Dr K. RAMESHA
Senior Principal Scientist & Scientist-in-charge
- CECRI Madras Unit, CSIR Madras Complex, Taramani, Chennai – 600 113
- 91-44-2254-4560 (Work)
- Academic Background
- Professional Background
- Areas of Scientific Interest
- Research Project
2000 - Ph.D., Solid State & Structural Chemistry Unit, Indian Institute of Science, Bangalore.
Ph. D. Thesis Title: Synthesis and Investigation of Transition Metal Oxides Towards Realization of Novel Materials PropertiesPh.D
1993 - M.Sc., Chemistry, Mangalore University, Mangalore.
1991 - B.Sc., (Chemistry, Physics, Mathematics), Mangalore University, Mangalore.
- Dec 2012-till date, Principal Scientist, CECRI Madras Unit, CSIR Madras Complex, Chennai, & Associate Professor – Academy of Scientific and Innovative Research (AcSIR)
- Dec 2009-Dec 2012, Senior Scientist, CECRI Madras Unit, CSIR Madras Complex, Chennai, & Assistant Professor – Academy of Scientific and Innovative Research AcSIR)
- July 2008 – Dec 2009, Quick Hire Scientist, CSIR-Central Electrochemical Research institute
- Feb 2007 - July 2008, Fellow, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore
- Dec 2004 - Dec 2006, Postdoctoral Fellow, Los Alamos Neutron Science Center (LANSCE-12), Los Alamos National Laboratory, Los Alamos, USA.
- Nov 2002 – Dec 2004, Postdoctoral Fellow, Materials Department, University of California, Santa Barbara, CA, USA.
- March 2001 - Nov 2002, Postdoctoral Fellow, Department of Chemistry & Biochemistry, University of Maryland, College Park, MD, USA.
Ph.D. Students: completed Laisa C.P., Bosubabu, D
Current Students doing Ph.D.
Gurunathan P, Ramesha R.N., Masthaniah Ette
Areas of Scientific Interest
- Materials for energy storage, Li-ion batteries, Na-ion batteries, Li-S batteries, All Solid State Batteries.
Sept 2015-Apr 2018
Development of Solid State Battery
Aug 2018 to Aug. 2020
Development and demonstration of rechargeable Li-S batteries for lighting and consumer electronics applications
Sept. 2018 to
Interface modification of Lithium Garnets for all solid state Lithium Batteries
A. Gupta, P. Gurunathan, K. Ramesha, M. Singh, S. Dhakate, Effect of heat treatment temperature on energy storage performance of PAN co-MMA based carbon nanofibers as free standing LIB anode, Energy Storage (accepted) 2019.
D. Bosu Babu, R.N. Ramesha, P. Ette, A.K. N. Kumar, A. Arulraj, K. Ramesha, Synthesis and investigation of electrochemical performance of mixed valent Li4FeMoO6 as positive electrode material in rechargeable lithium ion batteries, J. Power Sources 436, 226870 (2019).
P.M. Ette, D. Bosu Babu, M. L. Roy, K. Ramesha, Mo3Nb2O14: A high-rate intercalation electrode material for Li-ion batteries with liquid and garnet based hybrid solid electrolytes, J. Power Sources, 436, 226850 (2019).
D. Bosubabu, J. Sivaraj, R. Sampathkumar, K.Ramesha, LAGP│Li interface modification through wetted polypropylene interlayer for solid state Li-ion and Li-S batteries, ACS Applied Energy Materials 6, 4118-4125 (2019).
D.Bosu Babu, K. Ramesha, Melamine assisted liquid exfoliation approach for the synthesis of
nitrogen doped graphene-like carbon nano sheets from bio-waste bagasse material and its application towards high areal density Li-S batteries, Carbon 144 582-590 (2019).
P.M. Ette, K. Selvakumar, S. M. Senthil Kumar, K. Ramesha, Ordered 1D and 3D mesoporous Co3O4 structures: Effect of morphology on Li-ion storage and high rate performance, Electrochimica Acta 310, 184-194 (2019).
G. Angamuthu, D. Bosu Babu, K. Ramesha, V. Rangarajan, MoS2 anchored Carbon Nitride based mesoporous material as a polysulfide barrier for high capacity Lithium-Sulfur Battery, J. Electroanalytical Chemistry, 843, 37-46 (2019).
E. Granado, J. C. Cezar, C. Azimonte, J. Gopalakrishnan, K. Ramesha, Electronic structure of Fe and magnetism in the 3d/5d double perovskites Ca2FeReO6 and Ba2FeReO6, Physical Review B 99, 195118 (2019).
R. Kumar, T. Dey, P. M. Ette, K. Ramesha, A. Chakraborty, I. Dasgupta, J. C. Orain, C. Baines, S. Tóth, A. Shahee, S. Kundu, M. Prinz-Zwick, A. A. Gippius, N. Büttgen, P. Gegenwart, and A. V. Mahajan. Unconventional magnetism in the 4d4-based S=1 honeycomb system Ag3LiRu2O6, Physical Review B 99, 054417 (2019).
R. Kumar, T. Dey, P. M. Ette, K. Ramesha, A. Chakraborty, I. Dasgupta, R. Eremina, S. Tóth, A. Shahee, S. Kundu, M. Prinz-Zwick, A. A. Gippius, H. A. Krug von Nidda, N. Büttgen, P. Gegenwart, and A. V. Mahajan. Structural, thermodynamic, and local probe investigations of the honeycomb material Ag3LiMn2O6, Phys. Rev. B, 99, 144429 (2019).
P.M. Ette, K. Selvakumar, S. M. Senthil Kumar, K. Ramesha Silica template assisted synthesis of ordered mesoporous β–MnO2 nanostructures and their performance evaluation as negative electrode in Li-ion batteries, Electrochimica Acta 292, 532-539 (2018).
C. A. Escanhoela, Jr., G. Fabbris, F. Sun, C. Park, J. Gopalakrishnan, K. Ramesha, E. Granado, N. M. Souza-Neto, M. van Veenendaal, and D. Haskel, Tuning magnetic coercivity with external pressure in iron-rhenium based ferrimagnetic double perovskites, Phys. Rev. B 98, 054402 (2018).
Bosu Babu Dasari, K. Giribabu, K. Ramesha, Perm selective SPEEK/Nafion composite coated separator as potential polysulfide cross-over barrier layer for Li-S batteries, Applied Materials & Interfaces 10, 19721-19729 (2018).
P. Gurunathan, P.M. Ette, N. Lakshminarasimhan, K. Ramesha, A convenient synthesis route for Co3O4 hollow microspheres and their application as high performing anode in Li-ion batteries, ACS Omega, 2, 7647-7857 (2017).
C.P. Laisa , R.N. Ramesha , K. Ramesha, Enhanced electrochemical performance of lithium rich layered cathode materials by Ca2+ substitution, Electrochimica Acta 256, 10–18 (2017).
R.N. Ramesha, C.P. Laisa, K. Ramesha. Improving Electrochemical Stability by Transition Metal Cation Doping for Manganese in Lithium-rich Layered Cathode, Li1.2Ni 0.13Co0.13Mn 0.54- xMxO2 (M = Co, Cr and Fe), Electrochimica Acta 249, 377–386 (2017).
A.Chaudhary, S. Teotia, R. Kumar, K. Ramesha, S.R. Dhakate, S. Kumari, Engineering novel synthetic strategy to develop mesocarbon microbeads for multi-functional applications, Materials Science Express, 5, 2018
E. Duraisamy, P. Gurunathan, Himadri T. Das, K. Ramesha, P. Elumalai, [Co(salen)] derived Co/Co3O4 nanoparticle@carbon matrix as high performance electrode for energy storage applications, Journal of Power Sources 344, 103-110 (2017)
Ashish Gupta, Sanjay R. Dhakate, P. Gurunathan, K. Ramesha High rate capability and cyclic stability of hierarchically porous Tin oxide (IV)–carbon nanofibers as anode in lithium ion batteries, Appl Nanosci 7, 449–462 (2017).
