Synthesis of nanoparticles using ethanol

Wang, Jia Xu

Title: Synthesis of nanoparticles using ethanol

Patent · Tue Jan 24 00:00:00 EST 2017

OSTI ID:1340581

Wang, Jia Xu

The present disclosure relates to methods for producing nanoparticles. The nanoparticles may be made using ethanol as the solvent and the reductant to fabricate noble-metal nanoparticles with a narrow particle size distributions, and to coat a thin metal shell on other metal cores. With or without carbon supports, particle size is controlled by fine-tuning the reduction power of ethanol, by adjusting the temperature, and by adding an alkaline solution during syntheses. The thickness of the added or coated metal shell can be varied easily from sub-monolayer to multiple layers in a seed-mediated growth process. The entire synthesis of designed core-shell catalysts can be completed using metal salts as the precursors with more than 98% yield; and, substantially no cleaning processes are necessary apart from simple rinsing. Accordingly, this method is considered to be a "green" chemistry method.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC02-98CH10886

Assignee:: Brookhaven Sciecne Associates, LLC (Upton, NY)

Patent Number(s):: 9,550,170

Application Number:: 13/860,316

OSTI ID:: 1340581

Resource Relation:: Patent File Date: 2013 Apr 10

Country of Publication:: United States

Language:: English

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