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Corrosion inhibition of honeycomb waste extracts for 304 stainless steel in sulfuric acid solution

Corrosion inhibition of honeycomb waste extracts for 304 stainless steel in sulfuric acid solution
Corrosion inhibition of honeycomb waste extracts for 304 stainless steel in sulfuric acid solution
The extract of honeycomb waste was studied as a corrosion inhibitor on 304 stainless steel in H2SO4 solutions. The honeycomb waste was obtained from beekeeping at Lawang-Malang, East Java, Indonesia. Electrochemical and scanning electron microscopy methods were used to investigate the performance of the corrosion inhibition process. The inhibition efficiency of the inhibitor (2000 mg/L) reached 97.29% in 0.5 M H2SO4 and decreased with the acid concentration. Kinetic parameters were calculated to explain the effect of acid concentration on the inhibition process. The study on the adsorption behavior of the extracts followed the Frumkin isotherm model. The adsorption of the inhibitor on the 304 stainless steel surface was confirmed by the negative and lower values of Gibbs free energy. The obtained scanning electron microscopy (SEM) images were confirmed by comparing the surface of the specimens with and without inhibitor after corroding for one week. The results indicated that the extract acted as a good inhibitor for 304 stainless steel in acid corrosion.
Gapsari, Femiana
e1ff99d7-1a62-4788-9ad8-adc585bc7000
Madurani, Kartika A.
8e744ea9-9438-440b-b1ad-de4d4c719a71
Simanjuntak, Firman Mangasa
a5b8dd07-002c-4520-9f67-2dc20d2ff0d5
Andoko, Andoko
0a027663-ff25-48f0-a0d5-2a32f78d7404
Wijaya, Hastono
427c35f1-1a84-4005-9c55-3763b555b4b0
Kurniawan, Fredy
63339176-fe34-4e38-a269-1cb4ed90fdfc
Gapsari, Femiana
e1ff99d7-1a62-4788-9ad8-adc585bc7000
Madurani, Kartika A.
8e744ea9-9438-440b-b1ad-de4d4c719a71
Simanjuntak, Firman Mangasa
a5b8dd07-002c-4520-9f67-2dc20d2ff0d5
Andoko, Andoko
0a027663-ff25-48f0-a0d5-2a32f78d7404
Wijaya, Hastono
427c35f1-1a84-4005-9c55-3763b555b4b0
Kurniawan, Fredy
63339176-fe34-4e38-a269-1cb4ed90fdfc

Gapsari, Femiana, Madurani, Kartika A., Simanjuntak, Firman Mangasa, Andoko, Andoko, Wijaya, Hastono and Kurniawan, Fredy (2019) Corrosion inhibition of honeycomb waste extracts for 304 stainless steel in sulfuric acid solution. Materials, 12 (13), [2120]. (doi:10.3390/ma12132120).

Record type: Article

Abstract

The extract of honeycomb waste was studied as a corrosion inhibitor on 304 stainless steel in H2SO4 solutions. The honeycomb waste was obtained from beekeeping at Lawang-Malang, East Java, Indonesia. Electrochemical and scanning electron microscopy methods were used to investigate the performance of the corrosion inhibition process. The inhibition efficiency of the inhibitor (2000 mg/L) reached 97.29% in 0.5 M H2SO4 and decreased with the acid concentration. Kinetic parameters were calculated to explain the effect of acid concentration on the inhibition process. The study on the adsorption behavior of the extracts followed the Frumkin isotherm model. The adsorption of the inhibitor on the 304 stainless steel surface was confirmed by the negative and lower values of Gibbs free energy. The obtained scanning electron microscopy (SEM) images were confirmed by comparing the surface of the specimens with and without inhibitor after corroding for one week. The results indicated that the extract acted as a good inhibitor for 304 stainless steel in acid corrosion.

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Published date: 1 July 2019

Identifiers

Local EPrints ID: 448739
URI: http://eprints.soton.ac.uk/id/eprint/448739
PURE UUID: af07787f-0081-4cc3-ab9f-624fadccff51

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Date deposited: 04 May 2021 16:38
Last modified: 23 Aug 2021 16:30

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Contributors

Author: Femiana Gapsari
Author: Kartika A. Madurani
Author: Firman Mangasa Simanjuntak
Author: Andoko Andoko
Author: Hastono Wijaya
Author: Fredy Kurniawan

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