American Journal of Chemistry

American Journal of Chemistry is a peer-reviewed chemistry journal. It is aimed to publish all the latest and outstanding research articles, reviews and letters in all areas of Chemistry.

Saviour Umoren

Editorial Board Member of American Journal of Chemistry

Senior Lecturer, University Of Uyo, Nigeria

Research Areas

Polymer Synthesis/Characterization, Corrosion Electrochemistry, Organic Coatings

Education

2008Ph.D.Polymer Science, Federal University of Technology, Owerri, Nigeria
1997M.Sc.Polymer Science and Engineering, Federal University of Technology, Owerri, Nigeria
1990B.Sc. Applied Chemistry University of Jos, Jos, Nigeria

Experience

2009-2010Postdoctoral Research Fellow, State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning Province, China
2008-presentSenior Lecturer, Department of Chemistry, University of Uyo, Uyo, Nigeri
1990-1991National Youth Service Corp (NYSC)

Academic Achievement

CAS (Chinese Academy of Sciences)-TWAS (Academy of Sciences for the Developing World) Postdoctoral Fellowship, 2009-2010
Akwa Ibom State Government Postgraduate Scholar 2002, 2005
Federal Government of Nigeria Postgraduate Scholar, 1992
Akwa Ibom State Government Scholar 1988-1990
Mary Lot's Prize for the best Science Student in Year II, Faculty of Natural Sciences, University of Jos, 1989
University of Jos award for the best Year II Chemistry Student, 1988
TWAS Research Grant Award (NO: 10-107 RG/CHE/AF/AC_G-UNESCO FR-3240245995)
TWAS-UNESCO Associateship Scheme award tenable at Research Institute of Theoretical and Applied Physical Chemistry, La Plata, Argentina, 2011-2013

Membership

Member: Chemical Society of Nigeria (CSN)
Member: Polymer Institute of Chartered Nigeria (PIN)
Member: International Society of Electrochemistry (ISE)
Member: American Chemical Society (ACS)