Bosu Babu Dasari, K. Ramesha, Constraining polyselenide formation in ether based electrolytes through confinement of Se in microporous carbon matrix for Li-Se batteries,
Electrochemica Acta, 219, 295-304 (2016).
C.P. Laisa, A.K. Nanda Kumar, S. Selva Chandrasekaran, P. Murugan , N. Lakshminarasimhan, R. Govindaraj, K. Ramesha, A comparative study on electrochemical cycling stability of lithium rich layered cathode materials Li1.2Ni0.13M0.13Mn0.54O2 where M = Fe or Co, Journal of Power Sources, 324, 462-474 (2016).
P. R. Sobana, K. Ramesha, State of health monitoring of Li-ion batteries using dynamic resistance mapping and regression, CSI Transaction 4: 23 (2016).
M. Jayakumar, K. Hemalatha, K. Ramesha and A. S. Prakash, Framework structured Na4Mn4Ti5O18 as an electrode for Na-ion storage devices, Phys.Chem. Chem. Phys. 17, 20733-20740 (2015)
E. McCalla, M.T. Sougrati, G. Rousse, E J. Berg, A. Abakumov, N. Recham, K. Ramesha, M. Sathiya, R. Dominko, G.V. Tendeloo, P. Novák, J-M. Tarascon, Understanding the Roles of Anionic Redox and Oxygen Release during Electrochemical Cycling of Lithium-Rich Layered Li4FeSbO6, Journal of the American Chemical Society, 137, 4804-4814 (2015)
M. Sathiya, A. M. Abakumov, D. Foix. G. Rousse,, K. Ramesha, D. Gonbeau,M. Saubanère, M. L. Doublet, H. Vezin, C. P. Laisa, A. S. Prakash, G. VanTendeloo and J-M. Tarascon, “Origin of voltage decay in high-capacity layered oxide electrodes”, NATURE MATERIALS, 14, 230-238 (2015).
Pedda Masthanaiah Ette, P. Gurunathan, K. Ramesha, Self-assembled lamellar alpha-molybdenum trioxide as high performing anode material for lithium-ion batteries, J. Power Sources, 278, 630-638 (2015).
Gurunathan, Pedda Masthanaiah and K. Ramesha, “Synthesis of hierarchically porous SnO2 microspheres and performance evaluation as anode material using different binders”, ACS Applied Materials and Interfaces, 6 (19), 16556-16564 (2014).
K. Hemalatha K, Pedda Masthnaiah, Giridhar Madras, K. Ramesha, “Visible light assisted photocatalytic degradation of organic dyes on TiO2-CNT nanocomposites”, Journal of Sol-gel Science and Technology , 73:72-82 (2015).
Sathiya, M., Ramesha, K., Rousse, G., Foix, D., Gonbeau, D., Guruprakash, K., Prakash, A.S., Doublet, M.L., Tarascon, J.-M., “Li4NiTeO6 as a positive electrode for Li-ion batteries” Chemical Communications, 49 (97), pp. 11376-11378. (2013).
Sathiya, M., Rousse, G., Ramesha, K., Laisa, C.P., Vezin, H., Sougrati, M.T., Doublet, M.-L., Foix, D., Gonbeau, D., Walker, W., Prakash, A.S., Ben Hassine, M., Dupont, L., Tarascon, J.-M., “Reversible anionic redox chemistry in high-capacity layered-oxide electrodes”, NATURE MATERIALS, 12 (9), pp. 827-835 (2013).
M. Sathiya, K. Ramesha, M. Sathiya, G. Rousse,D. Foix D. Gonbeau, A. S. Prakash,M. L. Doublet,K. Hemalatha,and J.-M. Tarascon, “High Performance Li2Ru1−yMnyO3 (0.2 ≤ y ≤ 0.8) Cathode Materials for Rechargeable Lithium-Ion Batteries: Their Understanding” , Chemistry of Materials, 25, 1121-1131 (2013)
M. Sathiya, K. Hemalatha, K. Ramesha, J.-M. Tarascon, and A. S. Prakash, ”Synthesis, structure, and electrochemical properties of the layered sodium insertion cathode material: NaNi⅓Mn⅓Co⅓⅓O2”, Chem. Mater, (2012).
