2025年2月1日 · To solve this challenge, herein, we developed a regulatory strategy combining lanthanide oxides and metal oxidative reconfiguration. The introduction of Eu 2 O 3 effectively promotes the adsorption of H 2 O, optimizes the adsorption energy of OOH*, and reduces the reaction energy barrier of acidic OER process.

2006年4月12日 · The Gibbs free energies of formation of Eu 3 RuO 7 (s) and Eu 2 Ru 2 O 7 (s) have been determined using solid-state electrochemical technique employing oxide ion conducting electrolyte. The reversible electromotive force (e.m.f.) of the following solid-state electrochemical cells have been measured:

2015年1月27日 · The magnetic and electronic properties of Eu 2 Ru 2 O 7 are discussed in terms of the local ruthenium and europium coordination, electronic band structure calculations, and molecular orbital energy levels.

2023年5月15日 · Ru 0.9 Eu 0.1 O x @TP enhances catalytic selectivity and stability towards chlorine evolution reaction. Doping rare earth metal Eu into RuO2 causes a strong charge redistribution between Eu and Ru. The DFT calculations prove that the doped Eu could improve the adsorption ability with OCl and suppress OOH intermediates.

2023年1月5日 · Density functional theory calculations demonstrate that active Ru O Co bonds in α-Co(OH) 2 @Ru optimize the energy barriers for H 2 O dissociation and OH − desorption to facilitate the Volmer reaction step. This work offers a strategy for designing interfacial chemical bonds for high electrocatalytic activity.

理论计算和原位光谱发现，Eu2O3 的诱导通过构建 Ru（3d）-O（2p）-Eu（4f） 的梯度轨道耦合优化了 Ru 位电子结构，从而产生了最佳的 H 中间体，提高了 OH 的吸附能力，降低了水形成的能垒，促进了 CO 氧化， 赋予 Ru/Eu2O3 作为快速碱性氢电氧化的有前途的催化剂 ...

2021年2月4日 · 本文, 利用一系列稀土元素(Nd、Sm、Gd、Er 和Yb)构建了烧绿石型稀土钌酸盐(RE 2 Ru 2 O 7)结构来调整Ru位点 的电子结构. 表面结构分析表明, 由于Ru–O键杂化减弱, 随着稀土 离子半径的增大, RE 2 Ru 2 O 7 结构中缺陷氧含量增加(缺陷氧的比例 从29.5%增加到49.7%).

2023年11月15日 · Exploring the relationship between A-site atoms and the ruthenium pyrochlore oxides (A 2 Ru 2 O 7) structure is crucial for designing efficient electrocatalysts for acidic water oxidation. Here, we manipulate A-site atoms by introducing lanthanide elements (Nd, Sm, Eu, and Ho) in a rational manner.

本文提出了一种局部微环境调节策略，用于精确调节具有显著电化学活性和稳定性的In-RuO2/石墨烯 (In-RuO2/G)催化剂，以促进酸性水的氧化。 In-RuO2/G在1.5 V下的质量活度为671 A gcat−1，在10 mA cm−2下的过电位为187 mV，在100 mA cm−2下的持久稳定性为350 h，这是由不对称的Ru-O-In局部结构相互作用引起的。 进一步从理论上揭示了不对称的Ru-O-In结构打破了传统吸附演化机制的热力学活度极限，显著削弱了OOH*的形成能垒，从而诱发了*OH吸收的新 …

2025年1月2日 · Ruthenium oxide (RuO 2), the second-most attractive option for OER catalysts, offers advantages, including the relatively high reserves and low cost of Ru compared with Ir, as well as high activity (23 – 26). However, the poor stability of RuO 2 prevents practical applications.