title: Birnessite-type MnO2 nanosheets with layered structures under high pressure: elimination of crystalline stacking faults and oriented laminar assembly.
abstract: Squeezing out crystalline stacking faults: Birnessite-type δ-phase MnO2 microflowers containing interconnected ultrathin nanosheets are synthesized through a microwave-assisted hydrothermal process and exhibit a layered crystalline structure with significant stacking faults. Compressing these MnO2 nanosheets in a diamond anvil cell with high pressure up to tens of GPa effectively eliminates the crystalline stacking faults.
authors.affiliation: Center for Nanoscale Materials, Argonne National Laboratory, 9700, South Cass Avenue, Argonne, Illinois, 60439, USA.
authors.forename: Yugang
authors.initials: Y
authors.lastname: Sun
authors.forename: Lin
authors.initials: L
authors.lastname: Wang
authors.forename: Yuzi
authors.initials: Y
authors.lastname: Liu
authors.forename: Yang
authors.initials: Y
authors.lastname: Ren
keywords: high pressure; manganese dioxide nanosheets; microwave synthesis; oriented assembly; stacking faults