DataVXAdvanced MaterialsPaper
journal article·2023-10Open access

Liquid‐Templating Aerogels

Seyyed Alireza Hashemi, Ahmadreza Ghaffarkhah, Milad Goodarzi, Amir Nazemi, Gabriel Banvillet, Abbas S. Milani, Masoud Soroush, Orlando J. Rojas, Seeram Ramakrishna, Stefan Wuttke, Thomas P. Russell, Milad Kamkar, Mohammad Arjmand

Advanced Materials· Volume 35· Issue 42
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Source abstract

Abstract

Abstract 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.
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Research context

NanomaterialsMaterials processing

OpenAlex topics: Electromagnetic wave absorption materials · Advanced Sensor and Energy Harvesting Materials · Advanced Antenna and Metasurface Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Nanomaterials and Polymer Nanocomposites Laboratory School of Engineering University of British Columbia Kelowna BC V1V 1V7 Canada

Composites Research Network‐Okanagan Laboratory School of Engineering University of British Columbia Okanagan Campus Kelowna BC V1V 1V7 Canada

Bioproducts Institute Department of Chemical & Biological Engineering Department of Chemistry and Department of Wood Science 2360 East Mall The University of British Columbia Vancouver BC V6T 1Z3 Canada

Department of Chemical and Biological Engineering Drexel University Philadelphia PA 19104 USA

Department of Mechanical Engineering Center for Nanofibers and Nanotechnology National University of Singapore 21 Lower Kent Ridge Road Singapore 119077 Singapore

Basque Centre for Materials Applications & Nanostructures (BCMaterials) Bld. Martina Casiano 3rd. Floor UPV/EHU Science Park Barrio Sarriena s/n Leioa 48940 Spain

IKERBASQUE Basque Foundation for Science Bilbao 48013 Spain

Polymer Science and Engineering Department University of Massachusetts Amherst 120 Governors Drive Amherst MA 01003 USA

Materials Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USA

Advanced Institute for Materials Research (WPI‐AIMR) Tohoku University 2‐1‐1 Katahira Aoba Sendai 980–8577 Japan

Multi‐scale Materials Design Center Department of Chemical Engineering Waterloo Institute for Nanotechnology University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada

Funding

Natural Sciences and Engineering Research Council of Canada

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