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Paddock, R. L. & Nguyen, S. T. Chemical CO2 fixation: Cr(III) salen complexes as highly efficient catalysts for the coupling of CO2 and epoxides. J. Am. Chem. Soc. 123, 11498–11499 (2001). Acknowledgements Rashmi Gaur expresses her gratitude to the University Grant Commission, Delhi, India for the award of Senior Research Fellowship. Also, thanks are given to USIC-CLF, University of Delhi for providing instrumentation facility and Ondrej Tomanec for elemental mapping analysis. The authors acknowledge the support from the Ministry of Education, Youth and Sports of the Czech Republic (LO1305) and the assistance provided by the Research Infrastructure NanoEnviCz, supported by the Ministry of Education, Youth and Sports of the Czech Republic under Project No. LM2015073. Author Contributions R.G. and M.Y. planned the experiments, analysis, and collection of data. A.G. helped in writing and editing of manuscript. M.B.G., R.Z. and R.K.S. supervised the research, edited the manuscript and constructive comments. All authors have read and approved the final manuscript. Additional Information Supplementary information accompanies this paper at https://doi.org/10.1038/s41598-018-19551-3. Competing Interests: The authors declare that they have no competing interests. Publisher's note: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. SCientifiC RepoRts | (2018) 8:1901 | DOI:10.1038/s41598-018-19551-3 11PDF Image | copper-based magnetic nanocatalyst for the fixation of carbon dioxide
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