Recent advances in Ru/Ir-based electrocatalysts for acidic oxygen evolution reaction

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 343, P. 123584 - 123584

Published: Dec. 1, 2023

The electrocatalytic process of water splitting offers a promising approach to produce sustainable hydrogen. However, the slow kinetics oxygen evolution reaction (OER) presents notable challenge, especially in acidic environment proton exchange membrane (PEM) systems. Despite extensive progress made catalyst development for hydrogen production through electrolysis last century, significant advancements have been accomplished. quest OER catalysts that possess both high activity and stability, while also being affordable, continues be challenging. Currently, Ru/Ir-based electrocatalysts are only practical anode available. Therefore, it is crucial explore feasible strategies enhance performance longevity catalysts. This review comprehensive assessment obstacles prospective Additionally, underscores areas research concentration, providing valuable perspectives future endeavors development.

Language: Английский

---

Non-noble metal-based electro-catalyst for the oxygen evolution reaction (OER): Towards an active & stable electro-catalyst for PEM water electrolysis

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 58, P. 556 - 582

Published: Jan. 26, 2024

Language: Английский

---

Asymmetric active sites originate from high-entropy metal selenides by joule heating to boost electrocatalytic water oxidation

Joule, Journal Year: 2024, Volume and Issue: 8(8), P. 2342 - 2356

Published: June 25, 2024

Language: Английский

---

Progress in metal oxide-based electrocatalysts for sustainable water splitting

Materials Reports Energy, Journal Year: 2024, Volume and Issue: 4(3), P. 100283 - 100283

Published: July 19, 2024

Metal oxide-based electrocatalysts are promising alternatives to platinum group metals for water splitting due their low cost, abundant raw materials, and impressive stability. This article covers recent progress in various types of metal oxides tailored hydrogen oxygen evolution reactions, discussing crystal structure, composition, surface morphology influence on performance. Strategies like engineering, doping, nanostructuring evaluated enhancing catalytic activity The key considerations commercialization highlighted, emphasizing ongoing research, innovation, future scope drive widespread adoption water-splitting technology a cleaner sustainable future.

Language: Английский

---

Supply and demand of platinum group metals and strategies for sustainable management

Renewable and Sustainable Energy Reviews, Journal Year: 2024, Volume and Issue: 204, P. 114821 - 114821

Published: Aug. 10, 2024

Language: Английский

---

Evidence of dark oxygen production at the abyssal seafloor

Nature Geoscience, Journal Year: 2024, Volume and Issue: 17(8), P. 737 - 739

Published: July 22, 2024

Abstract Deep-seafloor organisms consume oxygen, which can be measured by in situ benthic chamber experiments. Here we report such experiments at the polymetallic nodule-covered abyssal seafloor Pacific Ocean oxygen increased over two days to more than three times background concentration, from ex incubations attribute nodules. Given high voltage potentials (up 0.95 V) on nodule surfaces, hypothesize that seawater electrolysis may contribute this dark production.

Language: Английский

---

Development of an ultra-thin electrode for the oxygen evolution reaction in proton exchange membrane water electrolyzers

Renewable Energy, Journal Year: 2024, Volume and Issue: 224, P. 120159 - 120159

Published: Feb. 15, 2024

Language: Английский

---

Cr-induced enhancement of structural stability in δ-MnO2 for aqueous Zn-ion batteries

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 986, P. 174041 - 174041

Published: March 3, 2024

Language: Английский

---

N, P co-doped NiMoOx three-dimensional nanoflower cluster-structured bifunctional electrocatalyst for efficient overall water splitting

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 178510 - 178510

Published: Jan. 1, 2025

Language: Английский

---

Vertical β-MnO₂@δ-MnO₂ Core–Shell Heterostructures with Superior Cycling Stability for All-in-One Flexible Supercapacitors

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

β-MnO2, as the most stable phase of polycrystalline MnO2, has a narrow tunnel structure that limits ion diffusion and electron transfer, restricting its application in supercapacitors. In this work, we present novel all-in-one MnO2-based material, β-MnO2@δ-MnO2, featuring unique three-dimensional architecture with ultrathin δ-MnO2 nanostructures vertically grown on β-MnO2 network. This innovative design leverages structural support to enhance electrode material's specific surface area effectively mitigate volume changes during adsorption/desorption, key factor for improving cycling stability. As result, β-MnO2@δ-MnO2 composite demonstrates exceptional electrochemical performance, remarkable stability 98% capacitance retention after 10,000 cycles. Additionally, it maintains 74.2% when current density increases from 1.0 20 A g–1, showcasing an outstanding rate capability. When assembled into asymmetric supercapacitor device, electrodes deliver high 287.3 mF cm–2 significant energy 159.3 μWh cm–2. work represents advancement optimization applications, demonstrating practical benefits rational nanostructure design. The not only enhances performance storage devices but also holds potential other offering new opportunities development flexible, high-performance systems.

Language: Английский

---