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Srivastava H, Kumar Srivastava A, Misra N. Interaction of N 2, O 2 and H 2 Molecules with Superalkalis. ChemistryOpen 2024; 13:e202300253. [PMID: 38196056 PMCID: PMC11230923 DOI: 10.1002/open.202300253] [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: 11/08/2023] [Revised: 12/18/2023] [Indexed: 01/11/2024] Open
Abstract
Superalkalis (SAs) are exotic clusters having lower ionization energy than alkali atoms, which makes them strong reducing agents. In the quest for the reduction of diatomic molecules (X2) such as N2, O2, and H2 using Møller-Plesset perturbation theory (MP2), we have studied their interaction with typical superalkalis such as FLi2, OLi3, and NLi4 and calculated various parameters of the resulting SA-X2 complexes. We noticed that the SA-O2 complex and its isomers possess strong ionic interaction, which leads to the reduction of O2 to O2 - anion. On the contrary, there are both ionic and covalent interactions in SA-N2 complexes such that the lowest energy isomers are covalently bonded with no charge transfer from SA. Further, the interaction between SA and H2 leads to weakly bound complexes, which results in the adsorption of H2 molecules. The nature of interaction is found to be closely related to the electron affinity of diatomic molecules. These findings might be useful in the study of the activation, reduction, and adsorption of small molecules, which can be further explored for their possible applications.
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Affiliation(s)
- Harshita Srivastava
- Department of PhysicsDeen Dayal Upadhyaya Gorakhpur University273009GorakhpurUttar PradeshIndia
| | | | - Neeraj Misra
- Department of PhysicsUniversity of Lucknow226007LucknowUttar PradeshIndia
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2
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Yin H, Wu B, Ma X, Su G, Han M, Lin H, Liu X, Li H, Zeng J. CO-Assisted Methane Oxidation into Oxygenates over Surface Platinum-Titanium Alloyed Layers. NANO LETTERS 2024. [PMID: 38511842 DOI: 10.1021/acs.nanolett.4c00786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Methane oxidation using molecular oxygen remains a grand challenge in which the obstacle is not only the activation of methane but also the reaction with oxygen, considering the mismatch of the ground spin states. Herein, we report TiO2-supported Pt nanocrystals (Pt/TiO2) with surface Pt-Ti alloyed layers that directly convert methane into oxygenates by using O2 as the oxidant with the assistance of CO. The oxygenate yield reached 749.8 mmol gPt-1 in a H2O aqueous solution over 0.1% Pt/TiO2 under 31 bar of mixed gas (20:5:6 CH4:CO:O2) at 150 °C for 3 h, while the CH3OH selectivity was 62.3%. On the basis of the control experiments and spectroscopic results, we identified the surface Pt-Ti alloy as the active sites. Moreover, CO promoted the dissociation of O2 on the surface of Pt-Ti alloyed layers and the subsequent activation of CH4 to form oxygenated products.
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Affiliation(s)
- Haibin Yin
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Bo Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Xinlong Ma
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Guangning Su
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Mei Han
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Hongfei Lin
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Xinglong Liu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Hongliang Li
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Jie Zeng
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- School of Chemistry & Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243002, P. R. China
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3
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Cao Q, Diefenbach M, Maguire C, Krewald V, Muldoon MJ, Hintermair U. Water co-catalysis in aerobic olefin epoxidation mediated by ruthenium oxo complexes. Chem Sci 2024; 15:3104-3115. [PMID: 38425537 PMCID: PMC10901482 DOI: 10.1039/d3sc05516g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 01/05/2024] [Indexed: 03/02/2024] Open
Abstract
We report the development of a versatile Ru-porphyrin catalyst system which performs the aerobic epoxidation of aromatic and aliphatic (internal) alkenes under mild conditions, with product yields of up to 95% and turnover numbers (TON) up to 300. Water is shown to play a crucial role in the reaction, significantly increasing catalyst efficiency and substrate scope. Detailed mechanistic investigations employing both computational studies and a range of experimental techniques revealed that water activates the RuVI di-oxo complex for alkene epoxidation via hydrogen bonding, stabilises the RuIV mono-oxo intermediate, and is involved in the regeneration of the RuVI di-oxo complex leading to oxygen atom exchange. Distinct kinetics are obtained in the presence of water, and side reactions involved in catalyst deactivation have been identified.
