1
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Yang S, Liu X, Li S, Yuan W, Yang L, Wang T, Zheng H, Cao R, Zhang W. The mechanism of water oxidation using transition metal-based heterogeneous electrocatalysts. Chem Soc Rev 2024; 53:5593-5625. [PMID: 38646825 DOI: 10.1039/d3cs01031g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
The water oxidation reaction, a crucial process for solar energy conversion, has garnered significant research attention. Achieving efficient energy conversion requires the development of cost-effective and durable water oxidation catalysts. To design effective catalysts, it is essential to have a fundamental understanding of the reaction mechanisms. This review presents a comprehensive overview of recent advancements in the understanding of the mechanisms of water oxidation using transition metal-based heterogeneous electrocatalysts, including Mn, Fe, Co, Ni, and Cu-based catalysts. It highlights the catalytic mechanisms of different transition metals and emphasizes the importance of monitoring of key intermediates to explore the reaction pathway. In addition, advanced techniques for physical characterization of water oxidation intermediates are also introduced, for the purpose of providing information for establishing reliable methodologies in water oxidation research. The study of transition metal-based water oxidation electrocatalysts is instrumental in providing novel insights into understanding both natural and artificial energy conversion processes.
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Affiliation(s)
- Shujiao Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Xiaohan Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Sisi Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Wenjie Yuan
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Luna Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Ting Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Haoquan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
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2
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Liu Y, Yuan Y, Wang Y, Ngo HH, Wang J. Research and application of active species based on high-valent iron for the degradation of pollutants: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 924:171430. [PMID: 38458457 DOI: 10.1016/j.scitotenv.2024.171430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/10/2024]
Abstract
Fe(VI), as a new green treatment agent, has two indispensable processes in water treatment: coagulation and oxidation. Fe(VI) has a strong oxidation ability. The intermediate iron species (Fe(V) and Fe(IV)) and reactive radical species (H2O2, •OH, and O2•-) produced by decomposition and reduction reaction have strong oxidation ability, in addition, the hydrolyzed product formed in situ with core (γ-Fe2O3)-shell (γ-FeOOH) structure also has good coagulation effect. Because Fe(VI) is easy to decompose and challenging to preserve, it limits the application and sometimes significantly reduces the subsequent processing effect. How to make Fe(VI) more efficient use is a hot spot in current research. This article summarizes the distribution of active substances during the hydrolysis of Fe(VI), distinguish the differences mechanisms in the similar regulation methods, reviews the current preparation methods of Fe(VI), and finally reviews the applications of Fe(VI) in the field of environmental remediation.
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Affiliation(s)
- Yang Liu
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Material Science and Engineering, Tiangong University, Tianjin 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yang Yuan
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Material Science and Engineering, Tiangong University, Tianjin 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yue Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, New South Wales 2007, Australia.
| | - Jie Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Material Science and Engineering, Tiangong University, Tianjin 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China.
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3
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Li J, Cao J, Jiang M, An L, Zeng G, Mai J, Su P, Jing B, Feng M, Ao Z, Ma J, Yang T. Role of bipyridyl in enhancing ferrate oxidation toward micropollutants. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:133982. [PMID: 38460256 DOI: 10.1016/j.jhazmat.2024.133982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 02/29/2024] [Accepted: 03/05/2024] [Indexed: 03/11/2024]
Abstract
Enhancing Fe(VI) oxidation ability by generating high-valent iron-oxo species (Fe(IV)/Fe(V)) has attracted continuous interest. This work for the first time reports the efficient activation of Fe(VI) by a well-known aza-aromatic chelating agent 2,2'-bipyridyl (BPY) for micropollutant degradation. The presence of BPY increased the degradation constants of six model compounds (i.e., sulfamethoxazole (SMX), diclofenac (DCF), atenolol (ATL), flumequine (FLU), 4-chlorophenol (4-CP), carbamazepine (CBZ)) with Fe(VI) by 2 - 6 folds compared to those by Fe(VI) alone at pH 8.0. Lines of evidence indicated the dominant role of Fe(IV)/Fe(V) intermediates. Density functional theory calculations suggested that the binding of Fe(III) to one or two BPY molecules initiated the oxidation of Fe(III) to Fe(IV) by Fe(VI), while Fe(VI) was reduced to Fe(V). The increased exposures of Fe(IV)/Fe(V) were experimentally verified by the pre-generated Fe(III) complex with BPY and using methyl phenyl sulfoxide as the probe compound. The presence of chloride and bicarbonate slightly affected model compound degradation by Fe(VI) in the presence of BPY, while a negative effect of humic acid was obtained under the same conditions. This work demonstrates the potential of N-donor heterocyclic ligand to activate Fe(VI) for micropollutant degradation, which is instructive for the Fe(VI)-based oxidation processes.
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Affiliation(s)
- Juan Li
- Advanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal University, Zhu Hai 519087, PR China
| | - Jiachun Cao
- Advanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal University, Zhu Hai 519087, PR China; Institute of Environmental Health and Pollution Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, PR China
| | - Maoju Jiang
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production,School of Environmental and Chemical Engineering, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Linqian An
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production,School of Environmental and Chemical Engineering, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Ge Zeng
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production,School of Environmental and Chemical Engineering, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Jiamin Mai
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production,School of Environmental and Chemical Engineering, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Peng Su
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production,School of Environmental and Chemical Engineering, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Binghua Jing
- Advanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal University, Zhu Hai 519087, PR China
| | - Mingbao Feng
- College of the Environment & Ecology, Xiamen University, Xiamen 361100, PR China
| | - Zhimin Ao
- Advanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal University, Zhu Hai 519087, PR China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Tao Yang
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production,School of Environmental and Chemical Engineering, Wuyi University, Jiangmen 529020, Guangdong Province, China; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, Guangdong Province, PR China.
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4
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Keilwerth M, Mao W, Malischewski M, Jannuzzi SAV, Breitwieser K, Heinemann FW, Scheurer A, DeBeer S, Munz D, Bill E, Meyer K. The synthesis and characterization of an iron(VII) nitrido complex. Nat Chem 2024; 16:514-520. [PMID: 38291260 PMCID: PMC10997499 DOI: 10.1038/s41557-023-01418-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 12/08/2023] [Indexed: 02/01/2024]
Abstract
Complexes of iron in high oxidation states are captivating research subjects due to their pivotal role as active intermediates in numerous catalytic processes. Structural and spectroscopic studies of well-defined model complexes often provide evidence of these intermediates. In addition to the fundamental molecular and electronic structure insights gained by these complexes, their reactivity also affects our understanding of catalytic reaction mechanisms for small molecule and bond-activation chemistry. Here, we report the synthesis, structural and spectroscopic characterization of a stable, octahedral Fe(VI) nitrido complex and an authenticated, unique Fe(VII) species, prepared by one-electron oxidation. The super-oxidized Fe(VII) nitride rearranges to an Fe(V) imide through an intramolecular amination mechanism and ligand exchange, which is characterized spectroscopically and computationally. This enables combined reactivity and stability studies on a single molecular system of a rare high-valent complex redox pair. Quantum chemical calculations complement the spectroscopic parameters and provide evidence for a diamagnetic (S = 0) d 2 Fe(VI) and a genuine S = 1/2, d 1 Fe(VII) configuration of these super-oxidized nitrido complexes.
