Abstract
The water-oxidizing complex or oxygen-evolving complex in plants, algae and cyanobacteria is an Mn4CaO5 cluster catalysing light-induced water oxidation. Herein we report that nano-sized Mn oxide/carbon aerogel is an active and low-density catalyst toward water oxidation. The composite was synthesized by a simple, low-cost procedure with different ratio of carbon aerogel to Mn oxide and characterized by scanning electron microscopy, energy-dispersive spectroscopy, high resolution transmission electron microscopy, X-ray diffraction, electronic spectroscopy, Fourier transform infrared spectroscopy, and atomic absorption spectroscopy. Then, the water-oxidizing activity of this composite was considered in the presence of cerium(IV) ammonium nitrate. The composites with a high ratio of Mn oxide to carbon aerogel are good Mn-based catalysts with turnover frequencies of ∼0.33 (mmol O2/(mol Mn·s)). In addition to the water-oxidizing activities of these composites under different conditions, their self-healing reaction in the presence of cerium(IV) ammonium nitrate was studied. We also compare the composite with graphene quantum dots/Mn oxide, which is not stable under these conditions. Using hydrogen to store sustainable energies is a promising strategy in the near future and our results show that nano-sized Mn oxide/carbon aerogel is a promising catalyst for water-splitting systems toward hydrogen evolution.
| Original language | English |
|---|---|
| Pages (from-to) | 2466-2476 |
| Number of pages | 11 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 41 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Jan 30 2016 |
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Keywords
- Artificial photosynthesis
- Carbon aerogel
- Manganese oxide
- Nanotechnology
- Oxygen
- Self-healing
- Water oxidation
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology
Cite this
Nanostructured manganese oxide on frozen smoke : A new water-oxidizing composite. / Najafpour, M. M.; Salimi, S.; Balaghi, S. Esmael; Hołyńska, M.; Tomo, T.; Sadr, Moayad Hossaini; Soltani, Behzad; Shen, Jian-Ren; Veziroglu, T. N.; Allakhverdiev, Suleyman.
In: International Journal of Hydrogen Energy, Vol. 41, No. 4, 30.01.2016, p. 2466-2476.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nanostructured manganese oxide on frozen smoke
T2 - A new water-oxidizing composite
AU - Najafpour, M. M.
AU - Salimi, S.
AU - Balaghi, S. Esmael
AU - Hołyńska, M.
AU - Tomo, T.
AU - Sadr, Moayad Hossaini
AU - Soltani, Behzad
AU - Shen, Jian-Ren
AU - Veziroglu, T. N.
AU - Allakhverdiev, Suleyman
PY - 2016/1/30
Y1 - 2016/1/30
N2 - The water-oxidizing complex or oxygen-evolving complex in plants, algae and cyanobacteria is an Mn4CaO5 cluster catalysing light-induced water oxidation. Herein we report that nano-sized Mn oxide/carbon aerogel is an active and low-density catalyst toward water oxidation. The composite was synthesized by a simple, low-cost procedure with different ratio of carbon aerogel to Mn oxide and characterized by scanning electron microscopy, energy-dispersive spectroscopy, high resolution transmission electron microscopy, X-ray diffraction, electronic spectroscopy, Fourier transform infrared spectroscopy, and atomic absorption spectroscopy. Then, the water-oxidizing activity of this composite was considered in the presence of cerium(IV) ammonium nitrate. The composites with a high ratio of Mn oxide to carbon aerogel are good Mn-based catalysts with turnover frequencies of ∼0.33 (mmol O2/(mol Mn·s)). In addition to the water-oxidizing activities of these composites under different conditions, their self-healing reaction in the presence of cerium(IV) ammonium nitrate was studied. We also compare the composite with graphene quantum dots/Mn oxide, which is not stable under these conditions. Using hydrogen to store sustainable energies is a promising strategy in the near future and our results show that nano-sized Mn oxide/carbon aerogel is a promising catalyst for water-splitting systems toward hydrogen evolution.
AB - The water-oxidizing complex or oxygen-evolving complex in plants, algae and cyanobacteria is an Mn4CaO5 cluster catalysing light-induced water oxidation. Herein we report that nano-sized Mn oxide/carbon aerogel is an active and low-density catalyst toward water oxidation. The composite was synthesized by a simple, low-cost procedure with different ratio of carbon aerogel to Mn oxide and characterized by scanning electron microscopy, energy-dispersive spectroscopy, high resolution transmission electron microscopy, X-ray diffraction, electronic spectroscopy, Fourier transform infrared spectroscopy, and atomic absorption spectroscopy. Then, the water-oxidizing activity of this composite was considered in the presence of cerium(IV) ammonium nitrate. The composites with a high ratio of Mn oxide to carbon aerogel are good Mn-based catalysts with turnover frequencies of ∼0.33 (mmol O2/(mol Mn·s)). In addition to the water-oxidizing activities of these composites under different conditions, their self-healing reaction in the presence of cerium(IV) ammonium nitrate was studied. We also compare the composite with graphene quantum dots/Mn oxide, which is not stable under these conditions. Using hydrogen to store sustainable energies is a promising strategy in the near future and our results show that nano-sized Mn oxide/carbon aerogel is a promising catalyst for water-splitting systems toward hydrogen evolution.
KW - Artificial photosynthesis
KW - Carbon aerogel
KW - Manganese oxide
KW - Nanotechnology
KW - Oxygen
KW - Self-healing
KW - Water oxidation
UR - http://www.scopus.com/inward/record.url?scp=84957855142&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84957855142&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2015.11.003
DO - 10.1016/j.ijhydene.2015.11.003
M3 - Article
AN - SCOPUS:84957855142
VL - 41
SP - 2466
EP - 2476
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 4
ER -