Pressure and Photoinduced Phase Transitions of Elemental Sulfur Confined by Open-End Single-Wall Carbon Nanohorns

doi:10.1021/acs.jpcc.8b00378

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	Pressure and Photoinduced Phase Transitions of Elemental Sulfur Confined by Open-End Single-Wall Carbon Nanohorns
	Li, Bo 1,2,3; Nan, Yanli 1; Hu, Yun 4; Zhao, Xiang 2,3; Song, Xiaolong 1; Li, Haining 5; Su, Lei 6
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2018-03-29
卷号	122 期号:12 页码:6976-6983
ISSN号	1932-7447
DOI	10.1021/acs.jpcc.8b00378
英文摘要	Confined molecules in tubular nanospaces of nanocarbons, for example, carbon nanotubes and nanohorns (CNHs), lead to extraordinary behavior and properties different from their bulk analogues. Here, we investigated the confinement effect of CNHs on high-pressure elastic and vibrational properties of sulfur via the diamond anvil cell technique. X-ray diffraction measurements up to 40 GPa demonstrate two phase transitions of S-I -> amorphous -> S-II. A fit of equation of state yields a bulk modulus of similar to 24.8 GPa, about 70% higher than that of soft sulfur. Different from previous Raman studies, laser with red light wavelength (694.8 nm) and high laser density (similar to 2 mu W mu m(-2)) was employed under the threshold for generating C-S bonds. We observed a similar photoinduced transition of S-I to amorphous sulfur at 4-6 GPa compared to the results taken from blue and green light excitation and low laser density (e.g., <28 mu W mu m(-2)), showing enhanced photothermal stability of sulfur by the aid of single-wall CNHs.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000429080000052
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46179]
专题	中国科学院化学研究所
通讯作者	Li, Bo; Song, Xiaolong; Su, Lei
作者单位	1.Xi An Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China 2.Xi An Jiao Tong Univ, Inst Chem Phys, Sch Sci, Xian 710049, Shaanxi, Peoples R China 3.Xi An Jiao Tong Univ, Dept Chem, Sch Sci, Xian 710049, Shaanxi, Peoples R China 4.Chengdu Univ Informat Technol, Coll Optoelect Technol, Chengdu 610225, Sichuan, Peoples R China 5.Zhengzhou Univ Light Ind, Ctr High Pressure Sci & Technol Res, Zhengzhou 450002, Henan, Peoples R China 6.Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Li, Bo,Nan, Yanli,Hu, Yun,et al. Pressure and Photoinduced Phase Transitions of Elemental Sulfur Confined by Open-End Single-Wall Carbon Nanohorns[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(12):6976-6983.
APA	Li, Bo.,Nan, Yanli.,Hu, Yun.,Zhao, Xiang.,Song, Xiaolong.,...&Su, Lei.(2018).Pressure and Photoinduced Phase Transitions of Elemental Sulfur Confined by Open-End Single-Wall Carbon Nanohorns.JOURNAL OF PHYSICAL CHEMISTRY C,122(12),6976-6983.
MLA	Li, Bo,et al."Pressure and Photoinduced Phase Transitions of Elemental Sulfur Confined by Open-End Single-Wall Carbon Nanohorns".JOURNAL OF PHYSICAL CHEMISTRY C 122.12(2018):6976-6983.