高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 197.

• Chemistry in Materials Sciences • 上一篇    下一篇

Synthesis of Carbon Nanotubes:A New Solid-state Approach

XU Zhi-Ping, XU Rong, ZENG Hua-Chun   

  1. Department of Chemical and Environmental Engineering, Faculty of Engineering, and Chemical and Process Engineering Center, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260
  • 出版日期:2000-12-31 发布日期:2000-12-31

Synthesis of Carbon Nanotubes:A New Solid-state Approach

XU Zhi-Ping, XU Rong, ZENG Hua-Chun   

  1. Department of Chemical and Environmental Engineering, Faculty of Engineering, and Chemical and Process Engineering Center, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260
  • Online:2000-12-31 Published:2000-12-31

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摘要：

In recent years, investigation on layered double hydroxide materials (LDHs, anionic clays) becomes an active field in layered materials research owing to their many important applications[1-7]. Among the LDHs, hydrotalcite-like compounds (HTlcs) have attracted great attention due to their synthetic flexibility in preparing catalyst and ceramic precursors, and in tailor-making adsorbents, medicine stabilizers, and ion exchangers[1,2]. In the structure of HTlcs, divalent and trivalent cations are located in the center of oxygen octahedron formed by six hydroxyl groups of the two-dimensional brucite-like sheets[1,2]. To balance the extra charges carried by trivalent cations, anions have to be intercalated into the inter-brucite-like-sheet space (interlayer space) during the synthesis, which leads to the formation of a sandwich-like structure alternatively stacked in vertical direction of the sheets (c-axis), forming a 3D structure.

Abstract:

In recent years, investigation on layered double hydroxide materials (LDHs, anionic clays) becomes an active field in layered materials research owing to their many important applications[1-7]. Among the LDHs, hydrotalcite-like compounds (HTlcs) have attracted great attention due to their synthetic flexibility in preparing catalyst and ceramic precursors, and in tailor-making adsorbents, medicine stabilizers, and ion exchangers[1,2]. In the structure of HTlcs, divalent and trivalent cations are located in the center of oxygen octahedron formed by six hydroxyl groups of the two-dimensional brucite-like sheets[1,2]. To balance the extra charges carried by trivalent cations, anions have to be intercalated into the inter-brucite-like-sheet space (interlayer space) during the synthesis, which leads to the formation of a sandwich-like structure alternatively stacked in vertical direction of the sheets (c-axis), forming a 3D structure.

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