Oxophilic effect
WebThe effects of millimolar concentrations of oxalic acid were analysed on A. thaliana seedlings. A treatment with a 3 mM oxalic acid solution does not alter the development of … WebSome have suggested that the enhanced activity of these catalysts originates from the increased oxophilicity of the alloyed metal. In particular, Markovic and co-workers 5 have theoretically proposed that OH ad is a key reactant species in HOR, and that the presence of a more oxophilic metal should improve the reaction kinetics and activity of Pt.
Oxophilic effect
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WebNov 20, 2015 · It is also attributed to the oxophilic effect of Te, accelerating water dissociation kinetics through a bifunctional catalytic mechanism in alkaline media. Density functional theory calculations further reveal that such synergistic effects lead to reduced free energy for an efficient water dissociation process, resulting in remarkable HER ... WebJun 14, 2024 · Understanding the oxophilic effect on the hydrogen electrode reaction through PtM nanostructures Semantic Scholar Carbon-supported PtM nanostructured …
Weboxyphilic: ( ok'sē-fil'ik ), Having an affinity for acid dyes; denoting certain cell or tissue elements. Synonym(s): oxyphil (3) , oxyphile WebJun 14, 2024 · The oxophilic effect of PtNi/C, PtCo/C, PtCu/C, Pt/C, PtCr/C, Mo-Pt/C, Pt-Y 2 O 3 /C, Pt-Sm 2 O 3 /C, and Pt-Gd 2 O 3 /C nanostructures, prepared by carbonyl complex …
WebAug 7, 2012 · Another example is when a bimetallic alloy is composed of a noble metal and an oxophilic metal, in which OH* bound to the oxophilic metal can act as a Brønsted acid that can catalyze dehydration and hydrogenolysis reactions. ... Further investigations studied the effect of the position and form of the alloy as well as the relationship between ... WebJan 15, 2024 · The oxophilic effect is favored for the HER/HOR in alkaline electrolyte. • The catalytic center's strain effect is found in the nanoalloy itself. Keywords PtNi nanoalloys Hydrogen electrode reaction Oxygen reduction reaction Alkaline medium 1. Introduction
WebFeb 10, 2024 · The influence of OH ad for activity enhancement is still debatable. However, it is certain that the surface composition greatly affects the HOR/HER process by changing H and OH adsorption. Therefore, a clear role of OH adsorption during HOR process is essential for developing high performance HOR catalysts under alkaline electrolyte.
WebJul 1, 2016 · The oxophilic effect of the catalytic metal surface, which affects OHad adsorption and desorption and surface Had coverage, has a large impact on the HOR activity in the case of alkaline medium.... hdehpWebJan 1, 2024 · Therefore, in addition to the oxophilic effect in PtRu, an electronic modification of the catalytic center in PtRu inducing the Pt-H ads weakening is considered pivotal for the enhancement of the... hde ukraineWebSep 9, 2001 · Metabolism of oxalic acid, which occurs in a wide variety of higher plants, cultures of molds, and even in human urine as an end product, has long been … hde studyとはWebJan 23, 2024 · Modifying Pt surfaces by foreign metals with a higher oxophilicity is a promising approach to improve the kinetics of hydrogen evolution and oxidation reactions. The role of foreign metals, however,… Expand 64 A Coherent Picture of the Hydrogen Oxidation and Evolution Reactions in Aqueous Solutions Ershuai Liu, L. Jiao, +5 authors Q. … hdejja lyricsWebAug 1, 2024 · In summary, we perform a clear and convincing judgment that oxophilic effects serve different roles on HER and HOR in alkaline. That is, OH ad can greatly … hdemia srlWebThe high catalytic ability of Pt/MoP-NC originated from the electronic effect between noble metal active center Pt and the adjacent MoP-NC support with a unique layered porous spherical structure. ... the oxophilic MoP-NC nanospheres can activate water to provide more hydroxyl species and facilitate the oxidative removal of CO intermediates ... hdemauleonWebAug 1, 2024 · In summary, we perform a clear and convincing judgment that oxophilic effects serve different roles on HER and HOR in alkaline. That is, OH ad can greatly facilitate HER activity via bifunctional effects, but does not … hdeleon