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Title: Carbon quantum dots and a method of making the same

Abstract

The present invention is directed to a method of preparing a carbon quantum dot. The carbon quantum dot can be prepared from a carbon precursor, such as a fullerene, and a complex metal hydride. The present invention also discloses a carbon quantum dot made by reacting a carbon precursor with a complex metal hydride and a polymer containing a carbon quantum dot made by reacting a carbon precursor with a complex metal hydride.

Inventors:
; ;
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1376205
Patent Number(s):
9,738,827
Application Number:
15/141,415
Assignee:
Savannah River Nuclear Solutions, LLC SRS
DOE Contract Number:
AC09-08SR22470
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 Apr 28
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Zidan, Ragaiy, Teprovich, Joseph A., and Washington, Aaron L. Carbon quantum dots and a method of making the same. United States: N. p., 2017. Web.
Zidan, Ragaiy, Teprovich, Joseph A., & Washington, Aaron L. Carbon quantum dots and a method of making the same. United States.
Zidan, Ragaiy, Teprovich, Joseph A., and Washington, Aaron L. 2017. "Carbon quantum dots and a method of making the same". United States. doi:. https://www.osti.gov/servlets/purl/1376205.
@article{osti_1376205,
title = {Carbon quantum dots and a method of making the same},
author = {Zidan, Ragaiy and Teprovich, Joseph A. and Washington, Aaron L.},
abstractNote = {The present invention is directed to a method of preparing a carbon quantum dot. The carbon quantum dot can be prepared from a carbon precursor, such as a fullerene, and a complex metal hydride. The present invention also discloses a carbon quantum dot made by reacting a carbon precursor with a complex metal hydride and a polymer containing a carbon quantum dot made by reacting a carbon precursor with a complex metal hydride.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2017,
month = 8
}

Patent:

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  • A novel carbonaceous electrode support material is disclosed characterized by a corrosion rate of 0.03 wt. %/hour or less when measured a5 550 millivolts vs. a Hg/HgO electrode in a 30 wt. % KOH electrolyte a5 30.degree. C. The electrode support material comprises a preselected carbon black material which has been heat-treated by heating the material to a temperature of from about 2500.degree. to about 3000.degree. C. over a period of from about 1 to about 5 hours in an inert atmosphere and then maintaining the preselected carbon black material at this temperature for a period of at least aboutmore » 1 hour, and preferably about 2 hours, in the inert atmosphere. A carbonaceous electrode suitable for use as an air electrode in a metal-air cell may be made from the electrode support material by shaping and forming it into a catalyst support and then impregnating it with a catalytically active material capable of catalyzing the reaction with oxygen at the air electrode of metal-air cell.« less
  • Catalytic membranes comprising highly-dispersed, catalytically-active metals in nanoporous carbon membranes and a novel single-phase process to produce the membranes.
  • A method of recovering carbon black includes the step of providing a carbonaceous source material containing carbon black. The carbonaceous source material is contacted with a sulfonation bath to produce a sulfonated material. The sulfonated material is pyrolyzed to produce a carbon black containing product comprising a glassy carbon matrix phase having carbon black dispersed therein. A method of making a battery electrode is also disclosed.
  • This patent describes a novel carbonaceous electrode support material characterized by a corrosion rate of 0.03 wt. %/hour r less when measured at 550 millivolts vs. a Hg/HgO electrode in a 30 wt. % KOH electrolyte a5 30{degrees} C. The electrode support material comprises a preselected carbon black material which has been heat-treated by heating the material to a temperature of from about 2500{degrees} to about 3000{degrees} C. over a period of from about 1 to about 5 hours in an inert atmosphere and then maintaining the preselected carbon black material at this temperature for a period of at leastmore » about 1 hour, and preferably about 2 hours, in the inert atmosphere. A carbonaceous electrode suitable for use as an air electrode in a metal-air cell may be made from the electrode support material by shaping and forming it into a catalyst support and then impregnating it with a catalytically active material capable of catalyzing the reaction with oxygen at the air electrode of metal-air cell.« less