Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Here, we report remarkable oxygen evolution reaction (OER) catalytic activity of brownmillerite (BM)-type Ca FeCoO . The OER activity of this oxide is comparable to or beyond those of the state-of-the-art perovskite (PV)-catalyst Ba Sr Co Fe O (BSCF) and a precious-metal catalyst RuO , emphasizing the importance of the characteristic BM structure with multiple coordination environments of transition metal (TM) species. Also, Ca FeCoO is clearly advantageous in terms of expense/laboriousness of the material synthesis. These facts make this oxide a promising OER catalyst used in many energy conversion technologies such as metal-air secondary batteries and hydrogen production from electrochemical/photocatalytic water splitting.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/cssc.201700499 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Advanced nitrogen-doped transition metal oxides decorated with Pt: synthesis and composition strategies for maximised electrochemical performance.
Dalton Trans
September 2025
University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, 11158 Belgrade, Serbia.
Developing efficient, low-cost catalysts for oxygen reduction and evolution reactions (ORR and OER) is key to advancing metal-air batteries and regenerative fuel cells. In this study, nitrogen-doped binary metal (Mn and Ni) oxides (N-BMOs) and Pt-decorated N-BMOs were synthesised using three methods and tested as ORR and OER catalysts in alkaline media. Their physicochemical properties were characterised by XRD, N-sorption, TEM, and XPS, while their electrochemical performance was evaluated using voltammetry and impedance spectroscopy.
View Article and Find Full Text PDFSpecies-specific behaviour and environmental drivers of trap interactions in wild ornamental fishes.
J Fish Biol
September 2025
School of Biodiversity, One Health & Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.
The harvest of animals from the wild is a pervasive selective force, especially in fisheries, where harvesting often targets individuals with specific traits. While most research has focused on large-scale commercial or recreational fisheries, little attention has been paid to artisanal fisheries, particularly those targeting ornamental species. Furthermore, environmental factors such as temperature and oxygen levels influence the behaviour of fishes, such as boldness and sociability, but their role in the harvesting process remains poorly understood.
View Article and Find Full Text PDFOxyphilic CeO mediated in situ reconstruction of amorphous/crystalline heterointerface with enhanced hydroxyl coverage and active sites leaching resistance for alkaline oxygen evolution.
J Colloid Interface Sci
September 2025
Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China. Electronic address:
Enhancing anodic hydroxyl (OH) coverage and suppressing leaching of active metal sites are essential for developing efficient and durable alkaline oxygen evolution reaction (OER) electrocatalysts. Herein, we propose amorphous cerium oxide (CeO)-mediated amorphous/crystalline heterointerface engineering to enhance OH coverage and leaching resistance in CeO/Mo-NiS for high-performance OER. CeO with an oxyphilic surface facilitates OH adsorption, promoting in situ reconstruction of NiS into nickel hydroxyl oxide (NiOOH) with significantly enhanced OH coverage and thereby accelerating OER kinetics.
View Article and Find Full Text PDFQuantifying the Reduction of OER Overpotential on Magnetic Electrocatalysts Under Magnetic Fields.
Small Methods
September 2025
School of Physics and Optoelectronics, South China University of Technology, Wushan Road 381, Guangzhou, 510640, China.
Magnetic-field enhancement of the oxygen evolution reaction (OER) represents a promising route toward more efficient alkaline water electrolyzers, yet its origin remains debated due to overlapping effects of mass transport and reaction kinetics. Here, we present a general experimental strategy that employs strong forced convection to suppress uncontrolled transport arising from natural diffusion and magnetohydrodynamic (MHD) flows. Using polycrystalline Au electrodes, we show that this approach resolves subtle OER variations under controlled flow and field conditions.
View Article and Find Full Text PDFFerromagnetic Surface Segregation via Stress-Concentration Coupling Boosts the Oxygen Evolution Reaction in RuO.
ACS Nano
September 2025
Materials Genome Institute, Shanghai University, Shanghai 200444, China.
RuO, the benchmark catalyst for the oxygen evolution reaction (OER), has traditionally been considered Pauli paramagnetic; however, recent findings have demonstrated its antiferromagnetic (AFM) properties, hinting at the opportunity to enhance RuO's OER performance by manipulating its magnetic traits. In this study, we successfully induced weak ferromagnetism in commercial RuO, transitioning it from an AFM state using an electrochemical sodiation method. This process resulted in high activity, achieving an overpotential of 145 mV to reach 10 mA cm and extending the service hours by more than 13 times compared to pristine RuO in 0.
View Article and Find Full Text PDF