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Affiliation(s)
- Qun Cao
- School of Chemistry and Chemical Engineering, Queen's University Belfast Northern Ireland UK
- Dynamic Reaction Monitoring Facility, Institute for Sustainability, University of Bath UK
| | - Martin Diefenbach
- Theoretical Chemistry, Department of Chemistry, Technische Universität Darmstadt Germany
| | - Calum Maguire
- School of Chemistry and Chemical Engineering, Queen's University Belfast Northern Ireland UK
| | - Vera Krewald
- Theoretical Chemistry, Department of Chemistry, Technische Universität Darmstadt Germany
| | - Mark J Muldoon
- School of Chemistry and Chemical Engineering, Queen's University Belfast Northern Ireland UK
| | - Ulrich Hintermair
- Dynamic Reaction Monitoring Facility, Institute for Sustainability, University of Bath UK
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4
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Abstract
Endogenous photosensitizers play a critical role in both beneficial and harmful light-induced transformations in biological systems. Understanding their mode of action is essential for advancing fields such as photomedicine, photoredox catalysis, environmental science, and the development of sun care products. This review offers a comprehensive analysis of endogenous photosensitizers in human skin, investigating the connections between their electronic excitation and the subsequent activation or damage of organic biomolecules. We gather the physicochemical and photochemical properties of key endogenous photosensitizers and examine the relationships between their chemical reactivity, location within the skin, and the primary biochemical events following solar radiation exposure, along with their influence on skin physiology and pathology. An important take-home message of this review is that photosensitization allows visible light and UV-A radiation to have large effects on skin. The analysis presented here unveils potential causes for the continuous increase in global skin cancer cases and emphasizes the limitations of current sun protection approaches.
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Affiliation(s)
- Erick L Bastos
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
| | - Frank H Quina
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
- Department of Chemical Engineering, Polytechnic School, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
| | - Maurício S Baptista
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
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5
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Ortega P, Gil-Guerrero S, González-Sánchez L, Sanz-Sanz C, Jambrina PG. Spin-Forbidden Addition of Molecular Oxygen to Stable Enol Intermediates-Decarboxylation of 2-Methyl-1-tetralone-2-carboxylic Acid. Int J Mol Sci 2023; 24:ijms24087424. [PMID: 37108586 PMCID: PMC10138960 DOI: 10.3390/ijms24087424] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
The deprotonation of an organic substrate is a common preactivation step for the enzymatic cofactorless addition of O2 to this substrate, as it promotes charge-transfer between the two partners, inducing intersystem crossing between the triplet and singlet states involved in the process. Nevertheless, the spin-forbidden addition of O2 to uncharged ligands has also been observed in the laboratory, and the detailed mechanism of how the system circumvents the spin-forbiddenness of the reaction is still unknown. One of these examples is the cofactorless peroxidation of 2-methyl-3,4-dihydro-1-naphthol, which will be studied computationally using single and multi-reference electronic structure calculations. Our results show that the preferred mechanism is that in which O2 picks a proton from the substrate in the triplet state, and subsequently hops to the singlet state in which the product is stable. For this reaction, the formation of the radical pair is associated with a higher barrier than that associated with the intersystem crossing, even though the absence of the negative charge leads to relatively small values of the spin-orbit coupling.
