Academic Journal
Electrocatalytic Production of Hydrogen Gas by a Cobalt Formamidinate Complex
| العنوان: | Electrocatalytic Production of Hydrogen Gas by a Cobalt Formamidinate Complex |
|---|---|
| المؤلفون: | Wu,Yanyu, Aguirre Quintana,Luis M., Ventura,Karen, Barraza Alvarez,Isabel, Metta-Magaña,Alejandro, Villagrán,Dino |
| المصدر: | Journal of the Mexican Chemical Society v.63 n.3 2019 |
| بيانات النشر: | Sociedad Química de México A.C. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | cobalt, formamidinate, electrocatalytic, hydrogen gas |
| الوصف: | A molecular cobalt complex, Co(DippF)2 (where DippF is the anion of N,N’-bis[2,6-diisopropylphenyl]-formamidine), (1), is able to electrochemically produce hydrogen gas from the reduction of organic acids in homogeneous solutions. Compound 1 has a distorted square planar structure as evidenced through X-ray crystallography studies, and an effective magnetic moment of 4.13, obtained by the Evans method, that corresponds to three unpaired electrons. Compound 1 shows an irreversible cathodic peak at -1.59 V vs Fc/Fc+ which is assigned to the reduction of CoII to CoI. In the presence of organic acids the onset of catalytic current is observed at -1.2 V, -1.45 V and -1.89 V vs. Fc/Fc+ with p-toluenesulfonic acid, benzoic acid and phenol as the proton source, respectively, in MeCN as the solvent. Detection of hydrogen gas was obtained by GC-MS with Faradaic efficiencies ranging from 85% to 100%. Kinetic studies using foot-of-the-wave analysis (FOWA) reveal a linear dependence of the observed rate constant, k obs, against acid concentration in the range of 0.065 to 10.02 s-1 . |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | text/html |
| اللغة: | English |
| الاتاحة: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1870-249X2019000300056 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.4F6914CF |
| قاعدة البيانات: | BASE |
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