Publications: Journals

[1]  Ezeh,I.E., Umoren, S.A., Essien, E.E., Udoh, A.P. (2012). Studies on the utilization of Hura crepitans L. seed oil in the preparation of alkyd resins, Industrial Crops and Products 36: 94-99
[2]  Umoren, S.A. (2011). Synergistic inhibition effect of polyethylene glycol-polyvinyl pyrrolidone blends for mild steel corrosion in sulphuric acid medium. Journal of Applied Polymer Science, 119 (4): 2072-2084
[3]  Umoren, S. A., Eduok, U. M., Israel, A. U., Obot, I.B., Solomon, M.M. (2011). Coconut Coir Dust Extract: A novel eco-friendly corrosion inhibitor for Al in HCl solutions, Green Chemistry Letters and Letters (in press).
[4]  Obot, I.B., Obi-Egbedi N.O., Umoren, S. A, Ebenso, E.E. (2011). Adsorption and kinetic studies on the inhibition potentials of fluconazole for the corrosion of Al in HCl solution, Chemical Engineering Communications, 198 (5): 711-725.
[5]  Umoren, S. A., Li, Y., Wang, F. H. (2011). Influence of iron microstructure on the performance of polyacrylic acid as corrosion inhibitor in sulphuric acid solution。 Corrosion Science, 53 (5):1778-1785.
[6]  Obot, I.B., Umoren, S. A, Obi-Egbedi N.O. (2011). Corrosion inhibition and adsorption behaviour for aluminuim by extract of Aningeria robusta in HCl solution: Synergistic effect of iodide ions, Journal of Materials and Environmental Science, 2(1):60-71.
[7]  Umoren, S. A., Eduok , U.M., Solomon, M. M., Udoh, A. P. (2011). Corrosion inhibition by leaves and stem extracts of Sida acuta for mild steel in 1 M H2SO4 solutions investigated by chemical and spectroscopic techniques, Arabian Journal of Chemistry doi:10.1016/j.arabjc.2011.03.008
[8]  Obot, I.B., Obi-Egbedi N.O., Umoren, S. A. (2010). Spondias mombin L. as a green corrosion inhibitor for aluminium in sulphuric acid: Correlation between inhibitive effect and electronic properties of extracts major constituents using Density Functional Theory. Arabian Journal of Chemistry doi: 10.1016/j.arabjc.2010.09.002 (in Press)
[9]  Eduok, U.M., Umoren,S. A., Udoh, A. P. (2010). Synergistic inhibition effects between leaves and stem extracts of Sida acuta and iodide ion for mild steel corrosion in 1 M H2SO4 solutions. Arabian Journal of Chemistry doi: 10.1016/j.arabjc.2010.09.006 (in Press)
[10]  Umoren, S.A., Li, Y., Wang, F.H. (2011). Effect of aluminium microstructure on corrosion and inhibiting effect of polyacrylic acid in H2SO4 solution, Journal of Applied Electrochemistry, 41(3):307-315.
[11]  Umoren, S.A., Li, Y., Wang, F.H. (2010) Synergistic effect of iodide ion and polyacrylic acid on corrosion inhibition of iron in H2SO4 investigated by electrochemical techniques, Corrosion Science, 52 (7):2422-2429.
[12]  Umoren, S.A., Li, Y., Wang, F.H. (2010) Electrochemical study of corrosion inhibition and adsorption behaviour for pure iron by polyacrylamide in H2SO4: Synergistic effect of iodide ions, Corrosion Science, 52 (5):1777-1786
[13]  Umoren, S.A., Li, Y., Wang, F.H. (2010) Effect of Polyacrylic acid on the corrosion behaviour of aluminium in sulphuric acid solution, Journal of Solid State Electrochemistry, 14 (12): 2293-2305.
[14]  Umoren, S.A., Li, Y., Wang, F.H. (2010). Influence of aluminium microstructure on corrosion and corrosion inhibitor performance in acidic medium, Journal of Materials and Environmental Science 1(3):189-196.
[15]  Ekanem, U. F., Umoren, S .A, Udousoro, I. I., Udoh, A. P. (2010). Inhibition of mild steel corrosion in HCl using pineapple leaves (Ananas comosus L.) extract , Journal of Materials Science , 45 (20):5558-5566.
[16]  Obot, I.B., Obi-Egbedi N.O., Umoren, S. A, Ebenso, E.E. (2010). Synergistic and antagonistic effects of anions and Ipomoea invulcrata as green corrosion inhibitor for aluminium dissolution in acidic medium, International Journal of Electrochemical Science, 5(7):994-1007
[17]  Umoren, S .A, Solomon, M. M., Udousoro, I. I., Udoh, A. P. (2010) Synergistic and antagonistic effects between halide ions and carboxymethyl cellulose for the corrosion inhibition of mild steel in sulphuric acid solution, Cellulose, 17 (3):635-648