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Affiliation(s)
- Martin Keilwerth
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Inorganic Chemistry, Erlangen, Germany
| | - Weiqing Mao
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Inorganic Chemistry, Erlangen, Germany
| | - Moritz Malischewski
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Inorganic Chemistry, Berlin, Germany
| | - Sergio A V Jannuzzi
- Max Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr, Germany
| | - Kevin Breitwieser
- Saarland University, Inorganic Chemistry, Coordination Chemistry, Saarbrücken, Germany
| | - Frank W Heinemann
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Inorganic Chemistry, Erlangen, Germany
| | - Andreas Scheurer
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Inorganic Chemistry, Erlangen, Germany
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr, Germany.
| | - Dominik Munz
- Saarland University, Inorganic Chemistry, Coordination Chemistry, Saarbrücken, Germany.
| | - Eckhard Bill
- Max Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr, Germany
| | - Karsten Meyer
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Inorganic Chemistry, Erlangen, Germany.
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5
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Lionetti D, Suseno S, Shiau AA, de Ruiter G, Agapie T. Redox Processes Involving Oxygen: The Surprising Influence of Redox-Inactive Lewis Acids. JACS AU 2024; 4:344-368. [PMID: 38425928 PMCID: PMC10900226 DOI: 10.1021/jacsau.3c00675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 03/02/2024]
Abstract
Metalloenzymes with heteromultimetallic active sites perform chemical reactions that control several biogeochemical cycles. Transformations catalyzed by such enzymes include dioxygen generation and reduction, dinitrogen reduction, and carbon dioxide reduction-instrumental transformations for progress in the context of artificial photosynthesis and sustainable fertilizer production. While the roles of the respective metals are of interest in all these enzymatic transformations, they share a common factor in the transfer of one or multiple redox equivalents. In light of this feature, it is surprising to find that incorporation of redox-inactive metals into the active site of such an enzyme is critical to its function. To illustrate, the presence of a redox-inactive Ca2+ center is crucial in the Oxygen Evolving Complex, and yet particularly intriguing given that the transformation catalyzed by this cluster is a redox process involving four electrons. Therefore, the effects of redox inactive metals on redox processes-electron transfer, oxygen- and hydrogen-atom transfer, and O-O bond cleavage and formation reactions-mediated by transition metals have been studied extensively. Significant effects of redox inactive metals have been observed on these redox transformations; linear free energy correlations between Lewis acidity and the redox properties of synthetic model complexes are observed for several reactions. In this Perspective, these effects and their relevance to multielectron processes will be discussed.
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Affiliation(s)
| | - Sandy Suseno
- Division of Chemistry and
Chemical Engineering, California Institute
of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California 91125, United States
| | - Angela A. Shiau
- Division of Chemistry and
Chemical Engineering, California Institute
of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California 91125, United States
| | - Graham de Ruiter
- Division of Chemistry and
Chemical Engineering, California Institute
of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California 91125, United States
| | - Theodor Agapie
- Division of Chemistry and
Chemical Engineering, California Institute
of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California 91125, United States
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6
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Deng Y, Guan X. Unlocking the potential of ferrate(VI) in water treatment: Toward one-step multifunctional solutions. JOURNAL OF HAZARDOUS MATERIALS 2024; 464:132920. [PMID: 37988863 DOI: 10.1016/j.jhazmat.2023.132920] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/26/2023] [Accepted: 11/01/2023] [Indexed: 11/23/2023]
Abstract
Ferrate(VI), though well-acknowledged for its multiple treatment functions, has traditionally found application in an auxiliary treatment of conventional water treatment trains, primarily targeting specific contaminants. However, the reactor configurations and system operations developed from this traditional approach are not optimally suited for harnessing its full multifunctionality. In contrast, an alternative process integration approach, such as process intensification, can allow for the tailored development of modular, multifunctional ferrate(VI) reactors capable of achieving various treatment objectives within a single unit. This perspective article critically analyzes and compares the two distinct development approaches for ferrate(VI) technology in water treatment. We argue that the process integration pathway represents a promising approach, given that it facilitates the reactor design to accommodate different ferrate(VI)-driven treatment processes and their interactions, while potentially accomplishing enhanced treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint. The resulting system intensification and adaptability have the potential to drive technological innovation and revolution in water treatment for achieving water security.
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Affiliation(s)
- Yang Deng
- Department of Earth and Environmental Studies, Montclair State University, Montclair, NJ 07043, United States.
| | - Xiaohong Guan
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, PR China
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7
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Labaška M, Gál M, Mackuľak T. Degradation of Chemical Warfare Agent Nitrogen Mustard Using Ferrate (VI). TOXICS 2023; 11:559. [PMID: 37505525 PMCID: PMC10384491 DOI: 10.3390/toxics11070559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/10/2023] [Accepted: 06/17/2023] [Indexed: 07/29/2023]
Abstract
Chemical warfare agents (CWAs) are one of the most toxic compounds. Degradation of CWAs using decontamination agents is one of the few ways to protect human health against the harmful effects of CWAs. A ferrate (VI)-based potential chemical warfare agent decontaminant was studied for the degradation of persistent nitrogen mustard (tris(2-chloroethyl)amine, HN3). By optimizing the reaction conditions, the complete degradation of HN3 was achieved in 4 min. The degradation products contained mostly reduced Fe species, which confirmed the environmental friendliness of the proposed decontamination solution.
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Affiliation(s)
- Miroslav Labaška
- Department of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Miroslav Gál
- Department of Inorganic Technology, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Tomáš Mackuľak
- Department of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovakia
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8
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Feng C, She X, Xiao Y, Li Y. Direct Detection of Fe VI Water Oxidation Intermediates in an Aqueous Solution. Angew Chem Int Ed Engl 2023; 62:e202218738. [PMID: 36583473 DOI: 10.1002/anie.202218738] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 12/27/2022] [Accepted: 12/30/2022] [Indexed: 12/31/2022]
Abstract
In situ detection of highly-oxidized metal intermediates is the key to identifying the active center of an oxygen evolution reaction (OER) catalyst, but it remains challenging for NiFe-based catalysts in an aqueous solution under working conditions. Here, by utilizing the dynamic stability of the FeVI O4 2- intermediates in a self-healing water oxidation cycle of NiFe-based catalyst, the highly-oxidized FeVI intermediates leached into the electrolyte are directly detected by simple spectroelectrochemistry. Our results provide direct evidence that Fe is the active center in NiFe-based OER catalysts. Furthermore, it is revealed that the incorporation of Co into NiFe-based catalyst facilitates the formation of FeVI active species, thus enhancing the OER activity of NiCoFe-based catalyst. The insights into the mechanisms for the sustainable generation of FeVI active species in these NiFe-based catalysts lay the foundation for the design of more efficient and stable OER catalysts.
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Affiliation(s)
- Chao Feng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Xianghua She
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Yequan Xiao
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Yanbo Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
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9
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Antolini C, Spellman CD, Otolski CJ, Doumy G, March AM, Walko DA, Liu C, Zhang X, Young BT, Goodwill JE, Hayes D. Photochemical and Photophysical Dynamics of the Aqueous Ferrate(VI) Ion. J Am Chem Soc 2022; 144:22514-22527. [PMID: 36454056 DOI: 10.1021/jacs.2c08048] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Ferrate(VI) has the potential to play a key role in future water supplies. Its salts have been suggested as "green" alternatives to current advanced oxidation and disinfection methods in water treatment, especially when combined with ultraviolet light to stimulate generation of highly oxidizing Fe(V) and Fe(IV) species. However, the nature of these intermediates, the mechanisms by which they form, and their roles in downstream oxidation reactions remain unclear. Here, we use a combination of optical and X-ray transient absorption spectroscopies to study the formation, interconversion, and relaxation of several excited-state and metastable high-valent iron species following excitation of aqueous potassium ferrate(VI) by ultraviolet and visible light. Branching from the initially populated ligand-to-metal charge transfer state into independent photophysical and photochemical pathways occurs within tens of picoseconds, with the quantum yield for the generation of reactive Fe(V) species determined by relative rates of the competing intersystem crossing and reverse electron transfer processes. Relaxation of the metal-centered states then occurs within 4 ns, while the formation of metastable Fe(V) species occurs in several steps with time constants of 250 ps and 300 ns. Results here improve the mechanistic understanding of the formation and fate of Fe(V) and Fe(IV), which will accelerate the development of novel advanced oxidation processes for water treatment applications.
