Dr. Manohar Rathod
@kscd.ac.in
Department of Chemistry
Karnatak Science College Dharwad
I am a Teaching Assistant at the Department of Chemistry, Karnatak Science College, Dharwad.
EDUCATION
M.Sc. B.Ed. Ph.D.
RESEARCH, TEACHING, or OTHER INTERESTS
Materials Chemistry, Surfaces, Coatings and Films, Metals and Alloys, Engineering
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Savitri Danappa Kotabagi, Ragini L. Minagalavar, S.K. Rajappa, Manohar R. Rathod, Ashok M. Sajjan, and J.G. Suma
Elsevier BV
R L Minagalavar, M R Rathod, S K Rajappa, and al et
Portuguese Society of Electrochemistry
Savitri Danappa Kotabagi, Ragini L. Minagalavar, Rajappa S.K, Manohar R. Rathod, and Ashok M. Sajjan
Elsevier BV
Shashirekha K, Shubhrajyotsna Aithal, Praveen B.M, Pavithra M.K, A.M. Guruprasad, Bharath K. Devendra, and Manohar R. Rathod
Elsevier BV
Ragini L. Minagalavar, S.K. Rajappa, Manohar R. Rathod, and Ashok M. Sajjan
Elsevier BV
Geeta D. Pai, Manohar R. Rathod, Rajappa S K, and A.A. Kittur
Elsevier BV
Ragini L. Minagalavar, S.K. Rajappa, Manohar R. Rathod, and Ashok M. Sajjan
Elsevier BV
Ragini L. Minagalavar, S.K. Rajappa, Manohar R. Rathod, and Ashok M. Sajjan
Elsevier BV
Ragini L. Minagalavar, S. Rajappa, Manohar R. Rathod and A. M. Sajjan
CSIR-National Institute of Science Communication and Policy Research (NIScPR)
Laurus Tamala leaves extract (LTLE) has been employed as a soft steel corrosion inhibitor in a 1M Hydrochloric acid media. Chemical (weight loss) and electrochemical investigations were carried out to assess the corrosion rate and percentage inhibition efficiency of the extract. The electrochemical polarization results have demonstrated that plant leaves extract functions as a mixed type inhibitor. The stability of the inhibitor is tested at elevated temperatures by weight loss method. The corrosion inhibition mechanism is interpreted through adsorption mechanism, and the LTLE components has obeyed the Langmuir adsorption isotherm for soft steel. The interaction of the components of the extract is assessed through FT-IR technique. The surface morphology, roughness and hydrophobicity in presence and absence of the extract have been characterized through SEM, AFM and water contact angle techniques respectively. The highest inhibitory efficiency is 96.21% for 24 h as recorded by weight loss method. Additionally, the DFT computations has revealed the inhibitor’s adsorption through electron donor-acceptor interactions.
Manohar R. Rathod and S. K. Rajappa
Wiley
AbstractThe mass‐loss, polarization tests, and electrochemical impedance spectroscopic strategies were applied to assess the inhibition performance of the environmentally friendly inhibitor Araucaria heterophylla leaves extract (AHLE) for soft‐cast steel corrosion safety in 1 M HCl at 300 ± 1 K. The environmentally friendly inhibitor creates a protective coat on soft‐cast steel that decelerates the corrosion process in acidic environments. The percentage inhibition effectiveness, corrosion current density, corrosion potential, cathodic and anodic Tafel slopes are being assessed. The outcomes of chemical and electrochemical research are almost similar. The inhibitor's inhibition activity was well illustrated by the AHLE adsorption on soft‐cast steel follows the Langmuir adsorption isotherm. According to the study, AHLE is a mixed kind of inhibitor. Experiments were conducted with varying inhibitor amounts and temperatures. The calculated values were in the range of −33.75 to −34.40 kJ/mol, which discloses the corrosion inhibitory action is exothermic and spontaneous. Scanning electron microscopy, Fourier transform infrared spectroscopy, and contact angle techniques were used to determine the association of the AHLE on the metal surface.
Manohar R. Rathod, S.K. Rajappa, Ragini L. Minagalavar, B.M. Praveen, Bharath K. Devendra, and A.A. Kittur
Elsevier BV
Manohar R. Rathod, R.L. Minagalavar, and S.K. Rajappa
Elsevier BV
Manohar R. Rathod and S. K. Rajappa
Wiley
AbstractThe inhibition action of environmentally sustainable inhibitor Cycas revoluta leaves extract (CRLE) for corrosion protection of soft‐cast steel in a solution of HCl was assessed with electrochemical and chemical methods. The eco‐friendly inhibitor forms a thin coating on soft‐cast steel and slows the corrosion in acid media. The percent inhibition performance, corrosion current density, corrosion potential, and both anodic and cathodic slopes for Tafel were calculated. The results for electrochemical and chemical research are in beneficial correlation with each other. The inhibitor's inhibitory ability was well illustrated by the CRLE adsorption on soft‐cast steel followed the Langmuir isotherm. The investigations reveal that CRLE is a mixed form of inhibitor. Studies were performed with varying inhibitor amounts and temperatures. Thermodynamic parameters were calculated, and it shows that the corrosion inhibition effect is spontaneous and exothermic. The interaction of the plant extract was characterized by SEM, FTIR, contact angle measurements, and AFM techniques.
Manohar R. Rathod, S.K. Rajappa, and A.A. Kittur
Elsevier BV
Manohar R. Rathod, S.K. Rajappa, B.M. Praveen, and D.K. Bharath
Elsevier BV