IP Library Granted Patent US 9,630,845
Granted Patent B2
US 9,630,845 · App. 14/549,878 · Granted Apr 25, 2017

Homogeneous mixtures for nanoparticle synthesis

Inventors: Rakesh Agrawal (West Lafayette, IN); Bryce Chryst Walker (West Lafayette, IN)
Assignee: PURDUE RESEARCH FOUNDATION
C01B19/02C01B19/002C01B19/007C01P2002/72C01P2002/85C01P2004/04C01P2004/64
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Quick Facts
Patent No.
US 9,630,845
App. No.
14/549,878
Granted
Apr 25, 2017
Kind
B2
Abstract

Presented herein is a method for obtaining a dissolved selenium liquid mixture from solid selenium. The method involves mixing an amine solvent and a thiol solvent with the solid selenium to produce a liquid intermediate solution and removing a sulfur containing compound from the liquid intermediate solution to produce a dissolved selenium liquid mixture. A method for obtaining dissolved sulfur liquid mixture by mixing an amine with a thiol to produce a liquid solution that dissolves sulfur to produce a dissolved sulfur liquid mixture is also presented. In addition, a method for obtaining a dissolved sulfur and selenium liquid mixture from solid selenium and solid sulfur by mixing an amine solvent with a thiol solvent is presented.

Claims (10)

1. A method for obtaining a dissolved selenium liquid mixture from solid selenium, comprising:

mixing an amine solvent and a thiol solvent with the solid selenium to produce a liquid intermediate solution; and

removing a sulfur containing compound from the liquid intermediate solution to produce a dissolved selenium liquid mixture.

2. The method of claim 1 , wherein the amine is a primary, a secondary, a tertiary amine, or a mixture thereof.

3. The method of claim 1 , wherein the amine is a diamine, a triamine, a compound with multiple amino groups, or a mixture thereof.

4. The method of claim 1 , wherein the amine is represented by

and the thiol is represented by R 4 -SH, wherein R 1 , R 2 , R 3 , and R 4 are independently selected from the group consisting of alkane, alkene, alkyne, functional groups, and hydrogen.

5. The method of claim 1 , wherein the sulfur containing compound is a thiol or a disulfide.

6. The method of claim 5 , wherein at least 99% of the sulfur containing compound is removed.

7. The method of claim 5 , wherein the sulfur containing compound is the thiol solvent.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 9, 2015
From: AGRAWAL, RAKESH; WALKER, BRYCE
To: PURDUE RESEARCH FOUNDATION
Reel/Frame 035116/0668 →
CONFIRMATORY LICENSE Recorded Jan 2, 2015
From: PURDUE UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 034719/0380 →
Continuity (2)
Provisional Application 61906926 · Nov 21, 2013
Related Publication 20150137039A1 · May 21, 2015