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Ground coffee waste as a green corrosion inhibitor for mild steel in hcl solution via electrochemical impendance spectroscopy (eis) and weight loss / Muhammad Amjad Bin Mohd Faris

By:

Muhammad Amjad Bin Mohd Faris, , , [author.]

Material type: Text

text

Media type:

unmediated

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volume

ISBN:

THE0010900 (Local)

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Dissertation note: Final Year Report (Bachelor of Technology Mechanical Engineering (Petroleum) with Hons ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025 Abstract: Corrosion in industrial applications, particularly with mild steel in acidic environments, offers considerable issues in terms of safety, maintenance costs, and environmental impact. Traditional corrosion inhibitors may use hazardous substances that raise questions about sustainability. The application of ground coffee waste (GCW) as an environmentally acceptable, sustainable, and reasonably priced green corrosion inhibitor for mild steel in 0.5 M HCl solution is investigated in this work. Rich in bioactive substances like polyphenols, tannins, and caffeine, GCW was used to create protective films on the metal surface, which slowed the rate of corrosion. Electrochemical impedance spectroscopy (EIS) and weight loss measurements were used to assess GCW's efficacy as a corrosion inhibitor. Results demonstrated that GCW solutions at concentrations of 3000, 6000, and 9000 ppm considerably decreased corrosion rates, with the maximum inhibitor efficiency of 92% recorded at 9000 ppm. The findings imply that GCW, a sustainable consequence of coffee consumption, has tremendous potential as a green corrosion inhibitor, harmonizing with environmental and economic sustainability goals.

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Holdings
Item type	Current library	Call number	Status	Date due	Barcode
Final Year Report	UMPLIB GAMBANG	FTKKP .A3 2025 r Bc. (Browse shelf(Opens below))	Not for loan		T000004409

Faculty of Chemical and Process Engineering Technology

Final Year Report (Bachelor of Technology Mechanical Engineering (Petroleum) with Hons ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025

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Corrosion in industrial applications, particularly with mild steel in acidic environments, offers considerable issues in terms of safety, maintenance costs, and environmental impact. Traditional corrosion inhibitors may use hazardous substances that raise questions about sustainability. The application of ground coffee waste (GCW) as an environmentally acceptable, sustainable, and reasonably priced green corrosion inhibitor for mild steel in 0.5 M HCl solution is investigated in this work. Rich in bioactive substances like polyphenols, tannins, and caffeine, GCW was used to create protective films on the metal surface, which slowed the rate of corrosion. Electrochemical impedance spectroscopy (EIS) and weight loss measurements were used to assess GCW's efficacy as a corrosion inhibitor. Results demonstrated that GCW solutions at concentrations of 3000, 6000, and 9000 ppm considerably decreased corrosion rates, with the maximum inhibitor efficiency of 92% recorded at 9000 ppm. The findings imply that GCW, a sustainable consequence of coffee consumption, has tremendous potential as a green corrosion inhibitor, harmonizing with environmental and economic sustainability goals.