Synthesis of curtain-like crumpled boehmite and γ-alumina nanosheets

Je Ruei Wen, Ming Han Liu, Chung Yuan Mou

研究成果: 雜誌貢獻文章同行評審

36 引文 斯高帕斯(Scopus)

摘要

Boehmite (γ-AlOOH) nanosheets with a curtain-like crumpled morphology have been synthesized via a template-free hydrothermal process in two stages. The formation of the crumpled 2D nanostructures was studied at 70-95 °C in stage-1 and 150°C in stage-2 hydrothermal processes, and a growth mechanism was proposed. The introduction of corrugations and wrinkles prevents the nanosheets from severe interface stacking. Based on the XRD, TEM, and N2 sorption analysis results, the thickness of the nanosheets is ca. 2.5-5 nm, which is composed of 2-4 lattice unit layers only. The crumpled boehmite nanosheets exhibit a high BET surface area of ca. 330 m2 g-1, and can be simply transformed into γ-Al2O3 with preservation of the morphology and ∼90% of the surface area after calcination.

原文英語
頁(從 - 到)1959-1967
頁數9
期刊CrystEngComm
17
發行號9
DOIs
出版狀態已發佈 - 3月 7 2015
對外發佈

ASJC Scopus subject areas

  • 化學 (全部)
  • 材料科學(全部)
  • 凝聚態物理學

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