当前位置: X-MOL 学术Int. J. Chem. Kinet. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Mechanism of the oscillating chemiluminescence reaction in the luminol‐H2O2‐KSCN‐CuSO4‐NaOH system
International Journal of Chemical Kinetics ( IF 1.5 ) Pub Date : 2020-08-04 , DOI: 10.1002/kin.21409
Erika Toki 1 , Shiori Osaki 1 , Misato Nakamura 1 , Kazuki Tsuoka 1 , Nobutoshi Samejima 1 , Tetsuto Nakashima 1, 2 , Rin Abe 3 , Takahiro Oyama 3 , Koichi Tsukiyama 3
Affiliation  

We conducted a simultaneous measurement of the potential of Cu2+, oxidation‐reduction potential (ORP), and the chemiluminescence intensity in the luminol‐H2O2‐KSCN‐CuSO4‐NaOH system. Two types of chemiluminescence were identified: a very faint continuous chemiluminescence and a strong oscillating chemiluminescence. The correlation between the potential of Cu2+ and ORP was measured experimentally for the first time. The effect of the initial concentrations of Cu2+ and H2O2 on the overall chemiluminescence intensity and the oscillation frequency was investigated in detail. Time‐dependent concentration variation of the chemical species existing in the reaction system was calculated using a Runge‐Kutta method. Two elementary chemical reactions not considered previously were taken into consideration. The overall experimental behavior was well explainable with our simulation. Based upon the comparison of our simulation with the experiment, we proposed that the strong oscillating chemiluminescence was induced by the reaction of luminol with ·OS(O)CN.

中文翻译:

鲁米诺-H2O2-KSCN-CuSO4-NaOH体系中的化学发光振荡反应机理

我们同时测量了Luminol‐H 2 O 2 ‐KSCN‐CuSO 4 ‐ NaOH系统中Cu 2+的电位,氧化还原电位(ORP)和化学发光强度。鉴定出两种类型的化学发光:非常微弱的连续化学发光和强烈的振荡化学发光。首次通过实验测量了Cu 2+和ORP电位之间的相关性。Cu 2+和H 2 O 2初始浓度的影响对整体化学发光强度和振荡频率进行了详细研究。使用Runge-Kutta方法计算反应系统中存在的化学物质随时间的浓度变化。考虑了先前未考虑的两个基本化学反应。我们的仿真可以很好地解释整体实验行为。在将仿真结果与实验结果进行比较的基础上,我们提出了鲁米诺与·OS(O)CN的反应诱导了强烈的振荡化学发光。
更新日期:2020-08-04
down
wechat
bug