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Affiliation(s)
- Cali Antolini
- Department of Chemistry, University of Rhode Island, 45 Upper College Road, Kingston, Rhode Island 02881, United States
| | - Charles D Spellman
- Department of Civil and Environmental Engineering, University of Rhode Island, 45 Upper College Road, Kingston, Rhode Island 02881, United States
| | - Christopher J Otolski
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Gilles Doumy
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Anne Marie March
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Donald A Walko
- X-ray Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Cunming Liu
- X-ray Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Xiaoyi Zhang
- X-ray Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Benjamin T Young
- Department of Physical Sciences, Rhode Island College, 600 Mt Pleasant Avenue, Providence, Rhode Island 02908, United States
| | - Joseph E Goodwill
- Department of Civil and Environmental Engineering, University of Rhode Island, 45 Upper College Road, Kingston, Rhode Island 02881, United States
| | - Dugan Hayes
- Department of Chemistry, University of Rhode Island, 45 Upper College Road, Kingston, Rhode Island 02881, United States
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10
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Yu J, Jiao R, Sun H, Xu H, He Y, Wang D. Removal of microorganic pollutants in aquatic environment: The utilization of Fe(VI). JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 316:115328. [PMID: 35658263 DOI: 10.1016/j.jenvman.2022.115328] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 05/09/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Microorganic pollutants (MOPs) in aquatic environment with low levels but high toxicity are harmful to ecosystem and human health. Fe(VI) has a dual-functional role in oxidation and coagulation, and can effectively remove MOPs, heavy metal, phosphate, particulates and colloids. Moreover, Fe(VI) can combine with traditional coagulants, or use as a pretreatment for membrane treatment because of its characters to generate nanoparticles by degradation in water. Based on the relevant toxicity experiments, Fe(VI) had been proved to be safe for the efficient treatment of MOPs. For better utilization of Fe(VI), its oxidation and coagulation mechanisms are summarized, and the knowledge about the control parameters, utilization methods, and toxicity effect for Fe(VI) application are reviewed in this paper. pH, different valences of iron, environmental substances, and other parameters are summarized in this study to clarify the important factors in the treatment of MOPs with Fe(VI). In the future study, aiming at cost reduction in Fe(VI) preparation, transportation and storage, enhancement of oxidation in the intermediate state, and better understanding the mechanism between interface and Fe(VI) oxidation will help promote the application of Fe(VI) in the removal of MOPs. This study offers guidelines for the application and development of Fe(VI) for the treatment of MOPs in aquatic environment.
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Affiliation(s)
- Junjie Yu
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ruyuan Jiao
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Yangtze River Delta Branch, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Yiwu City, Zhejiang Province, 322000, China.
| | - Hongyan Sun
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Hui Xu
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Yi He
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Dongsheng Wang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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11
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Sun Z, Lin L, He J, Ding D, Wang T, Li J, Li M, Liu Y, Li Y, Yuan M, Huang B, Li H, Sun G. Regulating the Spin State of Fe III Enhances the Magnetic Effect of the Molecular Catalysis Mechanism. J Am Chem Soc 2022; 144:8204-8213. [PMID: 35471968 DOI: 10.1021/jacs.2c01153] [Citation(s) in RCA: 59] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Aqueous-phase oxygen evolution reaction (OER) is the bottleneck of water splitting. The formation of the O-O bond involves the generation of paramagnetic oxygen molecules from the diamagnetic hydroxides. The spin configurations might play an important role in aqueous-phase molecular electrocatalysis. However, spintronic electrocatalysis is almost an uncultivated land for the exploration of the oxygen molecular catalysis process. Herein, we present a novel magnetic FeIII site spin-splitting strategy, wherein the electronic structure and spin states of the FeIII sites are effectively induced and optimized by the Jahn-Teller effect of Cu2+. The theoretical calculations and operando attenuated total reflectance-infrared Fourier transform infrared (ATR FT-IR) reveal the facilitation for the O-O bond formation, which accelerates the production of O2 from OH- and improves the OER activity. The Cu1-Ni6Fe2-LDH catalyst exhibits a low overpotential of 210 mV at 10 mA cm-2 and a low Tafel slope (33.7 mV dec-1), better than those of the initial Cu0-Ni6Fe2-LDHs (278 mV, 101.6 mV dec-1). With the Cu2+ regulation, we have realized the transformation of NiFe-LDHs from ferrimagnets to ferromagnets and showcase that the OER performance of Cu-NiFe-LDHs significantly increases compared with that of NiFe-LDHs under the effect of a magnetic field for the first time. The magnetic-field-assisted Cu1-Ni6Fe2-LDHs provide an ultralow overpotential of 180 mV at 10 mA cm-2, which is currently one of the best OER performances. The combination of the magnetic field and spin configuration provides new principles for the development of high-performance catalysts and understandings of the catalytic mechanism from the spintronic level.
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Affiliation(s)
- Zemin Sun
- Center for Advanced Materials Research, Beijing Normal University, Zhuhai 519087, China.,Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Liu Lin
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jinlu He
- School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
| | - Dajie Ding
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Tongyue Wang
- Center for Advanced Materials Research, Beijing Normal University, Zhuhai 519087, China
| | - Jie Li
- Center for Advanced Materials Research, Beijing Normal University, Zhuhai 519087, China
| | - Mingxuan Li
- Center for Advanced Materials Research, Beijing Normal University, Zhuhai 519087, China
| | - Yicheng Liu
- Center for Advanced Materials Research, Beijing Normal University, Zhuhai 519087, China
| | - Yayin Li
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Mengwei Yuan
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Binbin Huang
- Center for Advanced Materials Research, Beijing Normal University, Zhuhai 519087, China
| | - Huifeng Li
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Genban Sun
- Center for Advanced Materials Research, Beijing Normal University, Zhuhai 519087, China.,Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
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12
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Sharma VK, Feng M, Dionysiou DD, Zhou HC, Jinadatha C, Manoli K, Smith MF, Luque R, Ma X, Huang CH. Reactive High-Valent Iron Intermediates in Enhancing Treatment of Water by Ferrate. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:30-47. [PMID: 34918915 DOI: 10.1021/acs.est.1c04616] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Efforts are being made to tune the reactivity of the tetraoxy anion of iron in the +6 oxidation state (FeVIO42-), commonly called ferrate, to further enhance its applications in various environmental fields. This review critically examines the strategies to generate highly reactive high-valent iron intermediates, FeVO43- (FeV) and FeIVO44- or FeIVO32- (FeIV) species, from FeVIO42-, for the treatment of polluted water with greater efficiency. Approaches to produce FeV and FeIV species from FeVIO42- include additions of acid (e.g., HCl), metal ions (e.g., Fe(III)), and reductants (R). Details on applying various inorganic reductants (R) to generate FeV and FeIV from FeVIO42- via initial single electron-transfer (SET) and oxygen-atom transfer (OAT) to oxidize recalcitrant pollutants are presented. The common constituents of urine (e.g., carbonate, ammonia, and creatinine) and different solids (e.g., silica and hydrochar) were found to accelerate the oxidation of pharmaceuticals by FeVIO42-, with potential mechanisms provided. The challenges of providing direct evidence of the formation of FeV/FeIV species are discussed. Kinetic modeling and density functional theory (DFT) calculations provide opportunities to distinguish between the two intermediates (i.e., FeIV and FeV) in order to enhance oxidation reactions utilizing FeVIO42-. Further mechanistic elucidation of activated ferrate systems is vital to achieve high efficiency in oxidizing emerging pollutants in various aqueous streams.
