Lu2Ti2O7

Lutetium titanate · Lutetium pyrochlore

Lutetium titanate is a ceramic material belonging to the pyrochlore structural family. It is primarily studied for its potential use in advanced electronic components and as a host material for radioactive waste immobilization due to its structural stability.

LuOTi
Crystal structure of Lu2Ti2O7 (cubic, Fd-3m (No. 227))
Ground-state structure · Materials Project
Overview

Key Properties

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

Band Gap

2.51 eV
Range across DFT structures

Energy Above Hull

0.024 eV/atom
Best (lowest) across sources

Stability

Near hull (likely stable)
2 DFT sources

Structures

5
3 databases, 1 space group
Crystallography

Reported Structures

Lowest-energy structures reported for Lu2Ti2O7, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
Fd-3m (No. 227)cubic2.510.0237-9.1897.31
Fd-3m (No. 227)
Fd-3m (No. 227)Cubic7.73
Fd-3m (No. 227)Cubic7.31
Fd-3m (No. 227)Cubic7.50
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting Lu2Ti2O7.

Sol-Gel
Procedure available · ceder_solid_state
Uses

Applications

Where Lutetium titanate is used.

Nuclear waste storageDielectric materialsCatalysis researchSolid oxide fuel cells
Reference

Frequently Asked Questions

Common questions about Lutetium titanate, answered from cross-validated data.

What is Lu2Ti2O7?

Lutetium titanate is a ceramic material belonging to the pyrochlore structural family. It is primarily studied for its potential use in advanced electronic components and as a host material for radioactive waste immobilization due to its structural stability.

More questions
What is Lu2Ti2O7 used for?
Lutetium titanate (Lu2Ti2O7) is used in nuclear waste storage, dielectric materials, catalysis research, and solid oxide fuel cells.
What is the band gap of Lu2Ti2O7?
Lutetium titanate (Lu2Ti2O7) has a DFT-computed band gap of 2.51 eV across 5 reported structures.
Is Lu2Ti2O7 a metal, semiconductor, or insulator?
With a band gap up to 2.51 eV it is a semiconductor.
Is Lu2Ti2O7 thermodynamically stable?
Lutetium titanate (Lu2Ti2O7) has a lowest energy above hull of 0.024 eV/atom (near hull (likely stable)).
What is the crystal structure of Lu2Ti2O7?
The lowest-energy reported polymorph of Lutetium titanate (Lu2Ti2O7) is cubic symmetry, space group Fd-3m (No. 227).
What is the density of Lu2Ti2O7?
The computed density of the ground-state structure of Lutetium titanate (Lu2Ti2O7) is 7.31 g/cm³.
How many polymorphs of Lu2Ti2O7 are known?
5 structures of Lu2Ti2O7 are reported across 3 databases, spanning 1 distinct space group.
How is Lu2Ti2O7 synthesized?
Literature-reported routes for Lu2Ti2O7 include sol-gel.
What elements does Lu2Ti2O7 contain?
Lutetium titanate (Lu2Ti2O7) contains Lu, O, and Ti (3 elements).
Where does the data for Lu2Ti2O7 come from?
Lu2Ti2O7 data is cross-referenced from materials_project, jarvis, mpaloe.
Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
  • mpaloe — Data from mpaloe.

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