Published May 2019 | Version v1
Journal article Metadata-only

2-Mercaptobenzothiazole as a corrosion inhibitor for carbon steel in supercritical CO2-H2O condition

Creators

  • 1. Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074 (China)
  • 2. School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006 (China)

Description

The corrosion inhibition performance of 2-mercaptobenzothiazole (MBTH) for carbon steel in a CO2-H2O system was investigated by weight loss, surface analysis, electrochemical measurements, and quantum chemical calculations. Results showed that MBTH could effectively protect carbon steel from CO2 corrosion and inhibition efficiency of MBTH in supercritical CO2 was higher than that in non-supercritical CO2 situation. The differential capacitance curves revealed that excess positive charges would be on the surface of carbon steel in the supercritical-CO2 system while negative charges accumulated on carbon steel surface in non-supercritical CO2 condition. The adsorption model was proposed to explain the inhibition mechanism of MBTH.

Additional details

Identifiers

DOI
10.1016/j.apsusc.2019.01.113;
PII
S0169433219301199;

Publishing Information

Journal Title
Applied Surface Science
Journal Volume
476
Journal Page Range
p. 422-434
ISSN
0169-4332
CODEN
ASUSEE

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
55055512
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ADSORPTION; CAPACITANCE; CARBON DIOXIDE; CARBON STEELS; CORROSION; CORROSION INHIBITORS; CORROSION PROTECTION; ELECTROCHEMISTRY; PERFORMANCE; SURFACES
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; CHEMISTRY; ELECTRICAL PROPERTIES; IRON ALLOYS; IRON BASE ALLOYS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SORPTION; STEELS; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2019 Elsevier B.V. All rights reserved.