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Affiliation(s)
- Pablo Ortega
- Departamento de Química-Física, Universidad de Salamanca, 37008 Salamanca, Spain
| | - Sara Gil-Guerrero
- Departamento de Química-Física, Universidad de Salamanca, 37008 Salamanca, Spain
- CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | - Cristina Sanz-Sanz
- Departamento de Química Física Aplicada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Pablo G Jambrina
- Departamento de Química-Física, Universidad de Salamanca, 37008 Salamanca, Spain
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6
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Yamamoto Y, Kodama S, Nomoto A, Ogawa A. Innovative green oxidation of amines to imines under atmospheric oxygen. Org Biomol Chem 2022; 20:9503-9521. [PMID: 36218331 DOI: 10.1039/d2ob01421a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In recent years, the development of environmentally benign molecular construction methods has been of great importance, and especially, resource recycling, high atomic efficiency, and low environmental impact are in high demand. From this point of view, attention has also been focused on the development of one-pot synthesis of pharmaceuticals and functional molecules. Imines are excellent synthetic intermediates of these useful molecules, and the environmentally friendly oxidative synthesis of imines from amines has been energetically developed using oxygen (or air), which is abundantly available on the Earth, as an oxidant. This review focuses on the latest innovative and green oxidation systems of amines to imines under atmospheric oxygen, and their application to one-pot/eco-friendly and sustainable synthesis of pharmaceuticals and functional molecules. In particular, catalytic systems that activate molecular oxygen are categorized and described in detail as transition metal catalytic systems, photoirradiated catalytic systems, and organocatalytic systems.
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Affiliation(s)
- Yuki Yamamoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan.
| | - Shintaro Kodama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan.
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan.
| | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan.
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7
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Pawar SA, Poojari SV, A VK. Cu2O‐CD nanosuperstructures as a BiomimeticCatalyst for Oxidation of Benzylicsp3 C–H bonds and SecondaryAmines using Molecular Oxygen:First Total Synthesis ofproposed SwerilactoneO. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Vijay Kumar A
- Institute of Chemical Technology Department of Chemistry C304,Advance CentreDepartment of Chemistry, Institute of Chemical TechnologyNP Marg,Matunga 400019 Mumbai INDIA
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8
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Etim UJ, Bai P, Gazit OM, Zhong Z. Low-Temperature Heterogeneous Oxidation Catalysis and Molecular Oxygen Activation. CATALYSIS REVIEWS 2021. [DOI: 10.1080/01614940.2021.1919044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ubong J. Etim
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
| | - Peng Bai
- College of Chemical Engineering, China University of Petroleum, Qingdao, China
| | - Oz M. Gazit
- Wolfson Faculty of Chemical Engineering, Technion – Israel Institute of Technology, Haifa, Israel
| | - Ziyi Zhong
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
- Technion Israel Institute of Technology (IIT), Haifa, Israel
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9
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Meyer RL, Miró P, Brennessel WW, Matson EM. O 2 Activation with a Sterically Encumbered, Oxygen-Deficient Polyoxovanadate-Alkoxide Cluster. Inorg Chem 2021; 60:13833-13843. [PMID: 34161731 DOI: 10.1021/acs.inorgchem.1c00887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The isolation of the oxygen-deficient, polyoxovanadate-alkoxide (POV-alkoxide) cluster, [nBu4N][V6O6(OMe)12(MeCN)], and its subsequent reactivity with oxygen (O2), has demonstrated the utility of these assemblies as molecular models for heterogeneous metal oxide catalysts. However, the mechanism through which this cluster activates and reduces O2 to generate the oxygenated species is poorly understood. Currently it is speculated that this POV-alkoxide mediates the four-electron O-O bond cleavage through an O2 bridged dimeric intermediate, a mechanism which is not viable for O2 reduction at solid-state metal oxide surfaces. Here, we report the successful activation and reduction of O2 by the calix-functionalized POV-alkoxide cluster, [nBu4N][(calix)V6O6(OMe)8](MeCN)] (calix = 4-tert-butylcalix[4]arene). The steric hindrance imparted to the open vanadium site by the calix motif eliminates the possibility of cooperative, bimolecular O2 activation, allowing for a comparison of the reactivity of this system with that of the nonfunctionalized POV-alkoxide described previously. Rigorous characterization of the calix-substituted assembly, enabled by its newfound solubility in organic solvent, reveals that the incorporation of the tetradentate aryloxide ligand into the POV-alkoxide scaffold perturbs the electronic communication between the site-differentiated vanadium(III) ion and the cluster core. Collectively, our results provide insight into the physiochemical factors that are important during the O2 reduction reaction at oxygen-deficient sites in reduced POV-alkoxide clusters.
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Affiliation(s)
- Rachel L Meyer
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Pere Miró
- Department of Chemistry, University of South Dakota, Vermillion, South Dakota 57069, United States
| | - William W Brennessel
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Ellen M Matson
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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10
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Lyu P, Zhu J, Han C, Qiang L, Zhang L, Mei B, He J, Liu X, Bian Z, Li H. Self-Driven Reactive Oxygen Species Generation via Interfacial Oxygen Vacancies on Carbon-Coated TiO 2-x with Versatile Applications. ACS APPLIED MATERIALS & INTERFACES 2021; 13:2033-2043. [PMID: 33378149 DOI: 10.1021/acsami.0c19414] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The effective activation and utilization of O2 have always been the focus of scientists because of its wide applications in catalysis, organic synthesis, life and medical science. Here, a novel method for activating O2 spontaneously via interfacial oxygen vacancies on carbon-coated TiO2-x to generate reactive oxygen species (ROS) with versatile applications is reported. The interfacial oxygen vacancies can be stabilized by the carbon layer and hold its intrinsic properties for spontaneous oxygen activation without light irradiation, while common surface oxygen vacancies on TiO2-x are always consumed by the capture of H2O to form the surface hydroxyls. Thus, O2 absorbed at the interface of carbon and TiO2-x can be directly activated into singlet oxygen (1O2) or superoxide radicals (·O2-), confirmed both experimentally and theoretically. These reactive oxygen species exhibit excellent performance in oxidation reactions and inhibition of MCF-7 cancer cells, providing new insight into the effective utilization of O2 via oxygen vacancies on metal oxides.
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Affiliation(s)
- Pin Lyu
- The Education Ministry Key Laboratory of Resource Chemistry, International Joint Laboratory of Resource Chemistry, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P.R. China
| | - Jian Zhu
- The Education Ministry Key Laboratory of Resource Chemistry, International Joint Laboratory of Resource Chemistry, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P.R. China
| | - Chongchong Han
- The Education Ministry Key Laboratory of Resource Chemistry, International Joint Laboratory of Resource Chemistry, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P.R. China
| | - Lei Qiang
- The Education Ministry Key Laboratory of Resource Chemistry, International Joint Laboratory of Resource Chemistry, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P.R. China
| | - Linlin Zhang
- Department of Nuclear Medicine, Xinhua Hospital Affiliated to Shanghai Jiao Tong University, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Bingbao Mei
- Chinese Academy of Sciences, Shanghai Institute of Applied Physics, Shanghai 201203, P.R. China
| | - Jiehong He
- The Education Ministry Key Laboratory of Resource Chemistry, International Joint Laboratory of Resource Chemistry, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P.R. China
| | - Xiaoyan Liu
- The Education Ministry Key Laboratory of Resource Chemistry, International Joint Laboratory of Resource Chemistry, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P.R. China
| | - Zhenfeng Bian
- The Education Ministry Key Laboratory of Resource Chemistry, International Joint Laboratory of Resource Chemistry, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P.R. China
| | - Hexing Li
- The Education Ministry Key Laboratory of Resource Chemistry, International Joint Laboratory of Resource Chemistry, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P.R. China
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12
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She J, Lin X, Fu Z, Li J, Tang S, Lei M, Zhang X, Zhang C, Yin D. HCl and O2 co-activated bis(8-quinolinolato) oxovanadium(iv) complexes as efficient photoactive species for visible light-driven oxidation of cyclohexane to KA oil. Catal Sci Technol 2019. [DOI: 10.1039/c8cy01241e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Photoactive species (PA) originating from HCl and O2 co-activated bis(8-quinolinolato) oxovanadium(iv) can effectively modulate the photocatalytic oxidation of cyclohexane.
