Electrochemical Impedance Spectroscopy Analysis Research Articles

Improved Electrochemical Performance of Sm0.2Ce0.8O1.9 (SDC) Nanoparticles Decorated SrCo0.8Fe0.1Ga0.1O3−δ (SCFG) Fiber, Fabricated by Electrospinning, for IT-SOFCs Cathode Application

This paper examines the electrochemical and microstructural features of SrCo0.8Fe0.1Ga0.1O3-δ (SCFG) with a fibrous structure infiltrated by an SDC electrolyte for use as a cathode in solid oxide fuel cells (SOFCs). An electrospinning process is used to produce SCFG fibers. In a symmetrical cell, Sm0.2Ce0.8O1.9 (SDC) nanoparticles are infiltrated into the porous fibrous SCFG cathode layer after it was applied to the SDC dense electrolyte. Electrochemical impedance spectroscopy (EIS) analysis reveals that the polarization resistance of the SCFG cathode with fiber morphology is significantly lower than that of the same combination with powder morphology. In addition, it is shown that infiltration of SDC oxygen ion conductor nanoparticles enhanced electrochemical performance. The lowest value of polarization resistance, 0.03 Ω cm2 at 800 °C, is attained by the SCFG with a fibrous structure containing 14 wt% SDC nanoparticles.

Exploration, of magnetic sesquioxide nanocomposite as a potential electrode material for the fabrication of high energy density asymmetric supercapacitors

upercapacitor electrode materials with multiple redox-active sites and superior electrical conductivity are highly desirable for future energy storage devices in a cost-effective manner. Here, the nanocomposite (NC) based on the sesquioxides of iron oxide-chromium oxide (Fe2O3-Cr2O3) is synthesized by a one-step hydrothermal approach. Fe2O3-Cr2O3 NC electrode delivers a high specific capacity of 544.2 Cg−1 at the scan rate of 10 mV/s. Trasatti method reveals the charge storage mechanism of Fe2O3-Cr2O3 NC providing the total, outer, and inner capacity of 1118, 71.3, and 1047 Cg−1 respectively. In addition, the low solution resistance (RS) and charge transfer resistance (Rct) of 0.75 and 0.06 Ω respectively are being evaluated by Electrochemical Impedance Spectroscopy (EIS) analysis. Furthermore, the faradic charge–discharge curves with prolonged discharge time are achieved for the Fe2O3-Cr2O3 NC electrode material with the maximum specific capacity of 814 Cg−1 at the current density of 1 Ag−1 and the capacitive retention of 79.2 % is maintained after 5000 consecutive charge–discharge cycles. Hence, the asymmetric supercapacitor (ASC) device is being constructed using Fe2O3-Cr2O3 cathode and activated carbon (AC) anode, delivering a high energy density of 77.17 Wh kg−1 corresponding to the power density of 650 W kg−1.

Facile synthesis of microwave-etched Ti3C2 MXene/activated carbon hybrid for lithium-ion battery anode

In this study, we synthesized MXene hybrid electrodes using a novel strategy to generate a synergistic effect between the respective components. Initially, a few-layered Ti3C2 MXene was prepared via microwave-assisted in-situ etching. The AC to Ti3C2 MXene ratio is varied to be 10:0, 9:1, 8:2, and 7:3 in order to maximize electrochemical efficiency. As an anode material for LIBs, the hybrid AC_Ti3C2 (8:2) electrode exhibits the highest initial specific capacity of 1194.2 mAh/g discharged at a current density of 0.2 A/g and maintains over 841.8 mAh/g after 80 consecutive cycles (with a Coulombic efficiency of ∼100 %). An increase in the discharge capacity of the hybrid electrode from 750.5 to 881.9 mAh/g when the current density changed from 1 to 0.2 A/g suggests the excellent rate capability of the AC_Ti3C2 (8:2) hybrid electrode. Furthermore, electrochemical impedance spectroscopic analysis of AC_Ti3C2 (8:2) shows a low charge transfer resistance (Rct) of 8.52 Ω, indicating good conductivity of the hybrid electrode. The work presented here confirms that the AC can be used as an interlayer spacer in synthesizing Ti3C2 MXene hybrids and have excellent application prospects for the next-generation LIBs.

Non-enzymatic amperometric glucose sensing on CuO/mesoporous TiO2 modified glassy carbon electrode.

The present study illustrates the fabrication of a glucose sensing electrode based upon binary composite of copper oxide and mesoporous titanium dioxide on glassy carbon (CuO/TiO2/GCE). The X-ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis evidently showed the phase pure monoclinic CuO nanoparticles and anatase TiO2. N2 adsorption-desorption analysis verified the mesoporosity in TiO2 with specific surface area greater than 105 m2 g-1. Electrochemical impedance spectroscopic analysis proved the remarkable decrease in the charge transfer resistance and facilitation of electron transfer process on the fabricated electrode. The optimum weight ratio of CuO to TiO2 was 1 : 1, and the optimum potential was 0.6 V vs. saturated calomel electrode. The chronoamperometric measurements displayed a detection limit of 1.9 μM, and sensitivities of 186.67 μA mM-1 cm-2 and 90.53 μA mM-1 cm-2 in two linear ranges of 0.05 to 5.2 mM and 5.2 to 20 mM, respectively. The amperometric analysis further showed good reproducibility, high specificity and outstanding stability of the modified electrode.

Cellular metabolic activity and electrochemical stability assay of embedded oxidoreductase enzyme confined in the nanospace of a framework exoskeleton.

In the present study, we sought to reveal how embedding oxidoreductase enzymes in a metal-organic framework influences restoring the biofunctionality when encapsulated within zeolitic imidazolate framework (ZIF-8 and ZIF-90), wherein these biocomposites were explored for their cellular metabolic activity using the (3-(4,5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide) (MTT) assay on A549 lung cancer cells and NIH3T3 (mouse fibroblasts) cells. We chose two biocomposites, namely catalase-encapsulated ZIF-8 and ZIF-90, wherein the enzyme was encapsulated at varied loadings through a rapid self-triggered nucleation around the protein surfaces of the enzyme. Interestingly, this embedding pattern of catalase in both ZIF-8 and ZIF-90 depended on the surface chemistry of the enzyme. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy analysis revealed the stability of the encapsulated enzyme in the nanospace of the ZIF-8 and ZIF-90 frameworks. Investigation of the cellular metabolic activity by the MTT assay of Cat@ZIF-8 and Cat@ZIF-90 on the lung cancer cell A549 showed cell viability enhancement in the case of Cat@ZIF-8 at a higher percentage compared to that of Cat@ZIF-90. A similar metabolic activity assay was performed with the internalization of Cat@ZIF-90 for NIH3T3 (mouse fibroblasts) cells. The revealed difference between the MOF compounds was due to the nano-confinement effect in ZIF-8 compared to ZIF-90, which can accelerate the utilization in cellar metabolic activity.

Fabrication of InVO4/SnWO4 heterostructured photocatalyst for efficient photocatalytic degradation of tetracycline under visible light

In the present study, novel InVO4/SnWO4 nanocomposites with different concentrations of SnWO4 were successfully prepared using a facile hydrothermal technique and investigated employing a wide range of analytical methods for efficient photocatalytic degradation of tetracycline (TC). X-ray diffraction analysis showed the presence of the orthorhombic phases of both InVO4 and SnWO4 in the composite catalyst. Dispersion of SnWO4 nanoplates over the InVO4 nanosheets enhanced the synergistic interactions, improving the separation of charge carriers and their transfer. Furthermore, the formation of heterostructure expanded the absorption range and promoted visible light harvesting. The TC degradation efficiency of InVO4/SnWO4 nanocomposite (5 mg loading of SnWO4) reached 97.13% in 80 min under visible light, with the kinetic rate constants 5.51 and 7.63 times greater than those of pure InVO4 and SnWO4, respectively. Additionally, the scavenger results proved that hydroxyl radicals and holes played a significant role in the photodegradation of TC. Furthermore, the electrochemical impedance spectroscopy (EIS) and transient photocurrent response analysis showed enhanced e–/h+ partition efficiency. Thus, the formation of heterostructure with strong synergistic interactions can effectively transfer the excited charge carriers and shorten the reunion rate. Accordingly, the InVO4/SnWO4 nanocomposites exhibited remarkable photocatalytic performance due to the increased number of charge carriers on the surface.

A Comparative Study on The Electrochemical Properties of Hydrothermal and Solid-State Methods in The NCM Synthesis for Lithium Ion Battery Application

In this article, we report and compare the synthesis method of the active cathode materials based on nickel‐cobalt‐manganese (NCM) for lithium-ion battery application. We evaluate the hydrothermal and solid-state reaction method in NCM-622 synthesis, the material characterizations, and the battery performance. Based on the analytical results using X-ray diffraction (XRD), particles synthesized using hydrothermal and solid-state methods exhibit a highly crystalline NCM phase. NCM particles synthesized using solid-state reaction exhibit high-rate performance up to 10 C. The electrochemical impedance spectroscopy analysis shows that the charge transfer resistance (Rct) of NCM synthesized by the solid-state reaction (SSR) method was 25.9% lower than hydrothermal. Meanwhile, the ionic diffusivity of the SSR sample was 38.5% higher than the hydrothermal sample. These two factors lead to better performance when tested in a lithium-ion battery.

Boosting the Photoelectrochemical Performance of Au/ZnO Nanorods by Co-Occurring Gradient Doping and Surface Plasmon Modification.

Band bending modification of metal/semiconductor hybrid nanostructures requires low-cost and effective designs in photoelectrochemical (PEC) water splitting. To this end, it is evinced that gradient doping of Au nanoparticles (NPs) inwards the ZnO nanorods (NRs) through thermal treatment facilitated faster transport of the photo-induced charge carriers. Systematic PEC measurements show that the resulting gradient Au-doped ZnO NRs yielded a photocurrent density of 0.009 mA/cm2 at 1.1 V (vs. NHE), which is 2.5-fold and 8-fold improved compared to those of Au-sensitized ZnO and the as-prepared ZnO NRs, respectively. The IPCE and ABPE efficiency tests confirmed the boosted photoresponse of gradient Au-incorporated ZnO NRs, particularly in the visible spectrum due to the synergistic surface plasmonic effect of Au NPs. A gradient Au dopant profile promoted the separation and transfer of the photo-induced charge carriers at the electrolyte interface via more upward band bending according to the elaborated electrochemical impedance spectroscopy and Kelvin probe force microscopy analyses. Therefore, this research presents an economical and facile strategy for preparing gradient plasmonic noble NP-incorporated semiconductor NRs, which have excellent potential in energy conversion and storage technologies.

INVESTIGATION OF GOLD NANOPARTICLE MODIFICATION ON SCREEN PRINTED GOLD ELECTRODE BY ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY

ecently increasing attention has been paid to the development of highly sensitive and selective electrochemical sensors for accurate and cost-effective detection in various fields. In this study, gold nanoparticles (AuNPs) were electro-deposited onto screen printed gold electrode (SPGE) surfaces at different times to determine the optimum modification conditions. Determining the optimum modification for the SPGE surface, AuNP modification under −0.3 V potential with 2 mM HAuCl4 (in 0.5 M H2SO4) solution were investigated. In this case, for the optimum AuNP modification, electrochemical impedance spectroscopy (EIS) analysis was performed at the following deposition times: 30, 60, 90, 120, and 150 s. As a result of modeling the Nyquist graph obtained in the range of 10 kHz to 0.1 Hz with the EIS analysis based on the equivalent circuit model, the outcomes for each modification time were analyzed. After the modification with AuNPs, scanning electron microscope (SEM) images of the SPGE surfaces were discussed. As a result, the optimum deposition time was determined as 90 s by the analysis. This study can be used for electrochemical investigation and target detection in complex media in terms of AuNPs on SPGE surfaces with a detailed perspective for nanoparticle deposition.

A study of the influence of current ramp rate on the performance of polymer electrolyte membrane fuel cell

Durability and reliability are the key factors that prevent fuel cells from successful implementation in automotive sector. Dynamic load change is a common and frequent condition that the fuel cell has to undergo in automotive applications. Fuel cells are more sensitive to changes in load conditions and degrade based on load variation representing idling, rated power, and high power operating conditions. To examine the influence of dynamic load step on the fuel cell performance, two similar cells of active 25 cm2 was tested under two different load step for the same dynamic load cycle. The main difference in dynamic load cycle 2 was the ramp rate which was fixed as 0.1, 0.3, and 0.25 A/cm2/s for 0.2, 0.6, and 1.0 A/cm2 respectively. To investigate the degradative effects, polarization curves, electrochemical impedance spectroscopy, and field emission scanning electron microscopy were used. The results indicated that the degradation rate increased in both dynamic load cycles but however the impact of load change was comparatively minimal in dynamic load cycle 2. The total degradation in performance was 20.67% and 10.72% in dynamic load cycles 1 and 2 respectively. Fuel cell performance degraded in a manner that was consistent with the electrochemical impedance spectroscopy and cross-sectional analysis of field emission scanning electron microscopy. The results prove that the degradation rate is dependent on the load step and the number of load cycles. Severe catalyst degradation and delamination were observed in fuel cells operated under dynamic load cycle 1.

