H2Ta

H2ta is a fictional material concept used in speculative science fiction and hypothetical materials research to explore hydrogen storage and catalytic processes. It is not known to exist in real-world experiments.

The name combines the chemical notation for dihydrogen (H2) and the symbol for tantalum (Ta), indicating a hypothetical compound in which two hydrogen units are associated with a tantalum-containing framework.

In the imagined model, H2Ta would have a formula of H2Ta and a porous or layered structure designed to enable reversible uptake and release of hydrogen under practical conditions.

Predicted properties in speculative treatments include relatively high hydrogen storage capacity, favorable thermodynamics for adsorption and desorption, and chemical stability under modest temperatures. These projections vary across theoretical studies and are not experimentally validated.

Synthesis in fiction or hypothetical research would involve hydrogenation of a tantalum-containing scaffold, possibly through interfaces with transition-metal hydride chemistry, with attention to preventing irreversible bonding and ensuring reversibility.

Potential applications in such speculative contexts include energy storage for fuel cells, hydrogen transportation, and studies of metal-hydride chemistry.

Status: H2ta remains unobserved in laboratory settings and is largely discussed as a thought experiment or fictional construct used to illustrate design principles for hydrogen-storage materials.

See also hydrogen storage materials, metal hydrides, tantalum compounds.