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Local density augmentation of supercritical water probed by 4,4 '-bpyH(center dot) radical: A pulse radiolysis study

文献类型：期刊论文

作者Liu, Zhe1; Fang, Zhong1; Muroya, Yusa2; Fu, Haiying3; Yan, Yu4; Katsumura, Yosuke2,4; Lin, Mingzhang1,5
刊名CHEMICAL PHYSICS LETTERS
出版日期2016-07-16
卷号657期号:无页码:78-82
关键词Supercritical Water Pulse Radiolysis Radical Local Density Solute-solvent Interaction
DOI10.1016/j.cplett.2016.05.059
文献子类Article
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.
WOS关键词ACETOPHENONE N,N,N',N'-TETRAMETHYLBENZIDINE EXCIPLEX ; VISIBLE ABSORBENCY SPECTROSCOPY ; X-RAY-SCATTERING ; 400 DEGREES-C ; TEMPERATURE-DEPENDENCE ; CARBON-DIOXIDE ; ABSORPTION-SPECTRA ; CHEMICAL-REACTIONS ; AQUEOUS-SOLUTIONS ; FLUIDS
WOS研究方向Chemistry ; Physics
语种英语
WOS记录号WOS:000383444700014
资助机构National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122) ; National Natural Science Foundation of China(21377122)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/30817]  
专题合肥物质科学研究院_中国科学院核能安全技术研究所
作者单位1.Univ Sci & Technol China, Sch Nucl Sci & Technol, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China
2.Univ Tokyo, Nucl Profess Sch, Sch Engn, 2-22 Shirakata Shirane, Tokai, Ibaraki 3191188, Japan
3.Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China
4.Univ Tokyo, Sch Engn, Dept Nucl Engn & Management, Bunkyo Ku, Hongo 7-3-1, Tokyo 1138656, Japan
5.Chinese Acad Sci, Inst Nucl Energy Safety Technol, 350 Shushanhu Rd, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Zhe,Fang, Zhong,Muroya, Yusa,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(无):78-82.
APA Liu, Zhe.,Fang, Zhong.,Muroya, Yusa.,Fu, Haiying.,Yan, Yu.,...&Lin, Mingzhang.(2016).Local density augmentation of supercritical water probed by 4,4 '-bpyH(center dot) radical: A pulse radiolysis study.CHEMICAL PHYSICS LETTERS,657(无),78-82.
MLA Liu, Zhe,et al."Local density augmentation of supercritical water probed by 4,4 '-bpyH(center dot) radical: A pulse radiolysis study".CHEMICAL PHYSICS LETTERS 657.无(2016):78-82.

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来源：合肥物质科学研究院

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