source:TOHOKU UNIVERSITYElectrocatalysis is a key technology for sustainable energy, and understanding how catalysts work is crucial for improving their performance. One of the challenges in using platinum (Pt) as a catalyst for the oxygen reduction reaction (ORR) in fuel cells is that it reacts too slowly and doesn't work efficiently enough. A promising solution is to adjust the surface of the catalyst to improve its activity."We can enhance the performance of platinum by tuning its surface structure, which helps it react more efficiently," says Di Zhang, a specially appointed a...
Release time:
2025
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source:Tohoku UniversityAn international group of researchers has developed a novel approach that enhances the efficiency of the oxygen evolution reaction (OER), a key process in renewable energy technologies. By introducing rare earth single atoms into manganese oxide (MnO2), the group successfully modulated oxygen electronic states, leading to unprecedented improvements in OER performance.Their findings are published in the journal Nano Energy.Transition-metal-based oxides have been widely explored for their potential as active OER catalysts. However, the capacity of these catalysts is hinde...
Release time:
2024
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source:phys.orgA research team has developed high-performance diamond/ε-Ga2O3 heterojunction pn diodes based on ultrawide bandgap semiconductors, achieving breakdown voltages exceeding 3 kV. This work was published in Nano Letters.The research was led by Prof. Ye Jichun from the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences (CAS), together with researchers from Zhengzhou University, Nanjing University, Harbin Institute of Technology, and Yongjiang Laboratory.Ultrawide bandgap semiconductors including Ga2O3 and diamond demonstrate notable po...
Release time:
2024
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Dinuclear Rare-Earth β-Diketiminates with Bridging 3,5-Ditert-butyl-catecholates: Synthesis, Structure, and Single-Molecule Magnet Properties source:ACS PublicationsAbstract ImageThe dinuclear β-diketiminato complex [L1ClDy(μ-Cl)3DyL1(THF)] (1) (L1 = {2,6-iPr2C6H3–NC(Me)CHC(Me)N-2,6-iPr2C6H3}−) was obtained by reaction of DyCl3 with KL1 in a molar ratio of 1:1 and used for the preparation of the mixed-ligand complex [L1Dy(μ-3,5-Cat)]2 (2) by salt metathesis reaction with 3,5-CatK2 (3,5-Cat −3,5-di-tert-butyl-catecholate). Reactions of 3,5-CatNa2 with [L2LnCl2(THF)2] (Ln3+ = Dy, Y) ...
Release time:
2024
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