Ecological monitoring of water intake from Belaya river near city of Sterlitamak

Bykovsky, N. A.; Kantor, E. A.; Rahman, P A; Puchkova, L. N.; Fanakova, N. N.

doi:10.1088/1755-1315/194/9/092002

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…42 In addition, as shown herein, also dissolved Ir in the water phase can be retrieved via absorption in anion exchange materials and regeneration with basic solutions. 43 The fraction of Ir that deposits on metal surfaces appears small (Fig. 4).…”

Section: Numchmentioning

confidence: 99%

Insights into the Path-Dependent Charge of Iridium Dissolution Products and Stability of Electrocatalytic Water Splitting

Dam,

Abuthaher,

Papakonstantinou

et al. 2023

J. Electrochem. Soc.

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The electrocatalytic stability of the oxygen evolution reaction (OER) is challenging for the storage of fluctuating renewable energies using polymer electrolyte membrane water electrolyzers (PEMWEs). Investigations are commonly conducted in so-called half-cell setups and different OER-related dissolution pathways have been proposed. However, the orders of magnitude difference in dissolution rate between half-cells and PEMWE using membrane electrode assemblies (MEA) is not well understood. In this work, the charge-related absorption affinity of Iridium (Ir) dissolution products, from both half-cell and MEA setups, is investigated, using cation and anion exchange materials. In the half-cell, a roughly constant ratio of cationic to anionic dissolution species is indicative of a single, dominant OER-related Ir dissolution pathway. While Ir dissolved in half-cells is mainly cationic, the Ir species from the MEA appear mainly in anionic form. This can be explained by the transport conditions of different Ir ions inside the catalyst layer, influenced by their ionomer absorption affinity and the migration driving force. Based on this understanding, key influences of electrocatalytic stability of MEAs, the effect of confinement of dissolved Ir species and the stability discrepancy to half-cells are discussed.

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Section: Numchmentioning

confidence: 99%

Insights into the Path-Dependent Charge of Iridium Dissolution Products and Stability of Electrocatalytic Water Splitting

Dam,

Abuthaher,

Papakonstantinou

et al. 2023

J. Electrochem. Soc.

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Flowing Sampler System for Surface Water Bodies

Kulakova

Сафаров

2022

Èkol. prom. Ross.

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A flowing sampling system using a complex branched pipeline is presented. The system function is ensured by the water supply from the averaging collector to the signaling pigs. The flowing sampling system instalation involves some transport infrastructure, namely bridges. Issues related to the peculiarities of the movement of fluid through the bridge supports, which affect the uneven distribution of pollutants in the monitored area, were investigated.

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Ecological monitoring of water intake from Belaya river near city of Sterlitamak

Cited by 2 publications

References 5 publications

Insights into the Path-Dependent Charge of Iridium Dissolution Products and Stability of Electrocatalytic Water Splitting

Insights into the Path-Dependent Charge of Iridium Dissolution Products and Stability of Electrocatalytic Water Splitting

Flowing Sampler System for Surface Water Bodies

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