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Affiliation(s)
- Jialuo She
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Xiangfeng Lin
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Key Laboratory of Resource Fine-Processing and Advanced Materials of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
| | - Zaihui Fu
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Key Laboratory of Resource Fine-Processing and Advanced Materials of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
| | - Jianwei Li
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Senpei Tang
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Key Laboratory of Resource Fine-Processing and Advanced Materials of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Xin Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Chao Zhang
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Key Laboratory of Resource Fine-Processing and Advanced Materials of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
| | - Dulin Yin
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Key Laboratory of Resource Fine-Processing and Advanced Materials of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
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13
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Ren X, Zhang Z, Wang Y, Lu J, An J, Zhang J, Wang M, Wang X, Luo Y. Capping experiments reveal multiple surface active sites in CeO2 and their cooperative catalysis. RSC Adv 2019; 9:15229-15237. [PMID: 35514842 PMCID: PMC9064254 DOI: 10.1039/c9ra02353d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 05/08/2019] [Indexed: 12/15/2022] Open
Abstract
Understanding of surface active sites (SAS) of CeO2 is crucial to its catalytic applications. In the present study, we have employed capping experiments, DFT calculations, and spectroscopic characterization to study pristine CeO2 catalyst. We find that multiple SAS coexist on the CeO2 surface: oxygen vacancies as redox sites and the coordinately unsaturated Ce cations near the oxygen vacancies and the neighboring oxygen ions as Lewis acid–base sites. Dimethylsulfoxide (DMSO), pyridine, and benzoic acid are utilized to cap the redox sites, Lewis acid sites, and base sites, respectively. Selective capping on the redox site does not have much effect on the acid–base catalysis, and vice versa, indicating the distinct surface proximity and independent catalysis of these SAS. We draw attention to a relationship between the well-known redox sites and the surface Lewis acid and Lewis base pairs on CeO2 surface, which are responsible for driving various heterogeneous catalytic reactions. Capping with pyridine, benzoic acid, and DMSO in catalytic reactions reveals the locations of surface active sites of CeO2.![]()
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Affiliation(s)
- Xiaoning Ren
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- China
| | - Zhixin Zhang
- State Key Laboratory of Catalysis
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
| | - Yehong Wang
- State Key Laboratory of Catalysis
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
| | - Jianmin Lu
- State Key Laboratory of Catalysis
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
| | - Jinghua An
- State Key Laboratory of Catalysis
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
| | - Jian Zhang
- State Key Laboratory of Catalysis
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
| | - Min Wang
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- China
| | - Xinkui Wang
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- China
| | - Yi Luo
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- China
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14
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Carrasco CJ, Montilla F, Álvarez E, Galindo A. Synthesis of α,β-Dicarbonylhydrazones by Aerobic Manganese-Catalysed Oxidation. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Carlos J. Carrasco
- Departamento de Química Inorgánica, Facultad de Química; Universidad de Sevilla; Aptdo 1203 41071 Sevilla Spain
| | - Francisco Montilla
- Departamento de Química Inorgánica, Facultad de Química; Universidad de Sevilla; Aptdo 1203 41071 Sevilla Spain
| | - Eleuterio Álvarez
- Instituto de Investigaciones Químicas; CSIC-Universidad de Sevilla; Avda. Américo Vespucio 49 41092 Sevilla Spain
| | - Agustín Galindo
- Departamento de Química Inorgánica, Facultad de Química; Universidad de Sevilla; Aptdo 1203 41071 Sevilla Spain
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15
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Szécsényi Á, Li G, Gascon J, Pidko EA. Unraveling reaction networks behind the catalytic oxidation of methane with H 2O 2 over a mixed-metal MIL-53(Al,Fe) MOF catalyst. Chem Sci 2018; 9:6765-6773. [PMID: 30310609 PMCID: PMC6113888 DOI: 10.1039/c8sc02376j] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/20/2018] [Indexed: 01/09/2023] Open
Abstract
Reaction paths underlying the catalytic oxidation of methane with H2O2 over an Fe containing MIL-53(Al) metal-organic framework were studied by periodic DFT calculations. Not only the activation of methane, but the full reaction network was considered, which includes the formation of the active site, the overoxidation of methane to CO2 and the decomposition of H2O2 to H2O and O2. Calculations indicate that the activation barrier for the initial activation of the Fe sites upon reaction with H2O2 is comparable to that of the subsequent C-H activation and also of the reaction steps involved in the undesirable overoxidation processes. The pronounced selectivity of the oxidation reaction over MIL-53(Al,Fe) towards the target mono-oxygenated CH3OH and CH3OOH products is attributed to the limited coordination freedom of the Fe species encapsulated in the extended octahedral [AlO6] structure-forming chains, which effectively prevents the direct overoxidation paths prior to product desorption from the active sites. Importantly, our computational analysis reveals that the active sites for the desired methane oxidation are able to much more efficiently promote the direct catalytic H2O2 decomposition reaction, rendering thus the current combination of the active site and the reactants undesirable for the prospective methane valorization process.
