Oxygen and hydrogen evolution reactions on Ru, RuO2, Ir ...

20160315· Amount of dissolved metal from Ru, Ir, RuO 2, and IrO 2 electrodes during a potential scan from V RHE to 5 mA cm −2 into the region of OER as presented in Fig. 3. Electrolyte: M H 2 SO 4. The ratio of metal to oxide dissolution for both Ir and Ru is ca. 2 orders of magnitude. Similar differences between metallic Ru and RuO 2 were observed in steady state electrolysis measurements by ...


(PDF) Uncontinuously covered IrO2RuO2Ru …

20170725· Specifically, the overpotential of the IrO2RuO2Ru (3:1) catalyst at 10 mA cm2 is only 281 mV, and the turnover frequency (TOF) values of IrO2 …


Hızlı Tepkiler İçin Verimli iro2 Alın

Optimize edilmiş bir kimyasal reaksiyon için bu çok yönlü iro2 kullanın. Bu iro2, zamandan tasarruf etmek ve kimyasalların verimliliğini artırmak için reaksiyonu hızlandırır.


Preparation and evaluation of RuO2–IrO2, IrO2–Pt and …

20080906· IrO2–RuO2, IrO2–Pt and IrO2–Ta2O5 electrocatalysts were synthesized and characterized for the oxygen evolution in a Solid Polymer Electrolyte (SPE) electrolyzer. These mixtures were characterized by XRD and SEM. The anode catalyst powders were sprayed onto Nafion 117 membrane (catalyst coated membrane, CCM), using Pt catalyst at the cathode. The CCM procedure was …


Mechanism of oxygen reactions at porous oxide …

Part 2— Oxygen evolution at RuO 2, IrO 2 and Ir x Ru 1−x O 2 electrodes in aqueous acid and alkaline solution M. E. G. Lyons and S. Floquet, Phys. Chem. Chem. Phys., 2011, 13, 5314 DOI: /C0CP02875D


Electronic Structure of Rutile Oxides TiO2, RuO2 and IrO2 ...

20070117· Valence band Xray photoelectron spectra of the rutile oxides TiO 2, RuO 2, and IrO 2 show a distinct evolution as a function of the increasing number of metal observations are found to be in excellent agreement with recent theoretical models.


Oxygen and hydrogen evolution reactions on Ru, RuO2, Ir ...

It is found that independent of the electrolyte, OER activity decreases as Ru > Ir ≈ RuO 2 > IrO 2, while dissolution increases as IrO 2 ≪ RuO 2 < Ir ≪ Ru. Moreover, dissolution of these metals in both solutions is 2–3 orders of magnitude higher compared to their respective oxides, and dissolution is generally more intense in alkaline solutions. Similarly to the OER, metallic ...