A.F. Garcı´a-Flores, A. F. L. Moreira, U. F. Kaneko, F. M. Ardito, H. Terashita, M. T. D. Orlando, J. Gopalakrishnan,K. Ramesha,and E. Granado Spin-electron-phonon excitation in Re-based half-metallic double perovskites Phys Rev Lett 108, 177202 (2012).
M. Sathiya, A. S. Prakash, K. Ramesha, J.-M. Tarascon, and A. K. Shukla, “V2O5-anchored carbon nanotubes for enhanced electrochemical energy Storage, Journal of American Chemical Society, 133, 16291-16299 (2011).
K. Ramesha, A.S. Prakash, M. Sathia, M. G. Nandini, M. Giridhar, A.K. Shukla “Synthesis and photocatalytic properties of Ag[Li1/3Ru2/3]O2: a new delafossite oxide” Mater. Sci & Eng. B. 176, 141-146 (2011).
R. Ramachandran, M. Sathiya, K. Ramesha, A.S. Prakash, G. Madras and A.K. Shukla, Photocatalytic properties of KBiO3 and LiBiO3 with tunnel structures, J. Chemical Sciences 123, 517-524 (2011).
K. Ramesha, A. S. Prakash, M. Sathiya, G. Madras and A. K. Shukla, Synthesis of new (Bi,La)3MSb2O11 phases (M = Cr, Mn, Fe) with KSbO3-type structure and their magnetic and photocatalytic properties, Bull. Mat. Sci. 34, 271-277 (2011).
M. Sathiya, A.S. Prakash, K. Ramesha and A.K. Shukla, Nitrate-melt synthesized LiNi0.8Co0.2O2 as improvised-cathode material for lithium-ion batteries, Accepted, Bull. Mater. Res (2011).
R.B. Khomane, A.S. Prakash, K. Ramesha and M. Sathiya, CTAB-assisted sol-gel synthesis of Li4Ti5O12 and its performance as anode material for Li-ion batteries, Mater. Res. Bull., 46, 1139-1142 (2011).
A. S. Prakash, P. Manikandan, K. Ramesha, M. Sathiya, J-M. Tarascon, and A. K. Shukla, Solution-Combustion Synthesized Nanocrystalline Li4Ti5O12 As High-Rate Performance Li-ion Battery Anode, Chemistry of Materials, 22, pp 2857-2863 (2010).
M. Sathiya, A. S. Prakash, K. Ramesha and A. K. Shukla, Nitrate-melt synthesized HT-LiCoO2 as a superior cathode material for Li-ion batteries, Materials 2, 857 (2009).
M. Sathiya, A.S. Prakash, K. Ramesha and A. K. Shukla, Rapid synthetic routes to prepare LiNi1/3Mn1/3Co1/3O2 as a high voltage, high-capacity Li-ion battery cathode material, Mater. Res. Bull., 44, 1990 (2009).
K. Ramesha and A.S. Prakash, Synthesis and investigation of magneto-dielectric effect in A2FeW0.5Mn0.5O6 (A = Ca, Sr, Ba) double perovskites, Materials Science & Eng. B, 164, 124 (2009).
C.R. Serrao, J.R. Sahu, K. Ramesha and C.N.R. Rao, Magnetoelectric effect in rare-earth ferrites, LnFe2O4 , J. Appl. Phys., 104, 016102 (2008).
K. Ramesha, A. Llobet, Th. Proffen and C.N.R. Rao, Observation of local non-centrosymmetry in weakly biferroic YCrO3, J. Phys. Cond. Matter., 19, 102202 (2007).
C. Azimonte, J.C. Cezar, E.Granado, Q. Huang, J.W. Lynn, J.C.P. Campoy, J. Gopalakrishnan and K. Ramesha, Incipient orbital order in half-metallic Ba2FeReO6, Phys. Rev. Lett. 98, 017204 (2007).
C. Azimonte, E. Granado, J.C. Cezar, J. Gopalakrishnan and K. Ramesha, Investigation of the local Fe magnetic moments at the grain boundaries of the Ca2FeReO6 double perovskite, J. Appl. Phys., 101, 09H115 (2007).
