Fe3O4 (iron oxide)-supported nanocatalysts: synthesis, characterization and applications in coupling reactions
The use of magnetic nanoparticles as a solid support material for the development of magnetically retrievable catalytic systems has led to a dramatic expansion of their potential applications as they enable environmentally-friendly and sustainable catalytic processes. These quasi-homogeneous catalys...
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| Main Authors | , , , , , |
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| Format | Journal Article |
| Published |
2016
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| Online Access | Get full text |
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| Summary: | The use of magnetic nanoparticles as a solid support material for the development of magnetically retrievable catalytic systems has led to a dramatic expansion of their potential applications as they enable environmentally-friendly and sustainable catalytic processes. These quasi-homogeneous catalysts possess numerous benefits such as ease of isolation and separation from the desired reaction mixtures using an external magnet and excellent recyclability. Consequently, much effort has been directed towards the synthesis of magnetically isolable nano-sized particles by developing methods such as co-precipitation, thermal decomposition, microemulsion, hydrothermal techniques
etc
. Further, in order to render them suitable for catalytic applications, several protection strategies such as surfactant/polymer, silica and carbon coating of magnetic nanoparticles or embedding them in a matrix/support have been reported in the literature. This review focuses on the substantial progress made in the fabrication of nanostructured catalysts with special emphasis on the protection and functionalization of the magnetite nanoparticles (Fe
3
O
4
). Finally, considering the importance of coupling chemistry in the field of organic synthesis, a broad overview of the applications of these magnetite nanoparticle-based catalysts in several types of coupling reactions has been presented. The future of catalysis lies in the rational design and development of novel, highly active and recyclable nanocomposite catalysts which would eventually pave the pathway for the establishment of green and sustainable technologies.
Fabrication of functionalized magnetite nanocomposites and their applications as catalysts for coupling reactions. |
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| Bibliography: | etc Sriparna Dutta was born in India in the year, 1990. She received her B.Sc. (Hons.) degree in 2011 and M.Sc. degree (Inorganic specialization) in 2013 from the University of Delhi (D.U.), India (Sri Venkateswara College). She is currently pursuing her doctoral studies under the supervision of Professor R. K. Sharma and is an active member of the Green Chemistry Network Centre (GCNC). Her research efforts are directed towards the fabrication of magnetic silica based nano-catalysts and their use in various organic transformations. She is a recipient of the Prof. K.N. Johri Memorial Gold Medal (awarded by D.U. for being the university topper with inorganic specialization). Radek Zboril received his PhD degree at the Palacky University in Olomouc, Czech Republic. After his doctoral studies, he spent a lot of time at universities around the world in locations such as Tokyo, Delaware, and Johannesburg. Currently, he is a professor at the Department of Physical Chemistry and a General Director of the Regional Centre of Advanced Technologies and Materials at the Palacky University in Olomouc, Czech Republic. His research interests focus on nanomaterial research including iron- and iron oxide-based nanoparticles, silver nanoparticles, carbon nanostructures, and magnetic nanoparticles, including their synthesis, physicochemical characterization, and applications in catalysis, water treatment, antimicrobial treatment, medicine, and biotechnology. Dr Manoj B. Gawande received his Ph.D. degree in Chemistry in 2008 from the Department of Chemistry, Institute of Chemical Technology (formerly UDCT), Matunga, Mumbai, India, with Prof. R.V. Jayaram. After several research stints in Germany, South Korea, Portugal, Singapore, and England, recently, he worked as a Visiting Professor/Scientist with Prof. Dunwei Wang, Boston, College, Boston, USA and Prof. Rajender S. Varma at EPA, Cincinnati, USA. Presently, he is working as a Senior Researcher and Head of the Nanocatalysis Research Laboratories at RCPTM, Faculty of Science, Palacky University, Olomouc, Czech Republic. His research interests include nanocatalysis, advanced nanomaterials and their applications. He has published more than 75 scientific papers, including reviews, patents, and editorials. Shivani Sharma (born 1988) obtained her B.Sc. (Hons.) degree in 2008 and M.Sc. degree (specialization in Inorganic Chemistry) in 2010 from the University of Delhi, India. She then joined the "Green Chemistry Network Centre" as a Research Scholar under the guidance of Professor R. K. Sharma. Her research work is based on the design and development of silica based organic-inorganic hybrid nanomaterials and their applications in the field of sensors and catalysis. She has authored several publications in prestigious journals of the Royal Society of Chemistry (RSC). Dr R. K. Sharma is a professor and co-ordinator of the Green Chemistry Network Centre (GCNC) at the Department of Chemistry, University of Delhi (D.U.), India. He obtained his doctoral degree from D.U. in the year, 1986. Thereafter, he went to the University of Tokyo and Kumamoto University and worked on metal-bimolecular interactions on a JSPS Post-Doctoral Fellowship. His research interests focus on the development of metal selective functionalized silica gels for their applications as scavengers, sensors and catalysts, designing of novel metal-chelating inhibitors of transcription factor NF-κB-DNA binding, chemical speciation, molecular modelling studies He has published numerous book chapters, reviews and research articles in renowned international journals. Besides, he has been acknowledged worldwide for his sincere efforts in bringing about a major reformation in the scientific community by promoting and popularizing Green Chemistry. He is also the Honorary Secretary of the RSC (North India Section) and in charge of an International Chapter of ACS-GCI. Prof. Rajender S. Varma was born in India (Ph.D., Delhi University 1976). After postdoctoral research at the Robert Robinson Laboratories, Liverpool, UK, he was faculty member at the Baylor College of Medicine and the Sam Houston State University prior to joining the Sustainable Technology Division at the US Environmental Protection Agency in 1999. He has over 40 years of research experience in the management of multi-disciplinary technical programs and is extensively involved in sustainable aspects of chemistry that includes development of environmentally benign synthetic methods using alternative energy input using microwaves, ultrasound and mechanochemistry and efficient technologies for the sustainable remediation of contaminants, and environmental sciences. Lately, he has focused on greener approaches to the assembly of nanomaterials and sustainable applications of magnetically retrievable nano-catalysts in benign media. He is a member of the editorial advisory board of several international journals and has published over 435 scientific papers and has been awarded 15 US Patents. |
| ISSN: | 1463-9262 1463-9270 |
| DOI: | 10.1039/c6gc00864j |