Calculation of the Tafel slope and reaction order of the oxygen evolution reaction between pH 12 and pH 14 for the adsorbate mechanism, Catalysis, ChemRxiv
4.9 (112) In stock
Despite numerous experimental and theoretical studies devoted to the oxygen evolution reaction, the mechanism of the OER on transition metal oxides remains controversial. This is in part owed to the ambiguity of electrochemical parameters of the mechanism such as the Tafel slope and reaction orders. We took the most commonly assumed adsorbate mechanism and calculated the Tafel slopes and reaction orders with respect to pH based on microkinetic analysis. We demonstrate that number of possible Tafel slopes strongly depends on a number of preceding steps and surface coverage. Furthermore, the Tafel slope becomes pH dependent when the coverage of intermediates changes with pH. These insights complicate the identification of a rate-limiting step by a single Tafel slope at a single pH. Yet, simulations of reaction orders complementary to Tafel slopes can solve some ambiguities to distinguish between possible rate-limiting steps. The most insightful information can be obtained from the low overpotential region of the Tafel plot. The simulations in this work provide clear guidelines to experimentalists for the identification of the limiting steps in the adsorbate mechanism using the observed values of the Tafel slope and reaction order in pH-dependent studies.
Simulated behavior of the Tafel relation for the hydrogen evolution
Electrocatalysis for the oxygen evolution reaction: recent development and future perspectives - Chemical Society Reviews (RSC Publishing) DOI:10.1039/C6CS00328A
Potential-dependent OER performance on dual-Fe-Ir sites by grand canonical based constant charge method - ScienceDirect
Microkinetic assessment of electrocatalytic oxygen evolution reaction over iridium oxide in unbuffered conditions - ScienceDirect
Frontiers Recent progress in noble-metal-free electrocatalysts for alkaline oxygen evolution reaction
Water electrolysis Nature Reviews Methods Primers
PDF) Calculation of the Tafel slope and reaction order of the oxygen evolution reaction between pH 12 and pH 14 for the adsorbate mechanism
PDF) Calculation of the Tafel slope and reaction order of the oxygen evolution reaction between pH 12 and pH 14 for the adsorbate mechanism
Towards molecular understanding of local chemical environment effects in electro- and photocatalytic CO2 reduction
Hydrogen evolution reaction from bare and surface-functionalized few-layered MoS2 nanosheets in acidic and alkaline electrolytes - ScienceDirect
Tafel Slope Analysis from Inherent Rate Constants for Oxygen Reduction Reaction Over N-doped Carbon and Fe–N-doped Carbon Electrocatalysts
- EQWLJWE Women's Bra Underwear Removable Shoulder Strap Daily Comfort Bra Underwear True Bras For Women
- $84 Victorias Secret Dream Angels Secret Garden Caged Rose Balconette 32B Bra
- Bra By Trina: Sports Bras for Big Busts. Nike CA
- Streamlined Shape: Over 2,844 Royalty-Free Licensable Stock
- 2-Pack Men's Incontinence Underwear Cotton Regular Absorbency Reusable Washable Urinary Incontinence Briefs for Prostate Surgical, Elder, Long Driving : : Health & Personal Care
- 42C THE CHIC HOTEL $36 ($̶5̶5̶) - Prices & Reviews - Nakhon Sawan, Thailand