Building with bubbles: the formation of high surface area honeycomb-like films via hydrogen bubble templated electrodeposition

While the evolution of hydrogen gas is often a troublesome process accompanying electrodeposition, this feature can be exploited to template the growth of highly porous surfaces. This process, known as the dynamic hydrogen bubble template (DHBT) method, can be utilised to create a wide range of macroporous films with nanostructured pore walls. This feature article presents an overview of the status of the DHBT technique, highlighting preparation techniques and emerging applications.