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Title: Photo-generated reactive oxygen species assisted tandem amine homocoupling and amine-alcohol cross-coupling reaction on mesoporous spinel cobalt oxide

Journal Article · · Applied Catalysis B: Environmental

Mesoporous spinel cobalt oxide (Co3O4) with fine-tuned pore size distributions (9.6–17.6 nm) and different surface areas (33–85 m2/g) were synthesized using a series of nonionic surfactants. A direct influence of the chemical composition of the surfactants and calcination temperature on crystallite size, morphology, pore size/volume, surface area, valance band edge, and Co2+/Co3+ ratio was recognized. Correlation between the aforementioned factors, transition metal ion incorporation and benzylamine homocoupling reaction was discussed. Shape-specific binding of amine on the cobalt oxide active sites was proposed based on substrate scope study. Tandem synthesis strategy to selectively synthesize amine (aliphatic/aromatic) homo-coupled imines and amine-alcohol cross-coupled imines was introduced. Low-intensity light-induced singlet oxygen and hydroxyl radical-mediated reaction mechanism was proposed based on the EPR, XPS, photoreactor, and reactive oxygen species scavenger tests. Selective and switchable synthesis of homo-coupled (yield 85%) and cross-coupled (yield 87%) products was achieved with sodium azide and mannitol additives.

Research Organization:
Univ. of Connecticut, Storrs, CT (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-86ER13622
OSTI ID:
1800624
Alternate ID(s):
OSTI ID: 1602891
Journal Information:
Applied Catalysis B: Environmental, Vol. 268; ISSN 0926-3373
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

References (66)

Highly Efficient Oxidation of Amines to Imines by Singlet Oxygen and Its Application in Ugi-Type Reactions journal October 2009
X-ray analysis of ZnO nanoparticles by Williamson–Hall and size–strain plot methods journal January 2011
Porous single-crystalline CdS nanosheets as efficient visible light catalysts for aerobic oxidative coupling of amines to imines journal January 2013
Imines, enamines and oximes journal January 2000
Cyclohexane oxidation catalyzed by manganese oxide octahedral molecular sieves—Effect of acidity of the catalyst journal March 2009
On the Origin of the Cobalt Particle Size Effects in Fischer−Tropsch Catalysis journal April 2009
Redox Properties of CeO 2 at Low Temperature: The Direct Synthesis of Imines from Alcohol and Amine journal November 2014
Protocols for the Catalytic Oxidation of Primary Amines to Imines: Protocols for the Catalytic Oxidation of Primary Amines to Imines journal June 2013
Visible light mediated homo- and heterocoupling of benzyl alcohols and benzyl amines on polycrystalline cadmium sulfide journal January 2012
A general approach to crystalline and monomodal pore size mesoporous materials journal December 2013
Synthesis and photocatalytic activity of mesoporous TiO2 with the surface area, crystallite size, and pore size journal December 2007
Tandem catalysis: Direct catalytic synthesis of imines from alcohols using manganese octahedral molecular sieves journal January 2008
The generation of singlet oxygen by a lithium-tin-phosphorus catalyst journal August 1978
Singlet oxygen formation in photocatalytic TiO2 aqueous suspension journal January 2004
Electrochemical Alcohol Oxidation Mediated by TEMPO-like Nitroxyl Radicals journal January 2017
Preparation of cobalt oxide catalysts and their activity for CO oxidation at low concentration journal April 1977
Cobalt-Catalyzed Acceptorless Alcohol Dehydrogenation: Synthesis of Imines from Alcohols and Amines journal January 2013
Preparation of nanocrystalline metal oxide powders with the surfactant-mediated method journal October 2002
Non-precious Co3O4 nano-rod electrocatalyst for oxygenreduction reaction in anion-exchange membranefuelcells journal January 2012
Remarkable Effect of Pore Size on the Catalytic Activity of Mesoporous Silica for the Acetalization of Cyclohexanone with Methanol journal October 2003
Visible-Light-Driven Aerobic Oxidation of Amines to Nitriles over Hydrous Ruthenium Oxide Supported on TiO 2 journal November 2014
Synthesis and enhanced photoelectrocatalytic activity of p–n junction Co3O4/TiO2 nanotube arrays journal January 2013
One-pot synthesis of imines from alcohols and amines with TiO2 loading Pt nanoparticles under UV irradiation journal January 2011
Photoactive Zn–air batteries using spinel-type cobalt oxide as a bifunctional photocatalyst at the air cathode journal January 2019
Surface chemistry modulated introduction of multifunctionality within Co 3 O 4 nanocubes journal January 2015
Designed synthesis of mesoporous solids via nonionic-surfactant-templating approach journal January 2007
Probing Interfacial Electrochemistry on a Co 3 O 4 Water Oxidation Catalyst Using Lab-Based Ambient Pressure X-ray Photoelectron Spectroscopy journal December 2017
Facile synthesis of Co3O4 with different morphologies loaded on amine modified graphene and their application in supercapacitors journal November 2016
Rational Design of 1-D Co3O4 Nanofibers@Low content Graphene Composite Anode for High Performance Li-Ion Batteries journal March 2017
X-ray Absorption Spectroscopic Study of Brønsted, Lewis, and Redox Centers in Cobalt-Substituted Aluminum Phosphate Catalysts journal January 1996
Electronic Structure and Bonding in Co-Based Single and Mixed Valence Oxides: A Quantum Chemical Perspective journal March 2016
Correlation between catalytic activity and catalytic surface area of a Pt/Al2O3 DOC: An experimental and microkinetic modeling study journal September 2014
Selective Formation of Imines by Aerobic Photocatalytic Oxidation of Amines on TiO 2 journal March 2011
Meso- and macroporous coral-like Co3O4 for VOCs gas sensor journal November 2015
Highly efficient aerobic oxidation of various amines using Pd 3 Pb intermetallic compounds as catalysts journal January 2014
One-dimensional porous nanofibers of Co3O4 on the carbon matrix from human hair with superior lithium ion storage performance journal July 2015
Aerobic oxidation of amines to imines catalyzed by bulk gold powder and by alumina-supported gold journal November 2008
Green oxidations. The use of potassium permanganate supported on manganese dioxide journal December 2004
Catalytic Aerobic Dehydrogenation of Nitrogen Heterocycles Using Heterogeneous Cobalt Oxide Supported on Nitrogen-Doped Carbon journal September 2015
Novel three-dimensional Co3O4 dendritic superstructures: hydrothermal synthesis, formation mechanism and magnetic properties journal January 2013
Singlet Oxygen Generation by Cyclometalated Complexes and Applications journal December 2013
Conversion of electrodeposited Co(OH)2 to CoOOH and Co3O4, and comparison of their catalytic activity for the oxygen evolution reaction journal September 2014
Catalytic activity of mesoporous cobalt oxides with controlled porosity and crystallite sizes: Evaluation using the reduction of 4-nitrophenol journal December 2016
Convenient and clean synthesis of imines from primary benzylamines journal January 2010
Densities, Viscosities, and Relative Permittivities for Pentane + 1-Alcohols (C 1 to C 12 ) at 298.15 K journal March 1998
Advances in the Development of Novel Cobalt Fischer−Tropsch Catalysts for Synthesis of Long-Chain Hydrocarbons and Clean Fuels journal May 2007
One-Pot Synthesis of Imines and Secondary Amines by Pd-Catalyzed Coupling of Benzyl Alcohols and Primary Amines journal April 2009
Recent Advances in Aerobic Oxidation of Alcohols and Amines to Imines journal September 2015
Surface Structure Dependent Electrocatalytic Activity of Co3O4 Anchored on Graphene Sheets toward Oxygen Reduction Reaction journal July 2013
Metal-free aerobic oxidative coupling of amines to imines journal January 2011
The Role of Lattice Oxygen in Selective Benzyl Alcohol Oxidation Using OMS-2 Catalyst: A Kinetic and Isotope-Labeling Study journal August 2002
Structural insights into the mechanism of amine oxidation by monoamine oxidases A and B journal August 2007
Uncovering the Effect of Lattice Strain and Oxygen Deficiency on Electrocatalytic Activity of Perovskite Cobaltite Thin Films journal January 2019
EPR studies of copper(II) and cobalt(II) complexes of adriamycin journal June 1987
General, Green, and Scalable Synthesis of Imines from Alcohols and Amines by a Mild and Efficient Copper-Catalyzed Aerobic Oxidative Reaction in Open Air at Room Temperature journal September 2012
Influence of crystallite size on catalytic performance of HZSM-5 prepared by different methods in 2,7-dimethylnaphthalene isomerization journal October 1996
La0.1Ca0.9MnO3/Co3O4 for oxygen reduction and evolution reactions (ORER) in alkaline electrolyte journal January 2018
A General Aminocatalytic Method for the Synthesis of Aldimines journal January 2014
Characterization of Photo-Induced Charge Transfer and Hot Carrier Relaxation Pathways in Spinel Cobalt Oxide (Co 3 O 4 ) journal September 2014
Understanding Organic Reaction Mechanisms (Jacobs, Adam) journal February 1999
Supported Cobalt Oxide Nanoparticles As Catalyst for Aerobic Oxidation of Alcohols in Liquid Phase journal February 2011
Preparation and characterization of mesoporous silica supported cobalt oxide as a catalyst for the oxidation of cyclohexanol journal June 2012
A ball-milling strategy for the synthesis of benzothiazole, benzimidazole and benzoxazole derivatives under solvent-free conditions journal January 2014
Copper(0)-catalyzed aerobic oxidative synthesis of imines from amines under solvent-free conditions journal January 2012
A Review: Fundamental Aspects of Silicate Mesoporous Materials journal December 2012
Visible light-induced selective photocatalytic aerobic oxidation of amines into imines on Cu/graphene journal January 2015