Department of Physics
University of Kerala
Established in 1970
Re acreditted by NAAC with A++ grade
Department of Physics
University of Kerala
Kariavattom Campus
Thiruvananthapuram
Dr. Sibi K S
Assistant Professor
Phone (Res) : 9496716356
Mobile : +91-9847470356
Email : sibi@keralauniversity.ac.in
Design and development of solid electrolytes for hydrogen fuel cells. This work is done as a part of partial fulfilment my Ph.D thesis under the guidance of Dr. Peter Koshy (Former Head) and Dr P Prabhakara Rao, Scientist F, National Institute for Interdisciplinary Science and Technology (NIIST), Trivandrum. Currently, I working on to collect a detailed scientific and technical knowhow on application of pyrochlore oxides in Solid Oxide Fuel Cells (SOFCs) applications, to synthesize new pyrochlores oxide ion conductor with better conductivity at lower operating temperature (Intermediate Temperature Solid Oxide Fuel Cells-ITSOFCs), to review various factors like dopant ion radii, effective charge and concentration and emphasizing how defect interactions control mass transport in double substitution of pyrochlores oxide and to optimize the conduction mechanism for design of an Intermediate Temperature Solid Oxide Fuel Cells (IT- SOFCs). My focus is on exploiting appropriate transport mechanisms that are favourable at intermediate temperatures.
2006 – 2011
Doctor of Philosophy in Physics
National Institute for Interdisciplinary, Science and Technology (NIIST), Formerly Regional Research Laboratory (RRL), Council for Scientific and Industrial Research (CSIR), Pappanamcode, Trivandrum – 695 019, India.
2004– 2006
Master of Science in Physics (89.1%)
Rank Holder, Kerala University
2001 – 2004
Bachelor of Science in Physics (98.2%), Rank Holder, Kerala University
Logmann Award for best oral Presentation in EMSI-NC 2007 and 2009
Qualified in CSIR-JRF-NET (Physics) (Qualified for SPM test- Top 25 among JRFs) exam in 2005 December conducted by CSIR, India
Qualified in SRF (Senior Research Fellowship) in 2008 from CSIR, India
M Sc and B Sc Rank Holder
Oct 2010-Feb 2011
Assistant Professor
Department of Physics
Mar Athanasius College,
Kothamangalam
Feb 2011-Feb 2014
Assistant Professor
Head of Department (HOD)
Department of Physics
Government Engineering College,
Barton Hill (GECBH), Trivandrum – 695 035
July ‘06 – Feb ’11
Research Experience (JRF/SRF)
National Institute for Interdisciplinary
Science and Technology (NIIST),
Formerly Regional Research Laboratory (RRL),
Council for Scientific and Industrial Research (CSIR),
Pappanamcode, Trivandrum – 695 019, India.
Deepthi N. Rajendran, K. Ravindran Nair, P. Prabhakar Rao*, K.S. Sibi, Peter Koshy, V.K.Vaidyan., “New perovskite type oxides: NaATiMO6 (A=Ca or Sr; M=Nb or Ta) and their electrical properties”, Materials Letters 62 (2008) 623–628
Deepthi N. Rajendran, K. Ravindran Nair, P. Prabhakar Rao*, K.S. Sibi, Peter Koshy, V.K.Vaidyan., “Ionic conductivity in new perovskite type oxides: NaAZrMO6 (A=Ca or Sr;M=Nb or Ta)”, Materials Chemistry and Physics 109 (2008) 189-193
P. Prabhakar Rao*, K Ravindran Nair, K S Sibi, Peter Koshy., “Pyrochlore based oxides with small temperature co- efficient of dielectric constant”, Applied Physics letters 92 (2008 )1-4br>
K.S. Sibi, A.N. Radhakrishnan, M. Deepa, P. Prabhakar Rao, Peter Koshy,, “Oxide ion conductivity and relaxation in CaREZrNbO7 (RE = La, Nd, Sm, Gd, and Y) system”, Solid State Ionics, 180 (2009) 1164-11<7>
A.N. Radhakrishnan, P. Prabhakar Rao, K.S. Sibi, M. Deepa, Peter Koshy., “Order–disorder phase transformations in quaternary pyrochlore oxide system: Investigated by X-ray diffraction, transmission electron microscopy and Raman spectroscopic techniques”, Journal of Solid State Chemistry, 182 (2009) 2312-2318br>
br>
M. Deepa, P. Prabhakar Rao, A.N. Radhakrishnan, K.S. Sibi, Peter Koshy., “Pyrochlore type semiconducting ceramic oxides in Ca–Ce–Ti–M–O system (M = Nb or Ta)—Structure, microstructure and electrical properties”, Materials Research Bulletin, 44 (2009)1481-1488.
Solid Oxide Fuel Cell Electrolyte: A brief Review; Dr. Sibi K S, National Seminar on Renewable Energy sources and Clean Development Mechanism (RECDM 2011) at T.K.M.M College, Nangiarkulangara, July 6-8, 2011 (won the best oral presentation award)
Pyrochlore compounds with oxide ion conduction: Microstructure and Impedance Spectroscopy analysis; Sibi K S, Radhakrishnan A N, Sameera S, Rao P P, Koshy Peter., Electron Microscopy Society of India-National Conference (EMSI-NC) 2009. (won the best oral presentation award sponsored by M/s. ICON Analytical Pvt. Ltd.)
Synthesis, Microstructural Characterization and Oxide Ion Conductivity of New pyrochlore type Oxides: BaR4Zr4NbO17.5 (R = La, Nd, Sm, Gd, Y) K. S. Sibi, Deepa .M, A.N. Radhakrishnan, Mariam Thomas P. Prabhakar Rao and Peter Koshy International seminar on Mineral Processing Technology (MPT-2008) April 22-24, 2008.
Synthesis, Microstructural Characterization and Oxide Ion Conductivity of New Pyrochlore type Oxides: NaRMMoO7 (where R=La or Sm, M = Zr or Ti)” K. S. Sibi, Deepa .M, P. Prabhakar Rao and Peter Koshy Electron Microscopy Society of India-National Conference (EMSI-NC) 2007. ( won Logmann Award for best oral presentation)
Impedance Spectroscopy and electrical conductivity studies of Novel Phosphates: AREP2O7.5 (A = Ca and Sr; RE = La, Nd, Sm) K. S. Sibi, Deepa .M, P. Prabhakar Rao and Peter Koshy International Conference on Advanced Materials and Composites (ICAMC- 2007) at Thiruvananthapuram.
Solid Oxide Fuel Cell Electrolyte: A brief Review K.S. Sibi. MET News. Vol. 26 No.1, A Quarterly Bulletin of The Indian Institute for Metals, Trivandrum Chapter October 2008.
Pyrochlore compounds with oxide ion conduction: Microstructure and Impedance Spectroscopy analysis. K. S. Sibi, Radhakrishnan A N, Sameera S, P. Prabhakar Rao and Peter Koshy Electron Microscopy Society of India-National Conference (EMSI-NC) 2007. ( won the best oral presentation award sponsored by M/s. ICON Analytical Pvt. Ltd.)
2015 : Refresher Course in Nanoscience (25-11-2015 to 15-12-2015)
2020 : Refresher Course (05-08-2020 to 18-08-2020)
2020 : Refresher Course (15-10-2020 to 28-10-2020)