Local density augmentation of supercritical water probed by 4,4 '-bpyH(center dot) radical: A pulse radiolysis study | |
Liu, Z; Fang, Z; Muroya, Y; Fu, HY; Yan, Y; Katsumura, Y; Lin, MZ | |
刊名 | CHEMICAL PHYSICS LETTERS |
2016 | |
卷号 | 657页码:78-82 |
关键词 | Supercritical water Pulse radiolysis Radical Local density Solute-solvent interaction |
ISSN号 | 0009-2614 |
通讯作者 | Lin, MZ (reprint author), Univ Sci & Technol China, Sch Nucl Sci & Technol, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China. |
英文摘要 | Solvatochromic shift of 4,4 '-bpyH(center dot) in aqueous solutions at elevated temperatures up to supercritical conditions and in various organic solvents with different dielectric constants, is investigated by pulse-radiolysis technique. 4,4 '-bpyH(center dot) shows a stronger solvent-solute interaction in water than in organic solvents, perhaps due to the hydrogen bond between 4,4 '-bpyH(center dot) and water. At 380 degrees C, local density augmentation, namely rho(local)-rho(bulk), in supercritical water becomes 280 kg m (3) (rho(bulk) = 208 kg m (3)), and the density enhancement factor is 8.9. Density fluctuation maximizes when rho(bulk) is around 120 kg m (3). Density inhomogeneity decreases as temperature rises, but is still remarkable at 400 degrees C. (C) 2016 Elsevier B. V. All rights reserved. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000383444700014 |
内容类型 | 期刊论文 |
源URL | [http://ir.sinap.ac.cn/handle/331007/26562] |
专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
推荐引用方式 GB/T 7714 | Liu, Z,Fang, Z,Muroya, Y,et al. Local density augmentation of supercritical water probed by 4,4 '-bpyH(center dot) radical: A pulse radiolysis study[J]. CHEMICAL PHYSICS LETTERS,2016,657:78-82. |
APA | Liu, Z.,Fang, Z.,Muroya, Y.,Fu, HY.,Yan, Y.,...&Lin, MZ.(2016).Local density augmentation of supercritical water probed by 4,4 '-bpyH(center dot) radical: A pulse radiolysis study.CHEMICAL PHYSICS LETTERS,657,78-82. |
MLA | Liu, Z,et al."Local density augmentation of supercritical water probed by 4,4 '-bpyH(center dot) radical: A pulse radiolysis study".CHEMICAL PHYSICS LETTERS 657(2016):78-82. |
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