Articles with "demetallation" as a keyword



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Investigation of the demetallation of 10-aryl substituted synthetic chlorins under acidic conditions.

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Published in 2020 at "Journal of inorganic biochemistry"

DOI: 10.1016/j.jinorgbio.2019.110979

Abstract: The acidic demetallation of a series of sparsely substituted Zn(II) chlorins is reported. The chlorins were functionalized in the 10-position with substituents ranging from strongly electron donating mesityl and p-methoxyphenyl to electron-withdrawing p-nitrophenyl and pentafluorophenyl… read more here.

Keywords: demetallation aryl; aryl substituted; investigation demetallation; substituted synthetic ... See more keywords
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Degradation and regeneration of Fe–Nx active sites for the oxygen reduction reaction: the role of surface oxidation, Fe demetallation and local carbon microporosity

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Published in 2021 at "Chemical Science"

DOI: 10.1039/d1sc03754d

Abstract: The severe degradation of Fe–N–C electrocatalysts during a long-term oxygen reduction reaction (ORR) has become a major obstacle for application in proton-exchange membrane fuel cells. Understanding the degradation mechanism and regeneration of aged Fe–N–C catalysts… read more here.

Keywords: degradation; carbon; oxidation; surface ... See more keywords

Controlling J-Aggregates Formation and Chirality Induction through Demetallation of a Zinc(II) Water Soluble Porphyrin

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Published in 2020 at "International Journal of Molecular Sciences"

DOI: 10.3390/ijms21114001

Abstract: Under acidic conditions and at high ionic strength, the zinc cation is removed from its metal complex with 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (TPPS4) thus leading to the diacid free porphyrin, that subsequently self-organize into J-aggregates. The kinetics of… read more here.

Keywords: zinc; controlling aggregates; aggregates formation; demetallation ... See more keywords