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Affiliation(s)
- Ágnes Szécsényi
- Inorganic Systems Engineering Group , Chemical Engineering Department , Delft University of Technology , Van der Maasweg 9 , 2629 HZ Delft , The Netherlands . ; Tel: +31 1527 81938
- Catalysis Engineering , Chemical Engineering Department , Delft University of Technology , Van der Maasweg 9 , 2629 HZ Delft , the Netherlands
| | - Guanna Li
- Inorganic Systems Engineering Group , Chemical Engineering Department , Delft University of Technology , Van der Maasweg 9 , 2629 HZ Delft , The Netherlands . ; Tel: +31 1527 81938
- Catalysis Engineering , Chemical Engineering Department , Delft University of Technology , Van der Maasweg 9 , 2629 HZ Delft , the Netherlands
| | - Jorge Gascon
- King Abdullah University of Science and Technology , KAUST Catalysis Center , Advanced Catalytic Materials , Thuwal 23955 , Saudi Arabia
| | - Evgeny A Pidko
- Inorganic Systems Engineering Group , Chemical Engineering Department , Delft University of Technology , Van der Maasweg 9 , 2629 HZ Delft , The Netherlands . ; Tel: +31 1527 81938
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16
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Moonshiram D, Picón A, Vazquez-Mayagoitia A, Zhang X, Tu MF, Garrido-Barros P, Mahy JP, Avenier F, Aukauloo A. Elucidating light-induced charge accumulation in an artificial analogue of methane monooxygenase enzymes using time-resolved X-ray absorption spectroscopy. Chem Commun (Camb) 2018; 53:2725-2728. [PMID: 28198893 DOI: 10.1039/c6cc08748e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report the use of time-resolved X-ray absorption spectroscopy in the ns-μs time scale to track the light induced two electron transfer processes in a multi-component photocatalytic system, consisting of [Ru(bpy)3]2+/ a diiron(iii,iii) model/triethylamine. EXAFS analysis with DFT calculations confirms the structural configurations of the diiron(iii,iii) and reduced diiron(ii,ii) states.
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Affiliation(s)
- Dooshaye Moonshiram
- Chemical Sciences and Engineering Division, 9700 S. Cass Avenue, Lemont IL 60439, USA.
| | - Antonio Picón
- Chemical Sciences and Engineering Division, 9700 S. Cass Avenue, Lemont IL 60439, USA.
| | | | - Xiaoyi Zhang
- X-ray Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont IL 60439, USA
| | - Ming-Feng Tu
- Chemical Sciences and Engineering Division, 9700 S. Cass Avenue, Lemont IL 60439, USA.
| | - Pablo Garrido-Barros
- Institute of Chemical Research of Catalonia (ICIQ), Avgda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Jean-Pierre Mahy
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR CNRS 8182), Bat 420, Rue Doyen G. Poitou, Université Paris-Sud, Orsay 91405, France
| | - Frédéric Avenier
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR CNRS 8182), Bat 420, Rue Doyen G. Poitou, Université Paris-Sud, Orsay 91405, France
| | - Ally Aukauloo
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR CNRS 8182), Bat 420, Rue Doyen G. Poitou, Université Paris-Sud, Orsay 91405, France and Service de Bioénergétique, Biologie Structurale et Mécanismes (SB2SM), CEA, iBiTec-S Biochimie Biophysique et Biologie Structurale (B3S), I2BC, UMR 9198, F-91191 Gif-sur-Yvette, France
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17
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Rucinska E, Miedziak PJ, Pattisson S, Brett GL, Iqbal S, Morgan DJ, Sankar M, Hutchings GJ. Cinnamyl alcohol oxidation using supported bimetallic Au–Pd nanoparticles: an investigation of autoxidation and catalysis. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00155c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, we examine autoxidation and its role on the catalytic aerobic oxidation of cinnamyl alcohol using supported AuPd nanoparticles.
