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Glimpses of 60 years of research in materials chemistry

Published online by Cambridge University Press:  09 March 2018

C.N.R. Rao
C.N.R. Rao*
Affiliation:
Jawaharlal Nehru Centre for Advanced Scientific Research, India; cnrrao@jncasr.ac.in
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Abstract

Materials chemistry was in its infancy when I started my independent research efforts in India after returning from the United States in the late 1950s. I have investigated phase transformations of TiO2 and CsCl, and also carried out defect calculations. While working on rare-earth oxides, I made TbO2 and PrO2 by a simple solution route; this is probably an early example of chimie douce (soft chemistry). I started working on transition-metal oxides by building simple instruments, including a thermobalance and furnaces. In 1987, we were able to fully characterize the first liquid N2 superconductor (YBa2Cu3O7) using a home-built AC susceptometer. Oxides have been of great interest to me because of the variety of phenomena exhibited by them. I have studied various aspects of transition-metal oxides, including metal-insulator transitions, colossal magnetoresistance, and multiferroics. The last two decades have included research on synthesis, characterization, and properties of various nanomaterials, and in particular, two-dimensional nanosheets (graphene and its inorganic analogues). Two-dimensional sheets and other nanomaterials have been covalently cross-linked to derive new materials with novel properties. Work on water splitting and reduction of CO2, besides using aliovalent anion substitution to generate novel inorganics (Zn2NF in place of ZnO), has also been conducted.

Keywords

chemical synthesismagnetoresistancemetal-insulator transitionsphase transformationssuperconducting
Type
Technical Feature
Information
MRS Bulletin , Volume 43 , Issue 3: Materials for Energy Harvesting , March 2018 , pp. 220 - 226
Copyright
Copyright © Materials Research Society 2018 

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Footnotes

The following article is based on the Von Hippel Award presentation given by C.N.R. Rao at the 2017 Materials Research Society Fall Meeting in Boston, Mass. Rao was recognized “for his immense interdisciplinary contributions to the development of novel functional materials, including magnetic and electronic properties of transition-metal oxides, nanomaterials such as fullerenes, graphene and two-dimensional inorganic solids, and superconductivity and colossal magnetoresistance in rare-earth cuprates and manganates.”