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Affiliation(s)
- Virender K Sharma
- Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, College Station, Texas 77843, United States
| | - Mingbao Feng
- College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering (DChEE), 705 Engineering Research Center, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Hong-Cai Zhou
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, United States
| | - Chetan Jinadatha
- Central Texas Veterans Health Care System, Temple, Texas 76504-7451, United States
- College of Medicine, Texas A&M University, College Station, Texas 77842-3012, United States
| | - Kyriakos Manoli
- Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, College Station, Texas 77843, United States
| | - Mallory F Smith
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, United States
| | - Rafael Luque
- Departamento de Quimica Organica, Facultad de Ciencias, Universidad de Cordoba, Campus de Rabanales, Edificio Marie Curie (C_3), Ctra Nnal IV-A, Km 396, E14014 Cordoba, Spain
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho Maklaya str., 117198 Moscow, Russian Federation
| | - Xingmao Ma
- Zachery Department of Civil and Environmental Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Ching-Hua Huang
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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13
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Cheung PC, Williams DR, Barrett J, Barker J, Kirk DW. On the Origins of Some Spectroscopic Properties of "Purple Iron" (the Tetraoxoferrate(VI) Ion) and Its Pourbaix Safe-Space. Molecules 2021; 26:molecules26175266. [PMID: 34500697 PMCID: PMC8434183 DOI: 10.3390/molecules26175266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 07/13/2021] [Accepted: 08/16/2021] [Indexed: 11/24/2022] Open
Abstract
In this work, the authors attempt to interpret the visible, infrared and Raman spectra of ferrate(VI) by means of theoretical physical-inorganic chemistry and historical highlights in this field of interest. In addition, the sacrificial decomposition of ferrate(VI) during water treatment will also be discussed together with a brief mention of how Rayleigh scattering caused by the decomposition of FeVIO42− may render absorbance readings erroneous. This work is not a compendium of all the instrumental methods of analysis which have been deployed to identify ferrate(VI) or to study its plethora of reactions, but mention will be made of the relevant techniques (e.g., Mössbauer Spectroscopy amongst others) which support and advance this overall discourse at appropriate junctures, without undue elaboration on the foundational physics of these techniques.
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Affiliation(s)
- Philip C.W. Cheung
- Department of Chemical Engineering, Imperial College, London SW7 2AZ, UK;
- Correspondence:
| | - Daryl R. Williams
- Department of Chemical Engineering, Imperial College, London SW7 2AZ, UK;
| | - Jack Barrett
- Department of Chemistry, King’s College, University of London, London WC2R 2LS, UK;
| | - James Barker
- School of Life Sciences, Pharmacy and Chemistry, Kingston University, Kingston-upon-Thames KT1 2EE, UK;
| | - Donald W. Kirk
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada;
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14
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Yu H, Tian Y, Wang S, Ke X, Li R, Kang X. Ferrate(VI) Oxidation Mechanism of Substituted Anilines: A Density Functional Theory Investigation. ACS OMEGA 2021; 6:14317-14326. [PMID: 34124455 PMCID: PMC8190916 DOI: 10.1021/acsomega.1c01134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/12/2021] [Indexed: 06/12/2023]
Abstract
Ferrate(VI) (Fe(VI)) is a promising oxidant coagulant and disinfectant for the degradation of organic micropollutants. However, it is hard to elucidate the detailed oxidation mechanism through the current experimental approaches. Substituted anilines (SANs) are important chemical compounds that are widely used in many industries. This paper presents the use of density functional theory (DFT) to understand the oxidation mechanism of SANs by Fe(VI) and the effect of substituents. The calculation results revealed that the primary oxidations of SANs follow the hydrogen atom transfer (HAT) mechanism. Interestingly, the hydroxyl oxygen of HFeO4 - is more reactive than the carbonyl oxygen when reacting with SANs. The formation of the SAN radical is crucial, and all of the products are formed from it. Azobenzene is more favorable to generate the above products. In addition, the obtained results indicate that this kind of substituent has a much greater influence on the reaction rather than the position. Thus, the present study provides a valuable insight into the transformation pathways of SANs in the Fe(VI) oxidation process and the effects of the substituent on oxidation. These results will advance the understanding of Fe(VI) involved in wastewater treatment.
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Affiliation(s)
- Hang Yu
- Liaoning
Key Laboratory of Clean Energy and College of Energy and Environment, Shenyang Aerospace University, Shenyang, Liao Ning 110136, China
| | - Yu Tian
- Liaoning
Key Laboratory of Clean Energy and College of Energy and Environment, Shenyang Aerospace University, Shenyang, Liao Ning 110136, China
| | - Shuyue Wang
- Liaoning
Key Laboratory of Clean Energy and College of Energy and Environment, Shenyang Aerospace University, Shenyang, Liao Ning 110136, China
| | - Xin Ke
- Liaoning
Key Laboratory of Clean Energy and College of Energy and Environment, Shenyang Aerospace University, Shenyang, Liao Ning 110136, China
| | - Rundong Li
- Liaoning
Key Laboratory of Clean Energy and College of Energy and Environment, Shenyang Aerospace University, Shenyang, Liao Ning 110136, China
| | - Xiaohui Kang
- College
of Pharmacy, Dalian Medical University, Dalian 116044, China
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15
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Zhu J, Yu F, Meng J, Shao B, Dong H, Chu W, Cao T, Wei G, Wang H, Guan X. Overlooked Role of Fe(IV) and Fe(V) in Organic Contaminant Oxidation by Fe(VI). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:9702-9710. [PMID: 32644801 DOI: 10.1021/acs.est.0c03212] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fe(VI) has received increasing attention since it can decompose a wide range of trace organic contaminants (TrOCs) in water treatment. However, the role of short-lived Fe(IV) and Fe(V) in TrOC decomposition by Fe(VI) has been overlooked. Using methyl phenyl sulfoxide (PMSO), carbamazepine, and caffeine as probe TrOCs, we observed that the apparent second-order rate constants (kapp) between TrOCs and Fe(VI) determined with the initial kinetics data were strongly dependent on the initial molar ratios of TrOCs to Fe(VI). Furthermore, the kapp value increases gradually as the reaction proceeds. Several lines of evidence suggested that these phenomena were ascribed to the accumulation of Fe(IV) and Fe(V) arising from Fe(VI) decay. Kinetic models were built and employed to simulate the kinetics of Fe(VI) self-decay and the kinetics of PMSO degradation by Fe(VI). The modeling results revealed that PMSO was mainly degraded by Fe(IV) and Fe(V) rather than by Fe(VI) per se and Fe(V) played a dominant role, which was also supported by the density functional theory calculation results. Given that Fe(IV) and Fe(V) have much greater oxidizing reactivity than Fe(VI), this work urges the development of Fe(V)/Fe(IV)-based oxidation technology for efficient degradation of TrOCs.