[18]  Ebenso, E. E., Arslan, T., Kandemirli, F., Love, I.,Ogretir, C.,Saracoglu,M. and Umoren, S. A. (2010). Theoretical studies of some sulphonamides as corrosion inhibitors for mild steel in acidic medium. International Journal of Quantum Chemistry, 110 (14):2614-2636
[19]  Umoren, S.A, Ekanem, U.F. (2010). Inhibition of Mild Steel Corrosion in H2SO4 using Exudate Gum from Pachylobus edulis and Synergistic Potassium Halides Additives, Chemical Engineering Communications, 197 (10):1339-1356.
[20]  Solomon M. M., Umoren, S .A, Udousoro, I. I., Udoh, A. P. (2010). Inhibitive and adsorption behaviour of carboxymethyl cellulose on mild steel corrosion in sulphuric acid solution, Corrosion Science, 52 (4): 1317-1325.
[21]  Ating, E. I., Umoren,S .A. ,Udousoro, I. I., Ebenso,E. E. Udoh ,A. P.(2010). Leaves Extract of Ananas sativum as Green Corrosion Inhibitor for Aluminium in Hydrochloric Acid Solutions, Green Chemistry Letters and Reviews, 3 (2):61-68.
[22]  Umoren, S.A, Solomon, M. M. (2010). Effect of halides ions additives on the corrosion inhibition of aluminium in HCl by polyacrylamide, Arabian Journal for Science and Engineering 35 (2A):115-129.
[23]  Ukachukwu, C.O., Ogbobe, O. and Umoren, S. A. (2010). Preparation and Characterization of Biodegradable Polymer Mud Based On Millet Starch, Chemical Engineering Communications, 97 (8):1126-1139
[24]  Umoren, S.A. (2009). Corrosion Inhibition of Aluminium Alloy 3SR in HCl by Polyvinylpyrrolidone and Polyacrylamide: Effect of Molecular Structure on Inhibition Efficiency, Surface Reviews and Letters, 16 (6):831-844.
[25]  Umoren, S.A (2009). Synergistic Influence of Gum Arabic and Iodide Ion on the Corrosion Inhibition of Aluminium in Alkaline Medium, Portugaliae Electrochimica Acta, 27 (5): 565-577.
[26]  Obot, I. B., Obi-Egbedi,N. O. and Umoren, S. A.(2009). Experimental and theoretical investigation of clotrimazole as corrosion inhibitor for aluminium in hydrochloric acid and effect of iodide ion addition. Der Pharma Chemica, 1(1): 151-166.
[27]  Obot, I. B., Obi-Egbedi,N. O. and Umoren, S. A.(2009). Antifungal drugs as corrosion inhibitors for aluminium in 0.1 M HCl, Corrosion Science 51 (8): 1868-1875.
[28]  Umoren, S.A., Obot, I.B, Ebenso E.E and Obi-Egbedi, N. (2009) The Inhibition of aluminium corrosion in hydrochloric acid solution by exudate gum from Raphia hookeri, Desalination，247: 561-572
[29]  Umoren, S. A., Ebenso, E. E. and Ogbobe, O. (2009). Synergistic effect of halide ions and polyethylene glycol on the corrosion inhibition of aluminium in alkaline medium, Journal of Applied polymer Science ,113（6）: 3533-3543
[30]  Umoren, S. A., Obot, I. B and Igwe, I. O. (2009). Synergistic inhibition between polyvinylpyrollidone and iodide ions on corrosion of aluminium in HCl. The Open Corrosion Journal , 2: 1-7
[31]  Obot, I. B., Obi-Egbedi,N. O. and Umoren, S. A.(2009). Corrosion inhibition and adsorption behavior of clotrimazole on aluminium in hydrochloric acid and synergistic effect of iodide ion ,International Journal of Electrochemical Science , 4(6):863-877
[32]  Obot, I. B., Obi-Egbedi,N. O. and Umoren, S. A.(2009). The synergistic inhibitive effect and some quantum chemical parameters of 2, 3-diaminonaphthalene and iodide ions on the acid corrosion of aluminium. Corrosion Science, 51 (2): 276-282
[33]  Umoren, S.A., Obot, I.B and Obi-Egbedi, N. (2009) "Raphia hookeri gum as a potential eco-friendly inhibitor for mild steel in sulphuric acid", Journal of Materials Science, 44(1): 274-279.
[34]  Umoren, S.A (2009). Polymers as corrosion inhibitors for metals in different media-A review, The Open Corrosion Journal 2:175-188
[35]  Umoren, S. A., Obot, I. B., Ebenso, E. E. and Obi-Egbedi, N. (2008) .Studies on the inhibitive effect of exudates gum from Dacrodyes edulis on the acid corrosion of aluminium. Portugaliae Electrochimica Acta , 26(2) : 199-209.
