Temperature Dependence of Internal Deformation Field in Zeolites

ORAL

Abstract

We studied temperature dependent internal deformation field distributions in zeolite microcrystals using coherent x-ray diffraction. We measured the coherent x-ray diffraction patterns around (200) and (020) Bragg peaks of the crystals. The three-dimensional real space images were obtained by phasing and inverting the oversampled diffraction patterns using the phase retrieval algorithm combined with error reduction and hybrid input-output method. The internal deformation fields show unusual temperature dependent behaviors which might be originated from the synthesis and calcination process.

*This work was supported by National Research Foundation of Korea (Nos. 2010-0000112 and R15-2008-006-01001-0), Seoul Research and Business Development Program (10816), and Sogang University Research Grant (2010).

Authors

  • Wonsuk Cha

    • Sogang University, Korea
    • Sogang University
  • Sanghoon Song

    • Sogang University, Korea
    • Sogang University
  • Nak Cheon Jeong

    • Sogang University, Korea
  • Tung Pham

    • Sogang University, Korea
  • Ross Harder

    • Advanced Photon Source, ANL
  • Gang Xiong

    • University College London, UK
  • Kyung Byung Yoon

    • Sogang University, Korea
  • Ian K. Robinson

    • University College London, UK
  • Hyunjung Kim

    • Sogang University, Korea
    • Sogang University