Diffusion Behavior of Iodine in the Micro/Nano-Porous Graphite for Nuclear Reactor at High Temperature

• DOI: 10.20944/preprints202307.1246.v1
• Publication Date: 2023-07-21T00:10:32Z
• Authors: Mingbo Qi; Pengfei Lian; Pengda Li; Heyao Zhang; Jinxing Cheng; Qingbo Wang; Zhongfeng Tang; T. J. Pan; Jinliang Song; Zhanjun Liu
• Keywords: Nuclear Graphite; Nanoporous

Using analysis methods such as Rutherford backscattering Spectrometry, scanning electron microscopy, X-ray diffraction, and Raman spectroscopy, the diffusion behavior of iodine in micro/nano-porous graphite under high-temperature conditions was studied. The results indicate that leads to contraction microcrystals, a decrease interlayer spacing, an increase defect density, resulting reduction microcrystal size. Upon out iodine-loaded graphite, size increases, spacing appears return initial state, density decreases. By comparing performance nanoporous G400 G450 with microporous G500, it determined exhibits better inhibition compared graphite. Studying has significant academic significance engineering value for screening, design, optimization nuclear