Inductively Coupled Nonthermal Plasma Synthesis of Size-Controlled γ-Al₂O₃ Nanocrystals.

ABSTRACT: Gamma alumina (γ-Al₂O₃) is widely used as a catalyst and catalytic support due to its high specific surface area and porosity. However, synthesis of γ-Al₂O₃ nanocrystals is often a complicated process requiring high temperatures or additional post-synthetic steps. Here, we report a single-step synthesis of size-controlled and monodisperse, facetted γ-Al₂O₃ nanocrystals in an inductively coupled nonthermal plasma reactor using trimethylaluminum and oxygen as precursors. Under optimized conditions, we observed phase-pure, cuboctahedral γ-Al₂O₃ nanocrystals with defined surface facets. Nuclear magnetic resonance studies revealed that nanocrystal surfaces are populated with AlO₆, AlO₅

SUBMITTER: Xiong Z 

PROVIDER: S-EPMC10221976 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature