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Title: Quantitatively in Situ Imaging Silver Nanowire Hollowing Kinetics

We report the in-situ investigation of the morphological evolution of silver nanowires to hollow silver oxide nanotubes using transmission x-ray microscopy (TXM). Complex silver diffusion kinetics and hollowing process via the Kirkendall effect have been captured in real time. Further quantitative x-ray absorption analysis reveals the difference between the longitudinal and radial diffusions. In conclusion, the diffusion coefficient of silver in its oxide nanoshell is, for the first time, calculated to be 1.2 × 10 -13 cm 2/s from the geometrical parameters extracted from the TXM images.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [2] ;  [4]
  1. Nanjing Univ., Jiangsu (China); Bryn Mawr College, Bryn Mawr, PA (United States)
  2. Bryn Mawr College, Bryn Mawr, PA (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Temple Univ., Philadelphia, PA (United States)
  5. Nanjing Univ., Jiangsu (China)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 16; Journal Issue: 10; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
Temple University; China Scholarship Council; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Scientific User Facilities Division
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Kirkendall effect; diffusion coefficient; nanotubes; silver nanowire; transmission x-ray microscopy; void formation
OSTI Identifier:
1393205