High Capacity Nanocomposite Layers Based on Nanoparticles of Carbon Materials and Ruthenium Dioxide for Potassium Sensitive Electrode

Lenar, Nikola; Piech, Robert; Paczosa‐Bator, Beata

doi:10.3390/ma14051308

Cited by 10 publications

(3 citation statements)

References 31 publications

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“…Nanocomposite materials consisting of ruthenium oxide and carbon nanomaterials (single-layer graphene, carbon black and multiwalled carbon nanotubes) with high capacitance (up to about 14 mF for MWCNTs + RuO 2 ) and very low hydrophilicity were used in the construction of potassium electrodes [171]. The properties of the obtained nanocomposites as well as unmodified carbon nanomaterials were examined, confirming that the addition of RuO 2 improves the electrical parameters of the materials.…”

Section: Composites Based On Carbon Nanomaterials With Other Materialsmentioning

confidence: 83%

Ion-Selective Electrodes with Solid Contact Based on Composite Materials: A Review

Wardak

Pietrzak

Morawska

et al. 2023

Sensors

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Potentiometric sensors are the largest and most commonly used group of electrochemical sensors. Among them, ion-selective electrodes hold a prominent place. Since the end of the last century, their re-development has been observed, which is a consequence of the introduction of solid contact constructions, i.e., electrodes without an internal electrolyte solution. Research carried out in the field of potentiometric sensors primarily focuses on developing new variants of solid contact in order to obtain devices with better analytical parameters, and at the same time cheaper and easier to use, which has been made possible thanks to the achievements of material engineering. This paper presents an overview of new materials used as a solid contact in ion-selective electrodes over the past several years. These are primarily composite and hybrid materials that are a combination of carbon nanomaterials and polymers, as well as those obtained from carbon and polymer nanomaterials in combination with others, such as metal nanoparticles, metal oxides, ionic liquids and many others. Composite materials often have better mechanical, thermal, electrical, optical and chemical properties than the original components. With regard to their use in the construction of ion-selective electrodes, it is particularly important to increase the capacitance and surface area of the material, which makes them more effective in the process of charge transfer between the polymer membrane and the substrate material. This allows to obtain sensors with better analytical and operational parameters. Brief characteristics of electrodes with solid contact, their advantages and disadvantages, as well as research methods used to assess their parameters and analytical usefulness were presented. The work was divided into chapters according to the type of composite material, while the data in the table were arranged according to the type of ion. Selected basic analytical parameters of the obtained electrodes have been collected and summarized in order to better illustrate and compare the achievements that have been described till now in this field of analytical chemistry, which is potentiometry. This comprehensive review is a compendium of knowledge in the research area of functional composite materials and state-of-the-art SC-ISE construction technologies.

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Section: Composites Based On Carbon Nanomaterials With Other Materialsmentioning

confidence: 83%

Ion-Selective Electrodes with Solid Contact Based on Composite Materials: A Review

Wardak

Pietrzak

Morawska

et al. 2023

Sensors

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“…In our previous works, the electrical capacitance reported for another transition metal oxide-ruthenium dioxide RuO 2 -contacted K + -selective electrodes equaled to 1.07 mF, 30 while for the RuO 2 -POT composite-contacted electrodes, we received a value of 1.17 mF. 25 The design of RuO2 -carbon nanomaterial composites allowed us to increase the capacitance of potassium selective electrodes to 2.6 mF (with the use of the GR-RuO 2 mediation layer) 21 and RuO 2 -Poly(3, 4-ethylenedioxythiophene) Polystyrene Sulfonate composite to 7.2 mF. 31 Other composite materials applied as solid-contact layers in ASS electrodes include: TiO 2 -PANI, 17 POT-MoS 2 , 32 platinum nanoparticles-carbon materials PtNPs-CB 33 and PtNPs-GR.…”

Section: Methodsmentioning

confidence: 97%

Carbon Nanomaterials - Poly(3-octylthiophene-2,5-diyl) – Hydrous Iridium Dioxide Triple Composite Materials as Superhydrophobic Layers for Ion-Selective Electrodes

Lenar¹,

Piech²,

Paczosa‐Bator³

2022

J. Electrochem. Soc.

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In this paper, we introduce a new triple composite material consisting of three significantly different materials: carbon nanomaterial (carbon nanotubes and carbon black), conducting polymer (poly(3-octylthiophene-2,5-diyl), and metal oxide (hydrous iridium dioxide). Combining these three components creates superhydrophobic materials (of contact angle value up to 180). Both designed materials were characterized with high values of electrical capacitance parameters (1.5 and 0.9 mF) and low values of resistance (72.90.3 k and 23.50.2 k for NT-based and CB-based electrode, respectively). The new functional material was implemented in potassium-selective electrodes to improve their electrical and analytical parameters. This is the first potentiometric sensor with a solid-contact layer composed of three significantly different materials. The superhydrophobic layer of triple composite material improved long-term stability (characterized by potential drift of 43 and 79 μV/h for the NT-based and CB-based electrode, respectively) and its repeatability limits the number of necessary calibrations. Potentiometric sensors presented in the scope of this work enable potassium determination in the wide range of potassium ions (from 10-6 to 10-1 M of K+ ions). The possibility of practical application was successfully confirmed by the analysis of potassium in vegetable juices.

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“…Later, the Paczosa-Bator group presented composite materials containing RuO 2 nanoparticles and conducting polymers POT (RuO 2 -POT) [106] and PEDOT:PSS [107] and composite material containing ruthenium dioxide and carbon nanomaterials [108]. All the mentioned hybrids were applied as solid-contact layers in K + -selective electrodes.…”

Section: Metal Oxide Nanoparticles-based Hybrid Materials As Solid-co...mentioning

confidence: 99%

Application of Metal Oxide Nanoparticles in the Field of Potentiometric Sensors: A Review

Lenar,

Piech,

Wardak

et al. 2023

Membranes

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Recently, there has been rapid development of electrochemical sensors, and there have been numerous reports in the literature that describe new constructions with improved performance parameters. Undoubtedly, this is due to the fact that those sensors are characterized by very good analytical parameters, and at the same time, they are cheap and easy to use, which distinguishes them from other analytical tools. One of the trends observed in their development is the search for new functional materials. This review focuses on potentiometric sensors designed with the use of various metal oxides. Metal oxides, because of their remarkable properties including high electrical capacity and mixed ion-electron conductivity, have found applications as both sensing layers (e.g., of screen-printing pH sensors) or solid-contact layers and paste components in solid-contact and paste-ion-selective electrodes. All the mentioned applications of metal oxides are described in the scope of the paper. This paper presents a survey on the use of metal oxides in the field of the potentiometry method as both single-component layers and as a component of hybrid materials. Metal oxides are allowed to obtain potentiometric sensors of all-solid-state construction characterized by remarkable analytical parameters. These new types of sensors exhibit properties that are competitive with those of the commonly used conventional electrodes. Different construction solutions and various metal oxides were compared in the scope of this review based on their analytical parameters.

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High Capacity Nanocomposite Layers Based on Nanoparticles of Carbon Materials and Ruthenium Dioxide for Potassium Sensitive Electrode

Cited by 10 publications

References 31 publications

Ion-Selective Electrodes with Solid Contact Based on Composite Materials: A Review

Ion-Selective Electrodes with Solid Contact Based on Composite Materials: A Review

Carbon Nanomaterials - Poly(3-octylthiophene-2,5-diyl) – Hydrous Iridium Dioxide Triple Composite Materials as Superhydrophobic Layers for Ion-Selective Electrodes

Application of Metal Oxide Nanoparticles in the Field of Potentiometric Sensors: A Review

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