JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 3
·1810-1832
·
IF 4.682
Cen Hongyu,Wu Chonggang,Chen Zhenyu
Extension of corrosion inhibitors from traditional molecular-scale to nanoscale will not only be significant to develop green and efficient inhibitors, but also supplement the discipline system of corrosion inhibitors. However, many research on the interfacial behavior of nano-inhibitors have ignored the special colloidal properties of nanoparticles and show no obvious differences with traditional inhibitors. In this study, graphene oxide (GO) was functionalized with polydopamine (PDA) via covalent modifications and self-polymerization, and GO-PDA was studied as a corrosion inhibitor of carbon steel in HCl solution. Diversified measurements confirmed that GO-PDA can effectively protect carbon steel from corrosion, and the inhibition efficiency almost reached 90% at 100 mg/L. Interfering factors including immersion time and concentration were investigated. The lamellar nanoparticles adsorbed on the surface of carbon steel have formed a hydrophobic film in micro-nano structures. The transition from a negative charge on the GO surface to a positively charged GO-PDA contributed to adsorption at the interface. An initial model of nano-inhibitor was established to explicate the inhibition mechanism. Graphical abstract
研究领域:
材料科学
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腐蚀科学
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Yuchen Yao,Yanqin Shi,Jiachao Mei,Jingzhe Zhang,Si Chen,Meng Ma,Huiwen He,Yulu Zhu,Xu Wang
Three efficient and environmentally friendly double-anion zinc salts—zinc p-tert-butylbenzoate arginine (PAZA), zinc benzoate arginine (BZA), and zinc p-nitrobenzoate arginine (NAZA)-were designed and synthesized. This study elucidated how the substituent groups in these benzoic acid derivatives influence the thermal stability of PVC. Structural confirmation of the synthesized salts was carried out using FTIR, XPS, TGA, and DSC. The Congo red test, as well as static and dynamic thermal aging tests, revealed that PAZA, BZA, and NAZA significantly outperformed single-anion zinc salts in stabilizing PVC. The superior performance was attributed to a dual mechanism: the progressive replacement of unstable chlorine atoms by two types of anions and the complexation of ZnCl 2 and scavenging of HCl by amino groups. Furthermore, Gaussian calculations and Hansen solubility parameters were employed to investigate the dissociation energy of benzoic acid-derived anions from zinc and their compatibility with the PVC matrix.
研究领域:
高分子化学
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材料科学
·
环境友好材料
·
热稳定剂
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功能添加剂
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Min Zheng,Mingzhen Shi,Xingbang Hu,Zhuoheng Tu,Youting Wu
Efficient separation and recovery of hydrogen chloride (HCl) from HCl tail gas containing impurities such as sulfur dioxide (SO 2 ) is very important from the viewpoint of economy and environment. However, due to the similar dissolution ability of SO 2 and HCl , most solvents, including organic solvents, ionic liquids and deep eutectic solvents (DESs), show low SO 2 /HCl selectivity near 1.0 and are thus incompetent to separate SO 2 /HCl. To address this, we firstly reported the task-specific design of a novel class of protic metal-based DESs (PM-DESs) containing hydrochloride, metal chloride and sulfolane, which have good SO 2 affinity but much inhibited HCl uptake, for the separation of HCl/SO 2 . The solubility data of SO 2 and HCl in PM-DESs were determined and correlated by Krichevsky-Пiinskaya (K-I) equation. Among these PM-DESs, N,N -dimethylaniline hydrochloride (DMA·HCl) + zinc chloride (ZnCl 2 ) + sulfolane exhibits satisfactory recyclability and selectivity up to 2.669 (100 kPa, 313.2 K), which is the highest value reported so far. Absorption of HCl/SO 2 (50/50) mixed gas was also tested, with a high SO 2 /HCl selectivity of 3.250 obtained. In addition, the NMR and FTIR spectroscopic characterizations paired with quantum chemistry calculation were utilized to investigate the absorption mechanism from the perspective of atomic level. The DESs developed in the present work have the potential to separate and recycle HCl from SO 2 owing to their good selectivity and desirable reversibility, and the strategy proposed in this work may offer new guidance for designing green media for HCl recovery.
