A Nanofibrillated Cellulose-Based Electrothermal Aerogel Constructed with Carbon Nanotubes and Graphene.
A Nanofibrillated Cellulose-Based Electrothermal Aerogel Constructed with Carbon Nanotubes and Graphene.
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由碳纳米管和石墨烯构建的纳米原纤化纤维素基电热气凝胶
DOI：
10.3390/molecules25173836
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发表时间：
2020-08-24
期刊：
影响因子：
--
通讯作者：
Yuan Q
中科院分区：
文献类型：
--
作者：
Zhuo B;Cao S;Li X;Liang J;Bei Z;Yang Y;Yuan Q
纳米原纤化纤维素（NFC）作为一种环境友好的基体材料，在制备柔性气凝胶复合材料方面具有优越性，但目前还没有基于NFC的多孔气凝胶的研究。因此，本文以NFC为骨架，结合多壁碳纳米管（MWCNTs）和石墨烯（GP），通过简单经济的冷冻干燥方法制备了NFC/MWCNTs/GP气凝胶（CCGA）。在将CCGA与电极连接之后，最终组装了可编程CCGA。结果表明，当NFC/MWCNT/GP悬浮液的浓度为5 mg mL-1且NFC量为80重量%时，在3000 W m−2和2000 W m−2时，CCGA的最大稳态温升分别约为62.0 °C和40.4 °C。在2000 W m-2的功率密度下，CCGA的电阻变化率在7 mg mL-1的浓度下接近15%。形成的三维多孔结构有利于热交换。因此，可使用的MEMS CCGA作为一个潜在的轻质基板的高效MEMS器件。
Nanofibrillated cellulose (NFC) as an environmentally friendly substrate material has superiority for flexible electrothermal composite, while there is currently no research on porous NFC based electrothermal aerogel. Therefore, this work used NFC as a skeleton, combined with multi-walled carbon nanotubes (MWCNTs) and graphene (GP), to prepare NFC/MWCNTs/GP aerogel (CCGA) via a simple and economic freeze-drying method. The electrothermal CCGA was finally assembled after connecting CCGA with electrodes. The results show that when the concentration of the NFC/MWCNTs/GP suspension was 5 mg mL−1 and NFC amount was 80 wt.%, the maximum steady-state temperature rise of electrothermal CCGA at 3000 W m−2 and 2000 W m−2 was of about 62.0 °C and 40.4 °C, respectively. The resistance change rate of the CCGA was nearly 15% at the concentration of 7 mg mL−1 under the power density of 2000 W m−2. The formed three-dimensional porous structure is conducive to the heat exchange. Consequently, the electrothermal CCGA can be used as a potential lightweight substrate for efficient electrothermal devices.
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影响因子：
11.2
作者：
Lee, Tae-Won;Jeong, Young Gyu
通讯作者：
Jeong, Young Gyu
影响因子：
8.6
作者：
Kim, P;Shi, L;McEuen, PL
通讯作者：
McEuen, PL
DOI：
10.1016/j.compositesa.2007.12.001
发表时间：
2008-01-01
影响因子：
8.7
作者：
Le Troedec, Marianne;Sedan, David;Krausz, Pierre
通讯作者：
Krausz, Pierre
影响因子：
19
作者：
Lee, Sun Hwa;Lee, Duck Hyun;Kim, Sang Ouk
通讯作者：
Kim, Sang Ouk
多功能芳纶纳米纤维/碳纳米管杂化气凝胶薄膜
影响因子：
17.1
作者：
Hu, Peiying;Lyu, Jing;Zhang, Xuetong
通讯作者：
Zhang, Xuetong