![]() ![]() A fact that cannot be neglected is that most active sites on the surface of catalyst would undergo structural self-reconstruction due to the electro-derived structural oxidation processes 4, 33. They undergo surface self-reconstruction to form oxyhydroxides under OER conditions, providing abundant oxygen ligands for the anchoring of isolated atoms 18, 19. However, using metal phosphides as a support to anchor single-atom are still rare. The introduction of single atoms can largely improve the OER performance of support materials, such as carbon materials 27, 28, 29, 30, metals 31, and metal oxide 32. Single-atom catalysts (SACs) offer a favorable pathway to maximize the catalytic activity while significantly reducing the amount of metals for chemical reactions 26, 27, 28, 29, 30, 31, 32. Thus, it is highly desirable to improve these OER systems, thus achieving high energy efficiency and cost-effectiveness in alkaline electrolysis. However, their catalytic performance remains far from satisfactory. Though great efforts have been made to develop the earth-abundant transition-metal-based catalysts, including metal oxides or hydroxides 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, borides 15, 16, phosphides 17, 18, 19, 20, 21, sulfides 22, 23, and selenides 24, 25, as low-cost alternative for OER. Currently, precious metal oxides, iridium (Ir), and ruthenium (Ru) oxides are the highly efficient OER electrocatalysts but suffer from relative scarcity and high-cost 4. However, the bottleneck in improving water electrolysis is mainly caused by sluggish reaction kinetics at the anode, where water is oxidized and the oxygen evolution reaction (OER) occurs 2, 3. Similar content being viewed by othersĮlectrocatalytic water splitting for hydrogen and oxygen production provides an attractive path to obtain sustainable energy via the conversion and storage of intermittent solar and wind energies 1, 2. This work not only affords the rational design strategy of OER SACs at the atomic scale, but also provides the fundamental insights of the operando OER mechanism for highly active OER SACs. The isolated iridium sites are revealed to remain dispersed due to the support effect during OER. Operando X-ray absorption spectroscopy studies in combination with theory calculations indicate that the isolated iridium sites undergo a deprotonation process to form the multiple active sites during OER, promoting the O–O coupling. Here, we utilize a self-reconstruction strategy to prepare a SAC with isolated iridium anchored on oxyhydroxides, which exhibits high catalytic OER performance with low overpotential and small Tafel slope, superior to the IrO 2. However, the self-reconstruction of isolated active sites during OER not only influences the catalytic activity, but also limits the understanding of structure-property relationships. We offer our R&E Urethane Basecoat paint in a Touch Up Kit (comes with 1/2 oz bottle of Primer, Color, and Clear-Coat), 11 oz Aerosol Spraycan, or Ready to spray (pre-reduced) Options: 8 oz can, Pint can, Quart can, or Gallon can.Designing efficient single-atom catalysts (SACs) for oxygen evolution reaction (OER) is critical for water-splitting. Clear-coat is required with R&E Urethane Basecoat Paint for correct gloss and exterior durability. The R&E Low VOC Urethane Basecoat paint exhibits exceptional color accuracy and excellent coverage and is specifically designed for all Automotive Refinish Applications. Ready to spray (Pre-Reduced) Options: 8 oz can, Pint can, Quart can, or Gallon can.ħ75, Iridium Bright Silver Metallic for Chrysler is formulated using R&E Low VOC Urethane Basecoat paint.Touch Up Kit (comes with 1/2 oz bottle of Primer, Color, and Clear-Coat).R&E Low VOC Urethane Basecoat Paint (Clear-Coat is required for gloss and durability).Paint Code 775, Iridium Bright Silver Metallic for Chrysler.Chrysler 775, Iridium Bright Silver Metallic ![]()
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