SrZnO2

SrZnO2 is a stable, semiconducting ternary oxide utilized in catalytic research and materials science.

Crystal structure of SrZnO2 (orthorhombic, Pnma (No. 62))
Ground-state structure · Materials Project
Overview

About SrZnO2

SrZnO2 is a thermodynamically stable oxide that occupies a key position on the convex hull, indicating robust structural integrity. As a semiconducting material, it offers unique electronic properties that are highly valued in the development of functional catalytic systems. Its structural versatility is evidenced by the multiple reported phases identified across various materials databases. This compound serves as an important subject for researchers aiming to tune electronic behavior through composition control. Its stability makes it a reliable candidate for applications where long-term performance under demanding conditions is required. By leveraging its semiconducting nature, scientists can explore new pathways for surface-mediated reactions and energy conversion technologies.

At a glance

Key Properties

Cross-validated computational properties for SrZnO2, aggregated across 3 databases.

Band Gap

1.62–2.53 eV
Range across DFT structures · ground state: wide gap

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

Stable
3 DFT sources

Structures

9
3 databases, 1 space group
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of SrZnO2. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

1.00 / 1.00
Trust tier: high

Hull Spread

0.000 eV
EAH spread across sources

Sources Compared

3
jarvis, materials_project, oqmd

Space Group Consensus

All match
Crystallography

Reported Structures

Lowest-energy structures reported for SrZnO2, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
——2.430.0000-2.297—
Pnma (No. 62)orthorhombic2.390.0000-2.320—
Pnma (No. 62)orthorhombic2.080.0000-5.6475.57
——2.390.0672-2.230—
——2.530.0676-2.230—
——1.620.1301-2.167—
——0.000.1527-2.145—
Pnma (No. 62)orthorhombic———5.67
Pnma (No. 62)orthorhombic———5.56
Pnma (No. 62)orthorhombic———5.37
Pnma (No. 62)orthorhombic———5.52
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting SrZnO2.

Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Uses

Applications

Where SrZnO2 is used.

Heterogeneous catalysisSemiconductor researchChemical synthesis
Reference

Frequently Asked Questions

Common questions about SrZnO2, answered from cross-validated data.

What is SrZnO2?

SrZnO2 is a stable, semiconducting ternary oxide utilized in catalytic research and materials science.

More questions
What is SrZnO2 used for?
SrZnO2 is used in heterogeneous catalysis, semiconductor research, and chemical synthesis.
What is the band gap of SrZnO2?
SrZnO2 has a DFT-computed band gap of 1.62–2.53 eV across 9 reported structures. Standard DFT underestimates band gaps, so the measured gap is typically larger.
Is SrZnO2 a metal, semiconductor, or insulator?
DFT predicts a band gap of up to 2.53 eV (a semiconductor). Measured gaps are typically larger.
Is SrZnO2 thermodynamically stable?
Yes — SrZnO2 sits on the convex hull (energy above hull 0 eV/atom), i.e. stable.
What is the crystal structure of SrZnO2?
The reference structure of SrZnO2 is orthorhombic symmetry, space group Pnma (No. 62).
How many polymorphs of SrZnO2 are known?
9 structures of SrZnO2 are reported across 3 databases, spanning 1 distinct space group.
How is SrZnO2 synthesized?
Literature-reported routes for SrZnO2 include sol gel, solid state (5 procedures documented).
What elements does SrZnO2 contain?
SrZnO2 contains O, Sr, and Zn (3 elements).
Where does the data for SrZnO2 come from?
SrZnO2 data is cross-referenced from oqmd, jarvis, materials_project, mpaloe, cod.
Comparison

How It Compares

Within the spinel oxide catalysts class.

Within the diverse family of spinel-related and binary oxides, SrZnO2 represents a more complex ternary arrangement compared to simpler binary oxides like ZnO or NiO. While materials like MgAl2O4 serve as classic structural benchmarks for the spinel class, SrZnO2 provides a distinct alternative by incorporating strontium, which alters the lattice dynamics and electronic environment relative to the transition metal-based perovskites such as LaMnO3 or LaNiO3.

Explore

Related Compounds

Other Spinel Oxide Catalysts in the database.

Data sources & attribution
  • oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
  • jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
  • materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
  • mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
  • cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)

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