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Affiliation(s)
- Jiahui Zhu
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P. R. China
| | - Fulu Yu
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Jiaoran Meng
- Shanghai Institute of Measurement and Testing Technology, Shanghai 200233, P. R. China
| | - Binbin Shao
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P. R. China
| | - Hongyu Dong
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P. R. China
| | - Wenhai Chu
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P. R. China
| | - Tongcheng Cao
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Guangfeng Wei
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Hejia Wang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Xiaohong Guan
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P. R. China
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16
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Yan X, Sun J, Kenjiahan A, Dai X, Ni BJ, Yuan Z. Rapid and strong biocidal effect of ferrate on sulfidogenic and methanogenic sewer biofilms. WATER RESEARCH 2020; 169:115208. [PMID: 31670088 DOI: 10.1016/j.watres.2019.115208] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 09/22/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
For the control of sulfide and methane in sewers, it is favorable to reduce their production rather than to remove them after generation. In this study, we revealed rapid and strong biocidal effect of ferrate (Fe(VI)) on sulfidogenic and methanogenic sewer biofilms, leading to control of sulfide and methane production in sewer. The inactivation of the microorganisms in sewer biofilms by Fe(VI) could be accomplished within 15 min for a single dosing event and the biocidal effect could be enhanced by applying pulse dosing strategy. The microbiological analysis showed that the key functional genes involved in sulfide and methane production, i.e. dsrA and mcrA, in the viable cells after Fe(VI) dosing were decreased substantially by 84.2% and 86.6%, respectively. Significant drops were also observed in the relative abundances of viable sulfide reducing bacteria (SRB) and methanogenic archaea (MA). The direct dosing of Fe(VI) into a sewer reactor led to instant and complete suppression of sulfidogenic and methanogenic activities, and the recovery of the activities resembled the regrowth of residual SRB and MA. The results of this study suggested the feasibility for developing an efficient and cost-effective sulfide and methane control strategy using Fe(VI).
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Affiliation(s)
- Xiaofang Yan
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Jing Sun
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China.
| | - Ahezhuoli Kenjiahan
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Xiaohu Dai
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China
| | - Bing-Jie Ni
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China.
| | - Zhiguo Yuan
- Advanced Water Management Centre (AWMC), The University of Queensland, St. Lucia, QLD, 4072, Australia
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17
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Zhou Y, Zhang ZY, Huang X, Li J, Li T. Versatile Functionalization of Carbon Nanomaterials by Ferrate(VI). NANO-MICRO LETTERS 2020; 12:32. [PMID: 34138081 PMCID: PMC7770691 DOI: 10.1007/s40820-019-0353-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 12/01/2019] [Indexed: 05/04/2023]
Abstract
As a high-valent iron compound with Fe in the highest accessible oxidation state, ferrate(VI) brings unique opportunities for a number of areas where chemical oxidation is essential. Recently, it is emerging as a novel oxidizing agent for materials chemistry, especially for the oxidation of carbon materials. However, the reported reactivity in liquid phase (H2SO4 medium) is confusing, which ranges from aggressive to moderate, and even incompetent. Meanwhile, the solid-state reactivity underlying the "dry" chemistry of ferrate(VI) remains poorly understood. Herein, we scrutinize the reactivity of K2FeO4 using fullerene C60 and various nanocarbons as substrates. The results unravel a modest reactivity in liquid phase that only oxidizes the active defects on carbon surface and a powerful oxidizing ability in solid state that can open the inert C=C bonds in carbon lattice. We also discuss respective benefit and limitation of the wet and dry approaches. Our work provides a rational understanding on the oxidizing ability of ferrate(VI) and can guide its application in functionalization/transformation of carbons and also other kinds of materials.
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Affiliation(s)
- Ying Zhou
- School of Chemistry and Chemical Engineering, Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Zhao-Yang Zhang
- School of Chemistry and Chemical Engineering, Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
| | - Xianhui Huang
- School of Chemistry and Chemical Engineering, Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Jiantong Li
- School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Electrum 229, 16440, Kista, Sweden
| | - Tao Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
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18
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Zhao C, Gu W, Wang C, Sun S, Zhou H, Ran G, Song Q. Potassium Ferrate(VI) as a Highly Efficient and Environmentally Friendly Chemiluminescence Reagent in Acidic Solution. Anal Chem 2019; 91:12255-12259. [PMID: 31394898 DOI: 10.1021/acs.analchem.9b02263] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein we report that the reactions of potassium ferrate (VI) with a number of reductants can produce strong chemiluminescence (CL) in acidic aqueous solution. The CL Spectra were registered and compared with the classical KMnO4 and NaClO-H2O2 CL systems. The characteristic emission peaks at 1268 and 1050 nm were observed, which are consistent to the spectrum obtained from the NaClO-H2O2 system. Additional emission bands at 680 nm further confirmed the formation of singlet oxygen dimers. The high CL intensity and the chemically green nature of K2FeO4, prompt us to further develop it as a novel CL reagent. Sensitive response and wide calibration ranges were obtained for dopamine, ascorbic acid, and ethanol. The linear range for the determination of three analytes were 50 nM to 50 μM for dopamine (LOD: 20 nM), 5.0 μM to 1.0 mM for ascorbic acid (LOD: 2.21 μM), and 0.5 μM to 1.0 mM for ethanol (LOD: 0.30 μM). Thus, K2FeO4 has a great potential for the postcolumn detection of those UV featureless compounds.
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Affiliation(s)
- Chenkai Zhao
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering , Jiangnan University , Wuxi 214122 , People's Republic of China
| | - Wenxiu Gu
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering , Jiangnan University , Wuxi 214122 , People's Republic of China
| | - Chan Wang
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering , Jiangnan University , Wuxi 214122 , People's Republic of China
| | - Shuquan Sun
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering , Jiangnan University , Wuxi 214122 , People's Republic of China
| | - Haifeng Zhou
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering , Jiangnan University , Wuxi 214122 , People's Republic of China
| | - Guoxia Ran
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering , Jiangnan University , Wuxi 214122 , People's Republic of China
| | - Qijun Song
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering , Jiangnan University , Wuxi 214122 , People's Republic of China
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19
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Reed CJ, Agapie T. A Terminal Fe III-Oxo in a Tetranuclear Cluster: Effects of Distal Metal Centers on Structure and Reactivity. J Am Chem Soc 2019; 141:9479-9484. [PMID: 31083986 DOI: 10.1021/jacs.9b03157] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Tetranuclear Fe clusters have been synthesized bearing a terminal FeIII-oxo center stabilized by hydrogen-bonding interactions from pendant ( tert-butylamino)pyrazolate ligands. This motif was supported in multiple Fe oxidation states, ranging from [FeII2FeIII2] to [FeIII4]; two oxidation states were structurally characterized by single-crystal X-ray diffraction. The reactivity of the FeIII-oxo center in proton-coupled electron transfer with X-H (X = C, O) bonds of various strengths was studied in conjunction with analysis of thermodynamic square schemes of the cluster oxidation states. These results demonstrate the important role of distal metal centers in modulating the reactivity of a terminal metal-oxo.
