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Journal ArticleDOI

Electrocatalytic Oxygen Evolution Reaction (OER) on Ru, Ir, and Pt Catalysts: A Comparative Study of Nanoparticles and Bulk Materials

Tobias Reier, +2 more
- 23 Jul 2012 - 
- Vol. 2, Iss: 8, pp 1765-1772
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TLDR
In this article, the intrinsic catalytic activity and durability of carbon supported Ru, Ir, and Pt nanoparticles and corresponding bulk materials for the electrocatalytic oxygen evolution reaction (OER) were examined by surface-sensitive cyclic voltammetry.
Abstract
A comparative investigation was performed to examine the intrinsic catalytic activity and durability of carbon supported Ru, Ir, and Pt nanoparticles and corresponding bulk materials for the electrocatalytic oxygen evolution reaction (OER). The electrochemical surface characteristics of nanoparticles and bulk materials were studied by surface-sensitive cyclic voltammetry. Although basically similar voltammetric features were observed for nanoparticles and bulk materials of each metal, some differences were uncovered highlighting the changes in oxidation chemistry. On the basis of the electrochemical results, we demonstrated that Ru nanoparticles show lower passivation potentials compared to bulk Ru material. Ir nanoparticles completely lost their voltammetric metallic features during the voltage cycling, in contrast to the corresponding bulk material. Finally, Pt nanoparticles show an increased oxophilic nature compared to bulk Pt. With regard to the OER performance, the most pronounced effects of nanosca...

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Journal ArticleDOI

Electrocatalysis for the oxygen evolution reaction: recent development and future perspectives

TL;DR: This review acquaints some materials for performing OER activity, in which the metal oxide materials build the basis of OER mechanism while non-oxide materials exhibit greatly promising performance toward overall water-splitting.
Journal ArticleDOI

Recent Trends and Perspectives in Electrochemical Water Splitting with an Emphasis on Sulfide, Selenide, and Phosphide Catalysts of Fe, Co, and Ni: A Review

TL;DR: In this article, the hydrogen (H2) and oxygen (O2) fuel cell is the one with zero carbon emission and water as the only byproduct, which is essential to ensure higher life cycle and less decay in cell efficiency.
Journal ArticleDOI

Oxygen electrochemistry as a cornerstone for sustainable energy conversion

TL;DR: A promising strategy to develop such an understanding is the investigation of the impact of material properties on reaction activity/selectivity and on catalyst stability under the conditions of operation, as well as the application of complementary in situ techniques for the Investigation of catalyst structure and composition.
Journal ArticleDOI

Electrocatalytic oxygen evolution reaction for energy conversion and storage: A comprehensive review

TL;DR: In this paper, a review article summarizes the very recent efforts in the field of OER electrocatalysis along with the faced challenges and solutions to these challenges also outline with appropriate examples of scientific literatures.
Journal ArticleDOI

Electrically Rechargeable Zinc–Air Batteries: Progress, Challenges, and Perspectives

TL;DR: The reaction mechanism of electrically rechargeable zinc-air batteries is discussed, different battery configurations are compared, and an in depth discussion is offered of the major issues that affect individual cellular components, along with respective strategies to alleviate these issues to enhance battery performance.
References
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Journal ArticleDOI

Particle size distribution and dislocation density determined by high resolution X-ray diffraction in nanocrystalline silicon nitride powders

TL;DR: In this paper, two silicon nitride powders were investigated by high-resolution X-ray diffraction and their particle size and dislocation density were obtained by the recently developed modified Williamson-Hall and Warren-Averbach procedures.
Journal ArticleDOI

Adsorption of bisulfate on the Ru(0001) single crystal electrode surface

TL;DR: In this article, the bisulfate adsorption is detected at the H 2 evolution potential and extends into the potential region where the Ru surface is oxidized, and the tuning rate of adsorbed bisulfates in the double layer potential region of Ru(0001) was found to be significantly smaller than those observed for other platinum metals.
Journal ArticleDOI

Particle Size Dependence of the Electrocatalytic Activity of Nanocrystalline RuO2 Electrodes

TL;DR: In this article, the effect of nanocrystal size/shape on the electrocatalytic behavior of polygonal prismatic oxide electrodes was demonstrated on electrodes based on sol-gel-prepared RuO 2 materials.
Journal ArticleDOI

Electron Transfer Through Thin Anodic Oxide Films during the Oxygen Evolution Reactions at Pt Electrodes: I . Acid Solutions

TL;DR: In this paper, the authors present a method for the synthesis of a new type of graphite called graphite-based graphite, which they call graphite graphite (Graphite Graphite), and present in the Journal of the Electrochemical Society (JES).
Journal ArticleDOI

Iridium Anodic Oxidation to Ir(III) and Ir(IV) Hydrous Oxides

TL;DR: In this article, the authors used cyclic voltammetry and chronopotentiometry to find out the reasons of super-Nernstian pH-sensitivity of iridium oxide films.
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