The RC car that runs on aluminium
Inspired by Doc Brown’s 2015 DeLorean that runs on garbage, Aleix Llovet and Xavier Salueña created an RC car that runs on aluminum pop tabs. The dAlh2Orean captures hydrogen created by the interaction of sodium hydroxide and aluminium and then the hydrogen is used to power an on-board fuel cell, leaving no polluting waste material.
Better yet, the leftover aluminum can be repurposed for more fuel:
The aluminium hydroxide can be converted in alumina throughout a calcination process. With the alumina, aluminium can be obtained, in this case is more pure than the aluminium is currently recycled, and the same purity which is extracted from opencast mines bauxite, which is very dangerous for the environment.