material

TiO2

ID:

mvc-11115

DOI:

10.17188/1318107


Material Details

Final Magnetic Moment
0.000 μB

Calculated total magnetic moment for the unit cell within the magnetic ordering provided (see below). Typically accurate to the second digit.

Magnetic Ordering
Non-magnetic
Formation Energy / Atom
-3.337 eV

Calculated formation energy from the elements normalized to per atom in the unit cell.

Energy Above Hull / Atom
0.182 eV

The energy of decomposition of this material into the set of most stable materials at this chemical composition, in eV/atom. Stability is tested against all potential chemical combinations that result in the material's composition. For example, a Co2O3 structure would be tested for decomposition against other Co2O3 structures, against Co and O2 mixtures, and against CoO and O2 mixtures.

Density
3.55 g/cm3

The calculated bulk crystalline density, typically underestimated due calculated cell volumes overestimated on average by 3% (+/- 6%)

Decomposes To
TiO2
Band Gap
2.439 eV

In general, band gaps computed with common exchange-correlation functionals such as the LDA and GGA are severely underestimated. Typically the disagreement is reported to be ~50% in the literature. Some internal testing by the Materials Project supports these statements; typically, we find that band gaps are underestimated by ~40%. We additionally find that several known insulators are predicted to be metallic.

Space Group

Hermann Mauguin
R3m [160]
Hall
R 3 2"
Point Group
3m
Crystal System
trigonal
We have not yet calculated a detailed bandstructure for this material

X-Ray Diffraction

    Select radiation source:
  • Cu
  • Ag
  • Mo
  • Fe

Calculated powder diffraction pattern; note that peak spacings may be affected due to inaccuracies in calculated cell volume, which is typically overestimated on average by 3% (+/- 6%)

Substrates

Reference for minimal coincident interface area (MCIA) and elastic energy:
substrate orientation:
No elastic tensor calculated for this material, so elastic energies not avaialable. Sorting by MCIA instead.
substrate material substrate orientation film orientation MCIA [Å2]
LaAlO3 (mp-2920) <0 0 1> <0 0 1> 219.8
LaAlO3 (mp-2920) <1 0 1> <0 0 1> 219.8
CeO2 (mp-20194) <1 1 1> <0 0 1> 219.8
GaAs (mp-2534) <1 1 1> <0 0 1> 219.8
BaF2 (mp-1029) <1 1 1> <0 0 1> 282.6
GaN (mp-804) <1 1 0> <0 0 1> 282.6
SiO2 (mp-6930) <0 0 1> <0 0 1> 282.6
AlN (mp-661) <1 0 1> <0 0 1> 125.6
InAs (mp-20305) <1 0 0> <0 0 1> 188.4
ZnSe (mp-1190) <1 1 1> <0 0 1> 219.8
CdS (mp-672) <0 0 1> <0 0 1> 282.6
GaN (mp-804) <0 0 1> <0 0 1> 219.8
GaN (mp-804) <1 0 0> <1 0 1> 183.1
GaN (mp-804) <1 0 1> <1 0 0> 172.0
KCl (mp-23193) <1 1 1> <0 0 1> 219.8
LiF (mp-1138) <1 0 0> <0 0 1> 251.2
InAs (mp-20305) <1 1 0> <1 0 0> 258.0
YVO4 (mp-19133) <0 0 1> <0 0 1> 157.0
Te2Mo (mp-602) <0 0 1> <1 0 1> 274.6
Te2Mo (mp-602) <1 0 1> <0 0 1> 282.6
Te2Mo (mp-602) <1 1 1> <1 0 1> 91.5
Ag (mp-124) <1 1 0> <0 0 1> 125.6
TePb (mp-19717) <1 1 1> <0 0 1> 219.8
Ag (mp-124) <1 0 0> <0 0 1> 157.0
Ag (mp-124) <1 1 1> <0 0 1> 31.4
Bi2Te3 (mp-34202) <0 0 1> <0 0 1> 125.6
BN (mp-984) <0 0 1> <0 0 1> 282.6
BN (mp-984) <1 1 1> <1 0 1> 274.6
LiNbO3 (mp-3731) <0 0 1> <0 0 1> 94.2
LiNbO3 (mp-3731) <1 1 0> <1 0 0> 258.0
BN (mp-984) <1 0 0> <0 0 1> 345.4
BN (mp-984) <1 0 1> <0 0 1> 219.8
LiNbO3 (mp-3731) <1 0 0> <1 1 0> 148.9
Bi2Se3 (mp-541837) <0 0 1> <0 0 1> 282.6
LiGaO2 (mp-5854) <0 0 1> <0 0 1> 282.6
LiGaO2 (mp-5854) <0 1 0> <0 0 1> 345.4
CdTe (mp-406) <1 1 1> <0 0 1> 219.8
MoS2 (mp-1434) <0 0 1> <0 0 1> 219.8
LiGaO2 (mp-5854) <0 1 1> <0 0 1> 345.4
SiC (mp-7631) <0 0 1> <0 0 1> 219.8
SiC (mp-7631) <1 0 0> <1 0 1> 91.5
SiC (mp-7631) <1 1 0> <0 0 1> 157.0
MgO (mp-1265) <1 1 0> <0 0 1> 125.6
LiTaO3 (mp-3666) <0 0 1> <0 0 1> 94.2
LiTaO3 (mp-3666) <1 0 0> <1 1 0> 148.9
LiTaO3 (mp-3666) <1 1 0> <1 0 0> 258.0
Fe3O4 (mp-19306) <1 1 1> <0 0 1> 125.6
MgO (mp-1265) <1 0 0> <1 0 1> 91.5
MgO (mp-1265) <1 1 1> <0 0 1> 31.4
TiO2 (mp-2657) <1 0 0> <0 0 1> 219.8
Up to 50 entries displayed.
minimal coincident interface area.