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Affiliation(s)
- Christopher J Reed
- Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , California 91125 , United States
| | - Theodor Agapie
- Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , California 91125 , United States
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20
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Liu Y, Lau TC. Activation of Metal Oxo and Nitrido Complexes by Lewis Acids. J Am Chem Soc 2019; 141:3755-3766. [DOI: 10.1021/jacs.8b13100] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Yingying Liu
- Department of Chemistry and Institute of Molecular Functional Materials, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong 999077, China
| | - Tai-Chu Lau
- Department of Chemistry and Institute of Molecular Functional Materials, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong 999077, China
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21
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Chen G, Lam WWY, Lo P, Man W, Chen L, Lau K, Lau T. Mechanism of Water Oxidation by Ferrate(VI) at pH 7–9. Chemistry 2018; 24:18735-18742. [DOI: 10.1002/chem.201803757] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Gui Chen
- School of Environment and Civil EngineeringDongguan University of Technology Guangdong 523808 P.R. China
| | - William W. Y. Lam
- Department of Chemistry and Institute of Molecular Functional MaterialsCity University of Hong Kong Tat Chee Avenue Hong Kong P.R. China
- Department of Food and Health SciencesTechnological and Higher Education Institute of Hong Kong Tsing Yi Road, New Territories Hong Kong P.R. China
| | - Po‐Kam Lo
- Department of Chemistry and Institute of Molecular Functional MaterialsCity University of Hong Kong Tat Chee Avenue Hong Kong P.R. China
| | - Wai‐Lun Man
- Department of Chemistry and Institute of Molecular Functional MaterialsCity University of Hong Kong Tat Chee Avenue Hong Kong P.R. China
- Department of ChemistryHong Kong Baptist University Waterloo Road Kowloon Tong Kowloon, Hong Kong P.R. China
| | - Lingjing Chen
- School of Environment and Civil EngineeringDongguan University of Technology Guangdong 523808 P.R. China
| | - Kai‐Chung Lau
- Department of Chemistry and Institute of Molecular Functional MaterialsCity University of Hong Kong Tat Chee Avenue Hong Kong P.R. China
| | - Tai‐Chu Lau
- Department of Chemistry and Institute of Molecular Functional MaterialsCity University of Hong Kong Tat Chee Avenue Hong Kong P.R. China
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22
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Haschke S, Mader M, Schlicht S, Roberts AM, Angeles-Boza AM, Barth JAC, Bachmann J. Direct oxygen isotope effect identifies the rate-determining step of electrocatalytic OER at an oxidic surface. Nat Commun 2018; 9:4565. [PMID: 30385759 PMCID: PMC6212532 DOI: 10.1038/s41467-018-07031-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/09/2018] [Indexed: 11/22/2022] Open
Abstract
Understanding the mechanism of water oxidation to dioxygen represents the bottleneck towards the design of efficient energy storage schemes based on water splitting. The investigation of kinetic isotope effects has long been established for mechanistic studies of various such reactions. However, so far natural isotope abundance determination of O2 produced at solid electrode surfaces has not been applied. Here, we demonstrate that such measurements are possible. Moreover, they are experimentally simple and sufficiently accurate to observe significant effects. Our measured kinetic isotope effects depend strongly on the electrode material and on the applied electrode potential. They suggest that in the case of iron oxide as the electrode material, the oxygen evolution reaction occurs via a rate-determining O−O bond formation via nucleophilic water attack on a ferryl unit. Understanding reaction mechanisms is crucial for catalyst design. Here, natural-abundance isotope quantifications of O2 yield mechanistically significant reaction kinetic isotope effects for water oxidation over metal oxide electrodes, the bottleneck step of water electrolysis.
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Affiliation(s)
- Sandra Haschke
- Department of Chemistry and Pharmacy, Chemistry of Thin Film Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstr. 4, 91058, Erlangen, Germany
| | - Michael Mader
- Department für Geographie und Geowissenschaften, GeoZentrum NordBayern, Applied Geology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schlossgarten 5, 91054, Erlangen, Germany
| | - Stefanie Schlicht
- Department of Chemistry and Pharmacy, Chemistry of Thin Film Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstr. 4, 91058, Erlangen, Germany
| | - André M Roberts
- Department für Geographie und Geowissenschaften, GeoZentrum NordBayern, Applied Geology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schlossgarten 5, 91054, Erlangen, Germany
| | - Alfredo M Angeles-Boza
- Department of Chemistry and Institute of Materials Science, University of Connecticut, 55 North Eagleville Rd., Storrs, CT, 06269, USA.
| | - Johannes A C Barth
- Department für Geographie und Geowissenschaften, GeoZentrum NordBayern, Applied Geology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schlossgarten 5, 91054, Erlangen, Germany.
| | - Julien Bachmann
- Department of Chemistry and Pharmacy, Chemistry of Thin Film Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstr. 4, 91058, Erlangen, Germany. .,Institute of Chemistry, Saint Petersburg State University, Universitetskii pr. 26, Saint Petersburg, Russian Federation, 198504.
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23
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Schmidbaur H. The History and the Current Revival of the Oxo Chemistry of Iron in its Highest Oxidation States: FeVI
- FeVIII. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800036] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hubert Schmidbaur
- Department Chemie; Technische Universität München; 85747 Garching Germany
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24
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Sarma R, Sloan MJ, Miller AF. Flavin-sensitized electrode system for oxygen evolution using photo-electrocatalysis. Chem Commun (Camb) 2018; 52:8834-7. [PMID: 27346375 DOI: 10.1039/c6cc01479h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Fabrication of bio-electrode systems decorated with redox active biomolecules, flavins, is demonstrated. Exploiting the photochemistry and electrochemistry of flavins, we explored the photo-electrochemical activity of flavin-functionalized electrode systems to assess their potential utility for sustainable energy production. As model systems, lumiflavin and flavin adenine dinucleotide were immobilized on carbon electrodes by dropcasting and covalent grafting techniques. Activity of these bio-electrodes towards generation of O2 from H2O in 0.5 M potassium phosphate buffer at pH 7.1 was demonstrated. Irradiation of the electrode system with visible light led to increased activity of the electrodes with a 3-fold enhancement of oxidation of H2O.
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Affiliation(s)
- Rupam Sarma
- Department of Chemistry, University of Kentucky, Lexington, Kentucky, USA.
| | - Madison J Sloan
- Department of Chemistry, University of Kentucky, Lexington, Kentucky, USA.
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25
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Schneider TW, Hren MT, Ertem MZ, Angeles-Boza AM. [RuII(tpy)(bpy)Cl]+-Catalyzed reduction of carbon dioxide. Mechanistic insights by carbon-13 kinetic isotope effects. Chem Commun (Camb) 2018; 54:8518-8521. [DOI: 10.1039/c8cc03009j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
13C kinetic isotope effect determinations combined with DFT calculations provide insight on the CO2 reduction reaction catalyzed by a ruthenium complex.
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Affiliation(s)
| | - M. T. Hren
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
| | - M. Z. Ertem
- Chemistry Division
- Energy & Photon Sciences Directorate
- Brookhaven National Laboratory
- Upton
- USA
| | - A. M. Angeles-Boza
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
- Institute of Materials Science
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26
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Garrido-Barros P, Gimbert-Suriñach C, Matheu R, Sala X, Llobet A. How to make an efficient and robust molecular catalyst for water oxidation. Chem Soc Rev 2017; 46:6088-6098. [DOI: 10.1039/c7cs00248c] [Citation(s) in RCA: 165] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The key factors to design an efficient and rugged molecular water oxidation catalyst (Mol-WOC) are reviewed and discussed.
