Dr PALANI Balaya
Faculty of Engineering, Block E3A, #04-23
National University of Singapore
7 Engineering Drive 1
Just after graduating (1987-1993) from the University of Hyderabad, India, in the area of Solid State Ionics, I joined at the Indian Institute of Science, Bangalore as a Research Associate (1994-1996) and worked on the thermal properties of insulating materials at low temperature. I later joined at the Inter University Consortium (Bhabha Atomic Research Centre campus) Mumbai, as a Scientist (1996-2001) and worked with neutron diffractometer to investigate the structure of amorphous materials. I was also a Visiting Fellow (2001) at the Madras University, Chennai, and involved in the investigation of transport properties of nanocrystalline materials. I then moved to the Max Planck Institute for Solid State Research, Stuttgart, Germany as a Guest Scientist (2001-2006) and worked with Prof. Joachim Maier and contributed in the areas of anomalous transport phenomenon at nano-size (mesoscopic phenomenon), energetics of nano-crystals and interfacial lithium storage. I joined as an Assistant Professor in the Faculty of Engineering, NUS in January 2007. My current research area is nano-ionics for energy systems specifically in the context of solar energy conversion as well as lithium batteries for energy storage.
o Excitonic solar cells
o Energy storage â€“ Lithium batteries and supercapcitors
o Solid oxide fuel cells
o Electrical conduction in nanostructured materials
o Thermodynamic stability of nanomaterials
Link: in progress
1) â€œ6Li MAS NMR Investigation of Electrochemical Lithiation of RuO2: Evidence for an Interfacial Storage Mechanismâ€,
E. Bekaert, P. Balaya, S. Murugavel, J. Maier and M. MeÌneÌtrierâ€, Chemistry of
Materials, (in press, 2009 DOI: 10.1021/cm8028005).
2) â€œStorage Performance of LiFePO4 Nanoplatesâ€,
K. Saravanan, M. V. Reddy, P. Balaya, H. Gong, B. V. R. Chowdari and J. J.
Vittal, Journal of Materials Chemistry, 19 (2009) 605.
3) â€œSize Effects and Nanomaterials for Energy Applicationsâ€,
P. Balaya, Perspective Review, Energy and Environmen. Sci., 1 (2008) 645.
4) â€œIonic and electronic transport in single crystalline LiFePO4 grown by optical floating zone techniqueâ€
R. Amin, J. Maier, P. Balaya, D. P. Chen, and C. T. Lin, Solid State Ionics, 179
5) â€œEnhanced interfacial lithium storage in nanocomposites of transition metals with LiF and Li2O: comparison of DFT calculations and experimental studiesâ€,
Yu. F. Zhukovskii, E. A. Kotomin, P. Balaya, and J. Maier, Solid State Sciences, 10 (2008) 491.
6) â€œEnhanced potential of amorphous electrode materials: case study of RuO2â€ O. Delmer, P. Balaya, L. Kienzle, and J. Maier, Adv. Mater., 20 (2008) 501.
7) â€œEnhanced lithium storage in transition metal/lithium fluoride nanocomposites: Experiment and theoryâ€
Yu. F. Zhukovskii, P. Balaya, M. DollÃ©, E. A. Kotomin, and J. Maier Phys. Rev. B, 76 (2007) 235414.
8) â€œNanostructured Materials for Reversible Lithium Batteriesâ€,
P. Balaya and J. Maier, Innovation, 7 (2007) 32 (cover story).
9) â€œMesoscopic hole conduction in nanocrystalline SrTiO3: a detailed analysis by impedance spectroscopyâ€
P. Balaya, J. Jamnik, J. Fleig and J. Maier, J. Electrochem. Soc. 154 (2007) P69.
10) â€œIonic and electronic transport in single crystalline LiFePO4: electrochemical AC and DC studiesâ€
R. Amin, P. Balaya and J. Maier, Electrochem. Solid State Lett.. 10 (2007) A13.
11) â€œSynthesis of nanoporous crystallites with superior catalytic and capacitive activity via electrochemical lithiationâ€,
Y.-S. Hu, Y.-G. Guo, W. Sigle, S. Hore, P. Balaya and J. Maier, Nature Mater. 5
12) â€œSynthesis and characterization of nanocrystalline SrTiO3â€,
P. Balaya, M. Ahrens, L. Kienle, J. Maier, B. Rahmati, S.B. Lee, W. Sigle, A. Pashkin, C. Kuntscher and M. Dressel, J. Amer. Ceram. Soc. 89 (2006) 2804.
13) "Nano-ionics in the context of lithium batteries"
P. Balaya, A.J. Bhattacharyya, J. Jamnik, Yu. Zhukovskii, E. Kotomin and J.
Maier, J. Power Sources 159 (2006) 171.
14) "Mesoscopic electrical conduction in nanocrystalline SrTiO3",
P. Balaya, J. Jamnik J. Fleig and J. Maier, Appl. Phys. Lett. 88 (2006) 062109.
15) "Evidence for interfacial storage anomaly in nanocomposites for lithium batteries by first principles simulation",
Yu. Zhukovskii, P. Balaya, E. Kotomin, J. Maier, Phys. Rev. Lett. 95 (2006) 058302 (1-4) (Selected for publication in the February 20, 2006 issue of the Virtual Journal of Nanoscale Science & Technology, a weekly multi-journal compilation of the latest research on nanoscale systems).
16) "Non-Debye conductivity relaxation in a mixed glassformer system"
P. Balaya and P.S. Goyal, J. Non-Crys. Solids 351 (2005) 1573
17) "Li-storage via heterogeneous reaction in selected binary metal fluorides and oxidesâ€œ,
H. Li, P. Balaya and J. Maier, J. Electrochem. Soc., 151 (2004) A1878
18) "Dielectric and conductivity studies on lead silicate glasses having mixed alkali and alkaline earth metal oxides",
P. Balaya, V.K. Shrikhande, G.P. Kothiyal, and P.S. Goyal, Current Science 86 (2004) 553
19) "Fully reversible homogeneous and heterogeneous Li-storage in RuO2 with high capacity"
P. Balaya, H. Li, L. Kienle and J. Maier, Adv. Funct. Mater. 13 (2003) 621.
20) "Grain size effect on the universality of AC conductivity in SnO2"
A.C. Bose, P. Balaya, P. Thangadurai and S. Ramansamy, J. Phys. Chem. Solids 64 (2003)659
21) â€œEffect of Cu-substitution on the conductivity of Ag-rich AgI-CuI solid solutionsâ€,
P.S. Kumar, P. Balaya, P.S. Goyal and C.S. Sunandana, J. Phys. Chem. Solids 64 (2003) 961
22) â€œElectrical conductivity and dielectric behaviour of nanocrystalline NiFe2O4 spinelâ€.
N. Ponpandian, P. Balaya and A. Narayanasamy, J. Phys-Condens. Mat. 14 (2002) 3221
23) â€œDielectric properties of 1 MeV electron-irradiated polyimideâ€,
P.S. Alegaonkar, V.N. Bhoraskar, P. Balaya and P.S. Goyal, Appl. Phys. Lett. 80 (2002)640