TY - JOUR
T1 - Liquid-Templating Aerogels
AU - Hashemi, Seyyed Alireza
AU - Ghaffarkhah, Ahmadreza
AU - Goodarzi, Milad
AU - Nazemi, Amir
AU - Banvillet, Gabriel
AU - Milani, Abbas S.
AU - Soroush, Masoud
AU - Rojas, Orlando J.
AU - Ramakrishna, Seeram
AU - Wuttke, Stefan
AU - Russell, Thomas P.
AU - Kamkar, Milad
AU - Arjmand, Mohammad
N1 - Publisher Copyright:
© 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.
PY - 2023/10/19
Y1 - 2023/10/19
N2 - Modern materials science has witnessed the era of advanced fabrication methods to engineer functionality from the nano- to macroscales. Versatile fabrication and additive manufacturing methods are developed, but the ability to design a material for a given application is still limited. Here, a novel strategy that enables target-oriented manufacturing of ultra-lightweight aerogels with on-demand characteristics is introduced. The process relies on controllable liquid templating through interfacial complexation to generate tunable, stimuli-responsive 3D-structured (multiphase) filamentous liquid templates. The methodology involves nanoscale chemistry and microscale assembly of nanoparticles (NPs) at liquid–liquid interfaces to produce hierarchical macroscopic aerogels featuring multiscale porosity, ultralow density (3.05–3.41 mg cm−3), and high compressibility (90%) combined with elastic resilience and instant shape recovery. The challenges are overcome facing ultra-lightweight aerogels, including poor mechanical integrity and the inability to form predefined 3D constructs with on-demand functionality, for a multitude of applications. The controllable nature of the coined methodology enables tunable electromagnetic interference shielding with high specific shielding effectiveness (39 893 dB cm2 g−1), and one of the highest-ever reported oil-absorption capacities (487 times the initial weight of aerogel for chloroform), to be obtained. These properties originate from the engineerable nature of liquid templating, pushing the boundaries of lightweight materials to systematic function design and applications.
AB - Modern materials science has witnessed the era of advanced fabrication methods to engineer functionality from the nano- to macroscales. Versatile fabrication and additive manufacturing methods are developed, but the ability to design a material for a given application is still limited. Here, a novel strategy that enables target-oriented manufacturing of ultra-lightweight aerogels with on-demand characteristics is introduced. The process relies on controllable liquid templating through interfacial complexation to generate tunable, stimuli-responsive 3D-structured (multiphase) filamentous liquid templates. The methodology involves nanoscale chemistry and microscale assembly of nanoparticles (NPs) at liquid–liquid interfaces to produce hierarchical macroscopic aerogels featuring multiscale porosity, ultralow density (3.05–3.41 mg cm−3), and high compressibility (90%) combined with elastic resilience and instant shape recovery. The challenges are overcome facing ultra-lightweight aerogels, including poor mechanical integrity and the inability to form predefined 3D constructs with on-demand functionality, for a multitude of applications. The controllable nature of the coined methodology enables tunable electromagnetic interference shielding with high specific shielding effectiveness (39 893 dB cm2 g−1), and one of the highest-ever reported oil-absorption capacities (487 times the initial weight of aerogel for chloroform), to be obtained. These properties originate from the engineerable nature of liquid templating, pushing the boundaries of lightweight materials to systematic function design and applications.
KW - electromagnetic interference (EMI) shielding
KW - filamentous aerogels
KW - interfacial assembly
KW - nanoparticle assembly
KW - oil absorption
UR - https://www.scopus.com/pages/publications/85169543636
UR - https://www.scopus.com/pages/publications/85169543636#tab=citedBy
U2 - 10.1002/adma.202302826
DO - 10.1002/adma.202302826
M3 - Article
AN - SCOPUS:85169543636
SN - 0935-9648
VL - 35
JO - Advanced Materials
JF - Advanced Materials
IS - 42
M1 - 2302826
ER -