C. Stoltz, K. Ramesha, P. Piccoli, B.H. Toby and B. W. Eichhorn, A0.3ZrNF1.3 phases (A = Na, K) with layered ZrNCl type structures by anion metathesis, Chem. Mater. 17, 5291(2005).
A.K. Kundu, M.M. Seikh, K. Ramesha and C.N.R. Rao, Novel effects of size disorder on the electronic and magnetic properties of rare earth manganates of the type La0.7-xLnxBa0.3MnO3 (Ln = Pr, Nd, Gd or Dy) with large average radius of the A-site cations, J. Phys. Cond. Matter., 17, 4171 (2005).
K. Ramesha, R. Seshadri, C. Ederer, T. He and M.A. Subramanian, An experimental and computational investigation of structure and magnetism in pyrite Co1-xFexS2 :Chemical bonding and half-metallicity, Phys. Rev. B, 70, 214409 (2004).
A K. Kundu, K. Ramesha, R. Seshadri and C. N. R. Rao, Magnetic and electron transport properties of La0.7-xLnxCa0.3CoO3 (Ln = Pr, Nd, Gd and Dy): A case of phase separation, J. Phys. Cond. Matter., 16, 7955 (2004).
E. Granado, Q. Huang, J. W. Lynn, J. Gopalakrishnan and K. Ramesha, Crystal structures and magnetic order of La0.5A0.5Mn0.5Ru0.5O3 (A = Ca, Sr, Ba): Possible orbital glass ferromagnetic state, Phys. Rev. B, 70, 214416 (2004).
K. Ramesha and R. Seshadri, Solvothermal preparation of ferromagnetic sub-micron spinel CuCr2Se4 particles, Solid State Sciences, 6, 841 (2004).
E. Toberer, J. C. Weaver, K. Ramesha and R. Seshadri, Macroporous monoliths of functional perovskite materials through assisted metathesis, Chem. Mater., 16, 2194 (2004).
T. Sivakumar, K. Ramesha, S. E. Lofland, K. V. Ramanujachary, G. N. Subbanna and J. Gopalakrishnan, 2D-3D transformation of layered perovskites through metathesis: synthesis of new quadruple perovskites, A2La2CuTi3O12 ( A = Sr, Ca), Inorg. Chem. 43, 1857 (2004).
T. Sivakumar, S.E. Lofland, K. V. Ramanujachary, K. Ramesha, G. N. Subbanna and J. Gopalakrishnan, Transforming n =1 members of the Ruddlesden-Popper phases to a n = 3 member through metathesis: synthesis of a new layered perovskite, Ca2La2CuTi2O10, J. Solid State Chem., 177, 2635 (2004).
R. Sharma, T. K. Mandal, K. Ramesha and J. Gopalakrishnan, Chimie douce synthesis of AgBiO3: a new KSbO3 derivative with a tunnel structure, Ind. J. Chem. Sect A., 43, 11 (2004).
C. Stoltz, K. Ramesha, S. A. Sirchio, Z. S. Gonen, B. W. Eichhorn, L. Salamanca-Riba and J. Gopalakrishnan, Topochemical anion metathesis routes to the Zr2N2S phases and the Na2S and ACl derivatives (A = Na, K, Rb), J. Am. Chem. Soc., 125, 4285 (2003).
K. Ramesha, L. Sebastian, B. Eichhorn and J. Gopalakrishnan, Perovskite and pyrochlore modifications of Pb2MnReO6 : Synthesis, structure and electronic properties, Chem. Mater., 15, 668 (2003).
K. Ramesha, L. Sebastian, B. W. Eichhorn and J. Gopalakrishnan, Pb2FeReO6: new defect pyrochlore oxide with a geometrically frustrated Fe/Re sublattice, J. Mater. Chem., 13, 2011 (2003).
E. Granado, Q. Huang, J. W. Lynn, J. Gopalakrishnan, R. L. Greene and K. Ramesha, Spin-orbital ordering and mesoscopic phase separation in the double perovskite Ca2FeReO6, Phys. Rev. B., 66, 0644091 (2002).