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Affiliation(s)
- Pablo Garrido-Barros
- Institute of Chemical Research of Catalonia (ICIQ)
- Barcelona Institute of Science and Technology (BIST)
- 43007 Tarragona
- Spain
- Departament de Química Física i Inorgànica
| | - Carolina Gimbert-Suriñach
- Institute of Chemical Research of Catalonia (ICIQ)
- Barcelona Institute of Science and Technology (BIST)
- 43007 Tarragona
- Spain
| | - Roc Matheu
- Institute of Chemical Research of Catalonia (ICIQ)
- Barcelona Institute of Science and Technology (BIST)
- 43007 Tarragona
- Spain
- Departament de Química Física i Inorgànica
| | - Xavier Sala
- Departament de Química
- Universitat Autònoma de Barcelona
- Cerdanyola del Vallès
- 08193 Barcelona
- Spain
| | - Antoni Llobet
- Institute of Chemical Research of Catalonia (ICIQ)
- Barcelona Institute of Science and Technology (BIST)
- 43007 Tarragona
- Spain
- Departament de Química
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27
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Review on the Stability of Ferrate (VI) Species in Aqueous Medium and Oxidation of Pharmaceuticals and Personal Care Products (PPCPs) by Ferrate (VI): Identification of Transformation By-Products. ACTA ACUST UNITED AC 2016. [DOI: 10.1021/bk-2016-1238.ch012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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28
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29
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Pham HH, Cheng MJ, Frei H, Wang LW. Surface Proton Hopping and Fast-Kinetics Pathway of Water Oxidation on Co3O4 (001) Surface. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00713] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hieu H. Pham
- Joint
Center for Artificial Photosynthesis and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Mu-Jeng Cheng
- Joint
Center for Artificial Photosynthesis and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Heinz Frei
- Molecular
Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Lin-Wang Wang
- Joint
Center for Artificial Photosynthesis and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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30
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Schneider TW, Ertem MZ, Muckerman JT, Angeles-Boza AM. Mechanism of Photocatalytic Reduction of CO2 by Re(bpy)(CO)3Cl from Differences in Carbon Isotope Discrimination. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01208] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Taylor W. Schneider
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Mehmed Z. Ertem
- Chemistry Division, Energy & Photon Sciences Directorate, Brookhaven National Laboratory, Building 555A, Upton, New York 11973, United States
| | - James T. Muckerman
- Chemistry Division, Energy & Photon Sciences Directorate, Brookhaven National Laboratory, Building 555A, Upton, New York 11973, United States
| | - Alfredo M. Angeles-Boza
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
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31
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Ma L, Lam WWY, Lo PK, Lau KC, Lau TC. Ca(2+) -Induced Oxygen Generation by FeO4(2-) at pH 9-10. Angew Chem Int Ed Engl 2016; 55:3012-6. [PMID: 26798981 DOI: 10.1002/anie.201510156] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Indexed: 11/07/2022]
Abstract
Although FeO4(2-) (ferrate(IV)) is a very strong oxidant that readily oxidizes water in acidic medium, at pH 9-10 it is relatively stable (<2 % decomposition after 1 h at 298 K). However, FeO4(2-) is readily activated by Ca(2+) at pH 9-10 to generate O2. The reaction has the following rate law: d[O2]/dt=kCa [Ca(2+) ][FeO4(2-)](2). (18)O-labeling experiments show that both O atoms in O2 come from FeO4(2-). These results together with DFT calculations suggest that the function of Ca(2+) is to facilitate O-O coupling between two FeO4 (2-) ions by bridging them together. Similar activating effects are also observed with Mg(2+) and Sr(2+).
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Affiliation(s)
- Li Ma
- Department of Biology and Chemistry and Institute of Molecular Functional Materials, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China
| | - William W Y Lam
- Department of Biology and Chemistry and Institute of Molecular Functional Materials, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China
| | - Po-Kam Lo
- Department of Biology and Chemistry and Institute of Molecular Functional Materials, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China
| | - Kai-Chung Lau
- Department of Biology and Chemistry and Institute of Molecular Functional Materials, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China.
| | - Tai-Chu Lau
- Department of Biology and Chemistry and Institute of Molecular Functional Materials, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China.
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32
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Ma L, Lam WWY, Lo PK, Lau KC, Lau TC. Ca2+
-Induced Oxygen Generation by FeO4
2−
at pH 9-
10. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Li Ma
- Department of Biology and Chemistry and Institute of Molecular Functional Materials; City University of Hong Kong; Tat Chee Avenue, Kowloon Tong Hong Kong China
| | - William W. Y. Lam
- Department of Biology and Chemistry and Institute of Molecular Functional Materials; City University of Hong Kong; Tat Chee Avenue, Kowloon Tong Hong Kong China
| | - Po-Kam Lo
- Department of Biology and Chemistry and Institute of Molecular Functional Materials; City University of Hong Kong; Tat Chee Avenue, Kowloon Tong Hong Kong China
| | - Kai-Chung Lau
- Department of Biology and Chemistry and Institute of Molecular Functional Materials; City University of Hong Kong; Tat Chee Avenue, Kowloon Tong Hong Kong China
| | - Tai-Chu Lau
- Department of Biology and Chemistry and Institute of Molecular Functional Materials; City University of Hong Kong; Tat Chee Avenue, Kowloon Tong Hong Kong China
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33
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Insight into Metal-Catalyzed Water Oxidation from a DFT Perspective. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2016. [DOI: 10.1016/bs.adomc.2016.01.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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34
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Wang YB, Qu LL, Chen QY, Feng CJ. Light-driven charge transfer in nano-Fe(iii) complexes facilitates the oxidation of water. NEW J CHEM 2016. [DOI: 10.1039/c6nj00121a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BODIPY@Fe1 catalysed the oxidation of water with efficient energy transfer from the BODIPY antenna to the Fe1 through hydrogen.
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Affiliation(s)
- Yin-Bing Wang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- China
| | - Ling-Ling Qu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- China
| | - Qiu-Yun Chen
- School of Chemistry and Chemical Engineering
- Jiangsu University
- China
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35
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Machalová Šišková K, Jančula D, Drahoš B, Machala L, Babica P, Alonso PG, Trávníček Z, Tuček J, Maršálek B, Sharma VK, Zbořil R. High-valent iron (FeVI, FeV, and FeIV) species in water: characterization and oxidative transformation of estrogenic hormones. Phys Chem Chem Phys 2016; 18:18802-10. [DOI: 10.1039/c6cp02216b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Transformation of estrogenic hormones using high-valent iron species is described.
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36
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Kong MY, Wang L, Chen QY, Xu XL, Lu WL. Study on the interaction of Fe(III) complex of BODIPY appended di(picolyl)amine with water and HeLa cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:790-795. [PMID: 26172466 DOI: 10.1016/j.saa.2015.07.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 05/28/2015] [Accepted: 07/07/2015] [Indexed: 06/04/2023]
Abstract
The iron complex [(m-BDA)FeCl3] (Fe1) (m-BDA=8-[di(2-picolyl)amine-3-benzyl]-4,4-difluoro-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene) was characterized by spectroscopic methods. The emission intensity of Fe1 is weaker than that of m-BDA due to the electrostatic interaction between the Fe(III) ion and m-BDA. However, the coordination of water with the central Fe(III) ion in Fe1 changed metal-ligand charge transfer, thus the quenched emission at 509 nm was recovered. Furthermore, Fe1 can catalyze water oxidation to generate dioxygen when irradiated by green LED light (10W). In particular, the Fe1 can enter into HepG-2 cells and show different inhibition rates in black and under irradiation. The anticancer activity of Fe1 was greatly enhanced under irradiation. Our results demonstrate that Fe(III) complexes of BODIPY can be developed as new kinds of photodynamic agents.
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Affiliation(s)
- Meng-Yun Kong
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Li Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Qiu-Yun Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China.
| | - Xiao-Lei Xu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Wen-Long Lu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
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37
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Khan S, Yang KR, Ertem MZ, Batista VS, Brudvig GW. Mechanism of Manganese-Catalyzed Oxygen Evolution from Experimental and Theoretical Analyses of 18O Kinetic Isotope Effects. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01976] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sahr Khan
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Ke R. Yang
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Mehmed Z. Ertem
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
- Chemistry
Department, Brookhaven National Laboratory, Building 555A, Upton, New
York 11973, United States
| | - Victor S. Batista
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Gary W. Brudvig
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
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38
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Machala L, Procházka V, Miglierini M, Sharma VK, Marušák Z, Wille HC, Zbořil R. Direct evidence of Fe(V) and Fe(IV) intermediates during reduction of Fe(VI) to Fe(III): a nuclear forward scattering of synchrotron radiation approach. Phys Chem Chem Phys 2015; 17:21787-90. [PMID: 26248056 DOI: 10.1039/c5cp03784k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Identification of unstable high-valent iron species in electron transfer reactions of ferrate(VI) (Fe(VI)O4(2-), Fe(VI)) has been an important challenge in advancing the understanding of the oxidative mechanisms of ferrates. This paper presents the first example of distinguishing various phases differing in the valence state of iron in the solid state reduction of Fe(VI) to Fe(III) oxides at 235 °C using hyperfine parameters, isomer shift and hyperfine magnetic field, obtained from nuclear forward scattering of synchrotron radiation (NFS). The NFS technique enables a fast data accumulation resulting in high time resolution of in situ experiments. The results suggest a reaction mechanism, involving Fe(V) and Fe(IV) species, in the thermal decomposition of K2FeO4 to KFeO2. The present study opens up an approach to exploring the unambiguous identification of Fe(VI), Fe(V), Fe(IV), and Fe(III) in electron-transfer reaction mechanisms of ferrates in solid and aqueous phase systems.