[36]  Umoren, S. A. and Ebenso, E. E (2008). Studies on the anti-corrosive effect of Raphia hookeri exudates gum-halide mixtures for aluminium corrosion in acidic medium. Pigment and Resin Technology, 37 (3):173-182
[37]  Israel, A. U., Obot, I. B., Umoren, S. A., Mkpenie, V. N. and Ebong, G. A. (2008), .Effluents and solid wastes analysis in a Petrochemical company-A case study of Eleme Petrochemical Company Limited, Portharcourt, Nigeria . E-Journal of Chemistry, 5(1): 74-80
[38]  Israel, A. U.,Obot, I. B., Umoren, S. A. and Asuquo, J. E.(2008), Production of cellulosic polymers from agricultural wastes", E-Journal of Chemistry, 5(1): 81-85
[39]  Umoren, S. A., Obot, I. B., Akpabio, L. E. and Etuk, S. E. (2008) .Adsorption and corrosive inhibitive properties of Vigna unguiculata in alkaline and acidic media. Pigment and Resin Technology, 37 (2) :98-105
[40]  Umoren, S. A., Obot, I. B and Ebenso, E. E. (2008).Corrosion inhibition of aluminium using exudates gum from Pachylobus edulis in the presence of halide ions in HCl. E-Journal of Chemistry ,5(2):355-364
[41]  Umoren, S.A., Obot, I.B. Ebenso, E.E. and Okafor ,P.C. (2008).Eco-friendly Inhibitors from Naturally Occurring Exudate Gums for Aluminium Corrosion Inhibition in Acidic Medium. Portugaliae Electrochimica Acta. , 26(3): 267-282.
[42]  Umoren, S.A. and Obot, I.B (2008).Polyvinyl pyrrolidone and polyacrylamide as corrosion inhibitors for mild steel in acidic medium. Surface Reviews and Letters , 25(3) :277-286
[43]  Umoren, S. A. (2008) .Inhibition of aluminium and mild Steel corrosion in acidic medium using Gum Arabic. Cellulose, 15(5): 751-761.
[44]  Okafor, P. C, Ikpi, M.E., Uwah, I.E., Ebenso E.E, Ekpe, U.J. and Umoren, S.A (2008) .Inhibitory action of Phyllanthus amarus extracts on the corrosion of mild steel in acidic media. Corrosion Science, 50(8): 2310-2317.
[45]  Umoren, S. A., Ogbobe, O., Igwe, I. O. and Ebenso, E. E. (2008) .Inhibition of mild steel corrosion in acidic medium using synthetic and naturally occurring polymers and synergistic halide additives. Corrosion Science, 50 (7): 1998-2006.
[46]  Umoren, S. A. and Ebenso, E. E (2008).Blends of polyvinyl pyrrolidone and polyacrylamide as corrosion inhibitors for aluminium in acidic medium. Indian Journal of Chemical Technology, 15: 355-363.
[47]  Umoren, S.A., Obot, I.B, Ebenso, E.E. and Obi-Egbedi, N. (2008) "Synergistic inhibition between naturally occurring exudate gum and halide ions on the corrosion of mild steel in acidic medium" International Journal of Electrochemical Science, 3: 1029-1043.
[48]  Ebenso, E. E. , Alemu, H. , Umoren, S. A., Obot, I. B.(2008). Inhibition of mild steel corrosion in sulphuric acid using alizarin yellow GG dye and synergistic iodide additive. International Journal of Electrochemical Science, 3: 1325-1339.
[49]  Umoren, S. A., Eduok, U. M. and Oguzie, E. E. (2008). Synergistic inhibition of mild steel corrosiuon in 1M H2SO4 by polyvinyl pyrrolidone and iodide ions. Portugaliae Electrochimica Acta, 36(6) :533-546
[50]  Umoren, S. A., Ebenso, E. E., Okafor, P. C., Ekpe, U. J. and Ogbobe, O. (2007) .Effect of halide ions on the corrosion inhibition of aluminium in alkaline medium using polyvinyl alcohol. Journal of Applied Polymer Science, 103(5):2810-2816.
[51]  Umoren, S. A., Ogbobe, O., Ebenso, E. E. and Okafor, P. C. (2007) .Polyethylene glycol and polyvinyl alcohol as corrosion inhibitors for aluminium in acidic medium. Journal of Applied Polymer Science, 105(6):3363-3370.
[52]  Umoren, S. A., Ebenso, E. E (2007) .The synergistic effect of polyacrylamide and iodide ions on the corrosion inhibition of mild steel in H2SO4. Materials Chemistry and Physics, 106(2-3): 387-393
[53]  Obot, I. B. and Umoren, S.A. (2007) .Application fields of quantum chemistry in industry. School Science, 45(2): 20-24.
[54]  Obot, I. B. and Umoren, S.A. (2007)"Application of Nanotechnology in health School Science, 45(3) 20-24.
[55]  Ebenso, E. E., Ekpe, U. J., Umoren, S. A., Jackson, Ekerette, Abiola, O. K., Oforka, N. C. and K. Abiola (2006), "Synergistic effect of halide ions on the corrosion inhibition of aluminium in acidic medium by some polymers". Journal of Applied Polymer Science, 100 (4): 2889-2894.
