期刊
CHEMICAL ENGINEERING JOURNAL
卷 406, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2020.126390
关键词
Nanofluids; Ti3C2Tx MXene; Thermal conductivity; Viscosity; Stability
资金
- National Natural Science Foundation of China [51590902, 51676103]
- Natural Science Foundation of Shanghai [17ZR1411000]
- Key Subject of Shanghai Polytechnic University (Material Science and Engineering) [XXKZD1601]
- Gaoyuan Discipline of Shanghai-Environmental Science and Engineering (Resource Recycling Science and Engineering)
Nanofluids based on MXene, with high thermal conductivity and stability, show promising potential for heat transfer applications. The unique self-lubricating properties of MXene nanofluids make them stand out in terms of viscosity, compared to other nanomaterials like graphene and carbon nanotubes. Further research on MXene nanofluids could provide valuable insights for the development of heat transfer fluids.
Nanofluids as heat transfer fluids have shown huge potential in heat exchange systems. How to balance effective thermal conductivity, dispersion stability and viscosity has become one of crucial issues for the application of nanofluids. MXene nanosheets with high aspect ratio coupled with high thermal conductivity and hydrophilic properties are expected to be potential fluids fillers. In this study, comprehensive performance of ethylene glycol (EG) based nanofluids containing multilayer and delaminated single layer Ti3C2Tx MXene are investigated in detail. The thermal conductivity of nanofluids with 5 vol% of multilayer and single layer Ti3C2Tx increase by 53.1% and 64.9% compared with EG, respectively. It is interesting that the viscosity of 1 vol% of MXene nanofluids is much lower than those of graphene and multi-walled carbon nanotube with 0.1 vol% due to the excellent self-lubricating properties. Single layer Ti3C2Tx-EG nanofluids also exhibit excellent stability and no obvious sedimentation in 30 days. The detailed study on MXene nanofluids will provide a strategy for heat transfer fluids development.
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