Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 4753-4756 |
| Number of pages | 4 |
| Journal | Angewandte Chemie: International Edition |
| Volume | 56 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 1 Jan 2017 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- life-cycle assessment
- production technology
- silica aerogels
- solvents
- thermal insulation
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Fast and Minimal-Solvent Production of Superinsulating Silica Aerogel Granulate. / Huber, Lukas; Zhao, Shanyu; Malfait, Wim J.; Vares, Sirje; Koebel, Matthias M.
In: Angewandte Chemie: International Edition, Vol. 56, No. 17, 01.01.2017, p. 4753-4756.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Fast and Minimal-Solvent Production of Superinsulating Silica Aerogel Granulate
AU - Huber, Lukas
AU - Zhao, Shanyu
AU - Malfait, Wim J.
AU - Vares, Sirje
AU - Koebel, Matthias M.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - With their low thermal conductivity (?), silica aerogels can reduce carbon emissions from heating and cooling demands, but their widespread adoption is limited by the high production cost. A one-pot synthesis for silica aerogel granulate is presented that drastically reduces solvent use, production time, and global warming potential. The inclusion of the hydrophobization agent prior to gelation with a post-gelation activation step, enables a complete production cycle of less than four hours at the lab scale for a solvent use close to the theoretical minimum, and limits the global warming potential. Importantly, the one-pot aerogel granulate retains the exceptional properties associated with silica aerogel, mostly ?=14.4±1.0mWm-1K-1 for the pilot scale materials, about half that of standing air (26mWm-1K-1). The resource-, time-, and cost-effective production will allow silica aerogels to break out of its niche into the mainstream building and industrial insulation markets.
AB - With their low thermal conductivity (?), silica aerogels can reduce carbon emissions from heating and cooling demands, but their widespread adoption is limited by the high production cost. A one-pot synthesis for silica aerogel granulate is presented that drastically reduces solvent use, production time, and global warming potential. The inclusion of the hydrophobization agent prior to gelation with a post-gelation activation step, enables a complete production cycle of less than four hours at the lab scale for a solvent use close to the theoretical minimum, and limits the global warming potential. Importantly, the one-pot aerogel granulate retains the exceptional properties associated with silica aerogel, mostly ?=14.4±1.0mWm-1K-1 for the pilot scale materials, about half that of standing air (26mWm-1K-1). The resource-, time-, and cost-effective production will allow silica aerogels to break out of its niche into the mainstream building and industrial insulation markets.
KW - life-cycle assessment
KW - production technology
KW - silica aerogels
KW - solvents
KW - thermal insulation
UR - http://www.scopus.com/inward/record.url?scp=85015994785&partnerID=8YFLogxK
U2 - 10.1002/anie.201700836
DO - 10.1002/anie.201700836
M3 - Article
VL - 56
SP - 4753
EP - 4756
JO - Angewandte Chemie: International Edition
JF - Angewandte Chemie: International Edition
SN - 1433-7851
IS - 17
ER -