Issue 41, 2022

Preparation and controlled-release properties of a dual-response acidizing corrosion inhibitor

Abstract

In this study, HMSNs with a specific surface area of 900 m2 g−1 and a wall thickness of 50 nm were prepared by a soft template method. A cavity structure with a diameter of about 150 nm was constructed between the core and shell, and it had a mesoporous structure of 4.0 nm. Therefore, the core and shell particles have an ideal carrying capacity as a corrosion inhibitor carrier. Amino modified HMSNs and grafted ferrocene group to obtain FcHMSNs. Impregnation method and negative pressure method were used to load acidizing corrosion inhibitor, and nano-valves sensitive to REDOX potential and pH were used to block the mesopores of HMSNs. The acidizing inhibitor (DR-HMSNs@S-AFA) was completely encapsulated in micro/nano containers. The controlled release performance of DR-HMSNs@S-AFA acidizing inhibitor was studied. The results showed that the acidizing inhibitor with DR-HMSNs@S-AFA load could achieve rapid release under strong acidic conditions or a certain concentration of H2O2.

Graphical abstract: Preparation and controlled-release properties of a dual-response acidizing corrosion inhibitor

Article information

Article type
Paper
Submitted
22 Jul 2022
Accepted
14 Sep 2022
First published
22 Sep 2022
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2022,12, 27055-27063

Preparation and controlled-release properties of a dual-response acidizing corrosion inhibitor

Y. Zhitao, Y. Yuhua, Z. Haojie and M. Changrui, RSC Adv., 2022, 12, 27055 DOI: 10.1039/D2RA04540K

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