The corrosion inhibition of mild steel in HCl solution in the presence of Ipomoea batatas peel extract (IBPE) at a temperature range of 30°C to 60°C was studied using the chemical weight loss method. The IBPE acts as an inhibitor in the acid environment. The inhibition efficiency (IE) increases with increase in inhibitor concentration but decreases with an increase in temperature and concentration of acid. 93.96%, 89.99% and 85.61% IE were obtained at 6.67 g/L extract in 0.5, 1.5 and 2.5M acid media respectively at temperature of 30°C. 84.86%, 83.99% and 81.13% IE were obtained at 6.67 g/L extract in 0.5, 1.5 and 2.5M acid media respectively at temperature of 40°C. Also 78.92%, 76.21% and 75.73% IE were obtained at 6.67 g/L extract in 0.5, 1.5 and 2.5M acid media respectively at temperature of 50°C, while 71.45%, 69.87% and 66.00% IE were obtained at 6.67g/L extract in 0.5, 1.5 and 2.5M acid media respectively at temperature of 60°C. The inhibitive effect of the IBPE could be att.....

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The study investigates the effect of carbonization temperature of palm kernel shell (PKS) biomass, with a view to obtaining char suitable for electrode material. Char were obtained from palm kernel shell by carbonization at temperatures of 600, 800, 1000 and 1150 °C under inert condition for 60 mins each. The effect of carbonization temperature on proximate and ultimate, electrical conductivity, structural and morphological properties was investigated using the ASTM standard method for examination of coal and coke, elemental analyzer, four-point probe, x-ray diffractometer (XRD), Fourier transform infrared (FTIR) spectrometer and scanning electron microscope (SEM). The proximate analysis results showed the char yield to decrease from 29.68 % to 25.27 % as the temperature increases from 600 °C to 1150 °C. While the fixed carbon content in the raw sample was found as 22.22 %, it increases to 73.02 % in char obtained at 600 °C with highest value of 87.45 % obtained at 1150 °C. The vo.....

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