Thermogravimetric analysis 12 Scanning electron microscopy 10 Thermoelectric equipment 10 Energy conservation 8 Nanostructured materials 8 Palm oil 8 Sustainable development 7 Tensile strength 7 Thermal conductivity 7 Thermodynamic stability 7 Atmospheric temperature 6 Electronic equipment 6 TJ Mechanical engineering and machinery 6 Environmental technology 5 Heat transfer 5 Physical properties 5 Thermal comfort 5 Thermodynamic properties 5 Air quality 4 Article 4 Cooling systems 4 Copper 4 Energy efficiency 4 Fruits 4 Hardness 4 Mass transfer 4 Mechanical and thermal properties 4 Nanofluid 4 Oxidation 4 Particle size 4