摘要
用X射线衍射、X射线光电子能谱、俄歇电子能谱和扫描电子显微术等考察了石墨炉升温过程中Sr(NO_3)_2在石墨探针表面上的形态变化,阐明了它的原子化机理.加热过程中Sr(NO_3)_2首先分解为SrO(s),再还原为SrC_2 ,后者进一步分解为Sr(s).锶的原子化源于金属蒸发.
The objective of this study is to investigate the atomization mechanism of Sr(NO3)2 on the graphite surface by probe atomization combined with other instrumental methods.The atomization mechanism of Sr(NO3)2(s)was proposed,in which Sr(NO3)2 was decomposed into SrO(s)at first during heating then SrO(s)was converted into SrC2(s)and further into Sr(s).The atomization of strontium originates from vaporization of metal.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第12期1517-1520,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
石墨探针
锶
原子化机理
硝酸锶
Graphite probe,Strontium,Atomization mechanism
