Nitrate protic ionic liquids as electrolytes: Towards hydrogen sorption in Pd

Pająk, Małgorzata; Hubkowska, K.; Czerwiński, A.

doi:10.1016/j.electacta.2019.134851

Cited by 14 publications

(8 citation statements)

References 35 publications

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“…All potentials were calculated in reference to RHE. The potential recalculation into RHE was done with the use of Hydroflex electrode [38,39,51].…”

Section: Methodsmentioning

confidence: 99%

“…Moreover, there are limited works concerning the hydrogen sorption in Pd from non-aqueous media [36][37][38][39]. The behavior of Pd-based materials in concentrated alkaline media seems to be very important having regard for the fact that Pd and its alloys are considered as efficient modifiers of hydrogen sorption properties of AB-type alloys [40][41][42].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tuning hydrogen sorption properties of Pd by its alloying with Ru, Rh, and Pt: the study of binary alloys in concentrated alkaline media

Hubkowska

Czerwiński

2020

J Solid State Electrochem

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The hydrogen electrosorption process was examined in 6 M KOH on Pd binary alloys, containing Rh, Ru, and Pt. Pd-alloys were electrochemically deposited on Au substrate. The electrodes were subjected to activation procedure—hydrogen pretreatment procedure (HPP) at first in 0.5 M H2SO4 and then in 6 M KOH. It was noticed that it was possible to achieve comparable reversibility of hydrogen electrosorption process in acid and in concentrated base. The obtained values of the α→β phase transition potential, hysteresis extent, and maximum hydrogen absorption capacity show good agreement with the data from acidic medium. The observed kinetics of hydrogen electrosorption were strongly hindered in concentrated alkaline media, whereas the influence of the electrolyte on the thermodynamic functions of hydrogen absorption is less pronounced.

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“…All potentials were calculated in reference to RHE. The potential recalculation into RHE was done with the use of Hydroflex electrode [38,39,51].…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tuning hydrogen sorption properties of Pd by its alloying with Ru, Rh, and Pt: the study of binary alloys in concentrated alkaline media

Hubkowska

Czerwiński

2020

J Solid State Electrochem

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“…Many examples of them can be found in fields as diverse as electrodeposition, electrochemical exfoliation, liquid–liquid extraction, organic or inorganic synthesis, biocatalysis, lubrication or biological medium solvents, among others [ 17 , 18 ]. More recent works have already explored their utility as components of smart materials [ 19 ], in hydrogen sorption processes [ 20 ], in thermoelectric generator devices [ 21 ] or in studies on the structural stability and aggregation state of proteins [ 22 ]. In general, EAN and PAN have been the subject of many studies, reported in more than 700 bibliographic references (SciFindern database), as can be seen in Figure 1 .…”

Section: Introductionmentioning

confidence: 99%

Influence of Small Quantities of Water on the Physical Properties of Alkylammonium Nitrate Ionic Liquids

Ausín

Parajó

Trenzado

et al. 2021

IJMS

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This paper presents a comprehensive study of two alkylammonium nitrate ionic liquids. As part of this family of materials, mainly ethylammonium nitrate (EAN) and also propylammonium nitrate (PAN) have attracted a great deal of attention during the last decades due to their potential applications in many fields. Although there have been numerous publications focused on the measurement of their physical properties, a great dispersion can be observed in the results obtained for the same magnitude. One of the critical points to be taken into account in their physical characterization is their water content. Thus, the main objective of this work was to determine the degree of influence of the presence of small quantities of water in EAN and PAN on the measurement of density, viscosity, electrical conductivity, refractive index and surface tension. For this purpose, the first three properties were determined in samples of EAN and PAN with water contents below 30,000 ppm in a wide range of temperatures, between 5 and 95 °C, while the last two were obtained at 25 °C. As a result of this study, it has been concluded that the presence of water is critical in those physical properties that involve mass or charge transport processes, resulting in the finding that the absolute value of the average percentage change in both viscosity and electrical conductivity is above 40%. Meanwhile, refractive index (≤0.3%), density (≤0.5%) and surface tension (≤2%) present much less significant changes.

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“…Arkhipova and coworkers [ 63 ] employed tetraethylammonium bis (trifluoromethylsulfonyl)imide, [N 2222 ][NTf 2 ], to study the redox properties of mesoporous graphene nanoflakes, showing a capacitance above 100 F/g, while M. Pajaket al [ 64 ], have demonstrated that some protic ammonium based ILs with nitrate anion (ethylammonium nitrate and propylammonium nitrate) can act as proton donors in the electrosorption of H 2 in palladium. This result is quite relevant because most of the “first generation” ionic liquids were discarded over the years.…”

Section: Ammonium- Pyrrolidinium- Phosphonium- and Sulfonium-basmentioning

confidence: 99%

Application of Ionic Liquids in Electrochemistry—Recent Advances

2020

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In this review, the roles of room temperature ionic liquids (RTILs) and RTIL based solvent systems as proposed alternatives for conventional organic electrolyte solutions are described. Ionic liquids are introduced as well as the relevant properties for their use in electrochemistry (reduction of ohmic losses), such as diffusive molecular motion and ionic conductivity. We have restricted ourselves to provide a survey on the latest, most representative developments and progress made in the use of ionic liquids as electrolytes, in particular achieved by the cyclic voltammetry technique. Thus, the present review comprises literature from 2015 onward covering the different aspects of RTILs, from the knowledge of these media to the use of their properties for electrochemical processes. Out of the scope of this review are heat transfer applications, medical or biological applications, and multiphasic reactions.

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Nitrate protic ionic liquids as electrolytes: Towards hydrogen sorption in Pd

Cited by 14 publications

References 35 publications

Tuning hydrogen sorption properties of Pd by its alloying with Ru, Rh, and Pt: the study of binary alloys in concentrated alkaline media

Tuning hydrogen sorption properties of Pd by its alloying with Ru, Rh, and Pt: the study of binary alloys in concentrated alkaline media

Influence of Small Quantities of Water on the Physical Properties of Alkylammonium Nitrate Ionic Liquids

Application of Ionic Liquids in Electrochemistry—Recent Advances

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