[56]  Umoren, S. A. Ogbobe, O. and E. E. Ebenso (2006) "The adsorption characteristics and synergistic inhibition between polyethylene glycol and halides ions for the corrosion inhibition of mild steel in acidic medium", Bulletin of Electrochemistry, 22(4): 155-167.
[57]  Umoren, S. A., Obot, I. B., Ebenso, E. E. Okafor, P. C., Ogbobe, O and Oguzie, E. E (2006), "Gum arabic as a potential corrosion inhibitor for aluminium in alkaline medium and its adsorption characteristics", Anti-corrosion Methods and Materials, 53 (5): 277-282
[58]  Umoren, S. A., Ogbobe, O., Ebenso, E. E. and Ekpe , U. J. (2006) "Effect of halide ions on the corrosion inhibition of mild steel in acidic medium using polyvinyl alcohol", Pigment and Resin Technology, 35(5):284-292
[59]  Umoren, S. A., Ebenso, E. E.,Okafor, P. C. and Ogbobe, O (2006) ,"Water soluble polymers as corrosion inhibitors of mild steel in acidic medium", Pigment and Resin Technology, 35(6) :346-352.
[60]  Umoren, S. A. and Antia, B. S. (2006), "Rare Gaese: How useful are they?" School Science, 44(1): 45-52.
[61]  Israel, A. U., Umoren, S. A. and Akpabio, U. D. (2006), "Adsorption of unsubstituted phenol by polyvinyl acetate in aqueous solution", Bulletin of Pure and Applied Sciences. 25C (2): 83-89.
[62]  Umoren, S. A., Ogbobe, O. and Ebenso, E.E (2006) "Synergistic inhibition of aluminium corrosion in acidic medium by gum Arabic and halide ions", Trans SAEST, 41: 74-81.
[63]  Umoren, S. A, Umoudoh, A. J. and Akpabio, U. D. (2004) Conversion of agricultural wastes to cellulose derivatives", Bulletin of Pure and Applied Sciences. 23C (1): 9-13.
[64]  Ebenso E. E., Ekpe U. J., Ibok, U. J. Umoren, S. A., Jackson, Ekerette, Oforka, N. C. Abiola, O. K. and Martinez, S. (2004), "Corrosion inhibition studies of some plant extracts on aluminium in acidic medium". Transactions of SAEST, 39:117-123.
[65]  Umoren, S. A. and Ogbobe, O. (1997). Effect of kolanut filler on some mechanical properties of low density polyethylene (LDPE), Tropical Journal of Applied Sciences,7 (1&2): 17-19
[66]  Umoren, S. A., Ajibesin, K. K. and Bala, D. N. (2001). Physico-chemical properties of the seed and seed oil of Hura crepitans, Journal of Natural and Applied Sciences, 2: 73-76.
[67]  Umoren, S. A. and Akpabio, U. D. (2003). Effect of monoazodye on the mechanical properties of LDPE and Unplasticised PVC, Journal of Applied Sciences and Environmental Management. 7 (2): 55-58.
[68]  Umoren, S. A. (2005). Caladium bicolor and Dioscorea dumetorum starches as dual-purpose polymer additive". Journal of Applied Sciences and Environmental Management. 9(1): 75-78.
[69]  Akpan, E. J. and Umoren, S. A. (2005). Chemical composition of fresh and fermented wine from Raphia hookeri and Elaeis guinnesis, Journal of Applied Sciences, 8(3):4980-4987.
[70]  Umoren, S. A., Ajibesin, K. K. and Bala, D. N. (2006). Antibacterial activities of the leaf extract of Sida acuta, Global Journal of Medical Sciences, 5(2): 111-112.
[71]  Umoudoh, A. J., Johnson, A. S. and Umoren, S. A. (2006). Effect of plant exudates additives on some properties of urea formaldehyde adhesives, Journal of Applied Sciences, 9 (1):6197-6206
[72]  Israel, A. U. and Umoren, S. A., (2007). Physical properties of polymers prepared from simultaneous emulsion polymerization of acetoxyethene and ethyl-2-methylpropeonate, Integrated Journal of Sciences and Engineering, 6(1): 5-16.
[73]  Israel, A. U., Umoren, S. A. and Obot, I. B. (2007). Synthesis and characterization of heterogeneous polymer from vinyl acetate and ethylmethacrylate comonomers, Nigerian Journal of Polymer Science and Technology, 6(1):424-434.
[74]  Umoren, S. A. and Israel, A. U. (2008). Characterization of Polymer Mixtures Prepared from Simultaneous Emulsion Polymerization of Acetoxyethene and Ethyl-2-methylpropeonate by Infrared (IR) Spectroscopy, Integrated Journal of Sciences and Engineering, 7(1): 78-92.

