2025年1月21日 · Here, we report the Joule heating-assisted synthesis of a small sized Ru 1 Pt single-atom alloy catalyst loaded on nitrogen-doped carbon modified with single W atoms (s-Ru 1 Pt@W 1 /NC), in...

2025年1月22日 · In summary, the decreased oxidation states of Ru and W indicated that the electron density can be accumulated in the stable Ru−O−W motifs within the RZW catalysts after Zn dissolution. In contrast, solely doping Zn in RuO 2 cannot prevent Ru overoxidation, as it lacks highly electronegative W species to capture electrons. Similarly, solely ...

2025年2月10日 · The Ru/W 2 C catalyst shows superior mass activity (2163 mA mg PGM −1) in alkaline HOR, which is 12.52 and 20.62 times higher than that for Pt/C and Ru/C, respectively. Owing to the weak adsorption and fast removal rate of CO, the Ru/W 2 C exhibits outstanding CO tolerance, with 88% of the initial activity being retained in the durability ...

2023年7月12日 · 在此，采用晶格限制策略开发了具有原子分散的Ru-W对位点(Ru-W/WO 2-800)的Ru单原子掺杂WO 2纳米颗粒，旨在获得高效的碱性HER。 研究发现Ru–W/WO 2-800表现出显着的HER活性，其特点是低过电势（10 mA cm -2 时为11 mV ）、显着的质量活性（50 mV时 …

釕 （ liǎo ） （英語： Ruthenium ），是一種化學元素，其化學符號为Ru，原子序數为44，原子量為 101.07 u ，是在元素週期表中鉑族的稀有過渡金屬。釕與鉑族的其他金屬一樣，對大多數其他化學物質都是惰性的。

2022年5月1日 · When using Ru 2 P/C as the anodic electrocatalyst for APEFC, a peak power density of 1.3 W cm −2 was obtained, which is the highest record among Pt-free anodic electrocatalysts under the same condition, and even higher than commercial Pt/C in the small-polarization region.

2019年9月16日 · Here we measure the femtosecond two-photon absorption (2PA) cross section spectra of [Ru (2,2′-bipyridine) 3] 2 and [Ru (1,10-phenanthroline) 3] 2 in a series of solvents with varying...

duction of proximal Ru single atoms and remote W single atoms with oxygenophilic properties modulates the electronic structure of the tiny Pt nanoparticles, optimizes the HBE and OHBE, weakens...

4 天之前 · Herein, a small amount of Ru (0.5 wt%) together with W were used to co-modify CeZrO x through impregnation method to synthesize a novel NH 3 -SCO catalyst. The as-prepared Ru-W/CeZrO x catalyst could achieve a complete NH 3 conversion at 300 °C, and a superior N 2 selectivity, which exceeded 95.7 % over a wide temperature range of 225–400 °C.

2024年5月22日 · 从380nm~1050nm的可视光至近红外实现大范围波长区域中的分光测定. 奥林巴斯的近红外显微分光测定仪USPM-RU-W可以高速&高精细地进行可视光区域至近红外区域的大范围波长的分光测定。 由于其可以很容易地测定通常的分光光度计所不能测定的细微区域、曲面的反射率，因此十分适用于光学元件与微小的电子部件等产品。 实的测定功能. 使用一台即可进行反射率、膜厚、物体颜色、透过率、入射角45度反射率的各种分光测定。 测定反射率. 测定以物镜 …