Elasticity

Reference for tensor and properties:
Stiffness Tensor Cij (GPa)
208 76 53 4 0 0
76 208 53 -4 0 0
53 53 91 0 0 0
4 -4 0 19 0 0
0 0 0 0 19 4
0 0 0 0 4 66
Compliance Tensor Sij (10-12Pa-1)
6.1 -1.6 -2.6 -1.4 0 0
-1.6 6.1 -2.6 1.4 0 0
-2.6 -2.6 14.1 0 0 0
-1.4 1.4 0 52 0 0
0 0 0 0 52 -2.8
0 0 0 0 -2.8 15.4
Shear Modulus GV
42 GPa
Bulk Modulus KV
97 GPa
Shear Modulus GR
31 GPa
Bulk Modulus KR
80 GPa
Shear Modulus GVRH
36 GPa
Bulk Modulus KVRH
88 GPa
Elastic Anisotropy
2.17
Poisson's Ratio
0.32

Similar Structures beta feature

Explanation of dissimilarity measure: Documentation.
material dissimilarity Ehull # of elements
FeCo3O8 (mp-771554) 0.4373 0.116 3
V3CoO8 (mp-861494) 0.5207 0.078 3
LiMo3O8 (mp-25584) 0.4578 0.215 3
MgMo3O8 (mvc-13535) 0.4611 0.237 3
V3CoO8 (mp-868771) 0.5207 0.078 3
TaAl(WO4)2 (mvc-781) 0.7477 0.236 4
CrO2 (mvc-14589) 0.2118 0.194 2
NiO2 (mvc-13696) 0.4283 0.263 2
VO2 (mvc-11089) 0.2057 0.213 2
CoO2 (mp-770908) 0.3518 0.113 2
FeO2 (mvc-12125) 0.4158 0.283 2
Up to 5 similar elemental, binary, ternary, quaternary, etc. structures displayed (dissimilarity threshold 0.75). Ehull: energy above hull per atom [eV].

Synthesis Descriptions

Mesoporous TiO2 photocatalysts have been synthesized using polyethylene glycol (PEG) as a template direction agent in diluted acetic acid aqueous solution. This medium slows down the hydrolysis reacti [...]
Aluminum pillared clay (Al-PILC) and platinum impregnated pillared clay (Pt/Al-PILC) were prepared, characterized and tested as catalysts in adipic ester hydrogenation. Results were compared with thos [...]
chef hat mixing beaker

Explore more synthesis descriptions for materials of composition TiO2.

Text computed by synthesisproject.org.

Calculation Summary

Elasticity

Methodology

Structure Optimization

Run Type
GGA
Energy Cutoff
520 eV
# of K-points
None
U Values
--
Pseudopotentials
VASP PAW: Ti_pv O
Final Energy/Atom
-8.7918 eV
Corrected Energy
-111.1196 eV
-111.1196 eV = -105.5013 eV (uncorrected energy) - 5.6183 eV (MP Anion Correction)

Detailed input parameters and outputs for all calculations


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Displaying lattice parameters for primitive cell; note that calculated cell volumes are typically overestimated on average by 3% (+/- 6%). Note the primitive cell may appear less symmetric than the conventional cell representation (see "Structure Type" selector below the 3d structure)