Nanomaterials in Advanced, High-Performance Aerogel Composites: A Review

Barrios, Elizabeth; Fox, David W.; Sip, Yuen Yee Li; Catarata, Ruginn; Calderon, Jean; Azim, Nilab; Afrin, Sajia; Zhang, Zeyang; Zhai, Lei

doi:10.3390/polym11040726

Cited by 131 publications

(75 citation statements)

References 207 publications

(293 reference statements)

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“…Aerogel, a 3D interconnected solid network structure with more than 90% occupied air, is a new classification of porous materials with high surface area and nanoscale pore sizes. [ 21–24 ] Since Kistler pioneered the first generation of SiO 2 aerogels, [ 25 ] numerous aerogels have been developed including inorganic, organic, inorganic/organic hybrid and carbon aerogels. [ 26–29 ] The 3D interconnected aerogel structure design provides an efficient approach for preparing metal oxides with prominent properties.…”

Section: Introductionmentioning

confidence: 99%

Emerging Dual‐Channel Transition‐Metal‐Oxide Quasiaerogels by Self‐Embedded Templating

Guo

Zhou

et al. 2020

Adv Funct Materials

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The lack of precise control of particle sizes is the critical challenge in the assembly of 3D interconnected transition-metal oxide (TMO) for newlyemerging energy conversion devices. A self-embedded templating strategy for preparing the TMO@carbon quasiaerogels (TMO@C-QAs) is proposed. By mimicking an aerogel structure at a microscale, the TMO@C-QA successfully assembles size-controllable TMO nanoparticles into 3D interconnected structure with surface-enriched carbon species. The morphological evolutions of intermediates verify that the self-embedded Ostwald ripening templating approach is responsible for the dualchannel TMO@C-QA formation. The general self-embedded templating strategy is easily extended to prepare various TMO@C-QAs, including the Co 3 O 4 @C-QA, Mn 3 O 4 @C-QA, Fe 2 O 3 @C-QA, and NiO@C-QA. Benefiting from the unparalleled 3D interconnected network of aerogels, the Co 3 O 4 @C-QA displays superior bifunctional catalytic activities for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), as well as high specific capacity and excellent long-term stability for lithium-ion battery (LIB) anode. A proof-of-concept battery-powered electrolyzer with Co 3 O 4 @C-QA cathode and anode powered by a full LIB with Co 3 O 4 @C-QA anode is presented. The battery-powered electrolyzer made of the state-ofthe-art TMOs can exhibit great competitive advantages due to its supreme multifunctional energy conversion performance for future water electrolysis.

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Section: Introductionmentioning

confidence: 99%

Emerging Dual‐Channel Transition‐Metal‐Oxide Quasiaerogels by Self‐Embedded Templating

Guo

Zhou

et al. 2020

Adv Funct Materials

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“…3-D Printing is a process of fabricating 3-D structures by assembling the building blocks layer by layer based on the virtual model of the structure [28]. This method is beneficial for the fabrication of composite and polymeric aerogels [29]. For example, nickel cobalt sulphide/grapheme composite aerogels were prepared by 3-D printing technology [30].…”

Section: -D Printingmentioning

confidence: 99%

Aerogels: promising nanostructured materials for energy conversion and storage applications

Alwin

Shajan

2020

Mater Renew Sustain Energy

103

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Aerogels are 3-D nanostructures of non-fluid colloidal interconnected porous networks consisting of loosely packed bonded particles that are expanded throughout its volume by gas and exhibit ultra-low density and high specific surface area. Aerogels are normally synthesized through a sol-gel method followed by a special drying technique such as supercritical drying or ambient pressure drying. The fascinating properties of aerogels like high surface area, open porous structure greatly influence the performances of energy conversion and storage devices and encourage the development of sustainable electrochemical devices. Therefore, this review describes on the applications of inorganic, organic and composite aerogel nanostructures to dye-sensitized solar cells, fuel cells, batteries and supercapacitors accompanied by the significant steps involved in the synthesis, mechanism of network formation and various drying techniques.

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“…Natural macromolecules are ideal choices and have been widely used for the preparation of aerogel-based biomaterials, including cellulose, collagen, gelatin, silk fibroin, chitosan, and so on. 23 Meanwhile, the inorganic materials and their composites have also been used for aerogel-based biomaterials, such as hydroxyapatite, silica, graphene. [21][22][23][24] It is easy to achieve a good biocompatibility by selecting the composition of aerogel-based biomaterials.…”

Section: Introductionmentioning

confidence: 99%

“…23 Meanwhile, the inorganic materials and their composites have also been used for aerogel-based biomaterials, such as hydroxyapatite, silica, graphene. [21][22][23][24] It is easy to achieve a good biocompatibility by selecting the composition of aerogel-based biomaterials. For example, many aerogel-based biomaterials originated from decellularized tissues have shown the porous structure and high biocompatibility, and have been used to facilitate tissue regeneration in clinical applications.…”

Section: Introductionmentioning

confidence: 99%

<p>Engineering of Aerogel-Based Biomaterials for Biomedical Applications</p>

Zheng¹,

Zhang²,

Ying³

et al. 2020

IJN

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Biomaterials with porous structure and high surface area attract growing interest in biomedical research and applications. Aerogel-based biomaterials, as highly porous materials that are made from different sources of macromolecules, inorganic materials, and composites, mimic the structures of the biological extracellular matrix (ECM), which is a three-dimensional network of natural macromolecules (e.g., collagen and glycoproteins), and provide structural support and exert biochemical effects to surrounding cells in tissues. In recent years, the higher requirements on biomaterials significantly promote the design and development of aerogel-based biomaterials with high biocompatibility and biological activity. These biomaterials with multilevel hierarchical structures display excellent biological functions by promoting cell adhesion, proliferation, and differentiation, which are critical for biomedical applications. This review highlights and discusses the recent progress in the preparation of aerogel-based biomaterials and their biomedical applications, including wound healing, bone regeneration, and drug delivery. Moreover, the current review provides different strategies for modulating the biological performance of aerogel-based biomaterials and further sheds light on the current status of these materials in biomedical research.

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Nanomaterials in Advanced, High-Performance Aerogel Composites: A Review

Cited by 131 publications

References 207 publications

Emerging Dual‐Channel Transition‐Metal‐Oxide Quasiaerogels by Self‐Embedded Templating

Emerging Dual‐Channel Transition‐Metal‐Oxide Quasiaerogels by Self‐Embedded Templating

Aerogels: promising nanostructured materials for energy conversion and storage applications

<p>Engineering of Aerogel-Based Biomaterials for Biomedical Applications</p>

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