Virginia Commonwealth University

Indika U Arachchige

Umit Ozgur

Denis O Demchenko

Venkatesham Tallapally

Tanner A Nakagawara

Ebtesam H Eladgham

Dylan D Rodene

Low-cost and earth abundant, NiMoalloy nanocrystals, with sizes ranging from 18-43 nm and varying Mo composition (0.0-11.4%), were produced by a colloidal chemistry method for alkaline HER reactions. For a water splitting current density of ˜10 mA/cm, these alloys demonstrate over-potentials of −62 to −177 mV, which are comparable to commercial Pt-based electrocatalysts (−68 to −129 mV). The cubic NiMoalloy nanocrystals exhibit the highest activity as alkaline HER electrocatalysts, outperforming commercial Pt/C (20 wt %) catalyst.

Pure-phase cubic NiMoalloy nanoparticles as low-cost and earth abundant electrocatalysts

Colloidal synthesis of narrowly disperse, near IR emitting Group IV alloy quantum dots with wide range of Sn compositions via reduction of precursor halides is provided, allowing for less-toxic, earth abundant, and silicon-compatible Group IV alloy quantum dots for application in a broad range of electronic and photonic technologies.

Direct-gap group IV alloy nanocrystals with composition-tunable energy gaps and near-infrared photoluminescence

Growing community of inventors

Henrico, VA, United States of America

Indika U Arachchige