Three-Dimensional Reticulated, Spongelike, Resilient Aerogels Assembled by SiC/Si3N4 Nanowires
| العنوان: | Three-Dimensional Reticulated, Spongelike, Resilient Aerogels Assembled by SiC/Si3N4 Nanowires |
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| المؤلفون: | Ya-Nan Qu, Youfei Zhang, Jia-Min Wu, Xiaoyan Zhang, Shengen Zhang, Jinlong Yang |
| المصدر: | Nano Letters. 21:4167-4175 |
| بيانات النشر: | American Chemical Society (ACS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Materials science, business.industry, Mechanical Engineering, Catalyst support, Nanowire, Bioengineering, Aerogel, 02 engineering and technology, General Chemistry, Polymer, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Thermal conductivity, chemistry, Thermal insulation, Nanofiber, General Materials Science, Composite material, 0210 nano-technology, Porosity, business |
| الوصف: | For nanofibrous aerogels, a three-dimensional porous structure with interwoven nanofibers as a pore wall has become an urgent demand, and it remains to be a challenge to ensure the mechanical stability and thermal insulation. Other than the reported nanofiber as raw materials to generate three-dimensional cellular nanofibrous aerogels, an alternative low-cost and facile procedure has been proposed here via tactfully utilizing polymer sponge as a template attached with reactive particles, followed by a carbothermal reduction process to realize nanowire growth and their replacement of the original framework. The resulting spongy aerogels with numerous interlaced SiC/Si3N4 nanowires as a skeleton exhibit an ultrahigh porosity of 99.79%. Meanwhile, compressive elasticity after a compression at strain of 35% for 400 cycles, a low thermal conductivity of 23.19 mW/(m K), an excellent absorption capacity of 33.9-95.3 times for varied organic solvents removal, along with flexibility in shape design favored by the initial organic sponge make this nanofibrous aerogel an ideal material for heat shielding, absorption, or catalyst support. |
| تدمد: | 1530-6992 1530-6984 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::bbc320f3f2de0f6cc3d772421e465355 https://doi.org/10.1021/acs.nanolett.0c04917 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........bbc320f3f2de0f6cc3d772421e465355 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 15306992 15306984 |
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