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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Flower–like Ni and N codoped hierarchical porous carbon microspheres with enhanced performance for fuel cell storage
TL;DR: In this paper, a novel cost-effective flower-like Ni and N codoped hierarchical porous carbon microspheres (denoted as F-Ni/N-HPCMs) electrode has been fabricated by a simple two-step method.
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Recent developments of Iridium-based catalysts for oxygen evolution reaction in acidic water electrolysis
Hongxiang Wu,Yibo Wang,Zhaoping Shi,Xue Wang,Jiahao Yang,Meiling Xiao,Junjie Ge,Wei Xing,Changpeng Liu +8 more
TL;DR: Proton exchange membrane water electrolysis (PEMWE) is one of the central technologies to enable the widespread usage of the intermittent renewable energy, thereby solving problems caused by the global warming as discussed by the authors .
Journal ArticleDOI
Enhanced oxygen evolution reaction on amine functionalized graphene oxide in alkaline medium
TL;DR: In this paper, a metal-free tyramine functionalized graphene oxide (T-GO) was proposed to use in alkaline electrolytes for enhanced oxygen evolution reaction (OER) electrocatalysts.
Journal ArticleDOI
Cobalt iron phosphide nanoparticles embedded within a carbon matrix as highly efficient electrocatalysts for the oxygen evolution reaction
TL;DR: Ultra-small and uniformly distributed Co3FePx/C nanoparticles in carbon exhibit excellent durability and outstanding OER catalytic activity.
Journal ArticleDOI
Coordination polymer derived cobalt embedded in nitrogen-doped carbon nanotubes for efficient electrocatalysis of oxygen evolution reaction
Jingkun Cong,Changqing Li,Tao Zhao,Jin Wu,Rui Zhang,Wenjing Ren,Shunli Wang,Junkuo Gao,Junkuo Gao,Yi Liu,Yi Liu,Juming Yao +11 more
TL;DR: In this paper, the fabrication of Co-embedded nitrogen-doped carbon nanotube (Co-NCNT) by using Co-melamine coordination polymer (CP) as precursor was reported.
References
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Journal ArticleDOI
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Journal ArticleDOI
Universality in Oxygen Evolution Electrocatalysis on Oxide Surfaces
Isabela C. Man,Hai-Yan Su,Federico Calle-Vallejo,Heine Anton Hansen,José I. Martínez,Nilay İnoğlu,John R. Kitchin,Thomas F. Jaramillo,Jens K. Nørskov,Jan Rossmeisl +9 more
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Journal ArticleDOI
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