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Understanding the Joule-heating behaviours of electrically-heatable carbon-nanotube aerogels
Nanoscale Advances ( IF 4.6 ) Pub Date : 2020-12-28 , DOI: 10.1039/d0na01002b
Dong Xia 1 , Heng Li 2 , Peng Huang 3
Affiliation  

Cylindrical monolithic, electrically-heatable reduced carbon nanotube (rCNT) aerogels were synthesized to exploit their Joule-heating behaviours using two different arrangements (i.e. the top–bottom arrangement and the side–side arrangement) under different compressive strains. The top–bottom arrangement results in faster heating kinetics (up to 286 K min−1), higher heating efficiency (up to 80 °C W−1), a more uniform temperature distribution profile and higher electro-thermal conversion efficiency than the side–side arrangement. This study provides fundamental perspectives for exploiting the Joule-heating behaviours of geometrically complex nanocarbon aerogels, and thus will have important implications in strain-sensitive materials.

中文翻译:

了解电加热碳纳米管气凝胶的焦耳加热行为

使用两种不同的排列(即顶部-底部排列和侧面排列)在不同的压缩应变下合成了圆柱形整体式、可电加热的还原碳纳米管 (rCNT) 气凝胶,以利用它们的焦耳加热行为。顶部-底部排列导致更快的加热动力学(高达 286 K min -1)、更高的加热效率(高达 80 °CW -1)、更均匀的温度分布曲线和更高的电热转换效率。侧面安排。这项研究为利用几何复杂的纳米碳气凝胶的焦耳加热行为提供了基本视角,因此将对应变敏感材料产生重要影响。
更新日期:2021-01-21
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