Metallic reagent
View Patent ↗A reagent suitable for use as a catalyst comprises a first metal species substrate having a second reduced metal species coated thereon, the second reduced metal species being less electropositive than the first metal. Methods of manufacture are also provided.
1. A reagent suitable for use as a catalyst comprising: a first metal species substrate having a second reduced metal species coated thereon, the second reduced metal species being less electropositive than the first metal wherein the second metal reduced species comprises from about 0.1% to about 1% of the reagent by weight and further wherein the second metal reduced species is disposed on the first metal in a form selected from the group consisting of islands, spots, lines, dashes, weave form, or pattern form.
2. A reagent according to claim 1 , wherein the reagent is in a form selected from the group consisting of spheres, particles, turnings, blocks, beads, mesh, and combinations thereof.
3. A reagent according to claim 1 , wherein the first metal substrate is selected from the group consisting of alkaline earth metals, alkaline metals, transition metals, and alloys thereof.
4. A reagent according to claim 3 , wherein the first metal substrate is selected from the group consisting of Mg, V, Cr, Zn, Al, Li, Na, K, Be, Ca, Sr, Ba, Ti, Si, and alloys thereof.
5. A reagent according to claim 1 , wherein the second metal is selected from the group consisting of transition metals and alloys thereof.
6. A reagent composition according to claim 5 , wherein the second metal is selected from the group consisting of Ni, Co, Cu, Ti, V, Re, Ru, Rh, Ir, Pd, Pt, Ag, Au, and alloys thereof.
7. A reagent according to claim 1 , wherein the first metal substrate comprises Mg or alloys thereof and the second metal is selected from the group consisting of Ni, Co, Cu, and alloys thereof.
8. A reagent according to claim 1 , wherein the first metal substrate comprises V or alloys thereof and the second metal is selected from the group consisting of Ni, Co, Cu, and alloys thereof.
9. A reagent according to claim 1 , wherein the reagent comprises 1% of the second metal reduced species by weight.
10. A method of making a reagent comprising:
a. providing a substrate comprising a first metal; and
b. applying a second metal less electropositive than the metal of the first metal onto the substrate,
wherein the second metal is reduced to form a second metal reduced species and further Wherein the second metal comprises from about 0.1 % to about 1% of the reagent by weight and further wherein the second metal reduced species is disposed on the first metal in a form selected from the group consisting of islands, spots, lines, dashes, weave form, or pattern form.
11. A method of making a reagent according to claim 10 , wherein the substrate is in a form selected from the group consisting of in the form of spheres, particles, turnings, mesh, blocks, beads, or combinations thereof.
12. A method of making a reagent according to claim 10 , wherein applying a second metal is selected from the group consisting of immersion plating, chemical conversion, electroless plating, mechanical plating, detonation gun, plasma arc, vacuum plasma, wire arc, chemical vapor deposition, electron beam evaporation, ion beam assisted deposition, ion implantation, ion plating, physical vapor deposition, sputtering, and vacuum metallizing.
13. A method of making a reagent according to claim 10 , wherein applying a second metal is by immersion plating.
14. A method of making a reagent according to claim 10 , further comprising removing an oxide layer from the metal substrate.
15. A method of making a reagent according to claim 10 , wherein the first metal is selected from the group consisting of Mg, V, Cr, Zn, Al, Li, Na, K, Be, Ca, Sr, Ba, Ti, Si, and alloys thereof.
16. A method of making a reagent according to claim 10 , wherein the second metal is selected from the group consisting of Ni, Co, Cu, Ti, V, Re, Ru, Rh, Ir, Pd, Pt, Ag, Au, and alloys thereof.
17. A method of making a reagent comprising refluxing a metal substrate in the presence of a metal salt and a solvent, wherein the metal salt comprises a metal less electropositive than the metal of the substrate and further wherein the metal of the metal salt comprises 1% or less of the reagent by weight and the metal of the metal salt is disposed on the metal substrate in a form selected from the group consisting of islands, spots, lines, dashes, weave form, or pattern form.
18. A method of making a reagent according to claim 17 , wherein the solvent is an organic solvent selected from the group consisting of tetrahydrofuran and dimethoxyethane.
19. A method of making a reagent according to claim 17 , wherein the first metal substrate comprises a metal selected from the group consisting of Mg, V, Cr, Zn, Al, Li, Na, K, Be, Ca, Sr, Ba, Ti, Si, and alloys thereof.
20. A method of making a reagent according to claim 17 , wherein the metal salt comprises a metal selected from the group consisting of Ni, Co, Cu, Ti, V, Re, Ru, Rh, Ir, Pd, Pt, Ag, Au, and alloys thereof.
21. A method of making a reagent according to claim 17 , wherein the reagent comprises from about 0.1% to about 0.5% by weight of the less electropositive metal.