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US 11,028,271 B2Granted
Functionalized metal chalcogenides of partially it crystalline phase
AssigneeAlliance for Sustainable Energy, LLC
InventorsHanyu Zhang, Eric Edward Benson, Jeffrey Lee Blackburn, Elisa Margaret Link
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Abstract
The present disclosure relates to a composition that includes a metal chalcogenide having a surface and a ligand, where the ligand is covalently bound to the surface. In some embodiments of the present disclosure, the metal chalcogenide may be defined by MXz, where Z is between 1 and 3, inclusively, M (a metal) includes at least one of Sc, Zr, Hf, Zr, Ti, Nb, Ta, V, Mo, Cr, Re, W, S, Pt, Fe, Cu, Sb, In, Zn, Cd, P, and/or Mn, and X (a chalcogenide) includes at least one of S, Se, and/or Te.
Claims11
A composition comprising:
- a metal chalcogenide comprising MoS2 having a surface;
- and
- a ligand comprising a phenyl ring and a moiety, wherein:
- the MoS2 is at least partially in a 1T crystalline phase,
- the ligand is covalently bound to the surface, and
- the moiety comprises at least one of a halogen or (CH3CH2)2N.
3 more elements
A composition comprising:
- MoS2 in a form of at least one of a particle or a sheet;
- and
- a ligand covalently bound to the MoS2, wherein:
- the ligand comprises at least one of 3,5-Cl2Ph, p-BrPh, or p-(CH3CH2)2NPh, where Ph is a phenyl ring,
- the MoS2 is it least partially in a 1T crystalline phase,
- the form has a characteristic length between 5.0 nm and 50,000 nm,
- the composition is characterized by a Hammett parameter between −0.5 and 1.0,
- the composition catalyzes the hydrogen evolution reaction (HER), and
- the composition generates a HER catalytic current density of about 10 mA/cm2 when provided with an overpotential of less than 1000 mV.
6 more elements
Dependencies are inferred from the claim text.