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Affiliation(s)
| | | | | | | | - Sarwat Iqbal
- Cardiff Catalysis Institute
- Cardiff University
- Cardiff
- UK
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18
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Liu X, Conte M, He Q, Knight DW, Murphy DM, Taylor SH, Whiston K, Kiely CJ, Hutchings GJ. Catalytic Partial Oxidation of Cyclohexane by Bimetallic Ag/Pd Nanoparticles on Magnesium Oxide. Chemistry 2017; 23:11834-11842. [DOI: 10.1002/chem.201605941] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 03/07/2017] [Indexed: 01/21/2023]
Affiliation(s)
- Xi Liu
- Cardiff Catalysis Institute, School of Chemistry; Cardiff University; Cardiff CF10 3AT UK
- Syncat@Beijing, Synfuels China Technology Co., Ltd; Beijing 101407 P.R. China
| | - Marco Conte
- Cardiff Catalysis Institute, School of Chemistry; Cardiff University; Cardiff CF10 3AT UK
- Department of Chemistry; Dainton Building; University of Sheffield; Sheffield S3 7HF UK
| | - Qian He
- Cardiff Catalysis Institute, School of Chemistry; Cardiff University; Cardiff CF10 3AT UK
- Department of Materials Science and Engineering; Lehigh University; 5 East Packer Avenue Bethlehem PA 18015-3195 USA
| | - David W. Knight
- Cardiff Catalysis Institute, School of Chemistry; Cardiff University; Cardiff CF10 3AT UK
| | - Damien M. Murphy
- Cardiff Catalysis Institute, School of Chemistry; Cardiff University; Cardiff CF10 3AT UK
| | - Stuart H. Taylor
- Cardiff Catalysis Institute, School of Chemistry; Cardiff University; Cardiff CF10 3AT UK
| | - Keith Whiston
- INVISTA Textiles (UK) Limited; P.O. Box 2002 Wilton, Redcar TS10 4XX UK
| | - Christopher J. Kiely
- Department of Materials Science and Engineering; Lehigh University; 5 East Packer Avenue Bethlehem PA 18015-3195 USA
| | - Graham J. Hutchings
- Cardiff Catalysis Institute, School of Chemistry; Cardiff University; Cardiff CF10 3AT UK
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19
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Weston JO, Miyamura H, Yasukawa T, Sutarma D, Baker CA, Singh PK, Bravo-Sanchez M, Sano N, Cumpson PJ, Ryabenkova Y, Kobayashi S, Conte M. Water as a catalytic switch in the oxidation of aryl alcohols by polymer incarcerated rhodium nanoparticles. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01006k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rh nanoparticles that were inactive in toluene, were converted into a powerful catalyst for aryl alcohol oxidation by the presence of water in the reaction media.
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20
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Minaev B. Photochemistry and Spectroscopy of Singlet Oxygen in Solvents. Recent Advances which Support the Old Theory. CHEMISTRY & CHEMICAL TECHNOLOGY 2016. [DOI: 10.23939/chcht10.04si.519] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Molecular oxygen is a paramagnetic gas with the triplet O2( ) ground state which exhibits just sluggish chemical reactivity in the absence of radical sources. In contrast, the excited metastable singlet oxygen O2( ) is highly reactive; it can oxygenate organic molecules in a wide range of specific reactions which differ from those of the usual triplet oxygen of the air. This makes the singlet oxygen an attractive reagent for new synthesis and even for medical treatments in photodynamic therapy. As an important intermediate O2( ) has attracted great attention of chemists during half-century studies of its reactivity and spectroscopy, but unusual properties of singlet oxygen makes it difficult to unravel all mysterious features. The semiempirical theory of spin-orbit coupling in dioxygen and in collision complexes of O2 with diamagnetic molecules proposed in 1982 year has explained and predicted many photochemical and spectral properties of dioxygen produced by the dye sensitization in solvents. Recent experiments with direct laser excitation of O2 in solvents provide a complete support of the old theory. The present review scrutinizes the whole story of development and experimental verification of this theory.
