TY - JOUR
T1 - A manganese(II) phthalocyanine under water-oxidation reaction
T2 - New findings
AU - Mousazade, Younes
AU - Najafpour, Mohammad Mahdi
AU - Bagheri, Robabeh
AU - Jagličić, Zvonko
AU - Singh, Jitendra Pal
AU - Chae, Keun Hwa
AU - Song, Zhenlun
AU - Rodionova, Margarita V.
AU - Voloshin, Roman A.
AU - Shen, Jian Ren
AU - Ramakrishna, Seeram
AU - Allakhverdiev, Suleyman
N1 - Funding Information:
The authors are grateful to the Institute for Advanced Studies in Basic Sciences. The reported study was funded by a grant (no. 96003636) from the Iranian National Science Foundation (INSF), and by a grant from the Russian Science Foundation to SIA (no. 19-14-00118). ZJ acknowledges the financial support from the Slovenian Research Agency (research core funding no. P2-0348). RB and ZS are grateful to Ningbo Institute of Materials Technology for financial support. JPS and KHC acknowledge the financial support from the Korea Institute of Science and Technology (KIST).
Funding Information:
The authors are grateful to the Institute for Advanced Studies in Basic Sciences. The reported study was funded by a grant (no. 96003636) from the Iranian National Science Foundation (INSF), and by a grant from the Russian Science Foundation to SIA (no. 19-14-00118). ZJ acknowledges the financial support from the Slovenian Research Agency (research core funding no. P2-0348). RB and ZS are grateful to Ningbo Institute of Materials Technology for financial support. JPS and KHC acknowledge the financial support from the Korea Institute of Science and Technology (KIST)
Publisher Copyright:
© 2019 The Royal Society of Chemistry.
PY - 2019
Y1 - 2019
N2 - Phthalocyanines are a promising class of ligands for manganese because of their high binding affinity. This effect is suggested to be an important factor because phthalocyanines tightly bind manganese and stabilize it under moderate conditions. The strong donor power of phthalocyanine is also suggested as a critical factor to stabilize high-valent manganese phthalocyanine. Herein, a manganese(ii) phthalocyanine, which is stable under moderate conditions, was investigated under harsh electrochemical water oxidation. By scanning electron microscopy, transmission electron microscopy, energy dispersive spectrometry, X-ray diffraction, extended X-ray absorption fine structure analysis, X-ray absorption near edge structure analysis, chronoamperometry, magnetic measurements, Fourier-transform infrared spectroscopy, and electrochemical methods, it is shown that manganese phthalocyanine, a known molecular complex showing good stability under moderate conditions, could not withstand water oxidation catalysis and ultimately is altered to form catalytic oxide particles. Such nanosized Mn oxides are the true catalyst for water oxidation. Besides, we try to go a step forward to find an answer as to how Mn oxides form on the surface of the electrode.
AB - Phthalocyanines are a promising class of ligands for manganese because of their high binding affinity. This effect is suggested to be an important factor because phthalocyanines tightly bind manganese and stabilize it under moderate conditions. The strong donor power of phthalocyanine is also suggested as a critical factor to stabilize high-valent manganese phthalocyanine. Herein, a manganese(ii) phthalocyanine, which is stable under moderate conditions, was investigated under harsh electrochemical water oxidation. By scanning electron microscopy, transmission electron microscopy, energy dispersive spectrometry, X-ray diffraction, extended X-ray absorption fine structure analysis, X-ray absorption near edge structure analysis, chronoamperometry, magnetic measurements, Fourier-transform infrared spectroscopy, and electrochemical methods, it is shown that manganese phthalocyanine, a known molecular complex showing good stability under moderate conditions, could not withstand water oxidation catalysis and ultimately is altered to form catalytic oxide particles. Such nanosized Mn oxides are the true catalyst for water oxidation. Besides, we try to go a step forward to find an answer as to how Mn oxides form on the surface of the electrode.
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U2 - 10.1039/c9dt01790a
DO - 10.1039/c9dt01790a
M3 - Article
C2 - 31328758
AN - SCOPUS:85070784031
VL - 48
SP - 12147
EP - 12158
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 32
ER -