skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ultra-low-density silver aerogels via freeze-substitution [including Supplementary Online Material]

Abstract

In this paper, we reported a method for fabricating <10 mg/cm 3 silver aerogels via the freeze casting of aqueous nanowire suspensions followed by freeze substitution and supercritical drying. This method overcomes the limitations of traditional freeze drying and yields highly uniform, crack-free monoliths that undergo no measurable shrinkage with excellent mold reproduction. Significantly, freeze substitution enables the use of high concentrations of cryoprotectants to control the freezing process and, hence, the pore architecture of the resulting aerogels. Due to its physical nature, this method is applicable to the fabrication of materials with a broad range of compositions.

Authors:
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1476854
Alternate Identifier(s):
OSTI ID: 1470779; OSTI ID: 1476867
Report Number(s):
LLNL-JRNL-745061; LLNL-JRNL-745888
Journal ID: ISSN 2166-532X; 899535
Grant/Contract Number:  
AC52-07NA27344; 18-ERD-032
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
APL Materials
Additional Journal Information:
Journal Volume: 6; Journal Issue: 9; Journal ID: ISSN 2166-532X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Materials science, Nanoscience and Nanotechnology, Chemistry - Inorganic, organic, physical and analytical chemistry, Chemistry

Citation Formats

None, None. Ultra-low-density silver aerogels via freeze-substitution [including Supplementary Online Material]. United States: N. p., 2018. Web. doi:10.1063/1.5039521.
None, None. Ultra-low-density silver aerogels via freeze-substitution [including Supplementary Online Material]. United States. doi:10.1063/1.5039521.
None, None. Thu . "Ultra-low-density silver aerogels via freeze-substitution [including Supplementary Online Material]". United States. doi:10.1063/1.5039521. https://www.osti.gov/servlets/purl/1476854.
@article{osti_1476854,
title = {Ultra-low-density silver aerogels via freeze-substitution [including Supplementary Online Material]},
author = {None, None},
abstractNote = {In this paper, we reported a method for fabricating <10 mg/cm3 silver aerogels via the freeze casting of aqueous nanowire suspensions followed by freeze substitution and supercritical drying. This method overcomes the limitations of traditional freeze drying and yields highly uniform, crack-free monoliths that undergo no measurable shrinkage with excellent mold reproduction. Significantly, freeze substitution enables the use of high concentrations of cryoprotectants to control the freezing process and, hence, the pore architecture of the resulting aerogels. Due to its physical nature, this method is applicable to the fabrication of materials with a broad range of compositions.},
doi = {10.1063/1.5039521},
journal = {APL Materials},
number = 9,
volume = 6,
place = {United States},
year = {Thu Sep 13 00:00:00 EDT 2018},
month = {Thu Sep 13 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Ultralow-density copper nanowire aerogel monoliths with tunable mechanical and electrical properties
journal, January 2013

  • Tang, Yue; Yeo, Kai Leng; Chen, Yi
  • Journal of Materials Chemistry A, Vol. 1, Issue 23, p. 6723-6726
  • DOI: 10.1039/c3ta10969k

Surface modification, functionalization and bioconjugation of colloidal inorganic nanoparticles
journal, February 2010

  • Sperling, R. A.; Parak, W. J.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 368, Issue 1915, p. 1333-1383
  • DOI: 10.1098/rsta.2009.0273

Mechanical deformation of carbon-nanotube-based aerogels
journal, November 2012


A facile route for 3D aerogels from nanostructured 1D and 2D materials
journal, November 2012

  • Jung, Sung Mi; Jung, Hyun Young; Dresselhaus, Mildred S.
  • Scientific Reports, Vol. 2, Issue 1, Article No. 849
  • DOI: 10.1038/srep00849

Freeze-Casting of Porous Ceramics: A Review of Current Achievements and Issues
journal, March 2008


Nanoparticle Polymer Composites: Where Two Small Worlds Meet
journal, November 2006

  • Balazs, A. C.; Emrick, T.; Russell, T. P.
  • Science, Vol. 314, Issue 5802, p. 1107-1110
  • DOI: 10.1126/science.1130557