研究领域:
化学工程
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环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2021
·
IF 3.882
Liang Pan,Guoxi Li,Zhaoyang Wang,Dongbao Liu,Weikang Zhu,Chunyi Tong,Rilong Zhu,Shilin Hu
To reduce the corrosion of Q235 steel, environment-friendly and efficient N-doped carbon dots (N-CDs) were synthesized using 4-amino salicylic acid (4-ASA) and l-histidine (l-His) as precursors. The corrosion inhibition behavior of N-CDs for Q235 steel in 1 M HCl solution was systematically investigated using a weight-loss experiment, an electrochemical test, and corrosion morphology. Results showed that N-CDs could effectively inhibit the corrosion of Q235 steel, and the inhibitory efficiency reached 93% at 50 mg L–1. Quantum chemistry and molecular dynamics were used to study the inhibition mechanism of N-CDs. The results demonstrated that N-CDs exhibited a strong adsorption force on metal and the adsorption process followed the Langmuir adsorption isotherm, indicating physical/chemical mixed adsorption.
研究领域:
材料科学
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环境科学
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电化学
✓ 已验证
DOI
高影响因子
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
·
2015
·Vol. 14
·期 6
·1197-1206
·
IF 2.267
Li Zhi,Ou-Yang Ya,Liu Yang,Wang Yi-Qiu,Zhu Xia-Li,Zhang Zhen-Zhong
Recently, porous carbons have showed great potential in many areas. In this study, TiO 2 -doped mesoporous carbonaceous (TiO 2 @C) nanoparticles were obtained by a simple one-pot hydrothermal treatment, folic acid (FA) was conjugated to TiO 2 @C through an amide bond, then Mitoxantrone HCl (MTX) was adsorbed onto TiO 2 @C-FA and a drug delivery system, TiO 2 @C-FA/MTX was obtained. TiO 2 @C-FA/MTX showed a much faster MTX release at pH 4.5 than at pH 6.0 and pH 7.4. Furthermore, compared with free MTX, this drug delivery system showed a dose-dependent cytotoxicity by varying the irradiance, and afforded higher antitumor efficacy in cultured PC3 cells in vitro . The ability of TiO 2 @C-FA/MTX to combine chemotherapy with photodynamic activity enhanced the cancer cell killing effect in vitro , demonstrating that TiO 2 @C-FA/MTX has a great potential for cancer therapy in the future.
研究领域:
材料科学
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肿瘤学
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药剂学
✓ 已验证
DOI
PubMed
高影响因子
CORROSION
·
2013
·Vol. 69
·期 7
·672-680
·
IF 1.772
Jiang Y.Y.,Chen Y.,Ye Z.Y.,Chen H.,Zhang Z.,Zhang J.Q.,Cao C.N.
N-[2-[(2-aminoethyl) amino] ethyl]-9-octadecenamide (AAOA) has been synthesized in the lab, then tested as an effective and economic acid inhibitor for A3 steel in an acid medium with electrochemical techniques (electrochemical impedance and polarization curve). The results show that AAOA acts as a good mixed-type inhibitor for A3 steel in 1 M hydrochloric acid (HCl) solution, and the inhibition efficiency reaches 94% at the concentration of 200 mg/L. The corrosion current density of A3 steel increases with the increasing temperature from 20°C to 60°C. Meanwhile, Langmuir isotherm is found to provide the description of the adsorption behavior of AAOA, and the value of adsorption free energy (ΔG 0 ) is as low as low as −37.3 kJ/mol. One can assume the adsorption of inhibitor molecules on the metal surface is by chemisorption, which has been understood taking into account some other adsorption parameters (ΔH 0 , ΔS 0 ) and the activation parameters (E a , ΔH * , ΔG * ).
