Jayanthi Kumar

Bio

Dr. Jayanthi Kumar a Materials Chemist with immense experience in the design, synthesis, and characterization of several layered materials for potential applications. She received her B.S.(2009) & M.S.(2011) in Chemistry from St. Joseph’s College, Bangalore, India. She completed her Ph.D., in Material Science at Bangalore University (2017), and worked as Research Associate in Indian Institute of Science in Inorganic and Physical Chemistry Department (2018). She joined Prof Navrotsky’s group at University of California (2019) and moved to Arizona State University(2020-2022) along with the group. She joined Oak Ridge National Laboratory (ORNL) as a Postdoctoral Research Associate in the Nanomaterials Chemistry Group, Chemical Sciences Division in 2022.

Her expertise is layered double hydroxides, battery materials, perovskites, zeolites, electrochemistry, thermochemistry, Li extraction, and recycling battery materials. Experience in designing sorbents for Lithium extraction. Hands-on experience in structural analysis (XRD, FTIR, Raman, and SEM/EDS), analytical methods (ICP OES and ICP MS), thermal analysis (DSC, TGA, and DTA), Calorimetry (room temperature calorimetry, high-temperature melt solution calorimetry), electrochemical methods (CV, EIS and, battery testing protocols).

Publications

K. Jayanthi, P. V. Kamath, ‘Observation of Cation Ordering and Anion-Mediated Structure Selection Among the Layered Double Hydroxides of Cu(II) and Cr(III)’ Dalton Transactions, 2013, 42, 13220-13230.

S. Radha, K. Jayanthi, J. Breu, P. V. Kamath, ‘Relative Humidity-Induced Reversible Hydration of Sulfate Intercalated Layered Double Hydroxides’ Clays and Clay Minerals, 2014, 62, 53-61.

K. Jayanthi, S. Nagendran, P. V. Kamath, ‘Layered Double Hydroxides: Proposal of a One-Layer Cation-Ordered Structure Model of Monoclinic Symmetry’ Inorganic Chemistry, 2015, 54, 8388-8395. 

K. Jayanthi, P. V. Kamath, ‘A Crystal Chemical Approach to a Cation-Ordered Structure Model for Carbonate-Intercalated Layered Double Hydroxides’ Crystal Growth and Design, 2016, 16, 4450-4456.

K. Jayanthi, P. V. Kamath, G. Periyasamy, ‘Electronic Structure Calculations of Cation-Ordered II-III Layered Double Hydroxides: Origin of the Distortion of the Metal Coordination Symmetry’ European Journal of Inorganic Chemistry, 2017, 2017, 3675-3682.

G. Jagannath, B. Eraiah, G. Anuraag, F. Hugo, B. Daniela, K. Jayanthi, K. Katturi, S.  V. Rao, F. José, A. Kalyandurg, and Amarnath R. Allu ‘Structural and Femtosecond Third-Order Nonlinear Optical Properties of Sodium Borate Oxide Glasses: Effect of Antimony’ Journal of Physical Chemistry C, 2019, 123, 9, 5591-5602.

G. Jagannath, B. Eraiah, K. Jayanthi, S. R.Keshri, Sudipta Som, G, Vinitha, A. G. Pramod, K. N. Krishnakanth, G. Devarjulu, S. Venugopal Roa, K. Annapurna, Subrata Das, and Amarnath R. Allu ‘Influence of gold nanoparticles on the nonlinear optical and photoluminescence properties of Eu₂O₃ doped alkali borate glasses’ Physical Chemistry Chemical Physics, 2020, 22, 2019-2032.

P. Ranjith, S. Sreevalsa, J. Tyagi, K. Jayanthi, G. Jagannath, P. Patra, S. Ahmad, K. Annapurna, Amarnath R. Allu, and Subrata Das ‘Elucidating the Structure and Optimizing the Photoluminescence Properties of Sr_2-xAl₃O₆F: Eu_x oxyfluorides for Cool White LEDs’ Journal of Alloys and Compounds, 2020, 826, 154015.

K. Jayanthi, K. F .U Rahman, P. V. Kamath, G. Periyasamy ‘Electronic Transitions in Layered Hydroxides: Consequences of Trigonal Distortion of Octahedral Symmetry’ Spectrochim Acta A Molecular and Biomolecular Spectroscopy, 2020, 233, 118192

S. I. Zones, K. Jayanthi, J. Pascual, D. Xie, A. Navrotsky, ‘Energetics of the Local Environment of Structure Directing Agents Influence Zeolite Synthesis’ Chemistry of Materials, 2021, 33, 2126

P. Ranjith, S. Sreevalsa, Pritha Patra, Sudipta Som, Ammu Menon, K. Jayanthi, K. Annapurna, N. M. Anoop Krishnan, Amarnath R. Allu ‘Realizing cool and warm white-LEDs based on color tuneable (Sr, Ba)₂Al₃O₆F: Eu²⁺ phosphors obtained via a microwave-assisted diffusion medium’ Physical Chemistry Chemical Physics, 2021,23, 15245.

S. Singh, P. Kumar Jha, M. Avdeev, W.L. Zhang, K. Jayanthi, A. Navrotsky, H. N. Alshareef, and P. Barpanda ‘Marinite Li₂Ni(SO₄)₂ as a New Member of Bisulfate Family of High-Voltage Lithium Battery Cathodes’ Chemistry of Materials, 2021, 33, 15, 6108.

T. Subramani, A. Voskanyan, K Jayanthi, M. Abramchuk, A. Navrotsky, ‘A Comparison of Order-Disorder in Several Families of Cubic Oxides’ Frontiers Chemistry, 2021, 9:719169.

