In an article, author is Gu, Shengshen, once mentioned the application of 19798-80-2, Name is 4-Chloropyridin-2-amine, molecular formula is C5H5ClN2, molecular weight is 128.56, MDL number is MFCD04113820, category is pyridine-derivatives. Now introduce a scientific discovery about this category, Name: 4-Chloropyridin-2-amine.
Cobalt porphyrin immobilized on the TiO2 nanotube electrode for CO2 electroreduction in aqueous solution
Herein we report CO2 electrochemical reduction reaction (CO2 ERR) on the cobalt tetraphenylporphyrin (CoTPP) modified TiO2 nanotube (TNT) electrode. It was found the axial coordination of drop-casting solvent to CoTPP and the porphyrin structure are the major factors that have significant effects on the catalytic performance of the electrode. As confirmed by spectrophotometric titration, pyridine has a stronger coordination bond to CoTPP than DMF and THE thus leading to the highest efficiency among the dropcasting solvents tested in the study. Based on the spectrophotometric analysis, possible coordination mechanism between drop-casting solvents and CoTPP is put forward. On the other hand, introduction of -COOMe substituents in phenyl rings of CoTPP weakens the coordination bond between pyridine and CoTPP as clearly evidenced by deuterium NMR spectra, resulting in a detrimental effect on CO2 ERR. Therefore, the manipulation of the coordination environment around the metal center of immobilized catalyst is crucial in designing an efficient electrocatalytic system. (C) 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.
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Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem