Biopolymer Xylan as a novel green corrosion inhibitor for AISI 5140 steel and copper in H2SO4 medium

IF 5.5 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-06-12 DOI:10.1016/j.jtice.2025.106225

Jilna Jomy , Deepa Prabhu

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引用次数: 0

Abstract

Background

AISI 5140 steel and copper, widely used in water cooling and desalination systems, are prone to corrosion in harsh environments. To address this, Xylan (XL) was studied as a novel green corrosion inhibitor in H₂SO₄ medium.

Methods

A custom design approach of Design of Experiments (DoE) was introduced to optimize key parameters. The inhibition performance was evaluated using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP), while surface morphology was examined through SEM and EDX analysis. The mechanism of inhibition of XL was explained using DFT studies.

Significant Findings

The developed model demonstrated the significance of medium concentration and temperature on inhibition efficiency. Experimental validation confirmed the model’s accuracy. For AISI 5140 steel, a maximum inhibition efficiency of 84.05 % was achieved at 0.1 M H₂SO₄, 0.25 g/L XL, and 50 °C. For copper, the highest efficiency of 77.15 % was observed at 0.1 M H₂SO₄, 0.25 g/L XL, and 50 °C. The results confirm XL’s potential as a sustainable corrosion inhibitor and highlight the effectiveness of the DoE approach in predicting inhibitor performance. This study underscores the viability of XL for corrosion protection in industrial applications.

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生物聚合物木聚糖在H2SO4介质中对AISI 5140钢和铜的新型绿色缓蚀剂

daisi 5140钢和铜广泛用于水冷却和海水淡化系统，在恶劣环境下容易腐蚀。为了解决这一问题，研究了木聚糖（XL）作为一种新型的绿色缓蚀剂在H₂SO₄介质中的作用。方法采用实验设计（design of Experiments, DoE）自定义设计方法对关键参数进行优化。通过电化学阻抗谱（EIS）和动电位极化（PDP）评价了其缓蚀性能，并通过扫描电镜（SEM）和EDX分析了其表面形貌。用DFT研究解释了抑制XL的机制。建立的模型显示了介质浓度和温度对抑制效率的影响。实验验证了模型的准确性。对于AISI 5140钢，在0.1 M H₂SO₄、0.25 g/L XL和50℃条件下，缓蚀效率最高，为84.05%。对于铜，在0.1 M H₂SO₄，0.25 g/L XL， 50℃条件下，效率最高，为77.15%。结果证实了XL作为可持续缓蚀剂的潜力，并强调了DoE方法在预测缓蚀剂性能方面的有效性。这项研究强调了XL在工业应用中防腐的可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.