Method of preparing nano-porous powder material
AssigneeShanghai Futing Technology Co., Ltd
InventorsYuanyun Zhao, Chuntao Chang, Chengliang Zhao
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a method of preparing a nano-porous powder material. The method includes: firstly removing A in the alloy AxTy by using an ultrasonically-assisted de-alloying method to prepare a nano-porous T coarse powder, and then, allowing the nano-porous T coarse powder to perform M-ization reaction with a gas reactant containing M to obtain a nano-porous T-M coarse powder, and finally, further crushing the nano-porous T-M coarse powder using a jet mill to obtain a nano-porous T-M fine powder. The method can achieve low-cost mass production of the nano-porous T-M fine powder, bringing broad application prospects.
Claims10
A method of preparing a nano-porous powder material, comprising:
- 1) preparing a precursor alloy AxTy, where x and y represent atomic percentage contents of an element A and an element T, respectively, and 0.1%≤y≤50%, x+y=100%;
- by using an ultrasonically-assisted de-alloying method, removing the element A in the alloy AxTy to obtain a primarily-ultrasonicated nano-porous T coarse powder;
- 2) allowing the nano-porous T coarse powder to contact with a gas containing M under a given temperature to enable all or part of the element T in the nano-porous T coarse powder to perform M-ization reaction with the M so as to obtain a nano-porous T-M coarse powder;
- 3) passing the nano-porous T-M coarse powder through a jet mill to undergo a crushing so as to produce a nano-porous T-M fine powder.
A method of preparing a nano-porous powder material, comprising:
- 1) preparing a precursor alloy AxTy, where x and y represent atomic percentage contents of an element A and an element T, respectively, and 0.1%≤y≤50%, x+y=100%;
- by using an ultrasonically-assisted de-alloying method, removing the element A in the alloy AxTy to obtain a primarily-ultrasonicated nano-porous T coarse powder;
- 2) allowing the nano-porous T coarse powder to contact with a gas containing M under a given temperature to enable all or part of the element T in the nano-porous T coarse powder to perform M-ization reaction with the M so as to obtain a nano-porous T-M coarse powder;
- and
- 3) passing the nano-porous T-M coarse powder through a jet mill to undergo a crushing so as to produce a nano-porous T-M fine powder, wherein, in the precursor alloy AxTy, T comprises at least one of Be, B, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Ge, Zr, Nb, Mo, Ag, Au, Pt, Pd, Hf, Ta, W, Bi;
- A comprises at least one of Li, Na, Mg, Al, K, Ca, Zn, Ga, Rb, Sn, Pb, Mn, Fe, Co, Ni, Cu, RE (rare earth element).
Dependencies are inferred from the claim text.