Sustainable Energy Quiz

Advantages of using hydrogen as a fuel include its sustainability, as it can be used over and over again without getting depleted, and its availability widely free of cost. Additionally, it does not cause harm to the environment.

Hydrogen can be produced through various methods such as electrolysis of water, steam reforming of natural gas, and biomass gasification. It can be stored in compressed gas or liquid form, or through chemical storage methods such as metal hydrides and carbon nanotubes.

Silicon-based PV cells are constructed using layers of p-type and n-type silicon, forming a p-n junction. When photons from sunlight strike the cell, they create electron-hole pairs, generating an electric current. This current can be used as electricity.

<p>Quantum Dot Sensitized Solar Cells (QDSSC’s) are solar cells that use semiconductor nanoparticles (quantum dots) to absorb and convert sunlight into electricity. Their principle involves the efficient transfer of photo-generated electrons from the quantum dots to the conductive substrate, generating a current.</p> Signup and view all the answers

<p>Lithium-ion batteries consist of an anode, cathode, separator, electrolyte, and current collectors. During charging and discharging, lithium ions move between the anode and cathode, generating electrical energy. They are commonly used in portable electronic devices, electric vehicles, and energy storage systems.</p> Signup and view all the answers