Efficient Volumetric Absorption Solar Thermal Platforms Employing Thermally Stable - Solar Selective Nanofluids Engineered from Used Engine Oil

@article{Singh2019EfficientVA,
  title={Efficient Volumetric Absorption Solar Thermal Platforms Employing Thermally Stable - Solar Selective Nanofluids Engineered from Used Engine Oil},
  author={Nirmal Singh and Vikrant Khullar},
  journal={Scientific Reports},
  year={2019},
  volume={9}
}
We report a low cost and scalable method to synthesize solar selective nanofluids from ‘used engine oil’. The as-prepared nanofluids exhibit excellent long-term stability (presently tested up to 6 months under undisturbed stagnant conditions at room temperature) and photo-thermal conversion efficiency. Moreover, these were found to retain their stability and functional characteristics even after extended periods (72 hours) of high temperature (300°C) heating, ultra violet light exposure and… 

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