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Multi-Functional Nanomaterials by Surfactant-Assisted Fabrication

Sandia National Laboratories

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Publications:

PDF Document PublicationMarket Sheet
(306 KB)

Image A &amp; B: templated by sufactant micelles, Image C &amp; D: nanospheres templated by emulsion, Image E: particles templated by micellar networks for phototherapy, and Image F: energetic materials (CL-20) confined by micelle/emulsions<br type="_moz" />
Image A & B: templated by sufactant micelles, Image C & D: nanospheres templated by emulsion, Image E: particles templated by micellar networks for phototherapy, and Image F: energetic materials (CL-20) confined by micelle/emulsions

Technology Marketing Summary

Due to current manufacturing methods, nanomaterials suffer from a lack of uniformity resulting in efficiency and reliability issues. Sandia National Laboratories developed an innovative crystallization method that produces well-defined multi-functional nanomaterials.

Description

Sandia’s nanomaterials are produced using a seeding and growing process within surfactantconfined nanostructures (micelles, emulsions, and mesophases). This process provides unique control over shape, size, composition, and reproducibility—currently unachievable with traditional manufacturing methods. This process also provides the ability to adjust chemical and physical nature of nanomaterials at different crystallization stages, enabling further tunability to achieve desirable functions and properties. Sandia has used this method to successfully produce a wide variety of nanomaterials such as porphyrins, energetic materials, and nanoparticles. The functional materials produced through this process exhibit superior performance at a fraction of the cost in important applications including photo-degradation of organic pollutants, photocatalytic hydrogen production, synthesis of fuel cell catalysts, and phototherapy in comparison with existing catalysts.

Benefits
  • Cost effective manufacturing method
  • Improved performance & reliability
  • Scalable production
  • Environmentally benign process
  • Ability to create novel particle shapes
  • Uniform shape, size, and composition
Applications and Industries
  • Photo-degradation of organic pollutants
  • Photocatalytic hydrogen production
  • Synthesis of fuel cell catalysts
  • Phototherapy
Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Patent 8,871,926
Patent
8,871,926
Synthesis of porphyrin nanostructures
The present disclosure generally relates to self-assembly methods for generating porphyrin nanostructures. For example, in one embodiment a method is provided that includes preparing a porphyrin solution and a surfactant solution. The porphyrin solution is then mixed with the surfactant solution at a concentration sufficient for confinement of the porphyrin molecules by the surfactant molecules. In some embodiments, the concentration of the surfactant is at or above its critical micelle concentration (CMC), which allows the surfactant to template the growth of the nanostructure over time. The size and morphology of the nanostructures may be affected by the type of porphyrin molecules used, the type of surfactant used, the concentration of the porphyrin and surfactant the pH of the mixture of the solutions, and the order of adding the reagents to the mixture, to name a few variables.
Sandia National Laboratories 10/28/2014
Issued
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
SD#11718Prototype - Sandia estimates this technology at a Technology Readiness Level 3. Concept has been demonstrated analytically or experimentally.Available03/26/201803/26/2018

Contact SNL About This Technology

To: <ip@sandia.gov>