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21
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Zhang X, Yi H, Luo Y, Lei A. Tuning O2Reactivity through Synergistic Photo/Copper Catalysis: Direct Synthesis of 4-Aryl tetralones via Cyclodimerization-Oxygenation of Styrenes. Chem Asian J 2016; 11:2117-20. [DOI: 10.1002/asia.201600758] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Indexed: 12/27/2022]
Affiliation(s)
- Xu Zhang
- College of Chemistry and Molecular Sciences; Institute for Advanced Studies; Wuhan University; Wuhan Hubei 430072 P. R. China
| | - Hong Yi
- College of Chemistry and Molecular Sciences; Institute for Advanced Studies; Wuhan University; Wuhan Hubei 430072 P. R. China
| | - Yi Luo
- College of Chemistry and Molecular Sciences; Institute for Advanced Studies; Wuhan University; Wuhan Hubei 430072 P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences; Institute for Advanced Studies; Wuhan University; Wuhan Hubei 430072 P. R. China
- National Research Center for Carbohydrate Synthesis; Jiangxi Normal University; Nanchang 330022 Jiangxi P. R. China
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22
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Olivos-Suarez AI, Szécsényi À, Hensen EJM, Ruiz-Martinez J, Pidko EA, Gascon J. Strategies for the Direct Catalytic Valorization of Methane Using Heterogeneous Catalysis: Challenges and Opportunities. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00428] [Citation(s) in RCA: 336] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Alma I. Olivos-Suarez
- Catalysis
Engineering, Chemical Engineering Department Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands
| | - Àgnes Szécsényi
- Catalysis
Engineering, Chemical Engineering Department Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands
- Inorganic
Materials Chemistry group, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Emiel J. M. Hensen
- Inorganic
Materials Chemistry group, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Javier Ruiz-Martinez
- AkzoNobel - Supply Chain, Research & Development, Process Technology SRG, 7418 AJ Deventer, The Netherlands
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Evgeny A. Pidko
- Inorganic
Materials Chemistry group, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Jorge Gascon
- Catalysis
Engineering, Chemical Engineering Department Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands
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23
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Xiao Z, Zhan W, Guo Y, Guo Y, Gong X, Lu G. The synthesis of Co-doped SAPO-5 molecular sieve and its performance in the oxidation of cyclohexane with molecular oxygen. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(15)61014-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Insights into the Reaction Mechanism of Cyclohexane Oxidation Catalysed by Molybdenum Blue Nanorings. Catal Letters 2015. [DOI: 10.1007/s10562-015-1660-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Visitsatthawong S, Chenprakhon P, Chaiyen P, Surawatanawong P. Mechanism of Oxygen Activation in a Flavin-Dependent Monooxygenase: A Nearly Barrierless Formation of C4a-Hydroperoxyflavin via Proton-Coupled Electron Transfer. J Am Chem Soc 2015; 137:9363-74. [DOI: 10.1021/jacs.5b04328] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Surawit Visitsatthawong
- Department
of Chemistry and Center of Excellence for Innovation in
Chemistry, Faculty of Science, †Institute for Innovative Learning, and ∥Department of
Biochemistry and Center of Excellence in Protein Structure and Function,
Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Pirom Chenprakhon
- Department
of Chemistry and Center of Excellence for Innovation in
Chemistry, Faculty of Science, †Institute for Innovative Learning, and ∥Department of
Biochemistry and Center of Excellence in Protein Structure and Function,
Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Pimchai Chaiyen
- Department
of Chemistry and Center of Excellence for Innovation in
Chemistry, Faculty of Science, †Institute for Innovative Learning, and ∥Department of
Biochemistry and Center of Excellence in Protein Structure and Function,
Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Panida Surawatanawong
- Department
of Chemistry and Center of Excellence for Innovation in
Chemistry, Faculty of Science, †Institute for Innovative Learning, and ∥Department of
Biochemistry and Center of Excellence in Protein Structure and Function,
Faculty of Science, Mahidol University, Bangkok 10400, Thailand
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