Artificial photosynthesis: a molecular approach to photo-induced water oxidation

2015 ◽  
Vol 87 (6) ◽  
pp. 583-599 ◽  
Author(s):  
Giuseppina La Ganga ◽  
Fausto Puntoriero
Keyword(s):  
Water Oxidation ◽  
Artificial Photosynthesis ◽  
Organic Ligands ◽  
Molecular Approach ◽  
Efficient System ◽  
Photosynthetic System ◽  
Different Types ◽  
Artificial Photosynthetic ◽  
Polypyridine Complexes ◽  
Molecular Catalysts

Abstract By the use of a molecular approach we performed photo-induced water oxidation by combining different photosensitizers and catalysts in order to obtain an efficient system that pave the way to the construction of an artificial photosynthetic system. Different types of molecular catalysts, such as ruthenium and vanadium polyoxometalates or cobalt core stabilized by different organic ligands were combined with ruthenium (II) polypyridine complexes of different nuclearity, mononuclear species like [Ru(bpy)3]2+ or a tetranuclear dendrimer.

scholarly journals Polynuclear Cobalt Complexes as Catalysts for Light-Driven Water Oxidation: A Review of Recent Advances

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 602 ◽  
Author(s):  
Dmytro Nesterov ◽  
Oksana Nesterova
Keyword(s):  
Water Oxidation ◽  
Catalytic Efficiency ◽  
Cobalt Complexes ◽  
Platinum Group Metal ◽  
Experimental Methods ◽  
Cobalt Ions ◽  
Recent Advances ◽  
Wide Range ◽  
Artificial Photosynthetic ◽  
Molecular Catalysts

Photochemical water oxidation, as a half-reaction of water splitting, represents a great challenge towards the construction of artificial photosynthetic systems. Complexes of first-row transition metals have attracted great attention in the last decade due to their pronounced catalytic efficiency in water oxidation, comparable to that exhibited by classical platinum-group metal complexes. Cobalt, being an abundant and relatively cheap metal, has rich coordination chemistry allowing construction of a wide range of polynuclear architectures for the catalytic purposes. This review covers recent advances in application of cobalt complexes as (pre)catalysts for water oxidation in the model catalytic system comprising [Ru(bpy)3]2+ as a photosensitizer and S2O82− as a sacrificial electron acceptor. The catalytic parameters are summarized and discussed in view of the structures of the catalysts. Special attention is paid to the degradation of molecular catalysts under catalytic conditions and the experimental methods and techniques used to control their degradation as well as the leaching of cobalt ions.

scholarly journals Near infrared light-driven water oxidation in a molecule-based artificial photosynthetic device using an upconversion nano-photosensitizer

2015 ◽  
Vol 51 (65) ◽  
pp. 13008-13011 ◽  
Author(s):  
Xiaomin Liu ◽  
Hung-Cheng Chen ◽  
Xianggui Kong ◽  
Youlin Zhang ◽  
Langping Tu ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Near Infrared ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Near Infrared Light ◽  
Photosynthetic System ◽  
Nir Light ◽  
Artificial Photosynthetic ◽  
Novel Concept

A NIR light driven nano-photosensitizer is reported as a novel concept in an artificial photosynthetic system that integrates upconversion nanoparticles with Pt(ii)-porphyrin.

scholarly journals Mechanisms of Photoisomerization and Water Oxidation Catalysis of Ruthenium(II) Aquo Complexes

2021 ◽  
Author(s):  
Yuta Tsubonouchi ◽  
Eman A. Mohamed ◽  
Zaki N. Zahran ◽  
Masayuki Yagi
Keyword(s):  
Physicochemical Properties ◽  
Water Oxidation ◽  
Recent Progress ◽  
Artificial Photosynthesis ◽  
Ruthenium Complexes ◽  
Oxidation Catalysis ◽  
Oxidation Catalysts ◽  
Water Oxidation Catalysis ◽  
Molecular Catalysts ◽  
Insight Into