S. Yang, K. Jayanthi, A. Anderko, R.E. Riman, A. Navrotsky, ‘Thermochemical Investigation of the Stability and Conversion of Nanocrystalline and High-Temperature Phases in Sodium Neodymium Fluorides’ Chemistry of Materials, 2021, 33, 24, 9571.

K. Jayanthi, G Neilsen, P.F. Rosen, C. I. Anderson, M. S. Dickson, B. F. Woodfield, M. P. Paranthaman, A. Navrotsky^, ‘Cryogenic Heat Capacity Measurements and Thermodynamic Analysis of Lithium Aluminum Layered Double Hydroxides (LDHs) with Intercalated Chloride’, American Mineralogist, 2022, 107 (4), 709.

I. Mandal, S. Chakraborty, K. Jayanthi, M. Ghosh, K. K. Dey, K. Annapurna, J. Mukhopadhyay, A. D. Sharma, A. R. Allu, ‘Role of Sodium-ion Dynamics and Characteristic Length Scales in Ion-Conductivity in Aluminophosphate Glass Containing Na₂SO₄’ Journal of Physical Chemistry C, 2022, 126, 6, 3276.

P. Barman, D. Dwibedi, K. Jayanthi, S. S. Meena, S. Nagendra, A. Navrotsky, P. Barpanda, ‘Aqueous Spray-Drying Synthesis of Alluaudite Na2+2xFe2-x(SO4)3 Sodium Insertion Material: Studies of Electrochemical Activity, Thermodynamic Stability and Humidity Induced Phase Transition’ Journal of Solid State Electrochemistry, 2022, 26, 1941-1950.

K. Jayanthi, I. Spanopoulos, N. Zibouche, A. A. Voskanyan, E. S. Vasileiadou, M. S. Islam, A. Navrotsky,  M. G. Kanatzidis, ‘Entropy stabilization effects and ion migration in 3D “hollow” halide perovskites’ Journal of American Society, 2022, 144, 18, 8223.

P. Patra, R. Kumar, K. Jayanthi, M. Fabian, G. Gupta, S. Khan, S. Chakraborty, S. Das, A. A. Allu, K. Annapurna ‘Ln₂Te₆O₁₅ (Ln=La, Gd, and Eu) “Anti-Glass” Phases Assisted Lanthanum-Tellurite Transparent Glass-Ceramics: Eu³⁺ Emission and Local Site Symmetry Analysis’, Inorganic Chemistry, 2022,61, 27, 10342-10358.

S. Singh, A. Neveu, K. Jayanthi, T. Das, S. Chakraborty, A. Navrotsky, V. Pralong,  P Barpanda, Facile Synthesis and Phase Stability of Cu-based Na2Cu(SO4)2.xH2O (x = 0-2) Sulfate Minerals as Conversion type Battery Electrodes, Dalton Transactions, 2022, 51, 11169-11179.

L. D. Gibson, K. Jayanthi, S. Yang, N. Thiele, L. M. Anovitz, R. L. Sacci, A. Navrotsky, V. S. Bryantsev, Characterization of Lanthanum Monazite Surface Chemistry and Crystal Morphology through Density Functional Theory and Experimental Approaches, Journal of Physical Chemistry C, 2022, 126, 44, 18952-18962.

K. Jayanthi, A. Chaupatnaik, P. Barpanda, A. Navrotsky, Probing Capacity Trends in MLi₂Ti₆O₁₄ Lithium-Ion Battery Anodes Using Calorimetric Studies, ACS Omega, 2022, 7, 46, 42482–42488.

A. Reitz, H. Pazniak, C. Shen, H. K. Singh, K. Jayanthi, N. Kubitza, A. Navrotsky, H. Zhang, U. Wiedwald,  C. S. Birkel, ‘Cr₃GeN: A Nitride with Orthorhombic Antiperovskite Structure’ Chemistry of Materials, 2022, 34,23,10304-10310.

A. A. Voskanyan, K. Jayanthi, A. Navrotsky, ‘Vacancy Control in TiNb2O7: Implications for Energy Applications’ Chemistry of Materials, 2022, 34, 23, 10311-10319.

M. Niu, K. Jayanthi, H. Gao,A. P. Solomon, E. C.O'Quinn, L. Su, Y, Qin, M. E. Toimil-Molars, H. Wang, M. Lang, A. Navrotsky ‘Structural and thermodynamic evolution of an amorphous SiOC ceramic after swift heavy ion irradiation’ Acta Materialia, 2023, 242, 118475.

P. Barman, P. K. Jha, A. Chaupatnaik, K. Jayanthi, R. Prasada Rao, G. Sai Gautam, S. Franger, A. Navrotsky, P. Barpanda, ‘A New High Voltage Alluaudite Sodium Battery Insertion Material’, Materials Today Chemistry, 2023 (Just accepted).

Awards

Senior Research Fellowship (SRF) recipient from Council of Scientific and Industrial Research (CSIR), Government of India (GOI), 2015-17.

Summer Research Fellowship recipient from University Grant Commission (UGC)-Networking center, School of Chemistry, University of Hyderabad, India for the year 2010.

Session Chair for 10th Annual Oak Ridge Postdoctoral Association Research Symposium (ORPA) 2022.

Organized conferences Department of Science and Technology (DST), Government of India (GOI), Innovation in Science Pursuit for Inspired Research (INSPIRE) Science Camp, under Inspired Internship Scheme 2013-2016.

Secretary of Chemical Society 2010-2011, St. Joseph’s College.

Education

Ph.D. in Materials Chemistry, Central College, Bangalore University, Bangalore, India (2011-2017)

Master of Science (Analytical Chemistry), St. Joseph’s College, Bangalore, India (2009-2011)

Bachelors of Science (Chemistry), St. Joseph’s College, Bangalore, India (2006-2009) 

Publications