Journal ArticleDOI
Electrocatalytic Oxygen Evolution Reaction (OER) on Ru, Ir, and Pt Catalysts: A Comparative Study of Nanoparticles and Bulk Materials
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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...read more
Citations
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Recent Progress in Bifunctional Electrocatalysts for Overall Water Splitting under Acidic Conditions
Journal ArticleDOI
Fabrication of NiO Microflake@NiFe-LDH Nanosheet Heterostructure Electrocatalysts for Oxygen Evolution Reaction
Suchada Sirisomboonchai,Shasha Li,Shasha Li,Akihiro Yoshida,Xiumin Li,Chanatip Samart,Abuliti Abudula,Guoqing Guan +7 more
TL;DR: The development of highly efficient eletrocatalysts for water electrolysis application is a rising hot issue; especially the oxygen evolution reaction (OER) attracted wide attention due to the sign as mentioned in this paper.
Journal ArticleDOI
Perovskite-based bifunctional electrocatalysts for oxygen evolution and oxygen reduction in alkaline electrolytes
TL;DR: In this paper, a bifunctional oxygen electrode with simultaneous activity for the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR) was synthesized by direct growth of nitrogen-doped carbon nanotubes on the surface of a perovskite containing Co and Fe by means of chemical vapor deposition.
Journal ArticleDOI
Detecting structural transformation of cobalt phosphonate to active bifunctional catalysts for electrochemical water-splitting
Arindam Indra,Arindam Indra,Prashanth W. Menezes,Ivelina Zaharieva,Holger Dau,Matthias Driess +5 more
TL;DR: In this paper, a novel class of bifunctional single-source precursors for highly efficient alkaline electrochemical O2 evolution (OER) and H2 evolution reaction (HER) is presented.
Journal ArticleDOI
MOF derived carbon based nanocomposite materials as efficient electrocatalysts for oxygen reduction and oxygen and hydrogen evolution reactions
TL;DR: There has been a recent spurt in reports on metal-organic frameworks (MOFs) derived carbon-based materials as electrocatalysts as discussed by the authors, which has shown excellent potential in the catalysis of such electrochemical reactions.
References
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Journal ArticleDOI
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Journal ArticleDOI
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