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JOURNAL OF ALLOYS AND COMPOUNDS · 2018 · IF 3.779

Controlling the morphological evolution of iron oxide/alkoxide particles and their application in a superwetting surface

Pan Liu,Jiguang Liu,Jiahui Liu,Xia Dong,Rui Wang

Using nitrogen, the morphological evolution of iron oxide/alkoxide particles was investigated by altering the reaction temperature in a one-pot solvothermal synthesis , resulting in a series of particles with different shapes, such as smooth sheet-like, rough sheet-like and cubic particles. The particle shape began to transform at 180 °C due to the altered crystallization and compositions, accompanied by the evolution of the magnetic properties without post-calcination. Based on the above research, large flower-like particles could be prepared by a two-step heating process. In virtue of the structural and morphological advantages, the flower-like particles were applied in fabricating a superwetting surface.

研究领域: 材料化学 · 纳米科技 · 表面科学 · 功能材料 · 物理化学

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CERAMICS INTERNATIONAL · 2020 ·Vol. 46 ·期 7 ·9289-9296 · IF 3.83

Controlled-surfactant-directed solvothermal synthesis of γ-Al2O3 nanorods through a boehmite precursor route

Mohamed S. Selim,Ping Jing Mo,Yu Ping Zhang,Zhifeng Hao,Hongli Wen

Ceramic one-dimensional particles are fascinating nanomaterials for sustainable future industries. Nanorods of γ-Al 2 O 3 with single crystallinity and 10 nm diameter regime were newly developed through solvothermal procedure between AlCl 3 ·6H 2 O, NaOH, and sodium dodecylbenzene sulfonate at 200 °C for 24 h. Controlling the pH values, reaction time, temperature, and effect of surfactant during the solvothermal reaction was studied to control the morphology and structure of nanorods. The solvothermal procedure for preparing γ-AlOOH nanorods followed lamellar growth, assembly, and ripening routes. The γ-AlOOH nanorods were converted to γ-Al 2 O 3 through calcination reaction at 500 °C for 3 h. The produced γ-Al 2 O 3 nanorods were 10 nm average width, 100–200 nm average length, and exposed with [101] orientation and a linear structure. FTIR, HRTEM , FESEM, XRD , and X-ray photoelectron spectroscopy methods were used for characterizing the prepared nanomaterials . New features and applied fields are predictable for the designed γ-AlOOH and γ-Al 2 O 3 nanorods.

研究领域: 无机化学 · 纳米材料科学 · 溶剂热合成 · 陶瓷纳米材料 · 材料化学

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Controlling the morphological evolution of iron oxide/alkoxide particles and their application in a superwetting surface

Controlled-surfactant-directed solvothermal synthesis of γ-Al2O3 nanorods through a boehmite precursor route