Nickel decorated on Platinum Confined in MXene as an Electrocatalyst for enhanced Electrooxidation of Methanol

The architecture and evaluation of a potent, cost-efficient anode catalyst for methanol oxidation reactions (MOR) have great significance in Direct Methanol Fuel Cells (DFMC) applications. In this study, Ni decorated Pt confined into the layers of 2D Transition metal carbides–MXenes were synthesized and used as electrocatalyst for MOR. Pt-Ni/MXene electrocatalyst was prepared via wet impregnation method utilizing NaBH4 as a reducing agent. The Pt-Ni/MXene nanocomposite formation was verified through XRD, SEM, EDX, TEM, and BET, XPS analysis. Cyclic voltammetry, Chronoamperometric, and electrochemical impedance spectroscopy analysis revealed the Electrochemical performance of Pt-Ni/MXene for electrooxidation of methanol. The synergistic effect of Ni decorated Pt and MXene nanoparticles offered improved durability (84.7 % of retention after 400 cycles) for the Pt-Ni/MXene electrocatalyst for MOR. The electrochemical performance of Pt-Ni/MXene was compared with Pt/MXene, a conventional Pt/C catalyst, and found to exhibit an eight-fold enhancement in catalytic efficiency for MOR in an acidic medium.

Cobalt free refractory high entropy alloys for total joint arthroplasty: In-vitro wear, corrosion and cytocompatibility evaluation

CoCrMo alloys are extensively used for bearing surfaces in total joint arthroplasty (TJA); however, Co poisoning remains a concern. Therefore, we propose a Co free refractory metal based high entropy alloys (RHEAs) for use in TJA. In this work, TiMoNbTaW based RHEA was prepared by arc melting. The alloy was further modified by Cr addition for improvement in wear, corrosion and cytocompatibility. X-ray diffraction revealed single bcc crystal structure where lattice constant decreased upon Cr addition. The improved hardness, yield strength and a ten-fold enhancement in wear resistance with Cr addition is ascribed to its severely distorted bcc lattice. In-vitro corrosion in Hank’s salt solution (HBSS) suggests superior thermodynamic stability and passivation of both RHEAs. Enhanced pitting resistance was seen upon Cr addition. Further, electrochemical impedance spectroscopy (EIS) analysis of the surface film showed an increase in film resistance by an order of magnitude attributed to the presence of Cr2O3 on the TiMoNbTaWCr surface as confirmed by X-Ray photoelectron spectroscopy (XPS) analysis after anodic passivation. Meanwhile, the live/dead imaging and MTT assay indicated good cell viability and proliferation of RHEAs. However, an enhanced cell adhesion and growth on TiMoNbTaWCr RHEA proves its potential applicability as a bearing surface in TJA.

MOFs-derived Mn/C composites activating peroxymonosulfate for efficient degradation of sulfamethazine: Kinetics, pathways, and mechanism

Both manganese oxides (MnOx) and carbon materials hold promise for persulfate activation to remediate polluted waterbodies. However, the aggregation of MnOx during the calcination synthesis and lower activity to persulfate of carbon materials seriously limit their industrial application. In this work, two Mn/C composites (MnOx-NA and MnOx-A) were synthesized from manganese-metal organic frameworks (MOFs) under nitrogen atmosphere and air atmosphere calcination respectively. The prepared MnOx-NA exhibited more excellent peroxymonosulfate (PMS) activation performance than MnOx-A, and almost 100% sulfamethazine (SMT) could be removed by the MnOx-NA/PMS system within 30 min. Moreover, the MnOx-NA/PMS system exhibited impressive stability even after 10 cycles and displayed high anti-interference ability to Cl−, ClO4−, CO32−, SO42−, NO3− and humic acid (HA). In addition, the oxidation system could efficiently remove SMT in different aqueous matrices. Three possible pathways of SMT degradation were proposed according to the LC-MS analysis. Electron paramagnetic resonance (EPR), quenching experiments, and cyclic voltammetry experiments revealed that SMT degradation predominantly occurred through a catalyst-mediated electron transfer pathway. Material characterization and electrochemical impedance spectroscopy (EIS) analysis showed that the derived carbon species strengthened the MnOx-NA's electron-transfer capability and promoted the uniform distribution of MnOx particles on the carbon materials surface, which significantly improved MnOx-NA's PMS activation performance. This study introduces a facile method for the design of Mn/C composites PMS activator and provides theoretical guidance for water pollution remediation.