Polypyridyl ruthenium(II) complexes have been widely researched as promising functional molecules. We have found unique photoisomerization reactions of polypyridyl ruthenium(II) aquo complexes. Recently we have attempted to provide insight into the mechanism of the photoisomerization of the complexes and distinguish between the distal−/proximal-isomers in their physicochemical properties and functions. Moreover, polypyridyl ruthenium(II) aquo complexes have been intensively studied as active water oxidation catalysts (WOCs) which are indispensable for artificial photosynthesis. The catalytic aspect and mechanism of water oxidation by the distal-/proximal-isomers of polypyridyl ruthenium(II) aquo complexes have been investigated to provide the guided thought to develop more efficient molecular catalysts for water oxidation. The recent progress on the photoisomerization and water oxidation of polypyridyl ruthenium(II) aquo complexes in our group are reviewed to understand the properties and functions of ruthenium complexes.

Panoramic insights into semi-artificial photosynthesis: origin, development, and future perspective

2022 ◽  
Author(s):  
Zhifeng Jiang ◽  
Kemeng Xiao ◽  
Jun Liang ◽  
Xinyu Wang ◽  
Tianfeng Hou ◽  
...  
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Artificial Photosynthesis ◽  
Solar Energy Conversion ◽  
Future Perspective ◽  
Photosynthetic System ◽  
Synthetic Materials ◽  
Artificial Photosynthetic

Semi-artificial photosynthetic system (SAPS) integrates the strengths of natural and artificial photosynthesis for solar energy conversion. Synthetic materials and biological components both play indispensable roles, where the former can be...

Integration of redox cocatalysts for artificial photosynthesis

2021 ◽  
Author(s):  
Bocheng Qiu ◽  
Mengmeng Du ◽  
Yingxin Ma ◽  
Qiahong Zhu ◽  
Mingyang Xing ◽  
...  
Keyword(s):  
Solar Energy ◽  
Artificial Photosynthesis ◽  
Solar Fuels ◽  
Photosynthetic System ◽  
Fuels And Chemicals ◽  
Potential Alternative ◽  
Artificial Photosynthetic

Solar fuels and chemicals production on photosynthetic devices by harnessing solar energy remain attractive in prospect owing to its potential alternative to fossil feedstocks, whereas such artificial photosynthetic system for...

Recent advances in synthesis of organometallic complexes of indium

2020 ◽  
Vol 40 (3) ◽  
pp. 107-151
Author(s):  
Hira Anwar ◽  
Rosenani A. Haque ◽  
Rahman Shah Zaib Saleem ◽  
Muhammad Adnan Iqbal
Keyword(s):  
Material Science ◽  
Thin Film Transistors ◽  
Heterocyclic Carbenes ◽  
Organometallic Complexes ◽  
Organic Ligands ◽  
Group 13 ◽  
Indium Complexes ◽  
Different Types ◽  
Stirring Time ◽  
Different Temperatures

AbstractThe indium complexes are being used in many applications like catalysis, optoelectronics, sensors, solar cells, biochemistry, medicine, infrared (IR) mirrors and thin-film transistors (TFTs). In organometallic complexes of indium, it forms different types of complexes with single, double, triple and tetra linkages by coordinating with numerous elements like C, N, O and S and also with some other elements like Se and Ru. So, the present study comprises all the possible ways to synthesize the indium complexes by reacting with different organic ligands; most of them are N-heterocyclic carbenes, amines, amides and phenols. The commonly used solvents for these syntheses are tetrahydrofuran, dichloromethane, toluene, benzene, dimethyl sulfoxide (DMSO) and water. According to the nature of the ligands, indium complexes were reported at different temperatures and stirring time. Because of their unique characteristics, the organometallic chemistry of group 13 metal indium complexes remains a subject of continuing interest in synthetic chemistry as well as material science.

Oxygen evolution from water oxidation on molecular catalysts confined in the nanocages of mesoporous silicas

2012 ◽  
Vol 5 (8) ◽  
pp. 8229 ◽  
Author(s):  
Bo Li ◽  
Fei Li ◽  
Shiyang Bai ◽  
Zhijun Wang ◽  
Licheng Sun ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Water Oxidation ◽  
Mesoporous Silicas ◽  
Molecular Catalysts
Sign in / Sign up

Export Citation Format

Share Document