S. E. Lofland, T. Scabarozi, S. Kale, S. M. Bhagat, S. B. Ogale, T. Venkatesan, R. L. Green, J. Gopalakrishnan and K. Ramesha, Ferromagnetic resonance and magnetization studies on ferrimagnetic double perovskites A2FeReO6 (A = Ca, Sr, Ba), IEEE Trans. Magnetics, 37, 2153 (2001).
K. Ramesha, J. Gopalakrishnan, V. Smolyaninova and R. L. Greene, ALaFeVO6 (A = Ca, Sr): new double perovskite oxides, J. Solid State Chem., 162, 250 (2001).
K. Ramesha and J. Gopalakrishnan, Chimie douce synthesis of a new nonlinear optical material: Ba1.5VOSi2O7, Solid State Sciences, 3, 113 (2001).
A. Arulraj, K. Ramesha, J. Gopalakrishnan and C. N. R. Rao, Magnetoresistance in the double perovskite Sr2CrMoO6, J. Solid State Chem., 155 , 233 (2000).
S. Kale, S. E. Lofland, S.M. Bhagat, L. Sebastian, K. Ramesha, J. Gopalakrishnan, S. B. Ogale, Y. H. Li and J. Garrison, Giant magnetoimpedance near a metal-insulator transition: study of Fe in a V2O3 matrix, Appl. Phys. Lett., 77, 2725-2727 (2000).
W. Prellier, V. Smolyaninova, A. Biswas, C. Galley, R. L. Greene, K. Ramesha and J. Gopalakrishnan, Properties of the ferrimagnetic double-perovskites A2FeReO6 (A = Ba and Ca), Materials Research Society Symposium Proceedings, 602, 23 (2000).
J. Gopalakrishnan, A. Chattopadhyay, S. B. Ogale, T. Venkatesan, R. L. Greene, A. J. Millis, K. Ramesha, B. Hannoyer and G. Marest, Metallic and nonmetallic double perovskites: A case study of A2FeReO6 (A = Ca, Sr, Ba), Phys. Rev. B, 62, 9538 (2000).
J. Gopalakrishnan, T. Sivakumara, K. Ramesha, V. Thangadurai and G. N. Subbanna, Transformations of Ruddlesden-Popper oxides to new layered perovskite oxides by metathesis reactions, J. Am. Chem. Soc., 122, 6237 (2000).
K. Ramesha, V. Thangadurai, D. Sutar, S. V. Subramanyam, G. N. Subbanna and J. Gopalakrishnan, ALaMnBO6 ( A = Ca, Sr, Ba; B = Fe, Ru) double perovskites, Mater. Res. Bull., 35, 559 (2000).
W. Prellier, V. Smolyaninova, A. Biswas, C. Galley, R. L. Greene, K. Ramesha and J. Gopalakrishnan, Properties of the ferrimagnetic double-perovskites A2FeReO6 (A = Ba and Ca), J. Phys.:Condens. Matter., 12, 965 (2000).
K. Ramesha and J. Gopalakrishnan, A new method for the synthesis of chromium(IV) oxide at ambient pressure, J. Chem. Soc. Chem. Commun., 1173 (1999).
J. Gopalakrishnan, K. Ramesha, K. K. Rangan and S. Pandey, In search of nonlinear optical materials for second harmonic generation, J. Solid State Chem., 148, 75 (1999).
J. B. Goodenough, J. Gopalakrishnan and K. Ramesha, Dense hydrogen and disproportionation, J. Solid State Chem., 138, 369 (1998).
K. Ramesha, V. N. Smolyaninova, J. Gopalakrishnan and R. L. Greene, ALaMn2O6-y (A= K, Rb): Novel ferromagnetic manganites exhibiting negative giant magnetoresistance, Chem. Mater., 10, 1436 (1998).
K. Ramesha, S. Uma, N. Y. Vasanthacharya and J. Gopalakrishan, New La2CuO4 derivatives La2-2xSr2xCu1-xMxO4 (M = Ti, Mn, Fe or Ru): A study of linear Cu-O-M electronic interaction in two dimensions, J. Solid State Chem., 128, 169 (1997).