研究领域:
材料科学
·
腐蚀与防护
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2020
·
IF 6.155
Yuwei Ye,Zilong Jiang,Yangjun Zou,Hao Chen,Shengda Guo,Qiumin Yang,Liyong Chen
An eco-friendly and effective corrosion inhibitor (N-CDs) was acquired by hydrothermal method in methacrylic acid and ethyl(methyl)amine precursors. Afterwards, the weight loss and electrochemistry measurement were chosen to appraise the corrosion inhibition behavior of as-prepared N-CDs for Q235 steel in Cl − contained solutions. The change rules of EIS and Tafel data displayed that the as-prepared N-CDs revealed a high-efficiency protection for steel in all test environments. Meanwhile, the inhibition efficiency of steel reached up to 93.93 % (1 M HCl) and 88.96 % (3.5 wt% NaCl) at 200 mg/L of N-CDs. Furthermore, the N-CDs could form the adsorption film on steel surface to avoid the strong attack of Cl − . By analysis, the adsorption mechanism of as-prepared N-CDs on steel surface was physicochemical interaction , which strictly complied with the Langmuir adsorption model in both solutions.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2025
·
IF 5.2
Zhikun Wang,Wentao Qu,Yunchao Peng,Jianqiang Zhang,Songqing Hu
The synergistic adsorption of carbon dot and chitosan on metal-corrosive solution interface remains complex and elusive due to their distinct architecture and chemistry. Here, copper-doped carbon dot (CuCD) and pyridine-grafted chitosan (CS-4PCA) are designed as a synergistic corrosion inhibition duo in 15 % HCl. Weight loss tests showed that the optimal CuCD (200 mg/L) and CS-4PCA (200 mg/L) individually achieved inhibition efficiencies of 67.66 % and 73.27 %, respectively. Remarkably, their binary mixture (150 mg/L CuCD + 50 mg/L CS-4PCA) exhibited a synergistic efficiency of 83.27 %, surpassing the performance of either component at the same total concentration. The addition of benzotriazole (200 mg/L) further enhanced the efficiency to 92 %. Surface characterization revealed that the CuCD/CS-4PCA composite film reduced the surface roughness of N80 steel from 32.27 μm (blank) to 8.01 μm, forming a compact protective layer. Molecular dynamics simulations demonstrated that CuCD adsorbed parallel to the Fe surface, while CS-4PCA chains filled the gaps, synergistically inhibiting corrosive particle penetration. This work provides insights into the design of high-performance compound inhibitors for harsh acidic environments.
研究领域:
材料科学
·
腐蚀与防护
·
表面化学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Shuting Wei,Dan Yang,Renquan Guan,Peng Xu,Yuxin Wang,Yingmin Teng,Aicen Li,Junkai Zhang,Huaqiao Tan,Lili Wang,Zheng Lou,Wenjuan Zhang,Zhao Zhao
Hydrogen chloride (HCl) gas is widely generated in industrial processes and poses significant risks to human health and ecosystems. Therefore, highly efficient and sensitive sensors are essential for its detection. Among existing HCl gas sensors, chemiresistive sensors based on metal oxide semiconductors (MOSs) have gained considerable interest owing to their structural simplicity, low cost, and ease of miniaturization. However, these sensors often suffer from limitations such as slow response, low selectivity, and high operating temperatures. In this study, we successfully synthesized gas-sensing materials enriched with crystal defects and bulk strain through high-pressure torsion (HPT) technology. These modifications provide additional active sites for gas adsorption and reaction, and induce crystal field distortion that tunes the electronic structure, ultimately enhancing the HCl sensing performance. The optimal sample, ZnO-300R 3/2 , exhibited a response value of 213.79 % toward 100 ppm HCl gas, which is 14.6 times higher than that of the pristine ZnO. Combining spectroscopic analysis with density functional theory (DFT) calculations, we clarified the synergistic mechanism between electronic band structure modulation and surface lattice oxygen activation. This work provides valuable insights for designing novel room-temperature gas sensors and promotes a deeper understanding of surface lattice oxygen-mediated sensing mechanisms.