References

Rao, C.N.R., Gopalakrishnan, J., New Directions in Solid State Chemistry, 2nd ed. (Cambridge University Press, Cambridge, 1997).CrossRefGoogle Scholar
Rao, C.N.R., Biswas, K., Essentials of Inorganic Materials Synthesis (Wiley, New York, 2015).CrossRefGoogle Scholar
Czanderna, A., Rao, C.N.R., Honig, J.M., Trans. Faraday Soc. 54, 1069 (1958).CrossRefGoogle Scholar
Yoganarasimhan, S.R., Rao, C.N.R., Trans. Faraday Soc. 58, 1579 (1962).CrossRefGoogle Scholar
Rao, C.N.R., Yoganarasimhan, S.R., Faeth, P.A., Trans. Faraday Soc. 57, 504 (1961).CrossRefGoogle Scholar
Rao, K.J., Rao, G.V.S., Rao, C.N.R., Trans. Faraday Soc. 63, 1013 (1967).CrossRefGoogle Scholar
Rao, C.N.R., Rao, K.J., Phase Transitions in Solids (McGraw-Hill, New York, 1978).Google Scholar
Sastry, R.L.N., Mehrotra, P.N., Rao, C.N.R., J. Inorg. Nucl. Chem. 28, 2167 (1966).CrossRefGoogle Scholar
Goodenough, J.B., Prog. Solid State Chem. 5, 149 (1971).CrossRefGoogle Scholar
Rao, C.N.R., Rao, G.V.S., “Transition Metal Oxides” (NSRDS-NBS Monograph 49, Washington, DC, 1974).Google Scholar
Rao, C.N.R., Annu. Rev. Phys. Chem. 40, 291 (1989).CrossRefGoogle Scholar
Edwards, P.P., Ramakrishnan, T.V., Rao, C.N.R., J. Phys. Chem. 99, 5228 (1995).CrossRefGoogle Scholar
Rao, C.N.R., Raveau, B., Transition Metal Oxides, 2nd ed. (Wiley, Weinheim, 1998).Google Scholar
Wu, J., Leighton, C., Phys. Rev. B 67, 174408 (2003).CrossRefGoogle Scholar
Bhide, V.G., Rajoria, D.S., Rao, C.N.R., Rao, G.R., Jadhao, V.G., Phys. Rev. B Condens. Matter 12, 2832 (1975).CrossRefGoogle Scholar
Ganguly, P., Rao, C.N.R., Mater. Res. Bull. 8, 405 (1973).CrossRefGoogle Scholar
Ganguly, P., Rao, C.N.R., J. Solid State Chem. 53, 193 (1984).CrossRefGoogle Scholar
Rao, C.N.R., Ganguly, P., Raychaudhuri, A.K., Ram, R.A.M., Sreedhar, K., Nature 326, 856 (1987).CrossRefGoogle Scholar
Rao, C.N.R., Ganguli, A.K., Chem. Soc. Rev. 24, 1 (1995).CrossRefGoogle Scholar
Rao, C.N.R., Ed., Chemistry of Higher Temperature Superconductors (World Scientific, Singapore, 1991).CrossRefGoogle Scholar
Rao, C.N.R., Raveau, B., Eds., Colossal Magnetoresistance, Charge-Ordering and Related Aspects of Manganese Oxides (World Scientific, Singapore, 1998).CrossRefGoogle Scholar
Rao, C.N.R., J. Phys. Chem. B 104, 5877 (2000).CrossRefGoogle Scholar
Shenoy, V.B., Rao, C.N.R., Philos. Trans. R. Soc. Lond. A 366, 63 (2008).CrossRefGoogle Scholar
Goodenough, J.B., Phys. Rev. 100, 564 (1955).CrossRefGoogle Scholar
Woodward, P.M., Cox, D.E., Vogt, T., Rao, C.N.R., Cheetham, A.K., Chem. Mater. 11, 3528 (1999).CrossRefGoogle Scholar
Rao, C.N.R., Sundaresan, A., Saha, R., J. Phys. Chem. Lett. 3, 2237 (2012).CrossRefGoogle Scholar
Ramesha, K., Llobet, A., Proffen, Th., Serrao, C.R., Rao, C.N.R., J. Phys. Condens. Matter 19, 102202 (2007).CrossRefGoogle Scholar
Eggeman, A.S., Sundaresan, A., Rao, C.N.R., Midgley, P., J. Mater. Chem. 21, 15417 (2011).CrossRefGoogle Scholar
Cheetham, A.K., Rao, C.N.R., Science 318, 58 (2007).CrossRefGoogle ScholarPubMed
Rao, C.N.R., Natarajan, S., Choudhury, A., Neeraj, S., Ayi, A.A., Acc. Chem. Res. 34, 80 (2001).CrossRefGoogle Scholar
Murugavel, R., Choudhury, A., Walawalkar, M.G., Pothiraja, R., Rao, C.N.R., Chem. Rev. 108, 3549 (2008).CrossRefGoogle Scholar
Rao, C.N.R., Natarajan, S., Vaidhyanathan, R., Angew. Chem. Int. Ed. Engl. 43, 1466 (2004).CrossRefGoogle Scholar
Rao, C.N.R., Behera, J.N., Dan, M., Chem. Soc. Rev. 35, 375 (2006).CrossRefGoogle Scholar
Cheetham, A.K., Rao, C.N.R., Feller, R.K., Chem. Commun. 4780 (2006), doi:10.1039/B610264F.Google Scholar
