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Title: Aerobijels: Ultralight Carbon Monoliths from Cocontinuous Emulsions

Journal Article · · Advanced Functional Materials
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  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

In this work, bijels are used to develop a new class of ultralight hierarchically porous aerogels exhibiting multimodal porosity across multiple length scales. Through in situ functionalization of a particle-laden liquid interface wherein binary liquid pairs are kinetically trapped out of equilibrium through interfacial jamming, monolithic and freestanding carbon electrodes are produced with prescribed bulk densities down to ≈2 mg cm-3. Exemplary electrokinetic experiments indicate that the bicontinuity of the pore structure is essential for enhancing transport to and from the active electrode surfaces, demonstrating that these materials possess a superior ability to accumulate and transport charge when compared to analogous systems with restricted pore connectivity and fluid throughput. This approach offers a new synthetic route to bicontinuous and hierarchical aerogel materials with nested multimodal porosities. Furthermore, the flexibility of this scheme can address critical issues related to transport-limited behaviors that arise in many technological fields, ranging from energy and catalysis research to remediation and sensing applications.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
LDRD; USDOE; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1645083
Report Number(s):
LA-UR--19-27282
Journal Information:
Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 6 Vol. 30; ISSN 1616-301X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

Bicontinuous Soft Solids with a Gradient in Channel Size Designed for Energy Storage Applications
  • French, David J.; Schofield, Andrew B.; Thijssen, Job H. J.
  • University of Edinburgh. School of Physics and Astronomy. Institute of Condensed Matter and Complex Systems https://doi.org/10.7488/ds/3185
dataset January 2021