Kinetics of thiocyanate orientation conversion on Pt surface studied by in situ step-scan time-resolved microscope FTIR spectroscopy

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	Kinetics of thiocyanate orientation conversion on Pt surface studied by in situ step-scan time-resolved microscope FTIR spectroscopy
	Zhou, Z. Y. ; Tian, N. ; Sun, S. G. ; Sun SG(孙世刚)
刊名	http://dx.doi.org/10.1007/s11434-012-5473-8
	2013-02
关键词	electrochemical in situ FTIRS kinetics SCN- orientation conversion
英文摘要	Fast surface dynamic processes of thiocyanate adsorbed on a nanostructured Pt microelectrode were studied by in situ step-scan time-resolved microscope FTIR spectroscopy (in situ SSTR-MFTIRS) at a time resolution of 100 mu s. It was found that SCN-. adsorbs preferentially on Pt surface through N atom at low potential, while through S atom at high potential. The potential- induced orientation conversion between N- and S-bounded forms is very reversible, and occurs only within 2 ms after potential alternation. However, the rate constant (4x10(3) s(-1)) of conversion from N-to S-bounded adsorption is nearly double to that of the reverse process (2x10(3) s(-1)). The difference in kinetics of two processes may be explained through the hard-soft acid-base principle.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/61717]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Zhou, Z. Y.,Tian, N.,Sun, S. G.,et al. Kinetics of thiocyanate orientation conversion on Pt surface studied by in situ step-scan time-resolved microscope FTIR spectroscopy[J]. http://dx.doi.org/10.1007/s11434-012-5473-8,2013.
APA	Zhou, Z. Y.,Tian, N.,Sun, S. G.,&孙世刚.(2013).Kinetics of thiocyanate orientation conversion on Pt surface studied by in situ step-scan time-resolved microscope FTIR spectroscopy.http://dx.doi.org/10.1007/s11434-012-5473-8.
MLA	Zhou, Z. Y.,et al."Kinetics of thiocyanate orientation conversion on Pt surface studied by in situ step-scan time-resolved microscope FTIR spectroscopy".http://dx.doi.org/10.1007/s11434-012-5473-8 (2013).