Lingampalli, S.R., Manjunath, K., Shenoy, U.S., Waghmare, U.V., Rao, C.N.R., J. Am. Chem. Soc. 138, 8228 (2016).CrossRefGoogle Scholar
Rao, C.N.R., J. Phys. Chem. Lett. 6, 3303 (2015).CrossRefGoogle Scholar
Rao, C.N.R., Vijayakrishnan, V., Sarma, D.D., Chainani, A., Faraday Discuss. 92, 147 (1991).CrossRefGoogle Scholar
Vijayakrishnan, V., Chainani, A., Sarma, D.D., Rao, C.N.R., J. Phys. Chem. 96, 8679 (1992).CrossRefGoogle Scholar
Rao, C.N.R., Kulkarni, G.U., Thomas, P.J., Edwards, P.P., Chem. Soc. Rev. 29, 27 (2004).CrossRefGoogle Scholar
Rao, C.N.R., Seshadri, R., MRS Bull. 19, 28 (1994).CrossRefGoogle Scholar
Chandrabhas, N., Sood, A.K., Muthu, D.V.S., Rao, C.N.R., Phys. Rev. Lett. 73, 3411 (1994).CrossRefGoogle Scholar
Rao, C.N.R., Govindaraj, A., Nanotubes and Nanowires, 2nd ed. (Royal Society of Chemistry, London, 2007).Google Scholar
Rao, C.N.R., Govindaraj, A., Adv. Mater. 21, 4208 (2009).CrossRefGoogle Scholar
Rao, C.N.R., Matte, H.S.S.R., Voggu, R., Govindaraj, A., Dalton Trans. 41, 5089 (2012).CrossRefGoogle Scholar
Rao, C.N.R., Deepak, F.L., Gundiah, G., Govindaraj, A., Prog. Solid State Chem. 31, 5 (2003).CrossRefGoogle Scholar
Biswas, K., Rao, C.N.R., J. Phys. Chem. B 110, 842 (2006).CrossRefGoogle Scholar
Rao, C.N.R., Kalyanikutty, K.P., Acc. Chem. Res. 41, 489 (2008).CrossRefGoogle Scholar
Panchakarla, L.S., Subrahmanyam, K.S., Saha, S.K., Govindaraj, A., Krishnamurthy, H.R., Waghmare, U.V., Rao, C.N.R., Adv. Mater. 21, 4726 (2009).Google Scholar
Voggu, R., Govindaraj, A., Rao, C.N.R., Nanoscale 1, 96 (2009).Google Scholar
Voggu, R., Rao, K.V., George, S.J., Rao, C.N.R., J. Am. Chem. Soc. 132, 5560 (2010).CrossRefGoogle Scholar
Rao, C.N.R., Voggu, R., Mater. Today 13, 34 (2010).CrossRefGoogle Scholar
Sundaresan, A., Rao, C.N.R., Nano Today 4, 96 (2009).CrossRefGoogle Scholar
Rao, C.N.R., Sood, A.K., Subrahmanyam, K.S., Govindaraj, A., Angew. Chem. Int. Ed. 48, 7752 (2009).CrossRefGoogle Scholar
Rao, C.N.R., Sood, A.K., Eds., Graphene: Synthesis, Properties and Phenomena (Wiley, Weinheim, 2013).Google Scholar
Rao, C.N.R., Waghmare, U.V., Eds., 2D Inorganic Materials Beyond Graphene (World Scientific, Singapore, 2017).CrossRefGoogle Scholar
Rao, C.N.R., Maitra, U., Annu. Rev. Mater. Res. 45, 29 (2015).CrossRefGoogle Scholar
Rao, C.N.R., Maitra, U., Waghmare, U.V., Chem. Phys. Lett. 609, 172 (2014).CrossRefGoogle Scholar
Rao, C.N.R., Gopalakrishnan, K., Maitra, U., ACS Appl. Mater. Interfaces 7, 7809 (2015).CrossRefGoogle Scholar
Late, D.J., Liu, B., Matte, H.S.S.R., Dravid, V.P., Rao, C.N.R., ACS Nano, 6, 5635 (2012).CrossRefGoogle Scholar
Vishnoi, P., Rajesh, S., Manjunatha, S., Bandyopadhyay, A., Barua, M., Pati, S.K., Rao, C.N.R., Chemphyschem, 18, 2985 (2017).CrossRefGoogle Scholar
Vishnoi, P., Sampath, A., Waghmare, U.V., Rao, C.N.R., Chem Eur. J. 23, 886 (2017).CrossRefGoogle Scholar
Rao, C.N.R., Gopalakrishnan, K., ACS Appl. Mater. Interfaces 9, 19478 (2017).CrossRefGoogle Scholar
Rao, C.N.R., Pramoda, K., Kumar, R., Chem. Commun. 53, 10093 (2017).CrossRefGoogle Scholar
Pramoda, K., Gupta, U., Chhetri, M., Bandyopadhyay, A., Pati, S.K., Rao, C.N.R., ACS Appl. Mater. Interfaces, 9, 10664 (2017).CrossRefGoogle Scholar
Pramoda, K., Ayyub, M.M., Singh, N.K., Chhetri, M., Gupta, U., Soni, A., Rao, C.N.R., J. Phys. Chem. C, doi:10.1021/acs.jpcc.7b10782.CrossRefGoogle Scholar
Rao, C.N.R., Lingampalli, S.R., Dey, S., Roy, A., Philos. Trans. R. Soc. Lond. A 374, 2060088 (2016).CrossRefGoogle Scholar
Rao, C.N.R., Dey, S., Proc. Natl. Acad. Sci. U.S.A. 114, 13385 (2017).CrossRefGoogle Scholar
Chhetri, M., Sultan, S., Rao, C.N.R., Proc. Natl. Acad. Sci. U.S.A. 114, 8986 (2017).CrossRefGoogle Scholar