A Facile Methodology for the Production of In Situ Inorganic Nanowire Hydrogels/Aerogels

Creating inorganic nanowire hydrogels/aerogels using various materials and inexpensive means remains an outstanding challenge despite their importance for many applications. Here, we present a facile methodology to enable highly porous inorganic nanowire hydrogel/aerogel production on a large scale...

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Main Authors: Jung, Hyun Young, Jung, Sungmi, Fang, Wenjing, Dresselhaus, Mildred, Kong, Jing
Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Format: Article
Language:en_US
Published: American Chemical Society (ACS) 2017
Online Access:http://hdl.handle.net/1721.1/111112
https://orcid.org/0000-0002-9950-1387
https://orcid.org/0000-0002-3416-3962
https://orcid.org/0000-0001-8492-2261
https://orcid.org/0000-0003-0551-1208
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author Jung, Hyun Young
Jung, Sungmi
Fang, Wenjing
Dresselhaus, Mildred
Kong, Jing
author2 Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
author_facet Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Jung, Hyun Young
Jung, Sungmi
Fang, Wenjing
Dresselhaus, Mildred
Kong, Jing
author_sort Jung, Hyun Young
collection MIT
description Creating inorganic nanowire hydrogels/aerogels using various materials and inexpensive means remains an outstanding challenge despite their importance for many applications. Here, we present a facile methodology to enable highly porous inorganic nanowire hydrogel/aerogel production on a large scale and at low cost. The hydrogels/aerogels are obtained from in situ hydrothermal synthesis of one-dimensional (1D) nanowires that directly form a cross-linking network during the synthesis process. Such a method not only offers great simplicity but also allows the interconnecting nanowires to have much longer length. The longer length offers aerogels with remarkable porosity and surface area extremely low densities (as low as 2.9 mg/cm3), are mechanically robust, and can have superelasticity by tuning the synthesis conditions. The nanowires in the hydrogels/aerogels serve both as structural support and active sites, for example, for catalysis or absorption. In this work, we have found that the as-grown hydrogels can be used directly as water filters to remove pollutants such as heavy metal ions and toxic organic contents. Our studies indicate that this method for nanowire hydrogels/aerogels production is not only economical but greatly augmented their applications in environmental, catalysis, sensing, absorption, energy storage, and beyond.
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spelling mit-1721.1/1111122022-09-29T11:56:50Z A Facile Methodology for the Production of In Situ Inorganic Nanowire Hydrogels/Aerogels Jung, Hyun Young Jung, Sungmi Fang, Wenjing Dresselhaus, Mildred Kong, Jing Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Department of Physics Jung, Sungmi Fang, Wenjing Dresselhaus, Mildred Kong, Jing Creating inorganic nanowire hydrogels/aerogels using various materials and inexpensive means remains an outstanding challenge despite their importance for many applications. Here, we present a facile methodology to enable highly porous inorganic nanowire hydrogel/aerogel production on a large scale and at low cost. The hydrogels/aerogels are obtained from in situ hydrothermal synthesis of one-dimensional (1D) nanowires that directly form a cross-linking network during the synthesis process. Such a method not only offers great simplicity but also allows the interconnecting nanowires to have much longer length. The longer length offers aerogels with remarkable porosity and surface area extremely low densities (as low as 2.9 mg/cm3), are mechanically robust, and can have superelasticity by tuning the synthesis conditions. The nanowires in the hydrogels/aerogels serve both as structural support and active sites, for example, for catalysis or absorption. In this work, we have found that the as-grown hydrogels can be used directly as water filters to remove pollutants such as heavy metal ions and toxic organic contents. Our studies indicate that this method for nanowire hydrogels/aerogels production is not only economical but greatly augmented their applications in environmental, catalysis, sensing, absorption, energy storage, and beyond. National Science Foundation (U.S.) (Award DMR 0845358) National Science Foundation (U.S.) (Grant DMR-100414) 2017-09-01T19:24:19Z 2017-09-01T19:24:19Z 2014-04 2013-11 Article http://purl.org/eprint/type/JournalArticle 1530-6984 1530-6992 http://hdl.handle.net/1721.1/111112 Jung, Sung Mi et al. “A Facile Methodology for the Production of In Situ Inorganic Nanowire Hydrogels/Aerogels.” Nano Letters 14, 4 (April 2014): 1810–1817 © 2014 American Chemical Society https://orcid.org/0000-0002-9950-1387 https://orcid.org/0000-0002-3416-3962 https://orcid.org/0000-0001-8492-2261 https://orcid.org/0000-0003-0551-1208 en_US http://dx.doi.org/10.1021/nl404392j Nano Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society (ACS) MIT Web Domain
spellingShingle Jung, Hyun Young
Jung, Sungmi
Fang, Wenjing
Dresselhaus, Mildred
Kong, Jing
A Facile Methodology for the Production of In Situ Inorganic Nanowire Hydrogels/Aerogels
title A Facile Methodology for the Production of In Situ Inorganic Nanowire Hydrogels/Aerogels
title_full A Facile Methodology for the Production of In Situ Inorganic Nanowire Hydrogels/Aerogels
title_fullStr A Facile Methodology for the Production of In Situ Inorganic Nanowire Hydrogels/Aerogels
title_full_unstemmed A Facile Methodology for the Production of In Situ Inorganic Nanowire Hydrogels/Aerogels
title_short A Facile Methodology for the Production of In Situ Inorganic Nanowire Hydrogels/Aerogels
title_sort facile methodology for the production of in situ inorganic nanowire hydrogels aerogels
url http://hdl.handle.net/1721.1/111112
https://orcid.org/0000-0002-9950-1387
https://orcid.org/0000-0002-3416-3962
https://orcid.org/0000-0001-8492-2261
https://orcid.org/0000-0003-0551-1208
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