✓ 已验证
产品关联
DOI
高影响因子
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
·
2025
·
IF 1.9
Weiping Zheng,Lifeng Hao
This research addresses the need for effective corrosion inhibitors in industrial applications, evaluating the performance of 4-nitro-2-(((1E,2E)-3-phenylallylidene)amino)aniline (noted as 3ph-Schiff base) as a corrosion inhibitor in comparison to benzotriazole (BTA) in a high-concentration 3 M HCl environment. Unlike studies conducted in lower concentrations (e.g. 0.1 and 1 M), this study aims to assess inhibitor performance under more aggressive conditions. Rigorous methods, including Tafel polarisation, electrochemical impedance spectroscopy (EIS), and mass loss measurements, revealed variations in inhibition efficiency (IE). Polarisation data indicated that 3ph-Schiff base at 0.3% (approximately 8.96 mM) achieved a maximum IE of 99.5%, surpassing BTA at the same concentration (approximately 25.2 mM), which recorded an IE of 96.9%. Meanwhile, EIS analysis yielded slightly lower IE values, with 3ph-Schiff base reaching 90.21% and BTA 67.39%, reflecting the complementary nature of these methods. The corrosion inhibition mechanism of 3ph-Schiff base is attributed to strong adsorption on the metal surface, where amino (NH2) and nitro (NO2) groups promote stable complex formation with metal ions, enhancing electron donation and forming a protective layer that blocks corrosive agents. Scanning electron microscopy and elemental mapping confirm uniform nitrogen and carbon surface coverage, integral to the protective layer. This layer acts as both a physical barrier and an electrochemical passivator, effectively reducing anodic and cathodic reactions. The combined effects of adsorption, physical blocking and passivation underscore the 3ph-Schiff base's superior performance as a corrosion inhibitor in acidic environments.
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2019
·
IF 4.175
Yuwei Ye,Yangjun Zou,Zilong Jiang,Qiumin Yang,Liyong Chen,Shengda Guo,Hao Chen
N doped carbon dots (N-CDs) were prepared by hydrothermal method in methacrylic acid and n -butylamine precursors. The inhibition behavior of N-CDs on Q235 steel in hydrochloric acid environment was discussed via weight loss test, surface characterizations and electrochemistry measurements. Results showed that the as-prepared N-CDs could effectively protect Q235 steel and the inhibition efficiency reached up to 94.96% at 200 mg/L of N-CDs. In the meantime, the impedance modulus was greatly enhanced and the corrosion current density was reduced by one order of magnitude after the addition of N-CDs. Moreover, it could adhere to the steel surface by diffusion and agglomeration effect, resulting in the formation of adsorption film on steel surface. The adsorption mechanism of N-CDs almost complied with the Langmuir adsorption model, containing chemical and physical adsorptions.
研究领域:
材料科学
·
腐蚀与防护
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Surface Topography-Metrology and Properties
·
2017
·Vol. 5
·期 4
·044001
·
IF 0
Xiangyu Li,Yuwei Ye,Tong Liu,Wenru Zheng,Feng Yang,Haichao Zhao,Liping Wang
Novel quaternary ammonium cation containing tetraaniline (QATA) was successfully synthesized by condensation of amine-capped tetraaniline with 6-bromohexanoic acid, followed by quaternarization with triethylamine. The corrosion inhibition performance of QATA with their adsorption mechanisms for Q235 steel was studied in 1 M HCl solution by a series of methods such as weight loss measurements, potentiodynamic polarization, electrochemical impedance spectroscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and atomic force microscopy (AFM). The inhibition efficiency (IE%) increased with increasing concentrations of QATA, reaching a value up to 97.47% at a concentration of 150 mg l−1. Potentiodynamic polarization curves showed that the QATA affected both cathodic and anodic protection and was a mixed type inhibitor in 1 M HCl corrosive medium. Adsorption isotherm studies confirmed that the absorption of QATA on the Q235 steel surface in 1 M HCl solution obeyed Langmuir adsorption isotherm, and the adsorption process of corrosion inhibition on Q235 steel surface involved both the physical and chemical adsorption. The EDS analysis determined the adsorption of QATA molecules on the steel surface, the surface morphologies before and after immersion in 1 M HCl medium were also investigated by SEM and AFM.
研究领域:
材料科学
·
腐蚀与防护
·
电化学
✓ 已验证
产品关联
DOI
危险品化学品经营许可证（带存储）