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Here, a new idea was proposed for template-free synthesis of hierarchical m-ZrO_2 nanorods and “their” possible formation mechanism based on a series of chemical reactions by simple hydrothermal method. The traditional preparation methods of hierarchical ZrO_2 nanorods involved inexpensive equipment, complicated process, and high production cost. The as-synthesized products composed of many nanorods with 180-200 nm in diameter and 5-7 μm in length. The fi nal product after annealing involved hierarchical monoclinic ZrO_2(m-ZrO_2) nanorods, namely, the big nanorod was made up of many small nanorods with 40-50 nm in diameter and 500-600 nm in length. The experimental results were useful in understanding the chemical properties of ZrB_2 and ZrO_2 and the design of the derivatives for m-ZrO_2 nanomaterials.
Here, a new idea was proposed for template-free synthesis of hierarchical m-ZrO 2 nanorods and “their ” possible formation mechanism based on a series of chemical reactions by simple hydrothermal method. The traditional preparation methods of hierarchical ZrO 2 nanorods involved inexpensive equipment , complicated process, and high production cost. The as-synthesized products composed of many nanorods with 180-200 nm in diameter and 5-7 μm in length. The fi nal product after annealing involved hierarchical monoclinic ZrO 2 (m-ZrO 2) nanorods, namely, the big nanorod was made up of many small nanorods with 40-50 nm in diameter and 500-600 nm in length. The experimental results were useful in understanding the chemical properties of ZrB_2 and ZrO_2 and the design of the derivatives for m- ZrO 2 nanomaterials.