Qualification: 
Ph.D, MPhil, MSc
n_poongothai@cb.amrita.edu

Dr. Poongothai N. currently serves as Assistant Professor in Chemistry, Department of Sciences, School of Engineering, Coimbatore Campus. Her areas of research include Corrosion Inhibitors.

Research Interests

Studies on the inhibition efficiency of natural products on corrosion of metals in various environments using different techniques- weight loss methods and electrochemical techniques.

Academic Profile

Work experience

Auguest ’07 till now Amrita Vishwa Vidyapeetham, Amrita School of Engineering, Ettimadai, Coimbatore, Tamilnadu, India.
January ’04 - July ’07 Michael Job Arts and Science College, Sulur, Coimbatore, Tamilnadu, India.
September ‘01 – June ’02 Government Polytechnique College, Coimbatore, Tamilnadu, India.
January ’92 - December '97 ARC Mat. Hr.  School, Somanur, Coimbatore, Tamilnadu,    India.

Fields of Specialization

2003 - 2006 Ph. D: Vapour Phase corrosion inhibitors (VCI)-Physical Chemistry
2000 - 2002 M. Phil: Acid Pickling Inhibitors)-Physical Chemistry
1986 – 1988 M.Sc.: Studies on the effect of electrolytes on the critical solution temperature (CST) of Phenol water system.
1984 - 1985 B.Sc: Estimation of the amount of vitamin – C (Ascorbic acid)– By quantitative analysis method )-Inorganic Chemistry

Educational Qualification

2003 – 2006 Ph.D in Physical Chemistry from Anna University, Chennai. Doctoral dissertation entitled “Study of Essential Oils as VCI for corrosion of mild steel and copper” under the supervision of Dr. S.C. Murugavel and Dr. T. Ramachandran, Amrita Vishwa Vidyapeetham, Coimbatore, Tamilnadu, India.
2000- 2001 M.Phil in Applied Chemistry, from Avinashilingham Deemed University, Coimbatore, Tamilnadu, India.
Dissertation work for Master of Philosophy entitled “Beneficial role of acid extracts of Carica papaya (fruit skin) and Nerium oderum (leaves) on corrosion of mild steel in acidic medium - A cost effective approach” under the guidance of Dr. Subashini.
1986- 1988 M.Sc in Chemistry from Madras University, Sri Sarada College for Women, Salem, Tamilnadu, India.
Dissertation work for Master’s program involved “Studies on the effect of electrolytes and organic acids on the critical solution temperature (CST) of Phenol water system under the guidance of Dr. Laxshmi
1982-1885 B. Sc in Chemistry from Bharathidasan University, Trichirappalli. Tamilnadu, India.
Dissertation work for Bachelor of Science entitled “Estimation of the amount of vitamin – C (Ascorbic acid) present in germinated Cereals and Pulses” – By quantitative analysis method.

Skill Set 

  • Experience in Corrosion Rate and inhibition efficiency determination by various weight loss methods and electrochemical methods (Tafel and A C impedance techniques)
  • Extract preparation from natural and synthetic inhibitors by distillation process
  • Analysis and interpretation of analytical data comprising of NMR, IR and UV
  • Analysis and interpretation of analytical data comprising quantitative analysis methods
     

Instruments Handled

  • Experimental experience in using Keithley instrument-2001- EG 2G PAR-173 potentiostat and PAR Impedance electrochemical analyzer-M6310
  • Experimental experience in using SEM, UV-Visible, FTIR and NMR Spectroscopy
     

Membership

  • NACE International
  • Indian council of chemist – LF 1186
  • International Solid state Chemistry and Applied Sciences (ISCAS)- LM-359
     

Publications

Publication Type: Journal Article

Year of Publication Publication Type Title

2014

Journal Article

N. Poongothai, Murugavel, S. C., and Ramachandran, T., “Corrosion Inhibitive Effect of Five Essential Oils on Copper in Seawater, Rainwater, and Industrial Environments”, International Journal of Chemistry and Chemical Engineering, vol. 4, pp. 23-34, 2014.

2014

Journal Article

N. Poongothai, Murugavel, S. C., and Ramachandran, T., “Studies on Jasiminum grandiflorumas VCI for mild steel in marine environment”, International Journal of Advance Research, IJOAR, vol. 2, no. 7, 2014.

2010

Journal Article

N. Poongothai, Ramachanderen, T., Murugavel, S. C., and Natesan, M., “Essential oils as VCIs for mild steel in various environments”, Materials Performance, vol. 49, pp. 50-55, 2010.[Abstract]


The corrosion vapor inhibition efficiency (IE) of five essential oils was investigated for mild steel in seawater, rainwater, sulfur dioxide (SO 2), and hydrogen sulfide (H2S) environments by weight loss and electrochemical methods. The highest IE was observed in all the tests at an inhibitor concentration of4%. The tests also indicated that the five oils act as mixed inhibitors but cathodic inhibition was more predominant. The surface of the specimens was investigated using scanning electron microscopy. More »»

2010

Journal Article

N. Poongothai, Ramachanderen, T., Natesan, M., and Murugavel, S. C., “The Performance of VCI Coated Paper for Corrosion Prevention of Copper in HCl Environment”, Asian Journal of Research in Chemistry, vol. 3, pp. 472–476, 2010.[Abstract]


The performance of five essential oils has been used to study the corrosion prevention of copper by weight loss and electrochemical polarization methods. Results showed that the inhibition efficiency depends upon the concentration of inhibitors as well as that of acid. The essential oils reduce the corrosion of copper in HCl environment more effectively in 4% concentration. This is due to adsorption of inhibitor molecules on metal surface, which is proved by Tempkin adsorption isotherm. The electrochemical polarization result revealed that inhibitors are of mixed type in nature. More »»

2010

Journal Article

N. Poongothai, Murugavel, S. C., Natesan, M., and Ramachandran, T., “Essential oils as vapour phase corrosion inhibitors for mild steel in seawater, rainwater, SO2 and H2S environments”, Material Performance Journal, 2010.

2009

Journal Article

N. Poongothai, Ramachanderen, T., Natesan, M., and Murugavel, S. C., “Corrosion Inhibition of Mild Steek by Essential Oils in an HCl Environment”, Materials Performance, pp. 56-57, 2009.

2009

Journal Article

N. Poongothai, Natesan, M., Murugavel, S. C., and Ramachandran, T., “Essential Oils as VCI for mild steel in HCl environment”, Material Performance Journal, pp. 52-57, 2009.

2007

Journal Article

N. Poongothai, Natesan, M., Palanisamy, N., Murugavel, S. C., and Ramachandran, T., “Azole, amine, benzoate and nitrate compound mixture as VPI for metals in NaCl and SO2 environments”, Indian Journal of Chemical Technology, vol. 14, pp. 481–487, 2007.[Abstract]


A variety of tests were performed to evaluate the feasibility of vapour phase corrosion inhibitor’s (VPI’s) application for maintenance and protection of transporting metal articles from corrosion damage. Three types of VPI were evaluated for their inhibition characteristics for mild steel (MS) and copper. Minimum dosage of one g/L is required for protections of both metals. Influence of SO₂ and chloride contamination on inhibitor performance was also investigated. The corrosion behaviour of MS and Cu in sodium chloride (0.005 M NaCl) environment in presence of VPI impregnated and unimpregnated paper has been studied by using weight loss, potentiodynamic polarization and A.C impedance spectroscopic methods. It has been found that 1g L⁻¹ of VPI impregnated on Kraft paper provides nearly 98% inhibition efficiency for mild steel and copper in 0.005 M NaCl environment. More »»

2007

Journal Article

N. Poongothai, Natesan, M., Palanisamy, N., Murugavel, S. C., and Ramachandran, T., “Azole, amine and nitrite as vapour phase corrosion inhibitors of metals in NaCl & SO2 environment”, Indian Journal of Chemical Technology, vol. 12, pp. 427-431, 2007.

2005

Journal Article

N. Poongothai, Rajendran, P., Natesan, M., and Palaniswamy, N., “Wood bark oils as vapour phase corrosion inhibitors for metals in NaCl and SO2 environments”, Indian journal of chemical technology, vol. 12, pp. 641-647, 2005.[Abstract]


Wood bark oils of Cassia siamea-gonrai (CS), Cassia auriculata (CA), Crataeva religiosa (CR) and Strychnos nux-vomica (SNV) were extracted from the dry bark. These highly volatile oils are used as a vapour phase corrosion inhibitors (VPI) for mild steel and copper in sodium chloride and sulphur dioxide environments. The inhibition efficiency of these wood bark oils has been examined by using weight loss, potentiodynamic polarization and A.C. impedance spectroscopic methods. It has been found that the inhibition capability of these oils increases with increase in concentration from 0.4 to 4%. The results indicate that the bark oils have significant inhibitive effect. This is due to adsorption of inhibitor molecule on the metal surface. At higher concentration (8%) of the inhibitor, there is decrease in inhibition efficiency. It may be due to the formation of soluble metal-inhibitor complex in the salt environments. It has also been found that 4% concentration of these inhibitors offered, above 90% inhibition efficiency for both mild steel and copper. More »»

Conferences/Workshops/Seminars

  • Present a poster on April 17th, 2015 in Corrosion Awareness Day 2015 (CAD15) in THE GANDHIGRAM RURAL INSTITUTE DEEMED UNIVERSITY, Gandhigram.
  • Seminar participated on Feb 3-5, 2015, Indo-French Seminar on Women in Science” through CEFIPRA, at IISc, Bangalore.
  • Workshop attended- on Jan 30 -31, 2014, ‘Sort Term Traning course on Corrosion and its Control, at SRM University, Kattankulathur, Chennai.
  • Akash- Faculty development programs in Amrita Vishwa Vidyapeetham, Coimbatore on December, 2013.
  • International Conference on "Nanomaterials and Nanotechnology"- NANO 2010 in K S Rangasamy College of Technology, Tiruchengode on Dec 13- 16, 2010.
  • International Conference on "3rd Bangalore NANO 2010" in IISc, Bangalaru on Dec 8- 9, 2010.
  • Paper presented- "Introduction to synthesis of nano materials by different techniques", National Conference on Current trends in Chemistry NCCTC-10, in Bharathiar University, Coimbatore on Dec 2- 3, 2010.
  • Paper Presented- "Corrosion Inhibition of Essential Oils on Copper in Sea Water, Rain Water, SO2 and H2S Environments", National Conference on Recent Advances in Electroanalytical Techniques in Gandhigram Rural Institute- Deemed University, Gandhigram on Feb 25- 26, 2010.
  • Paper Presented- "Studies on Essential Oils as VCI for Mild Steel in Marine Atmosphere", National Conference on Corrosion Assessment and Its Control- (NCAC 09) in Thiyagaraja College, Madurai on Dec 21- 22, 2009.
  • Paper Presented- "Introduction to Nanomaterials and Nanosciences, National Symposium and seminar – Solid state Chemistry and Nanomaterials in Vellore College of Technology", Vellore on Nov 19- 21, 2009.
  • National Seminar on Nanosciences and Nanomaterials, on June 4th 2009 Attended in Amrita College of Engineering and Technology, Coimbatore.
  • National Seminar on Recent Advances in Green Chemistry-RAGC’08 on Oct 14th 2008 Attended in Velammal College of Engineering and Technology, Madurai.
  • Three Days Workshop on Faculty Empowerment Programs-VIKASA on Jan 18- 20, 2008 Attended in Amrita School of Business, Coimbatore.
  • Paper Presented-"Bioinformatics in Drug Discovery" in National Seminar on "Emerging Trends and Developments in Bioinformatics" on 3- 5, Jan 2006 in Dr. G. R. Damodaran College of Science, Coimbatore.
  • National Seminar on "Emerging Trends in Chemistry" on June 2006 in Avinashilingham Deemed University, Coimbatore.
     
Faculty Research Interest: 
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