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Affiliation(s)
- Libor Machala
- Regional Centre of Advanced Technologies and Materials, Departments of Experimental Physics and Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 11, 783 71 Olomouc, Czech Republic.
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39
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Olson AC, Keith JM, Batista ER, Boland KS, Daly SR, Kozimor SA, MacInnes MM, Martin RL, Scott BL. Using solution- and solid-state S K-edge X-ray absorption spectroscopy with density functional theory to evaluate M-S bonding for MS4(2-) (M = Cr, Mo, W) dianions. Dalton Trans 2015; 43:17283-95. [PMID: 25311904 DOI: 10.1039/c4dt02302a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we have evaluated relative changes in M-S electronic structure and orbital mixing in Group 6 MS4(2-) dianions using solid- and solution-phase S K-edge X-ray absorption spectroscopy (XAS; M = Mo, W), as well as density functional theory (DFT; M = Cr, Mo, W) and time-dependent density functional theory (TDDFT) calculations. To facilitate comparison with solution measurements (conducted in acetonitrile), theoretical models included gas-phase calculations as well as those that incorporated an acetonitrile dielectric, the latter of which provided better agreement with experiment. Two pre-edge features arising from S 1s → e* and t electron excitations were observed in the S K-edge XAS spectra and were reasonably assigned as (1)A1 → (1)T2 transitions. For MoS4(2-), both solution-phase pre-edge peak intensities were consistent with results from the solid-state spectra. For WS4(2-), solution- and solid-state pre-edge peak intensities for transitions involving e* were equivalent, while transitions involving the t orbitals were less intense in solution. Experimental and computational results have been presented in comparison to recent analyses of MO4(2-) dianions, which allowed M-S and M-O orbital mixing to be evaluated as the principle quantum number (n) for the metal valence d orbitals increased (3d, 4d, 5d). Overall, the M-E (E = O, S) analyses revealed distinct trends in orbital mixing. For example, as the Group 6 triad was descended, e* (π*) orbital mixing remained constant in the M-S bonds, but increased appreciably for M-O interactions. For the t orbitals (σ* + π*), mixing decreased slightly for M-S bonding and increased only slightly for the M-O interactions. These results suggested that the metal and ligand valence orbital energies and radial extensions delicately influenced the orbital compositions for isoelectronic ME4(2-) (E = O, S) dianions.
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Affiliation(s)
- Angela C Olson
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
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40
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Rosestolato D, Amadelli R, Velichenko AB. Electrode characteristics for ozone production: a case study using undoped and doped PbO2 on porous platinised titanium substrates. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-2945-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Zhang YX, Fu LZ, Zhou LL, Tang LZ, Zhan SZ. Synthesis and catalytic properties of an iron(III) complex supported by amine-bis(phenolate) ligand. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1050005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yun-Xiao Zhang
- College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Ling-Zhi Fu
- College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Ling-Ling Zhou
- College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Ling-Zhi Tang
- College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Shu-Zhong Zhan
- College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
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42
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Zhou LL, Tang LZ, Zhang YX, Zhan SZ. Synthesis of a molecular electrocatalyst based on an iron(III) complex supported by amine-bis(phenolate) ligand for water reduction. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.03.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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43
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A water-soluble dinuclear copper electrocatalyst, [Cu(oxpn)Cu(OH)2] for both water reduction and oxidation. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.02.101] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Jiang Y, Goodwill JE, Tobiason JE, Reckhow DA. Effect of different solutes, natural organic matter, and particulate Fe(III) on ferrate(VI) decomposition in aqueous solutions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:2841-2848. [PMID: 25629296 DOI: 10.1021/es505516w] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This study investigated the impacts of buffer ions, natural organic matter (NOM), and particulate Fe(III) on ferrate(VI) decomposition and characterized Fe(VI) decomposition kinetics and exposure in various waters. Homogeneous and heterogeneous Fe(VI) decomposition can be described as a second- and first-order reaction with respect to Fe(VI), respectively. Fe(VI) decay was catalyzed by Fe(VI) decomposition products. Solutes capable of forming complexes with iron hydroxides retarded Fe(VI) decay. Fractionation of the resulting solutions from Fe(VI) self-decay and ferric chloride addition in borate- and phosphate-buffered waters showed that phosphate could sequester Fe(III). The nature of the iron precipitate from Fe(VI) decomposition was different from that of freshly precipitated ferric hydroxide from ferric chloride solutions. The stabilizing effects of different solutes on Fe(VI) are in the following order: phosphate > bicarbonate > borate. The constituents of colored and alkaline waters (NOM and bicarbonate) inhibited the catalytic effects of Fe(VI) decomposition products and stabilized Fe(VI) in natural waters. Because of the stabilizing effects of solutes, moderate doses of Fe(VI) added to natural waters at pH 7.5 resulted in exposures that have been shown to be effective for inactivation of target pathogens. Preformed ferric hydroxide was less effective than freshly dosed ferric chloride in accelerating Fe(VI) decomposition.
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Affiliation(s)
- Yanjun Jiang
- Department of Civil and Environmental Engineering, University of Massachusetts , Amherst, Massachusetts 01003, United States
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45
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Fu LZ, Zhou LL, Zhan SZ. Electrochemical-driven water reduction and oxidation catalyzed by an iron(iii) complex supported by 2,3-bis(2-hydroxybenzylideneimino)-2,3-butenedinitrile. RSC Adv 2015. [DOI: 10.1039/c5ra05520b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
One electrocatalyst, [FeLCl(H2O)] for both water reduction and oxidation with a TOF of 808.46 moles h−1 and 0.849 s−1, respectively.
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Affiliation(s)
- Ling-Zhi Fu
- College of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Ling-Ling Zhou
- College of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Shu-Zhong Zhan
- College of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
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46
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Schneider TW, Angeles-Boza AM. Competitive 13C and 18O kinetic isotope effects on CO2 reduction catalyzed by Re(bpy)(CO)3Cl. Dalton Trans 2015; 44:8784-7. [DOI: 10.1039/c4dt03977g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Competitive 13C and 18O kinetic isotope effects (KIEs) on CO2 reduction reactions catalyzed by Re(bpy)(CO)3Cl are reported.
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47
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Shubin AA, Ruzankin SP, Zilberberg IL, Taran OP, Parmon VN. The routes of association of (hydro)oxo centers on iron hydroxide at the water oxidation process: DFT predictions. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2014.11.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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48
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Yuan SJ, Li XW, Dai XH. Efficient degradation of organic pollutants with a sewage sludge support and in situ doped TiO2under visible light irradiation conditions. RSC Adv 2014. [DOI: 10.1039/c4ra12434k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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49
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Coggins MK, Zhang MT, Chen Z, Song N, Meyer TJ. Single-Site Copper(II) Water Oxidation Electrocatalysis: Rate Enhancements with HPO42−as a Proton Acceptor at pH 8. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407131] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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50
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Coggins MK, Zhang MT, Chen Z, Song N, Meyer TJ. Single-Site Copper(II) Water Oxidation Electrocatalysis: Rate Enhancements with HPO42−as a Proton Acceptor at pH 8. Angew Chem Int Ed Engl 2014; 53:12226-30. [DOI: 10.1002/anie.201407131] [Citation(s) in RCA: 162] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Indexed: 11/10/2022]
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