No abstract

Hexagonal corundum-type indium oxide (h-In 2 O 3) is the structure that normally exists in a hightemperature and pressure environment. This structure has been realised from ambient environment stable cubic indium oxide (c-In 2 O 3) using a high-energy ball milling approach at room temperature, in which the rearrangements of InO 6 polyhedral units take place via plastic deformation and large defect creation during the milling process. More interestingly, the high-temperature h-In 2 O 3 structure as anode materials in lithium-ion batteries exhibits lithium storage capabilities enhanced by up to 8 times compared to the c-In 2 O 3 phase. This study demonstrates an effective ambient environmental approach for the production of high-pressure/temperature structures, h-In 2 O 3 , which may be extended to explore new phases and novel properties in other oxide systems.

No abstract