2018年8月9日 · Synergy effect of Ru, TM and TMO improves catalytic hydrogenation performance. The multi-metallic nanocatalysts of ruthenium nanoclusters-on-transition metal/transition metal oxide nanoparticles (TM/TMO NPs) then supported on carbon (Ru/Ni/NiO/C or Ru/Co/Co 3 O 4 /C) were designed and synthesized.

Following the route paved by Ru-based Li-rich cathode materials, we hereby present a first-principles investigation of a Ru-doped Na x TMO 2 (TM = Ru, Ni, and Mn) system and the related structural and electronic properties of interest for NIB applications. We aim to dissect the specific role of each element sublattice in compensating the ...

2024年10月1日 · We focus on the recent progress of Ru-containing cathode materials and make a detailed summary in this review. At first, we attempt to combine and elucidate the relationship between oxygen and Ru redox. Subsequently, the up-to-date materials of Ru-based cathode materials for Li + /Na + batteries are concluded systematically.

2025年1月1日 · The Ru-Na interfacial sites facilitate CO 2 migration through a deoxygenation pathway, involving carbonate dissociation, carbonyl formation, and hydrogenation.

2024年10月2日 · Herein, P2-type layered manganese and ruthenium oxide is synthesized as an outstanding intercalation cathode material for high-energy density Na-ion batteries (NIBs). P2-type sodium deficient transition metal oxide structure, Na 0.67 Mn 1-x Ru x O 2 cathodes where x varied between 0.05 and 0.5 are fabricated.

2019年5月3日 · DFT reveals that whereas SrRuO 3 binds reaction intermediates too strongly, Na doping of ~0.125 leads to nearly optimal OER activity. Na doping increases the oxidation state of Ru, thereby...

2023年3月13日 · A Ru/Ti co-doping strategy is developed to address the issue, where the doped active Ru is first oxidized to create a selective desodiation and the doped inactive Ti can function as a pillar to avoid complete desodiation in Ru-contained TM layers, leading to the suppression of the Na-free layer formation and subsequent enhanced electrochemical ...

所有研究的Ru-M合金纳米粒子都表现出比纯Ru纳米粒子更高的OER活性，其中Ru 1- x Ir x /C ( x= 0.3–1) 催化剂被发现是最活跃的。 所有研究的Ru-TM 氧化物纳米粒子都表现出比相应的Ru-TM 合金纳米粒子更高的OER 活性，其中30-50 原子％的Co 掺杂RuO 2 /C 催化剂是最活跃的。

2023年1月25日 · A Ru/Ti co-doping strategy is developed to address the issue, where the doped active Ru is first oxidized to create a selective desodiation and the doped inactive Ti can function as a pillar to avoid complete desodiation in Ru-contained TM layers, leading to the suppression of the Na-free layer formation and subsequent enhanced electrochemical ...

Through first-principles calculations of 38 types of Na-rich Na 2 MO 3 compounds (M = 3d, 4d, and 5d TMs and post-TMs), Jung et al. reported that eight Na 2 MO 3 compounds (M = Mo, Tc, Ru, Rh, W, Pt, Ir and Pd) could serve as stable cathode candidates for SIBs with possible energy densities of up to 747 W h kg −1. 35 Consecutive phase ...