A facile single-step synthesis was performed to cross-link chitosan with thiocarbohydrazide to yield thiocarbohydrazide-chitosan (TC-Cht) which was for the first time evaluated as an inhibitor for corrosion of stainless steel in 3.5% NaCl solution. A comprehensive electrochemical analysis employing electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), and cyclic voltammetry (CV) was undertaken and showed that the TC-Cht acts by adsorption on the steel surface and exhibits mixed type behavior with predominantly cathodic nature. The adsorption of TC-Cht molecules on the surface of stainless steel followed the Langmuir isotherm. The TC-Cht showed a high inhibition efficiency of >94% at 500 mg L⁻¹ concentration. Surface investigation using SEM and EDX supported the inhibitor adsorption on the steel surface.

进行了简便的单步合成，将壳聚糖与硫代碳酰肼交联，生成了硫代碳酰肼-壳聚糖（TC-Cht），该化合物首次被评估为在3.5％NaCl溶液中腐蚀不锈钢的抑制剂。进行了使用电化学阻抗谱（EIS），电势极化（PDP）和循环伏安法（CV）的全面电化学分析，结果表明TC-Cht通过吸附在钢表面上起作用，并表现出主要是阴极性质的混合型行为。TC-Cht分子在不锈钢表面的吸附遵循Langmuir等温线。TC-Cht在500 mg L ^-1时显示出大于94％的高抑制效率浓度。使用SEM和EDX进行的表面研究支持抑制剂在钢表面的吸附。