Nanostructured composite metal hydrides

Patent metadata

Field	Value
Publication number	US-2018333774-A1
Application number	US-201815982232-A
Country	US
Kind code	A1
Filing date	May 17, 2018
Priority date	May 17, 2017
Publication date	Nov 22, 2018
Grant date	—

Abstract

The present disclosure relates to a composition that includes a solid core having an outer surface and a coating layer, where the coating layer covers at least a portion of the outer surface, the coating layer is permeable to hydrogen (H 2 ), and the solid core is capable of reversibly absorbing and desorbing hydrogen.

First claim

What is claimed is:

1 . A composition comprising:
a solid core having an outer surface; and a coating layer, wherein: the coating layer covers substantially all of the outer surface, the coating layer is permeable to hydrogen (H 2 ), and the solid core is capable of reversibly absorbing and desorbing hydrogen.

2 . The composition of claim 1 , wherein the solid core has a characteristic diameter between greater than zero nanometers and 5000 nm.

3 . The composition of claim 1 , wherein the solid core comprises at least one of a hydride or a metal.

4 . The composition of claim 3 , wherein the metal comprises at least one of palladium, platinum, nickel, iridium, ruthenium, copper, silver, gold, or osmium.

5 . The composition of claim 3 , wherein:
the solid core further comprises a substrate, and the metal is positioned on the substrate.

6 . The composition of claim 5 , wherein the substrate comprises at least one of activated carbon, aluminum oxide, silicon dioxide, or magnesium diboride.

7 . The composition of claim 6 , wherein the substrate is activated carbon.

8 . The composition of claim 5 , wherein the metal is palladium.

9 . The composition of claim 3 , wherein the hydride comprises the metal.

10 . The composition of claim 9 , wherein the hydride comprises at least one of magnesium hydride (MgH 2 ), TiH 2 , aluminum hydride (AlH 3 ), lanthanum nickel hydride (LaNi 5 H 7 ), or lithium aluminum hydride (LiAlH 4 ).

11 . The composition of claim 3 , wherein the hydride comprises boron.

12 . The composition of claim 11 , wherein the hydride comprises at least one of magnesium borohydride (Mg(BH 4 ) 2 ), ammonia borane (NH 3 BH 3 ), aluminum borohydride (Al(BH 4 ) 2 ), calcium borohydride (Ca(BH 4 ) 2 ), magnesium diboride (MgB 2 ), sodium borohydride (NaBH 4 ), or lithium borohydride (LiBH 4 ).

13 . The composition of claim 1 , wherein the coating layer has a thickness between greater than zero nanometers and 50 nm.

14 . The composition of claim 13 , wherein the coating layer comprises one or more layers deposited by atomic layer deposition (ALD).

15 . The composition of claim 1 , wherein the coating layer comprises at least one of MgO, SnO 2 , SiO 2 , ZnS, Al 2 O 3 , CeO 2 , Nb 2 O 5 , ZrO 2 , CeO 2 , or TiO 2 .

16 . The composition of claim 1 , further comprising:
a particle, wherein: the particle is positioned on the outer surface, and the coating substantially covers the particle.

17 . The composition of claim 1 , further comprising hydrogen.

18 . A method comprising:
loading hydrogen (H 2 ) onto a storage material, the storage material comprising:
a solid core; and
a coating layer; and
releasing the hydrogen from the storage material, wherein: the loading and releasing are reversibly cycled between the loading and the releasing, the storage material, after the loading, contains a concentration of the hydrogen of up to 10 wt %, and the storage material, after the releasing, contains a concentration of the hydrogen of less than 10 wt %.

19 . The method of claim 18 , wherein the storage material is capable of being reversibly cycled between the loading and the releasing at least three times.

20 . The method of claim 19 , wherein the storage material is capable of being reversibly cycled between the loading and the releasing at least one hundred times.

Assignees

• Alliance Sustainable Energy

Inventors

• Christensen Steven Thomas
• Gennett Thomas
• Marius Noemie
• Gross Karl Joseph

Classifications

• C01B3/0047

  containing a rare earth metal · CPC title

• B22F1/0547

  Nanofibres or nanotubes · CPC title

• B22F1/16

  Metallic particles coated with a non-metal (coated with lubricating or binding agents or with organic material B22F1/10) · CPC title

• B22F1/054

  Nanosized particles · CPC title

• B22F1/065

  Spherical particles · CPC title