Core objective:
R&D investigation of electro-inorganic chemical and technological processes and processes and products connected with the same towards development of technologies useful for industrial production/removal of pollution for societal benefits.
Research interests:
| a) | Solid polymer electrolyte (SPE) electrolyser for hydrogen production. |
| b) | SPE hydrogen-oxygen fuel cell. |
| c) |
Technologies
for the removal of arsenic, nitrate, fluoride and iron from drinking water
and use of boron doped diamond electrodes for water treatment.
|
| d) | Development of carbon cloth for fuel cell application, carbon microlites and nanoparticles. |
| e) | Hydrochlorite and ozone generators |
Scientists in the Research Group:
| ii. | Dr. G.Sozhan, Scientist. Area of specialization:. Inorganic electrochemicals, Water treatment, mechanical engineering, welding engineering. Papers published/presented: 17. Patents filed: 6 |
| iv. | Dr.S.Vasudevan, Scientist. Area of specialization: Inorganic electrochemicals, Water electrolysis, Electrocatalysis, Water & effluent treatment. Papers published/presented: 16. Patents filed: 7 |
| vi. | Dr.S.Ravichandran,
Scientist. Area of specialization: Materials Electrochemistry. Papers published/presented: 19. Patents filed: 2 |
Research Achievements:
|
Development of processes for sodium and potassium
chlorate, sodium hypochlorite, potassium and ammonium perchlorate, red
cuprous oxide, bromate, defluoridation of drinking water, dinitrogen pentoxide,
100W solid polymer electrolyte (SPE), hydrogen generator and SPE fuel
cell.
|
Processes released to industry:
| * | Potassium chlorate (12 industries) |
| * | Ammonium perchlorate |
| * | Cuprous oxide |
| * | Sodium hypochlorite generator |
Patents taken / filed:
| 1. |
Ind. Pat. No. 119189 (1968):
Improvements in or relating to the electrolytic preparation of potassium chlorate - H.V.K.Udupa, S.Sampath, R.Viswanathan, N.Thiagarajan, K.C.Narasimham, M.Nagalingam, G.Subramaniam, P.Subbiah, R.Palanisamy, S.John Peter and S.Pushpavanam. |
| 2. |
Ind. Pat. No. 121100 (1969):
Improvements in or relating to the electrolytic preparation of potassium chlorate from potassium chloride - H.V.K.Udupa, S.Sampath, N.Ramachandran, V.Dhuruvan, K.C.Narasimham, M.Nagalingam, N.Thiagarajan, G.Subramaniam, P.Subbiah, R.Palanisamy, S.John Peter and S.Pushpavanam. |
| 3. | Ind. Pat. No. 123290 (1969): Improvements in or relating to the electrolytic production of sodium perchlorate - H.V.K.Udupa, S.Sampath, K.C.Narasimham, M.Nagalingam, G.Subramaniam, R.Palanisamy, S.Pushpavanam and M.Sadagopalan. |
| 4. | Ind. Pat. No. 157439 (1981): Improved process for the electrodeposition of lead dioxide on titanium - H.V.K.Udupa, N.Thiagarajan, K.C.Narasimham, M.Nagalingam, M.Sadagopalan, S.Pushpavanam, R.Palanisamy, N.S.Raghavendran and V.Rengarajan. |
| 5. | Ind. Pat. Appl. No. 598/Del/88: Electrochemical Method for the preparation of magnesium chlorate – K.I.Vasu, K.C.Narasimham, S.Pushpavanam and S.Mohan. |
| 6. | Ind. Pat. Appl. No.552/Del/89: Electrolytic preparation of magnesium perchlorate and cell therefor - S.Pushpavanam, S.Mohan, S.Vasudevan, K.C.Narasimham and K.I.Vasu. |
| 7. | Ind. Pat. Appl. No. 133/Del/91: Improvements in or relating to the electrochemical preparation of aluminium hydroxy chlorides - M.Mohan Rao, S.Pushpavanam, S.Mohan and K.C.Narasimham. |
| 8. | Ind. Pat. Appl.No. 441/Del/91: A Process for the electrolytic preparation of antimony trioxide - S.Pushpavanam, M.Mohan Rao, S.Mohan and K.C.Narasimham |
| 9. | Ind. Pat. Appl. No. 570/Del/91: An improved process for the electrochemical preparation of strontium chlorate - S.Vasudevan, S.Pushpavanam, S.Mohan and K.C.Narasimham. |
| 10. | A process for electrochemical bleaching of pulps such as bagasse, wood pulp, rice straw pulp and the like insitu – R.Palanisamy, V.Rengarajan, G.Sozhan and K.C.Narasimham (Appl. No.883/Del/92 dt. 30.9.92). |
| 11. | Ind. Pat. Appl. No. (in processing, 1997): An Electrochemical Process for the Recovery of Cerium(IV) Hydroxide/Oxide from rare earth Chlorides - S.Pushpavanam, G.Sozhan, S.Mohan, S.Vasudevan and V.Rengarajan |
| 12. | Ind.Pat. Appl. No. (in processing, Jan 1998): A process for the preparation of iridium bromide for plating iridium - S.Pushpavanam, Malathy Pushpavanam and G.Sheela. |
| 13. | Ind.Pat. Appl. No. (in processing, Jan 1998): An improved Process for the electrodeposition of iridium with or without gold undercoat - S.Pushpavanam, Malathy Pushpavanam and G.Sheela. |
| 14. | Ind.Pat. Appl. No. (in processing, 15.7.98): A process for the recovery of chromium value from the chromate plant solid residue - S.Pushpavanam, G.Sozhan, S.Mohan, S.Thangavelu and K.Manickam |
| 15. | Ind.Pat. Appl. No. (in processing, 15.7.98): A process for the preparation of Aluminium-zinc-Indium- Iron-silicon alloy useful as anode in the electrochemical defluoridation of fluoride ion bearing waters - S.Pushpavanam, G.Sozhan, S.Mohan, Malathy Pushpavanam, V.Kapali and G.Sheela. |
| 16. | An electrochemical method for the removal of arsenate from drinking water, S.Pushpavanam, G.Sozhan, S.Mohan and S.Vasudevan, Patent filed – 2003. |
| 17. | Improvements in or relating to the preparation of membrane electrode assembly for solid polymer electrolyte water electrolyser – S.Pushpavanam, G.Sozhan, S.Mohan, S.Vasudevan, and Malathy Pushpavanam – Patent filed 2003. |
| 18. | 18. Bipolar cell for the production of chlorates and hypochlorites – V.Rengarajan, R.Palanisamy, M.Sadagopalan and K.C.Narasimham. |
Papers published in the last 5 years):
|
Year:
1999
|
|
| a) |
Zeolite as a charge
compensator for Polypyrrole, S. Ravichandran, S.Pitchumani and K.L.N.
Phani. 2nd Baltic Conference on Electrochemistry, held in Lithuania, Palalnga
10-12 June 1999
|
| b) |
Electrochemical Techniques
for water quality upgradation – S.Pushpavanam - Proc. National Seminar
on Environmental Pollution and Control, NPCECC, Bangalore, Dec. 1999,
Sec.II-2
|
|
Year:
2000
|
|
|
a)
|
Poly (amino-quinone)s:
A New class of polymers for Anticorrosive Application S.Muralidharan,
S.Ravichandran, S.Pitchumani, K.L.N.Phani, J. Mater. Sci., Lett. 19, (2000)
1299
|
|
b)
|
Electrolytic
preparation of sodium and potassium percarbonate – G.Manoharan,
M.Muthu Mohamed, N.S.Raghavendran, and K.C.Narasimham – Trans. SAEST
35(2) (2000), pp.69-72.
|
|
c)
|
Preparation
of sodium perborate by electrochemical method – M.Mohan Rao, N.S.Raghavendran,
and K.C.Narasimham – Trans. SAEST, 35 (3&4) (2000) pp.97-100.
|
|
d)
|
Effect of
chromate ion on the formation of black film on the cathode in alkaline
water electrolysis – S.Vasudevan, and S.Pushpavanam – Trans.
of the SAEST, 35 (2000) p.119.
|
|
e)
|
Preparation
of sodium perborate by electrochemical method, M.Mohan Rao, N.S.Raghavendran
and K.C.Narasimham, Trans. of the SAEST, 35 (3&4) (2000) 97-100.
|
|
f)
|
Electrolytic
preparation of sodium and potassium percarbonate, G.Manoharan, M.Muthu
Mohamed, N.S.Raghavendran and K.C.Narasimham, Trans. of the SAEST, 35(2)
(2000), 69-72.
|
|
g)
|
A modified
process for the electrodeposition of iridium - G.Sheela, Malathy Pushpavanam
and S.Pushpavanam Trans. Inst. Metal Fin., (USA), 78 (5) (2000) 191
|
|
h)
|
Recovery
of chromium from the chromate plant solid effluent - S.Pushpavanam, G.Sozhan,
S.Mohan and G.Balaji - Paper presented at the 14th Int’l Forum on
Applied Electrochemistry, Nov.12-16, 2000, Clearwaterbeach, Florida, USA.
|
|
i)
|
Aluminium
alloy anode for the electrochemical defluoridation of drinking water -
Malathy pushpavanam, S.Pushpavanam and G.Sheela - Ibid.
|
|
j)
|
Effect of
chromate ion on the formation of black film on the cathode in alkaline
water electrolysis - S.Vasudevan and S.Pushpavanam - Trans. SAEST, 35
(3&4), 2000, 119
|
|
Year:
2001
|
|
| a) |
An electrochemical process for the preparation of cerium
from rare-earths – Proc. Seminar on Processing and applications
of rare earths in India, 2001, Aug. 19, 2001, Munnar, Kerala (Org. TRE,
Udyogamandal).
|
| b) |
Advanced electrolytic hdyrogen generators, S.Pushpavanam,
S.Mohan, G.Sozhan, S.Vasudevan, Malathy Pushpavanam, S.Madhu and J.Kennedy,
SAARC Oil and Fats todays, Vol.III-IV, No.12, 1st Sept-Oct. 2001, pp.82-90.
|
| c) |
Electrolytic Hydrogen Generator - S.Pushpavanam, N.S.Raghavendran,
Malathy Pushpavanam, G.Sozhan, S.Mohan, S.Vasudevan, S.Madhu and J.Kennedy
- Proc. Technical Session on Post-Harvest Technologies (R&D) for oilseeds,
Pulses and Maize, Cheminar - 2001, IIChE, Bhbaneshvar, p25.
|
| d) |
An electrochemical process for the separation of cerium
from rare earths - S.Pushpavanam, G.Sozhan, S.Mohan and S.Vasudevan -
Proc. Seminar on Processing and Applications of Rare Earths in India –
2001, Aug. 17-19, 2001, Munnar, Kerala, Org. IRE, Udyogamandal.
|
| e) |
Advanced Electrolytic Hydrogen Generators - S.Pushpavanam,
G.Sozhan, S.Mohan, S.Vasudevan, Malathy Pushpavanam, S.Madhu and J.Kennedy
- SAARC Oils & Fats Today, Vol.3, Issue 12, Sept.-Oct., 2001, 82
|
|
Year:
2002
|
|
| a) |
Sodium chlorate production in a hydrogen lift cell,
D.Kalyanasundaram, N.Rajeswaran, S.Sathurukkan Sinha, S.Mohan, G.Sozhan,
V.Rengarajan, N.S.Raghavendran and S.Pushpavanam, Proc. of the Seventh
International Symp. on Advances in Electrochemical Science and Technology,
2002, paper G.13.
|
| b) |
Electrochemical preparation of dinitrogen pentoxide,
N.S.Raghanvedran, G.Balachandran, N.Nachiappan, K.Manickam, V.Rengarajan
and S.Pushpavanam, Proc. of the Seventh International Symp. on Advances
in Electrochemical Science and Technology, 2002, paper G.15.
|
| c) |
Zinc-nickel alloy electrodeposits for water electrolysis
– Malathy Pushpavanam, S.Pushpavanam and G.Sheela, Intl. J. Hydrogen
Energy, 27 (2002) p.627.
|
| d) |
Zinc-nickel alloy electrodeposits for water electrolysis
- Malathy Pushpavanam, S.Pushpavanam and G.Sheela - Int’l. J. Hydrogen
Energy, 27 (6) (2002) 627
|
|
Year:
2003
|
|
| a) |
Electrochemical preparation of dinitrogen pentoxide
(N2O5) – N.S.Raghavendran, G.Balachandran, N.Nachiappan, K.Manickam,
V.Rengarajan and S.Pushpavanam – Proc. of Seventh Internatl. Symp.
on Advances in Electrochemical Science & Tech. (ISAEST-VII), Chennai,
India, 2, 2003 Nov. 27-29, G-15.
|