Novel peanut-like α-Fe2O3 superstructures: Oriented aggregation and Ostwald ripening in a one-pot solvothermal process

►Peanut-like α-Fe2O3 superstructures were prepared through a solvothermal route. ►Effects of reaction conditions on the morphology of the products were studied. ►A probable growth mechanism of the peanut-like structures was proposed.