Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 12147-12158 |
| Number of pages | 12 |
| Journal | Dalton Transactions |
| Volume | 48 |
| Issue number | 32 |
| DOIs | |
| Publication status | Published - Jan 1 2019 |
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ASJC Scopus subject areas
- Inorganic Chemistry
Cite this
A manganese(II) phthalocyanine under water-oxidation reaction : New findings. / Mousazade, Younes; Najafpour, Mohammad Mahdi; Bagheri, Robabeh; Jagličić, Zvonko; Singh, Jitendra Pal; Chae, Keun Hwa; Song, Zhenlun; Rodionova, Margarita V.; Voloshin, Roman A.; Shen, Jian-Ren; Ramakrishna, Seeram; Allakhverdiev, Suleyman.
In: Dalton Transactions, Vol. 48, No. 32, 01.01.2019, p. 12147-12158.Research output: Contribution to journal › Article
}
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
PY - 2019/1/1
Y1 - 2019/1/1
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.
UR - http://www.scopus.com/inward/record.url?scp=85070784031&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85070784031&partnerID=8YFLogxK
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 -