Carbon-Sequestration Straw Cellulose-Aerogel Gradient Thermal Insulation Material

Sarkar, Arpita; Singh, Pratyush Kumar; Zhu, Long; Faghihi, Danial; Ren, Shenqiang

doi:10.1021/acsaenm.3c00664

Carbon-Sequestration Straw Cellulose-Aerogel Gradient Thermal Insulation Material

Journal Article · Thu Jan 11 00:00:00 EST 2024 · ACS Applied Engineering Materials

DOI:https://doi.org/10.1021/acsaenm.3c00664· OSTI ID:2499280

Sarkar, Arpita ^[1]; Singh, Pratyush Kumar ^[2]; Zhu, Long ^[1]; Faghihi, Danial ^[2]; ^[1]

University of Maryland, College Park, MD (United States)
University at Buffalo, The State University of New York, NY (United States)

Green superinsulation materials are essential for net-zero sustainable building envelopes. Realizing such potential is indispensable for simultaneously achieving carbon-sequestration and superinsulation performance. Here, we report the synthesis of a water glass-based silica aerogel exhibiting a thermal conductivity of 17.2 mW/m·K and a high porosity of 92%. Here, we used carbon-sequestration wheat straw fiber to create a gradient cellulose-aerogel composite to improve mechanical stability. The as-prepared gradient composite exhibits a thermal conductivity of 27.1 mW/m·K and a flexural modulus of 824 MPa, while exhibiting superhydrophobicity (water contact angle of 135.4°) for the development of green building insulation materials.

View Accepted Manuscript (DOE)

Research Organization:: University of Maryland, College Park, MD (United States)

Sponsoring Organization:: U.S. National Science Foundation (NSF); USDOE Advanced Research Projects Agency - Energy (ARPA-E)

Grant/Contract Number:: AR0001771

OSTI ID:: 2499280

Journal Information:: ACS Applied Engineering Materials, Journal Name: ACS Applied Engineering Materials Journal Issue: 1 Vol. 2; ISSN 2771-9545

Publisher:: ACS PublicationsCopyright Statement

Country of Publication:: United States

Language:: English

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36 MATERIALS SCIENCE
Wheat straw
aerogels
carbon-sequestration
cellulose aerogel gradient composites
composites
porosity
silica
silica aerogel
thermal conductivity
thermal insulation

Carbon-Sequestration Straw Cellulose-Aerogel Gradient Thermal Insulation Material

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References (15)

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