Multifunctionality of silver closo-boranes
|dc.identifier.citation||Paskevicius, M. and Hansen, B. and Jorgensen, M. and Richter, B. and Jensen, T. 2017. Multifunctionality of silver closo-boranes. Nature Communications. 8: Article ID 15136.|
Silver compounds share a rich history in technical applications including photography, catalysis, photocatalysis, cloud seeding and as antimicrobial agents. Here we present a class of silver compounds (Ag2B10H10 and Ag2B12H12) that are semiconductors with a bandgap at 2.3?eV in the green visible light spectrum. The silver boranes have extremely high ion conductivity and dynamic-anion facilitated Ag(+) migration is suggested based on the structural model. The ion conductivity is enhanced more than two orders of magnitude at room temperature (up to 3.2?mS?cm(-1)) by substitution with AgI to form new compounds. Furthermore, the closo-boranes show extremely fast silver nano-filament growth when excited by electrons during transmission electron microscope investigations. Ag nano-filaments can also be reabsorbed back into Ag2B12H12. These interesting properties demonstrate the multifunctionality of silver closo-boranes and open up avenues in a wide range of fields including photocatalysis, solid state ionics and nano-wire production.
|dc.publisher||Macmillan Publishers Limited|
|dc.title||Multifunctionality of silver closo-boranes|
|curtin.department||Department of Physics and Astronomy|