383309

Barium zirconate

powder, <10 μm

• Linear Formula: BaZrO₃
• CAS Number: 12009-21-1
• Molecular Weight: 276.55
• EC Number: 234-546-8
• MDL number: MFCD00014189
• UNSPSC Code: 12352300
• PubChem Substance ID: 24863952
• NACRES: NA.23

Properties

• form: powder
• reaction suitability: reagent type: catalyst; core: zirconium
• particle size: <10 μm
• density: 5.52 g/mL at 25 °C (lit.)
• SMILES string: [Ba++].[O-][Zr]([O-])=O
• InChI: 1S/Ba.3O.Zr/q+2;;2*-1;
• InChI key: DQBAOWPVHRWLJC-UHFFFAOYSA-N

Description

General description

Barium zirconate (BaZrO₃) is a perovskite-structured ceramic known for its exceptional properties, including high thermal stability, low thermal expansion, and excellent ion conductivity. Its cubic crystal structure allows it to maintain stability at elevated temperatures, making it suitable for applications in thermal barrier coatings, proton-conducting fuelcells, and as a catalyst support in various chemical reactions. Additionally, BaZrO₃ exhibits low dielectric loss, making it attractive for electronic components and capacitors.

Application

• Interface Diffusion and Compatibility of (Ba,La)FeO(3-δ) Perovskite Electrodes in Contact with Barium Zirconate and Ceria.: This study explores the interface diffusion and compatibility of perovskite electrodes in solid oxide fuel cells (SOFCs), demonstrating the stability of barium zirconate as an electrolyte material (Chiara et al., 2023).
• Composite Electrolyte Used for Low Temperature SOFCs to Work at 390°C.: Researchers developed a composite electrolyte incorporating barium zirconate for use in low-temperature SOFCs, highlighting its potential in improving fuel cell performance (Liu et al., 2023).
• In Situ Nanoscale Dynamics Imaging in a Proton-Conducting Solid Oxide for Protonic Ceramic Fuel Cells.: This article presents in situ imaging techniques to analyze the dynamics of proton conduction in barium zirconate, offering insights into its role in protonic ceramic fuel cells (Gorobtsov et al., 2022).
• Proton Conductive BaZr(0.8-x) Ce(x) Y(0.2) O(3-δ): Influence of NiO Sintering Additive on Crystal Structure, Hydration Behavior, and Conduction Properties.: Investigating the impact of NiO additives, this study focuses on the proton conductivity and structural properties of yttrium-doped barium zirconate (Han et al., 2021).
• Inkjet Printed Y-Substituted Barium Zirconate Layers as Electrolyte Membrane for Thin Film Electrochemical Devices.: The paper describes the application of inkjet printing techniques to create thin film electrolyte membranes using yttrium-doped barium zirconate for advanced electrochemical devices (Schneller et al., 2019).

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H302 + H332
• Precautionary Statements: P261 - P264 - P271 - P301 + P312 - P304 + P340 + P312 - P501
• Hazard Classifications: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves