Novel synthesis of lace-like nanoribbons of boehmite and gamma-alumina by dry gel conversion method

作者：Shen S C^*; Ng W K; Chen Q; Zeng X T; Tan Reginald B H

来源：Materials Letters, 2007, 61(21): 4280-4282.

DOI：10.1016/j.matlet.2007.01.085

• nanomaterials
• dry gel conversion
• alumina
• boehmite
• nanoribbons
• characterization method

Pure lace-like nanoribbons of AlOOH boehmite have been fabricated by an innovative dry gel conversion without the presence of catalysts and templates. Through steam-assisted crystallization at 200 degrees C for 48 h, the dried powder of amorphous aluminium hydroxide gel was transformed to lace-like nanoribbons in length of 1-2 mu m and width about 100 nm as well as thickness of 5-6 nm. After calcination at 600 degrees C for 5 h, gamma-Ai(2)O(3) was obtained and the morphology of lacelike was preserved.

• 出版日期2007-8