Electrosynthesis of Low Pt‐Loaded High Entropy Catalysts for Effective Hydrogen Evolution with Improved Acidic Durability

The synergistic effect in multi‐metal electrocatalysts has gained attention as an efficient strategy for enhancing intrinsic electrocatalytic activities. In this study, a facile electrodeposition technique is used to synthesize a multi‐metal high entropy catalyst (HEC) for efficient electrocatalytic hydrogen production. To boost the synergistic effect between noble metals and transition metals, the Pt ratio is controlled in a multi‐metal electrocatalyst system. The prepared Pt‐involved HEC (Pt‐HEC) exhibits a bamboo‐like morphology with uniformly distributed elements. The 2.5 mM Pt‐HEC has outstanding electrocatalytic activity toward hydrogen evolution reaction (HER) among other Pt‐HECs, with a low overpotential of 70 mV and a Tafel slope value of 47 mV dec−1. Additionally, the Pt mass activity of the 2.5 mM Pt‐HEC is 5.6 times higher than commercial Pt/C electrocatalyst owing to the improved synergistic effect with an optimized Pt ratio. According to the electrochemical impedance spectroscopy (EIS) analysis, the proton‐coupled electron transfer (PCET) process occurs more quickly in the 2.5 mM Pt‐HEC electrocatalyst, confirming its smaller charge transfer resistance properties compared to those of the 5 and 1 mM Pt‐HEC. Therefore, HEC systems can be extensively encouraged as a platform for improving synergistic effects and enhancing electrocatalytic activities for a highly efficient HER electrocatalyst.

Verification of the Modified Degradation Mode Identification Technique by Employing Electrochemical Impedance Spectroscopy and Differential Voltage Analysis

For retired automotive lithium-ion batteries, state of health (SoH) is currently utilised to grade them for a second-life application. However, researchers previously challenged this and expressed that, in addition to SoH, the actual degradation mechanism, also known as degradation mode (DM), should be considered for grading, for efficient second-life operation. To date, there is little evidence to support this. A validated DM detection technique for cell/module grading does not exist. A modified DM detection technique by tracking and indexing the incremental capacity (IC) curves was previously proposed by the authors; nevertheless, it was difficult to validate. Researchers previously proposed DM identification using Electrochemical Impedance Spectroscopy (EIS) and Differential Voltage (DV) analysis. With a direct comparison of the techniques made exploiting IC, DV, and EIS, a correlation can be made, which is presented in this article. The correlation suggests that cells identified as having the same (or different) DM by the proposed technique also identified as having the same (or different) DM growth by EIS technique proposed by other researchers. Likewise, DV analysis suggests that the DV peak’s standard deviation of similar DM cells is smaller than that of the different DM cells.

A novel approach to determine cathodic passivation characteristics and semiconducting properties of pure aluminium 99.5 wt% and aluminium alloy 7075-T6 with an electrochemical pen electrode

Localised electrochemical impedance spectroscopy and Mott-Schottky analysis were carried out to investigate the electrochemical behaviour of pure aluminium 99.5 wt% and aluminium alloy 7075-T6. Functionally graded surface films were generated using a Hull cell set-up, with the nature of the resulting surface assessed as a function of cathodic current density. Defect donor densities, oxide thicknesses, and impedance moduli were determined, resulting in sub-mm to mm-sized response characteristics. Mott-Schottky analysis provided access to n-type characteristics in the cathodic polarisation regime and p-type behaviour towards the anodic polarisation direction. Electron microscopy analysis of the contact area revealed the occurrence of localised corrosion.

