中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Formation of Hydroxylamine (NH2OH) in Electron-Irradiated Ammonia-Water Ices
作者: Zheng, Weijun1, 2, 3;  Kaiser, Ralf I.1
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2010-04-29
DOI: 10.1021/jp911946m
卷: 114, 期:16, 页:5251-5255
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: We investigated chemical and physical processes in electron-irradiated ammonia-water ices at temperatures of 10 and 50 K. Chemically speaking, the formation of hydroxylamine (NH2OH) was observed in electron-irradiated ammonia-water ices. The synthesis of molecular hydrogen (H-2), molecular nitrogen (N-2), molecular oxygen (O-2), hydrazine (N2H4), and hydrogen peroxide (H2O2), which was also monitored in previous irradiation of pure ammonia and water ices, was also evident. These newly formed species were trapped inside of the ices and were released into the gas phase during the warm-up phase of the sample after the irradiation. A quantitative analysis of the data showed that the production rates of the newly formed species at 10 K are higher compared to those at 50 K. Our studies also suggest that hydroxylamine is likely formed by the recombination of amino (NH2) with hydroxyl (OH) radicals inside of the ices. Considering the physical effects on the ice sampled during the irradiation, the experiments provided compelling evidence that the crystalline ammonia-water ice samples can be partially converted to amorphous ices during the electron irradiation; similar to the chemical processes, the irradiation-induced amorphization of the ices is faster at 10 K than that at 50 K a finding which is similar to electron-irradiated crystalline water ices under identical conditions. However, the amorphization of water in water-ammonia ices was found to be faster than that in pure water ices at identical temperatures.
关键词[WOS]: CRYSTALLINE WATER ;  INDUCED AMORPHIZATION ;  TRAILING HEMISPHERES ;  INFRARED SPECTRUM ;  HYDROGEN-PEROXIDE ;  ION IRRADIATION ;  SOLAR-SYSTEM ;  ICY SURFACES ;  KUIPER-BELT ;  ENCELADUS
语种: 英语
WOS记录号: WOS:000276888800003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141946
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Univ Hawaii, Dept Chem, Honolulu, HI 96822 USA
2.Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
3.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China

Recommended Citation:
Zheng, Weijun,Kaiser, Ralf I.. Formation of Hydroxylamine (NH2OH) in Electron-Irradiated Ammonia-Water Ices[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2010,114(16):5251-5255.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Zheng, Weijun]'s Articles
 [Kaiser, Ralf I.]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Zheng, Weijun]‘s Articles
 [Kaiser, Ralf I.]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace