Name :   Dr.S.K. Tiwari

Designation :   Chief Scientist

Contact Information :

• Email id :  sktiwari@nml.res.in
• Mobile/Phone no:  +91 657 2345083, +91 9431703324

Educational Qualification :   M.Sc., Ph.D. (Chemistry)

Areas of Expertise :   Corrosion, Corrosion protective coatings, Electrocatalysis

No. of Papers Published :   49

• International :   1. Effect of carbonate and phosphate conversion pretreatments and optimization on corrosion behavior of subsequent electroless nickel coating on AZ91 alloy, Charu Singh, S.K. Tiwari and R. Singh, Appl. Surf. Sci., 483 (2019) 334-354. 2. Exploring environment friendly nickel electrodeposition on AZ91 magnesium alloy: Effect of prior surface treatments and temperature of the bath on corrosion behavior, Charu Singh, S.K. Tiwari and Raghuvir Singh, Corros. Sci., 151 (2019) 1- 19. 3. Establishing Environment Friendly Surface Treatment for AZ91 Magnesium Alloy for Subsequent Electroless Nickel Plating, Charu Singh, L.K. Meena, S.K. Tiwari and R. Singh, J. Electrochem. Soc. 165(2) (2018) C71-C85. 4. Deposition and characterization of electroless Ni on fluoride free pretreated AZ91 magnesium alloy, Charu Singh, S.K. Tiwari and R. Singh, Materials Today- Proceedings 5(9) (2018) 17312- 17319. 5. Development and degradation behavior of protective multilayer coatings for aluminum reflectors for solar thermal applications, S.K. Mishra, Vikash Kumar, S.K. Tiwari, T. Mishra, Gopal Angula, Saikat Adhikari, Thin Solid Films 619(2016)202. 6. Corrosion and tribological behavior of laser processed 13Cr-4Ni and AISI 304 stainless steel, Lasers in Engineering 35(2016)63. 7. Laser cladding of Stellite 6 on stainless steel to enhance solid particle erosion and cavitation resistance, RAGHUVIR SINGH, DAMODAR KUMAR, S.K. MISHRA and S.K. TIWARI, 251(2014)87. 8. Recent development in clay based functional coating for corrosion protection, T. Mishra, A.K.Mohanty and S.K. Tiwari, Key Engineering Materials 571(2013)93. 9. Electrochemical behavior of zirconia based coatings on mild steel prepared by sol-gel method, S.K. TIWARI, MANJU TRIPATHI and RAGHUVIR SINGH, Corros. Sci. 63 (2012) 334. 10. Cladding of tungsten carbide and stellite using high power diode laser to improve the surface properties of stainless steel, RAGHUVIR SINGH, S.K. TIWARI, SUMAN K. MISHRA, Advanced Mater. Res.585(2012)498. 11. Electrochemical and mechanical behavior of laser processed Ti-6Al-4V surface in Ringer’s physiological solution, RAGHUVIR SINGH, S.K. TIWARI, SUMAN K, MISHRA, NARENDRA B. DAHOTRE, J. Mater. Sci.: Mater. Med. 22(2011)1787. 12. Development of conversion coating on mild steel prior to sol gel nanostructured Al2O3 coating for enhancement of corrosion resistance, S.K. TIWARI, R.K. SAHU, A.K. PRAMANICK, RAGHUVIR SINGH, Surf. Coat. Technol. 205(2011) 4960. 13. Electro-catalytic activities of binary nano-composites of Pt and nano-carbon/multiwall carbon nanotube for methanol electro-oxidation, R.N. SINGH, R. AWASTHI and S.K. TIWARI, The Open Catalysis J. 3 (2010) 50. 14. Iron molybdates as electrocatalysts for O2 evolution reaction in alkaline solutions, R.N. SINGH, MADHU, R. AWASTHI and S.K. TIWARI, Int. J. Hydrogen Energy 34 (2009) 4693. 15. Preparation and characterization of sol–gel derived yttria doped zirconia coatings on AISI 316L, S.K.TIWARI, JHUMA ADHIKARY, T.B. SINGH and R. SINGH, Thin Solid Films 517 (2009) 4502. 16. Perovskite-type La2−xSrxNiO4 (0≤x≤1) as active anode materials for methanol oxidation in alkaline solutions, R.N. SINGH, T. SHARMA, A. SINGH, ANANDITA, D. MISHRA and S.K. TIWARI, Electrochim. Acta. 53 (2008) 2322. 17. Effect of frequency on the properties of plasma nitride AISI 4340 steel, J. ALPHONSA, G. SINHA, A. KUMAR, G. JHALA, S. K. TIWARI, S. GUPTA, P. A. RAYJADA, N. CHAUHAN, P. M. RAOLE and S. MUKHERJEE, J. Met. Mater. Sci. 50 (2008) 119. 18. Laser surface processing of Ti6Al4V in gaseous nitrogen: corrosion performance in physiological solution, RAGHUVIR SINGH, S. GHOSH CHOWDHURY, S.K. TIWARI and NARENDRA B. DAHOTRE, J Mater Sci : Mater Med 19 (2008) 1363. 19. Development and characterization of sol-gel silica-alumina composite coatings on AISI 316L for implant applications, S.K. TIWARI, T. MISHRA, M.K. GUNJAN, A.S. BHATTACHARYYA, T.B. SINGH and R. SINGH, Surf. Coat. Technol. 201 (2007) 7582. 20. Studies on sorption properties of zeolite derived from Indian fly ash, T. MISHRA and S.K. TIWARI, J. Hazard. Mater. B137 (2006) 299. 21. Investigation of oxygen evolution on LaNi1-xMxO3 (M = Fe, Co, Cu; 0 x 0) films of controlled roughness; R.N. SINGH, S.K. TIWARI, T. SHARMA, P. CHARTIER and J.F. KOENIG; J. New Mat. Electrochem. Systems 2 (1999) 65. 22. Electrocatalytic properties of lanthanum manganites by low temperature synthesis. T. SHARMA, N.K. SINGH, S.K. TIWARI and R.N. SINGH; Ind. J. Engg. Matr. Sci. 5 (1998) 38. 23. Electrocatalytic properties of lanthanum manganites obtained by a novel malic acid-aided route; N.K. SINGH, S.K. TIWARI and R.N. SINGH; Int. J. Hydrogen Energy 23 (1998) 775. 24. Electrocatalytic activity of high specific surface area perovskite-type LaNiO3 via sol-gel route for electrolytic oxygen evolution in alkaline solution; R.N. SINGH, S.K. TIWARI, S.P. SINGH, A.N. JAIN and N.K. SINGH; Int. J. Hydrogen Energy 22 (1997) 557. 25. The electrocatalysis of O2 evolution/ reduction on LaNiO3 prepared by a novel malic acid-aided method; S.K. TIWARI, J.F. KOENIG, G. POILLERAT, P. CHARTIER and R.N. SINGH; J. Appl. Electrochem. 28 (1998) 114. 26. Electrocatalytic properties of spinel-type MnFe2O4 synthesized below 100o C for oxygen evolution in KOH solution; N.K. SINGH, S.K. TIWARI, K.L. ANITHA and R.N. SINGH; J. Chem. Soc. Faraday Trans. 92 (1996) 2397. 27. Synthesis of (La,Sr)CoO3 perovskite films through a sol-gel route and their physicochemical and electrochemical surface characterization for anode application in alkaline water electrolysis; R.N. SINGH, S.P. SINGH, N.K. SINGH, S.K. TIWARI, G. POILLERAT and P. CHARTIER; J. Chem. Soc. Faraday Trans. 92 (1996) 2593. 28. Effects of Ni, Fe, Cu and Cr substitutions for Co in La 0.8Sr0.2 Co1-x O3 on electrocatalytic properties for oxygen evolution; S.K. TIWARI, S.P. SINGH and R.N. SINGH; J. Electrochem. Soc. 143 (1996) 1505. 29. Preparation of thin Co3O4 films and their electrocatalytic surface properties towards oxygen evolution; S.P. SINGH, S. SAMUEL, S.K. TIWARI and R.N. SINGH; Int. J. Hydrogen Energy 21 (1996) 171. 30. Physicochemical and electrocatalytic properties of LaNiO3 prepared by a low temperature hydroxide solid solution precursor route for anode application in alkaline water electrolysis; R.N. SINGH, A.N. JAIN, S.K. TIWARI, G. POILLERAT and P. CHARTIER;J. Appl. Electrochem. 25 (1995) 1133. 31. Low temperature synthesis of perovskite-type oxides of La and Co and their electrocatalytic properties for oxygen evolution in alkaline solution; A.N. JAIN, S.K. TIWARI, P. CHARTIER and R.N. SINGH; J. Chem. Soc. Faraday Trans. 91 (1995) 1871. 32. Preparation of perovskite-type oxides of cobalt by malic acid-aided process and their electrocatalytic surface properties in relation to oxygen evolution; S.K. TIWARI, P. CHARTIER and R.N. SINGH; J. Electrochem. Soc. 142 (1995) 148. 33. High specific surface area nickel mixed oxide powders LaNiO3 (perovskite) and NiCo2O4 (spinel) via sol-gel type routes for oxygen electrocatalysis in alkaline media. M.EL. BAYDI, S.K. TIWARI, R.N. SINGH, J.L. REHSPRINGER, P. CHARTIER, J.F. KOENIG and G. POILLERAT; J. Solid State Chem. 116 (1995) 157. 34. Active thin NiCo2O4 films prepared on Ni for oxygen evolution in alkaline medium. S.K. TIWARI, S. SAMUEL, R.N. SINGH, P. CHARTIER, J.F. KOENIG and G. POILLERAT; Int. J. Hydrogen Energy 20 (1995) 9. 35. Effects of Ta, La and Nd additions on the corrosion behaviour of aluminium bronze in mineral acids; R.N. SINGH, S.K. TIWARI and W.R. SINGH; J. Appl. Electrochem. 22 (1992) 1175. 36. Studies of electrocatalytic properties on some austenitic stainless steel in alkaline medium for O2 evolution; S.K. TIWARI, ANITHA K.L. and R.N. SINGH; J. Electroanal. Chem. 319 (1991) 263. 37. Influence of minor additions of La,Ce and Nd on the corrosion behaviour of aluminium bronze in sulphuric acid solution; R.N. SINGH, S.K. TIWARI and N. VERMA; British Corros. J. 25 (1990) 131. 38. Influence of minor additions of Ta and Nd on the corrosion behaviour of propeller bronze in mineral acids; R.N. SINGH, S.K. TIWARI and N. VERMA; Corros. Prev. & Contr. 352 (1988) 43.
• National :   1. Influence of SiO2 substitution on corrosion behavior of sol gel TiO2 coating on mild steel, S.K. Tiwari, Manju Tripathi and Raghuvir Singh, IIM Metal News 16(2013)19. 2. Influence of substitution of Ru on the electrocatalytic properties of the perovskite- type LaSrNiO4 electrode towards methanol oxidation, R.N. SINGH, A. SINGH, ANANDITA, D. MISHRA, S.K. TIWARI and M.K. GUNJAN, Ind. J. Chem. 47A (2008) 1187. 3. Synthesis and sorption properties of 13X zeolite derived from coal fly ash, T. MISHRA, S.K. TIWARI, N.N. DAS and B. MAHATO, J. Met.. Mater. Sc. 45 (2003) 193. 4. Electrocatalytic properties of lanthanum manganites by low temperature synthesis. T. SHARMA, N.K. SINGH, S.K. TIWARI and R.N. SINGH; Ind. J. Engg. Matr. Sci. 5 (1998) 38. 5. The effect of some rare earth additives on corrosion of aluminium bronze in hydrochloric acid solution; R.N. SINGH, N. VERMA, S.K. TIWARI and W.R. SINGH; Ind. J. Chem. Tech. 1 (1994) 103. 6. Mechanism of electroreduction of oxygen on thin Co3O4 and NiCo2O4 films. R.N. SINGH, S.K. TIWARI and P. CHARTIER; Ind. J. Chem. 29 (1990)837. 7. Kinetics and mechanism of decomposition of hydrogen peroxide catalysed by Cu2+ and Cu(NH3)4 2+ adsorbed on alumina; S.K. TIWARI and R.N. SINGH; Ind. J. Chem. 26 (1987) 420. 8. Kinetics and mechanism of decomposition of hydrogen peroxide catalysed by Co2+ adsorbed on alumina; S.K. TIWARI and R.N. SINGH; Ind. J. Chem. 26 (1987) 1044. 9. Kinetics and mechanism of decomposition of hydrogen peroxide catalysed by Cu2+ adsorbed on beryllium oxide; S.K. TIWARI and R.N. SINGH; Ind. J. Tech. 25 (1987) 401. Proceedings 1. Influence of alloying elements on the corrosion properties of various plasma nitrided steels, J. Alphonsa, S.K. Tiwari, G. Jhala, P.A. Rayjada, P.M. Raole, S. Mukherjee, Proceedings of DAE-BRNS Workshop on Plasma Surface Engineering, BARC, Mumbai, September 23-25, 2004, p 292-294. 2. Chemical pretreatment of mild steel for ceramic coatings through sol-gel route, S.K. Tiwari, Raghuvir Singh, Proceedings of National Conference on Corrosion Mitigation in Marine Environment, NMRL, Ambernath, Feb. 07-08 (In CD ROM)

No.of.Patents :   1. A Process for Surface Pretreatment of Ferrous Substrates for Sol-Gel Ceramic Coating, S.K. Tiwari, Raghuvir Singh, Appl. No. 0208DEL2008; Patent No. 268363 2. An improved process for Electroless Nickel coating on Mild Steel substrate, T.B.Singh, S.K. Tiwari, A.K.Bhattamishra, R.Singh, S.Bhattacharjee, Appl. No. 0674DEL2010; Patent No. 280669. 3. A Process for preparation of polymeric N-acrylamido triazole compounds and the use thereof as anti tarnishing agents and corrosion inhibitors of copper and copper alloys, A.K. Mohanty, S.K. Tiwari, T. Mishra, S. chakravarty, Appl. No. 3445DEL2012, Patent No. 295594. 4. A Method To Determine Corrosive Resistivity Performance Of Various Coating On Reinforcement Bars, L C Pathak, Sharvan Kumar, S K Tiwari, S K Mishra, D D N Singh, Appl. No. 0278KOL2013; Patent No. 323420. 5. A CLOSED LOOP SYSTEM FOR SIMULATING AND MONITORING CORROSION PROPERTIES IN CONTINUOUS FLOW CONDITION, TRILOCHAN MISHRA, KANCHAN KUMAR PAUL, RAJNEESH KUMAR, RAGHUVIR SINGH, SHASHI KANT TIWARI, LALIT MEENA, BIPIN KUMAR, ANIL BHARDWAJ, CHINTAMANI TANDI, Appl. No. 201711018193 Filed on 24-05-2017/24-05-2018 6. Composionally Modulated Zn-Fe Multilayered Coatings, Stephen P. Gaydos, Vijaykumar S. Ijeri, Om Prakash, Trilochan Mishra, Raghuvir Singh, Shashi Kant Tiwari , US Patent No. 10767274 . 7. Compositionally modulated Zinc-Manganese multilayered coatings, Stephen P. GAYDOS, Vijaykumar S. IJERI, Om PRAKASH, Shashi Kant TIWARI, Raghuvir SINGH, Sharma PASWAN, Lokesh C. PATHAK, US Patent Publication No. 20190264344 dated 29-08-2019 8. AN ENVIRONMENT FRIENDLY NICKEL ELECTROPLATING PROCESS ON MAGNESIUM ALLOY IN NON-AQUEOUS BATH, CHARU SINGH, RAGHUVIR SINGH, SHASHI KANT TIWARI, Appl. No. 2.01811E+11 Filed on 27-11-2018 9. AN IMPROVED HOT DIP COATING PROCESS, WALUNJ MAHESH GULAB, TIWARI SHASHI KANT, PATHAK LOKESH CHANDRA, Appl. No. 2.01911E+11 Filed on 23-01-2019

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