|
1
|
Najafpour MM. From manganese complexes to nano-sized manganese oxides as water-oxidizing catalysts for artificial photosynthetic systems: Insights from the Zanjan team. CR CHIM 2017. [DOI: 10.1016/j.crci.2015.12.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 01/17/2023]
|
|
2
|
Taherzade D, Soleimannejad J. Application of ultrasound to the synthesis of a new nanostructured Mn(II) supramolecular compound: A precursor for γ-Mn2O3 nanoparticles. ULTRASONICS SONOCHEMISTRY 2016; 32:277-283. [PMID: 27150771 DOI: 10.1016/j.ultsonch.2016.03.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Academic Contribution Register] [Received: 02/13/2016] [Revised: 03/18/2016] [Accepted: 03/19/2016] [Indexed: 06/05/2023]
Abstract
A new nanostructured Mn(II) supramolecular compound [Mn(hpydcH2)2(H2O)4] (1) (hpydcH3=4-hydroxy-2,6-pyridinedicarboxylic acid) has been synthesized using a sonochemical process. The structure of compound 1 was determined by single crystal X-ray diffraction and it was revealed that each hpydcH2(-) anionic ligand has been coordinated to Mn(II) ion in a novel monodentate fashion leaving another functional carboxylic acid group intact. Compound 1 was also characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRPD), FT-IR spectroscopy and elemental analysis. Thermal stability of compound 1 was studied by thermal gravimetric (TG) analysis and compared to that of its crystalline analogue. Subsequently, the role of concentration of the initial reactants on the size of nanostructures of compound 1, has been investigated. Compound 1 was proved to be a precursor for γ-Mn2O3 nanoparticles.
Collapse
Affiliation(s)
- Dariush Taherzade
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
| | - Janet Soleimannejad
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran.
| |
Collapse
|
|
3
|
Hayashi T, Yamaguchi A, Hashimoto K, Nakamura R. Stability of organic compounds on the oxygen-evolving center of photosystem II and manganese oxide water oxidation catalysts. Chem Commun (Camb) 2016; 52:13760-13763. [DOI: 10.1039/c6cc07092b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 12/16/2022]
Abstract
Carboxyl groups, abundant residues around the Mn4cluster of photosystem II, stably facilitated electrochemical water oxidation by Mn oxides.
Collapse
Affiliation(s)
- Toru Hayashi
- Department of Applied Chemistry
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Akira Yamaguchi
- Biofunctional Catalyst Research Team
- RIKEN Center for Sustainable Resource Science (CSRS)
- Wako
- Japan
| | | | - Ryuhei Nakamura
- Biofunctional Catalyst Research Team
- RIKEN Center for Sustainable Resource Science (CSRS)
- Wako
- Japan
| |
Collapse
|
|
4
|
Najafpour MM, Abasi M, Tomo T, Allakhverdiev SI. Nanolayered manganese oxide/C(60) composite: a good water-oxidizing catalyst for artificial photosynthetic systems. Dalton Trans 2015; 43:12058-64. [PMID: 24984108 DOI: 10.1039/c4dt00599f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 01/24/2023]
Abstract
For the first time, we considered Mn oxide/C60 composites as water-oxidizing catalysts. The composites were synthesized by easy and simple procedures, and characterized by some methods. The water-oxidizing activities of these composites were also measured in the presence of cerium(iv) ammonium nitrate. We found that the nanolayered Mn oxide/C60 composites show promising activity toward water oxidation.
Collapse
Affiliation(s)
- Mohammad Mahdi Najafpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran.
| | | | | | | |
Collapse
|
|
5
|
Comparison of nano-sized Mn oxides with the Mn cluster of photosystem II as catalysts for water oxidation. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2015; 1847:294-306. [DOI: 10.1016/j.bbabio.2014.11.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Academic Contribution Register] [Received: 09/09/2014] [Revised: 11/12/2014] [Accepted: 11/18/2014] [Indexed: 11/20/2022]
|
|
7
|
Najafpour MM, Isaloo MA, Eaton-Rye JJ, Tomo T, Nishihara H, Satoh K, Carpentier R, Shen JR, Allakhverdiev SI. Water exchange in manganese-based water-oxidizing catalysts in photosynthetic systems: from the water-oxidizing complex in photosystem II to nano-sized manganese oxides. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2014; 1837:1395-410. [PMID: 24685431 DOI: 10.1016/j.bbabio.2014.03.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Academic Contribution Register] [Received: 12/06/2013] [Revised: 03/15/2014] [Accepted: 03/19/2014] [Indexed: 11/24/2022]
Abstract
The water-oxidizing complex (WOC), also known as the oxygen-evolving complex (OEC), of photosystem II in oxygenic photosynthetic organisms efficiently catalyzes water oxidation. It is, therefore, responsible for the presence of oxygen in the Earth's atmosphere. The WOC is a manganese-calcium (Mn₄CaO₅(H₂O)₄) cluster housed in a protein complex. In this review, we focus on water exchange chemistry of metal hydrates and discuss the mechanisms and factors affecting this chemical process. Further, water exchange rates for both the biological cofactor and synthetic manganese water splitting are discussed. The importance of fully unveiling the water exchange mechanism to understand the chemistry of water oxidation is also emphasized here. This article is part of a special issue entitled: photosynthesis research for sustainability: keys to produce clean energy.
Collapse
Affiliation(s)
- Mohammad Mahdi Najafpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran; Center of Climate Change and Global Warming, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran.
| | - Mohsen Abbasi Isaloo
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Julian J Eaton-Rye
- Department of Biochemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
| | - Tatsuya Tomo
- Department of Biology, Faculty of Science, Tokyo University of Science, Kagurazaka 1-3, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Hiroshi Nishihara
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kimiyuki Satoh
- Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan; Faculty of Science, Okayama University, Okayama 700-8530, Japan
| | - Robert Carpentier
- Department de Chimie-Biologie, Université du Quebec à Trois Rivières, 3351, Boulevard des Forges, C.P. 500, Quebec G9A 5H7, Canada
| | - Jian-Ren Shen
- Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan; Faculty of Science, Okayama University, Okayama 700-8530, Japan
| | - Suleyman I Allakhverdiev
- Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya Street 35, Moscow 127276, Russia; Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia.
| |
Collapse
|
|
8
|
Najafpour MM, Abasi M, Tomo T, Allakhverdiev SI. Mn oxide/nanodiamond composite: a new water-oxidizing catalyst for water oxidation. RSC Adv 2014. [DOI: 10.1039/c4ra06181k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 11/21/2022] Open
Abstract
Herein, we reported nanosized Mn oxide/nanodiamond composites as water-oxidizing compounds.
Collapse
Affiliation(s)
- Mohammad Mahdi Najafpour
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan, Iran
- Center of Climate Change and Global Warming
- Institute for Advanced Studies in Basic Sciences (IASBS)
| | - Mahnaz Abasi
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan, Iran
| | - Tatsuya Tomo
- Department of Biology
- Faculty of Science
- Tokyo University of Science
- Tokyo 162-8601, Japan
- PRESTO
| | - Suleyman I. Allakhverdiev
- Controlled Photobiosynthesis Laboratory
- Institute of Plant Physiology
- Russian Academy of Sciences
- Moscow 127276, Russia
- Institute of Basic Biological Problems
| |
Collapse
|