H2-TPR profiles of the different Ru based catalysts
Fig. 1 shows the H2-TPR profiles of the different Ru based catalysts. From Fig.1, the TPR profile of Ru/KIT-6 catalyst exhibits a main H2 consumption peak with a maximum located at...
金属–载体强相互作用调控费托合成的反应性能- X-MOL资讯
2020年11月1日 · 通过H 2-TPR、EXAFS、CO脉冲吸附以及CO-DRIFTS等实验表征，发现催化剂经相同温度还原后所形成的金属–载体强相互作用以及Ru物种的还原与Ru的粒径尺寸密切相关。随着Ru的金属尺寸减小，Ru表面TiO x 包裹逐渐增强，而Ru
Ru-Based Catalysts for H2 Production from Ammonia: Effect of …
2018年11月10日 · Temperature programmed reduction (TPR) profiles of the different 7 wt% Ru catalysts are shown in Fig. 4. TPR curves are deconvoluted with no weighting method. In all cases, the pristine supports do not show any comparable reduction within the studied range of temperature. Ru particles in Ru/CeO 2 NR and Ru/Ti-NT catalysts are reduced at the ...
Effect of Ru loading on Ru/CeO2 catalysts for CO2 methanation
2021年10月1日 · The most active Ru/CeO 2 catalyst (with 2.5 wt.% Ru) is the catalyst where ruthenium cations are reduced at the lowest temperature in H 2-TPR experiments (even at room temperature), and is also the catalyst with the highest proportion of ruthenium cations with strong interaction with ceria, as deduced from XPS. XRD characterization suggests ...
H 2-TPR profiles of the bulk and supported RuO 2 catalysts.
H 2-TPR profiles of the bulk and supported RuO 2 catalysts. [...] Several Ru-Ti oxide-based catalysts were investigated for the catalytic oxidation of HCl to Cl2 in this work. The active...
H2-TPR of the different morphologies of 2.5%Ru/CeO2 catalysts
Three Ru/CeO2 catalysts with different morphologies of CeO2 (cube spheres, microspheres and nano rods) were used to evaluate the support-morphology-dependent ammonia synthesis activity.
一文读懂程序升温还原（TPR） - 知乎专栏
H2-TPR表征结果可一定程度反应MnOx，CeOx，CNTs的相互作用对催化剂还原性起到重要作用，直接体现于（NH3-SCR反应）催化剂活性。 （3）离子掺杂前后金属氧化物TPR[5]
Ru/HZSM-5 as an efficient and recyclable catalyst for reductive ...
2020年2月1日 · Ru/HZSM-5(46) exhibits the best catalytic performance of furfurylamine (76 % yield of 2a, entry 1) compared to the Pt, Pd and Rh based catalysts, demonstrating that Ru metal is in
H2-TPR表征结果分析 - 催化 - 小木虫 - 学术 科研 互动社区
H2-TPR表征结果如图所示：1、Ru/Al2O3与紫外灯照射后的Ru/Al2O3（除掉pvp）的比较，出峰位置及强度几乎吻合；2、Ru/Al2O3与单纯的Al2O3+pvp 比较，Al2O3+pvp样品没有还原峰。
The effect of supported Rh, Ru, Pt or Ir nanoparticles on activity …
2020年7月25日 · With this intention, we investigated the effects of the kind of supported metal (Ru, Rh, Pt or Ir), its loading and the kind of promoter (Y 2 O 3, La 2 O 3) for ZrO 2 on the activity and, particularly, on the selectivity-conversion relationships including coke formation in …