Nanocrystals

MoS2 - crystalline

Nanocrystals

MoS2 - crystalline

stuff w/ Li to get LiMoS2

Nanocrystals

MoS2 - crystalline

Severely disrupts structure

Local structure well-defined, poor long range order

stuff w/ Li to get LiMoS2

Nanocrystals

MoS2 - crystalline

Severely disrupts structure

Local structure well-defined, poor long range order

Use PDF

stuff w/ Li to get LiMoS2

Nanocrystals

Lots of structure, but broad peaks, overlap

PDF oscillations die out

Nanocrystals

Best structure model for LiMoS2 (Li not shown, Mo dark)

MoS2

Mo-S trigonal prisms ––> distorted octahedra

Nanocrystals

LiMoO2 similar to LiMoS2

except not nanocrystallineStd crystal structure detn carried out "successfully"

"PDF test" applied(radial distrib fcn shown)

Nanocrystals

LiMoO2 similar to LiMoS2

except not nanocrystallineStd crystal structure detn carried out "successfully"

"PDF test" applied(radial distrib fcn shown)

Corrected structureMo-Mo bonding similar to Li MoS2

Nanocrystals

V2O5•nH2O xerogel

ribbon-like particles - approx. 100 Å wide x 1 longNo Bragg peaks - some sharp features + lots of diffuse scattering

Nanocrystals

V2O5•nH2O xerogel

ribbon-like particles - approx. 100 Å wide x 1 longNo Bragg peaks - some sharp features + lots of diffuse scattering

V2O5•nH2O xerogel

V2O5

Nanocrystals

V2O5•nH2O xerogel

ribbon-like particles - approx. 100 Å wide x 1 longNo Bragg peaks - some sharp features + lots of diffuse scattering

V2O5•nH2O xerogel - VO5

bi-layers approx. 11.5 Å apart w/ H2Os in betwn

V2O5 - ordered single layers of VO5 units

Stacking disorder in VO5

bi-layersRibbons curled & tangled

QCs

QCs

QCs

QCs