The use of renewable energy such as solar energy to produce hydrogen gas (H2), through the photocatalytic process of breaking the water molecule, is a promising alternative to conventional energy sources. In this context, ...

Friction is originated by energy dissipation events owing to the lost work of non-conservative forces. The nanotribological mechanisms through which this dissipation can occur include molecular deformation and thermal, ...

Control and reduction of friction can help in the elaboration of strategies of energy efficiency and in the reduction of carbon dioxide (CO2) emission. Although there are well established phenomenological laws for friction, ...