Insights into enhanced activity and durability of hierarchical Fe-doped Ni(OH)2/Ni catalysts for alkaline oxygen evolution reaction: In situ XANES studies

Nature of activation and degradation of NiFe layered double hydroxide (NiFe-LDH) and hierarchical Fe-doped Ni(OH)2/Ni has been explored using in situ X-ray absorption near edge structure (XANES) spectroscopy coupled with cyclic voltammetry (CV) in a potential range of 0–0.9 V (vs. Hg/HgO). A series of NiFe-LDH samples have been prepared by electrodeposition with varying Ni/Fe molar ratios from 99:1–16:84. Fe has been doped on Ni(OH)2 and anodized Ni as Fe-Ni(OH)2 and Fe-ANi, respectively. CV and electrochemical impedance spectroscopy (EIS) analysis confirm the degradation of NiFe-LDH due to the redox irreversibility of Ni(OH)2/NiOOH. On the other hand, hierarchical Fe-doped Ni(OH)2/Ni shows not only high activity but also stability in alkaline OER. In situ XANES analysis demonstrated that the phase of Ni is maintained with Ni2+ in Fe-ANi, while the phase of Ni2+ changes to Ni3.6+ in NiFe-LDH, contributing to durable OER performance of Fe-ANi even under potential fluctuations.

On the use of a constant phase element (CPE) in electrochemistry

Several techniques can be used to experimentally determine the interfacial capacitance of an electrode, which is a crucial parameter used for quantifying the efficiency of supercapacitors. However, the values obtained from cyclic voltammetry can be significantly different from those extracted from electrochemical impedance spectroscopy analysis. This is particularly due to the fact that the interface does not behave like an ideal (i.e., frequency independent) capacitor, and requires the adoption of a constant phase element (CPE). In this article, we present the state of the art on this apparent difference and on the error that can result from one or the other technique using CPE analysis.

The enhanced PdAuPt-nitrogen-doped graphene/ITO anode electrodes for electrooxidation of glucose in alkaline medium

The chemical vapor deposition (CVD) method was used to synthesize nitrogen-doped graphene (N-G). N-G coated on Cu foil via CVD method was transferred onto indium tin oxide (ITO). Finally, Pd, Au, and Pt metals were electrochemically doped on the N-G/ITO electrode surface. Surface properties and elemental composition analyses were performed with the obtained electrodes by scanning electron microscope-energy dispersive X-ray (SEM-EDX) and mapping. The results of this analysis indicated that both N-doped G and metals were formed on the ITO surface. The catalytic activity, stability, and resistance of the electrodes for glucose (Glu) electrooxidation were investigated by cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS) analyses, respectively. The PdAuPt–N-G/ITO electrode exhibited a more active surface area and catalytic activity than the PdAu–N-G/ITO electrode, with a specific activity of 9.50 mA/cm2 and an electrochemical active surface area (ECSA) of 61.21 m2/g. In addition, CA and EIS analyses showed that it was more stable and has faster electron transfer with a lower Rct (143.5 Ω) value. In the light of these results, it can be said that the obtained electrode is promising for glucose electrooxidation.

Preparation of textured epoxy resin coatings for excellent hydrophobicity and corrosion resistance

Because of the severe corrosion of marine structural steel under the splash zone, it is proposed to prepare surface textures in widely used epoxy resin (ER) coatings to improve the hydrophobicity and corrosion resistance. However, the surface texture preparation technology of organic coatings is flawed and needs to be improved. Template method, one of the textured preparation technologies of organic coatings, has the trouble that the air bubbles, which diminish the coating quality. In this paper, the method of curing at room temperature and vacuum treatment is used to reduce the generation of air bubbles. Scanning electron microscope (SEM) images show the complete morphology and texture dimensions of the textured ER coatings. The hydrophobic properties of the textured ER coatings were systematically investigated, the contact angles of the textured ER coatings were significantly improved, and all the textured ER coatings samples met the hydrophobic criteria. And the wetting state model of the textured ER coatings was determined by modifying the Wenzel wetting mode. Furthermore, the electrochemical impedance spectroscopy (EIS) analysis of the textured ER coatings shows that the corrosion resistance is improved by two orders of magnitude compared to the smooth ER coatings. That shows excellent corrosion resistance, and the effect of the texture parameters on the corrosion resistance and hydrophobic properties of the textured ER coatings showed a high degree of consistency. The preparation technology of surface textured coatings has great potential in the preparation and application of marine anti-corrosion organic coatings.