Synthesis of cation-intercalated titanate nanobelts

Lei Miao, Sakae Tanemura, Rong Huang, Chengyan Liu, Chun Ming Huang, Gang Xu

研究成果: Article

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Monovalent, bivalent and trivalent cations of Li +, Sn 2+, Al 3+, Fe 3+ with different values of electronegativity were designed as doped-ions to prepare cations-intercalated titanate nanobelts through ex-situ ion-exchange reaction. XRD results revealed that the d 200 values of layered TNBs decreased as the following sequence: Li-intercalated TNBs > Al-intercalated TNBs > Fe-intercalated TNBs > Sn-intercalated TNBs. The electronegativity differences between respective doped-cations and oxygen can well explain the trend of the reduction of d 200 values for the synthesized layered nanobelts with different cations. The width change of nanobelts depending on intercalated cations showed similar tendency as that of d 200 excluding Sn-intercalated case. That is mostly due to the crystallization of SnO 2 nanoparticles on the nanobelts. Sn 2+ is easily crystallized to form SnO 2 nanoparticles on the surface of TNBs and being considered as unfavorable metal dopant for the present intercalation purpose. The reduction of d 200 values of the doped TNBs from that of the undoped TNBs confirms the intercalation of the doped cations into layered structure. Such simple electronegativitydifference depending mechanism may be convenient for the designing of metal ion intercalation into octahedral TiO 6 layered-oxide materials.

元の言語English
ページ(範囲)9267-9273
ページ数7
ジャーナルJournal of Nanoscience and Nanotechnology
11
発行部数10
DOI
出版物ステータスPublished - 2011
外部発表Yes

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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