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206237

Sigma-Aldrich

Iridium(IV) oxide

99.9% trace metals basis

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Synonym(s):
Iridium dioxide
Linear Formula:
IrO2
CAS Number:
12030-49-8
Molecular Weight:
224.22
EC Number:
234-743-9
MDL number:
MFCD00011065
eCl@ss:
38191204
PubChem Substance ID:
24852387
NACRES:
NA.23

Quality Level

100

Assay

99.9% trace metals basis

form

powder

application(s)

battery manufacturing

SMILES string

O=[Ir]=O

InChI

1S/Ir.2O

InChI key

HTXDPTMKBJXEOW-UHFFFAOYSA-N

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This Item
230693398500342254
Iridium(IV) oxide 99.9% trace metals basis

Sigma-Aldrich

206237

Iridium(IV) oxide

Zirconium(IV) oxide powder, 5 μm, 99% trace metals basis

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Zirconium(IV) oxide

Iridium(IV) oxide hydrate 99.9% trace metals basis

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Iridium(IV) oxide hydrate

Rhenium(IV) oxide 99.7% trace metals basis

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342254

Rhenium(IV) oxide

form

powder

form

powder

form

powder

form

powder

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

-

application(s)

-

General description

Iridium oxide is a ceramic material with unique properties like long-term stability, sensitivity, electrochemical catalytic activity, and excellent biocompatibility. It can be formed from Ir metal by different methods like thermal decomposition, reactive sputtering, and electrochemical deposition. It is widely used in bio-electronic devices.

Application

Iridium(IV) oxide can be used as:
  • An indicator electrode in solid-state pH sensors.
  • Coating material for stimulation electrodes.
  • An anodic catalyst for oxygen evolution through a water-splitting reaction in a polymer electrolyte membrane (PEM) cell.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Jun Ho Shim et al.
Analytical chemistry, 84(8), 3827-3832 (2012-03-30)
Applying nanoscale device fabrications toward biomolecules, ultra sensitive, selective, robust, and reliable chemical or biological microsensors have been one of the most fascinating research directions in our life science. Here we introduce hierarchically driven iridium dioxide (IrO(2)) nanowires directly on
H B Campbell et al.
Biosensors & bioelectronics, 42, 563-569 (2012-12-25)
The primary goal of this work is the development of a rapidly responding, sensitive, and biocompatible Ir oxide (IrOx)-based glucose sensor that regenerates solely via IrOx-mediation in both O₂-free and aerobic environments. An important discovery is that, for films composed
JingYan Nian et al.
The journal of physical chemistry. A, 115(40), 11023-11032 (2011-09-03)
The mechanisms of the reactions between N(2)O and CO catalyzed by IrO(n)(+) (n = 1, 2) have been investigated using B3LYP and CCSD(T) levels of theory. Spin inversion among three reaction profiles corresponding to the quintet, triplet, and singlet multiplicities
Martin Han et al.
IEEE transactions on bio-medical engineering, 59(2), 346-354 (2011-10-25)
We developed and validated silicon-based neural probes for neural stimulating and recording in long-term implantation in the brain. The probes combine the deep reactive ion etching process and mechanical shaping of their tip region, yielding a mechanically sturdy shank with
Guangfu Li et al.
ChemSusChem, 5(5), 858-861 (2012-03-24)
Morphological control by SBA-15: The performance of catalysts for the oxygen evolution reaction (OER) depends strongly on their structural and morphological properties. An IrO(2) nanomaterial with a morphology suitable for the OER is prepared by using a synthetic scheme involving
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