Publications: Conferences/Workshops/Symposiums

[1]  S. A.Umoren and U. D Akpabio, Effect of monoazodye on the mechanical properties of LDPE and Unplasticised PVC. 25th International Conference of the Chemical Society of Nigeria, University of Calabar 23rd-27th September 2002.
[2]  S. A. Umoren, A. J. Umoudoh and U. D.Akpabio: Conversion of agricultural wastes to cellulose derivatives: Technical Conference of the Polymer Institute of Nigeria, Concorde Hotel Owerri, 29th-31st October 2003.
[3]  E. E. Ebenso, S. A. Umoren, E. Jackson and U. J. Ekpe: Synergistic effect of halide ions on the corrosion inhibition of aluminium and mild steel in acidic medium using gum Arabic. 2004 Annual Conference of Nigeria Corrosion Association 25th-27th March 2004, Shell Club, P/H. Rivers State
[4]  S. A. Umoren E. E. Ebenso, , "Effect of iodide ions on the corrosion inhibition of mild steel in H2SO4 using polyacrylamide", 17th Technical Conference Of The Polymer Institute of Nigeria, L. A. Kings, Port Harcourt, Rivers State, 23rd-24th November, 2006.
[5]  S. A. Umoren, E. E. Ebenso, "Studies of Anti-corrosive effect of Raphia hookeri exudates gum-Halide mixtures for aluminium corrosion in acidic medium", First International Conference on Environment Research, Technology and Policy (ERTEP), La Royal Palm Hotel, Accra, Ghana, July 16-19, 2007.
[6]  S. A. Umoren, E. E. Ebenso, "Blends of polyvinyl pyrrolidone and polyacrylamide as corrosion inhibitors for aluminium in acidic medium", First International Conference on Environment Research, Technology and Policy (ERTEP), La Royal Palm Hotel, Accra, Ghana, July 16-19, 2007.
[7]  S. A. Umoren, "Synergistic effect of iodide ions and polylvinyl pyrrolidone on the corrosion inhibition of mild steel in acidic medium".18th Technical Conference Of The Polymer Institute of Nigeria, Hill Station Hotel, Jos, Plateau State, 27th-29th October, 2007.
[8]  S.A Umoren, O.Ogbobe, I.O.Igwe and E.E.Ebenso "Inhibition of mild steel corrosion in acidic medium using synthetic and naturally occurring polymers and synergistic halide additives" 24th Annual congress of Chemical Society of Ethiopia, Addis Ababa, Ethiopia, 22nd-24th February, 2008
[9]  S.A Umoren ,I.B.Obot and E.E.Ebenso "Synergistic inhibition between naturally occurring exudates gums and halide ions on the corrosion of mild steel in acidic medium" 24th Annual congress of Chemical Society of Ethiopia, Addis Ababa, Ethiopia, 22nd-24th February, 2008
[10]  I.B. Obot，N. O. Obi-Egbedi, S. A. Umoren, "Antifugal drugs as corrosion inhibitors for aluminium in 0.1M HCl, 2009 DoD Corrosion conference, Washington D.C., USA, 10th-14th August, 2009.
[11]  S. A. Umoren, Y. Li, F. H. Wang, Comparative study of corrosion and corrosion inhibition of bulk nanocrystalline and coarse polycrystalline ingot iron in sulphuric acid solution, 16th Egyptian Corrosion Society Internal Conference, Plaza Hotel Alexandria, Egypt, 14-16 December, 2010