energy landscape of the oxygen evolution reaction (OER), assuming that the formation of the O adsorbate corresponds to the limiting step (RDS) at ηOER = 0.3 eV. Please note that, for simplicity, the indicated ΔGj values in the figure refer to ...
Electricity-driven proton exchange membrane water electrolyzers are a promising technology to produce dihydrogen gas (H2). However, this technology is limited by the anodic oxygen evolution reaction that controls the overall operation efficiency, since only few electrocatalysts are efficient under the stron...
An Oxygen Evolution Reaction (OER) catalyst includes a metal oxide that includes oxygen, cerium, and one or more second metals. In some instances, the cerium is 10 to 80 molar % of
However, the high-efficiency water splitting is limited by the sluggish kinetics of the anodic oxygen evolution reaction (OER). Metal–organic frameworks (MOFs) have been extensively utilized as precursors to synthesize high-performance electrocatalysts. Herein, a facile template-engaged strategy is ...