pH electrode based on ALD deposited iridium oxide

Ryynänen, Tomi; Nurminen, Kirsi; Hämäläinen, Jani; Leskelä, Markku; Lekkala, Jukka

doi:10.1016/j.proeng.2010.09.168

Cited by 11 publications

(4 citation statements)

References 5 publications

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“…5,8 On the other hand ALD iridium oxide films can be applied as electrodes for pH measurements. 9 As a biocompatible material, iridium oxide could be attractive for pH measurements also in biological environments.…”

Section: Introductionmentioning

confidence: 99%

Iridium metal and iridium oxide thin films grown by atomic layer deposition at low temperatures

et al. 2011

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Section: Introductionmentioning

confidence: 99%

Iridium metal and iridium oxide thin films grown by atomic layer deposition at low temperatures

et al. 2011

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“…To overcome the disadvantages of the glass bar, other alternatives were explored, such as the incorporation of structures with metal oxide as an active component and promising materials for new pH sensors. A pH response was considered for certain types of electrically conductive and semiconductor oxides [102][103][104][105] i.e., platinum, iridium, ruthenium, osmium dioxide, titanium, palladium, tin, zirconium, lead, rhodium oxides [106][107][108][109][110][111]. Iridium, ruthenium, and titanium oxides have been widely used in several applications, particularly in pH detection due to their fast response, chemical stability, high durability, and conductivity.…”

Section: Ofs For Ph Monitoring Of Concrete Structuresmentioning

confidence: 99%

Sol-Gel Coating Membranes for Optical Fiber Sensors for Concrete Structures Monitoring

et al. 2021

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The use of advanced sensing devices for concrete and reinforced concrete structures (RCS) is considered a rational approach for the assessment of repair options and scheduling of inspection and maintenance strategies. The immediate benefits are cost reduction and a reliable prevention of unpredictable events. The use of optical fiber sensors (OFS) for such purposes has increased considerably in the last few years due to their intrinsic advantages. In most of the OFS, the chemical transducer consists of immobilized chemical reagents placed in the sensing region of the optical sensor by direct deposition or by encapsulation in a polymeric matrix. The choice of the support matrix impacts directly on the performance of the OFS. In the last two decades, the development of OFS functionalized with organic–inorganic hybrid (OIH) sol–gel membranes have been reported. Sol–gel route is considered a simple method that offers several advantages when compared to traditional synthesis processes, allowing to obtain versatile materials with unique chemical and physical properties, and is particularly valuable in the design of OIH materials. This review will provide an update of the current state-of-the-art of the OFS based on OIH sol-gel materials for concrete and RCS since 2016 until mid-2021. The main achievements in the synthesis of OIH membranes for deposition on OFS will be discussed. The challenges and future directions in this field will also be considered, as well as the main limitations of OFS for RCS monitoring.

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“…Alternatively, solid-state pH sensors can be used as glass pH sensors. IrOX is one of the best pH-sensitive materials given its robust shape, fast response, and high stability over a wide range of pressure and temperature [2,3]. Techniques in fabricating IrOX pH sensors include (i) sputtering , (ii) the sol-gel process , (iii) thermal oxidation of iridium , and (iv) electrodeposition .…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of Iridium Oxide by Cyclic Voltammetry: Application of Response Surface Methodology

Kakooei

Ismaila

Ari-Wahjoedia

2014

MATEC Web of Conferences

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Abstract. The effects of scan rate, temperature, and number of cycles on the coating thickness of IrOX electrodeposited on a stainless steel substrate by cyclic voltammetry were investigated in a statistical system. The central composite design, combined with response surface methodology, was used to study condition of electrodeposition. All fabricated electrodes were characterized using electrochemical methods. Field emission scanning electron microscopy and energy-dispersive X-ray spectroscopy were performed for IrOX film characterization. Results showed that scan rate significantly affects the thickness of the electrodeposited layer. Also, the number of cycles has a greater effect than temperature on the IrOX thickness.

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pH electrode based on ALD deposited iridium oxide

Cited by 11 publications

References 5 publications

Iridium metal and iridium oxide thin films grown by atomic layer deposition at low temperatures

Iridium metal and iridium oxide thin films grown by atomic layer deposition at low temperatures

Sol-Gel Coating Membranes for Optical Fiber Sensors for Concrete Structures Monitoring

Electrodeposition of Iridium Oxide by Cyclic Voltammetry: Application of Response Surface Methodology

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