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[1]孙春英,黄勉如,李 亮,等.碳化硅纳米颗粒/聚吡咯复合气凝胶的制备与性能研究[J].武汉工程大学学报,2025,47(03):298-304.[doi:10.19843/j.cnki.CN42-1779/TQ.202404021]
 SUN Chunying,HUANG Mianru,LI Liang,et al.Preparation and properties of silicon carbide nanoparticles/polypyrrole composite aerogels[J].Journal of Wuhan Institute of Technology,2025,47(03):298-304.[doi:10.19843/j.cnki.CN42-1779/TQ.202404021]
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碳化硅纳米颗粒/聚吡咯复合气凝胶的制备与性能研究
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
47
期数:
2025年03期
页码:
298-304
栏目:
现代大化工
出版日期:
2025-06-30

文章信息/Info

Title:
Preparation and properties of silicon carbide nanoparticles/polypyrrole composite aerogels
文章编号:
1674 - 2869(2025)03 - 0298 - 07
作者:
武汉工程大学材料科学与工程学院,湖北 武汉 430205
Author(s):
School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan 430205,China
关键词:
Keywords:
分类号:
TP212;TQ427.26
DOI:
10.19843/j.cnki.CN42-1779/TQ.202404021
文献标志码:
A
摘要:
为了推进新能源的开发利用和实现能源的可持续发展,可利用电化学和光热转换技术对能源进行存储和转化。本文采用原位氧化聚合法,在低温条件下以九水硝酸铁为氧化剂将吡咯单体在碳化硅纳米颗粒表面进行聚合,通过控制反应时间和搅拌速度实现聚吡咯有效包覆,最后通过冷冻干燥得到碳化硅纳米颗粒/聚吡咯复合气凝胶。通过扫描电子显微镜、X射线衍射、傅里叶变换红外光谱、电化学测试和水蒸发实验等探究了复合气凝胶与聚吡咯气凝胶之间的性能差异,以及吡咯与碳化硅纳米颗粒的质量比对复合气凝胶的形貌、电化学性能和光热蒸发性能的影响规律。结果表明:碳化硅纳米颗粒与吡咯质量比为12.0∶193.8的复合气凝胶的电化学与光热性能最佳。该复合气凝胶在1 A·g-1的电流密度下的比电容为216.9 F·g-1,在200 mV·s-1的扫描速率下进行1 000次循环伏安测试后的比电容保持率为95.0%,其电化学性能与聚吡咯气凝胶相比有明显提升;1 kW·m-2光照强度下,复合气凝胶在模拟海水中的蒸发速率可达1.98 kg·m-2·h-1,而且在相同条件下进行12次光热循环后,其蒸发速率保持在1.98~2.03 kg·m-2·h-1范围内。
Abstract:
Electrochemical and photothermal conversion technologies are used for energy storage and conversion to promote the development and utilization of new energy and achieve sustainable energy development. In this study,an in situ oxidative polymerization method was used to polymerize pyrrole monomer on the surface of silicon carbide nanoparticles at low temperature using ferric nitrate hydrate as oxidant. And homogeneous encapsulation of polypyrrole was achieved by controlling the reaction time and stirring speed. The composite aerogels of silicon carbide nanoparticles/polypyrrole were obtained by freeze-drying. The performance differences between the composite aerogels and polypyrrole aerogels, as well as the effects of the mass ratio of pyrrole to silicon carbide nanoparticles on the morphology, electrochemical properties, and photothermal evaporation properties of the composite aerogels, were explored with scanning electron microscopy, X-ray diffraction,Fourier transform infrared spectroscopy, electrochemical tests, and water evaporation experiments. The results showed that the composite aerogel with a mass ratio of silicon carbide nanoparticles to pyrrole of 12.0∶193.8 has the best electrochemical and photothermal properties. The specific capacitance of the composite aerogel was 216.9 F·g-1 at a current density of 1 A·g-1,and the retention rate of the specific capacitance was 95.0% after 1 000 cyclic voltammetry tests at a scan rate of 200 mV·s-1. Its electrochemical performance was significantly improved compared with that of the polypyrrole aerogel. Under a light intensity of 1 kW·m-2,the evaporation rate of the composite aerogel in simulated seawater could reach 1.98 kg·m-2·h-1. And after 12 photothermal cycles under the same conditions,its evaporation rate remained in the range of 1.98-2.03 kg·m-2·h-1.

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相似文献/References:

备注/Memo

备注/Memo:
收稿日期:2024-04-15
基金项目:国家自然科学基金(U24A20554);湖北省重点研发专项(2023BAB100);贵州省重大专项(黔科合重大专项字[2024]012)
作者简介:孙春英,硕士研究生。Email:2445617296@qq.com
*通信作者:季家友,博士,教授。Email:Jijy@wit.edu.cn
引文格式:孙春英,黄勉如,李亮,等. 碳化硅纳米颗粒/聚吡咯复合气凝胶的制备与性能研究[J]. 武汉工程大学学报,2025,47(3):298-304.
更新日期/Last Update: 2025-07-09