RSC Advances
·
2016
·Vol. 6
·期 27
·22250-22268
·
IF 3.289
Z. Zhang,N. C. Tian,X. D. Huang,W. Shang,L. Wu
The synergistic corrosion inhibition effect of indigo carmine and three kinds of cationic organic compounds on 1045 carbon steel (CS) in 0.5 M HCl solution is reported. Electrochemical measurements showed that these three cationic organic compounds combined with indigo carmine reduce the speed of corrosion on 1045 CS and act as effective inhibitors. The combination of indigo carmine with BAB resulted in the best synergistic corrosion inhibition effect (S = 17.14), and the best inhibition efficiency (95.0%). SEM images and XPS data of the corroded steel surfaces suggested that the indigo disulphonate anion and organic cation could be simultaneously adsorbed on the CS surface to inhibit the corrosion of iron. The synergistic inhibition mechanism was investigated by dynamic simulations using quantum chemistry.
研究领域:
材料腐蚀与防护
·
物理化学
·
金属材料科学
·
表面科学
·
电化学
·
量子化学
✓ 已验证
DOI
高影响因子
Journal of Materiomics
·
2022
·Vol. 8
·期 5
·1001-1008
·
IF 8.589
Xiaoyang Wang,Chun Li,Qihan Zhou,Mingshen Li,Mushi Zheng,Junlei Qi,Xiaoqing Si,Jian Cao
One of the critical challenges for the protonic ceramic fuel cell stack is sealing electrolytes and interconnects. However, the traditional Ag CuO sealant will aggravate the oxidation along the interconnect surface and result in brittle compound layers at the BaZr 0.1 Ce 0.7 Y 0.1 Yb 0.1 O 3- δ (BZCYYb) electrolyte interface. The present work demonstrates that a silver particle interlayer with high dislocation density can be adopted to join BZCYYb electrolyte to the interconnect (AISI 441 stainless) in air instead of traditional Ag CuO sealant. Elevating temperatures result in a sufficient bonding at the Ag/BZCYYb interface, and a defect-free joint is obtained at 950 °C. Atomic bonding at Ag/BZCYYb interface is confirmed by TEM. Also, a dense and thin oxide layer (2–3 μm) is formed along the AISI 441 interface. Ag particles in the interlayer provide the main driving force for the sintering joining. The massive dislocations promote the recovery and recrystallization of the Ag interlayer, as well as the interdiffusion of BZCYYb/Ag. After aging in the wet oxidizing atmosphere at 600 °C for 300 h, joints remain intact and dense, indicating superior oxidation resistance and aging performance. Besides, the joint shear strength (25.3 MPa) is 59 % higher than that of the joint brazed by traditional Ag CuO.
研究领域:
材料科学
·
固态离子学
·
能源材料
·
电化学
·
连接技术
·
高温材料
✓ 已验证
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2022
·
IF 6.633
Xiaohan Jin,Jingbao Wang,Siyuan Zheng,Jianan Li,Xuemei Ma,Li Feng,Hailin Zhu,Zhiyong Hu
Three triazine-based surfactants with different hydrophobic chain lengths were synthesized and characterized, namely, 2-(n-Hexylamino)-4,6-bis (3-N, N-dimethylaminopropyl) amino-1,3,5-triazine, 2-(n-Octylamino)-4,6-bis (3-N, N-dimethylaminopropyl) amino-1,3,5-triazine and 2-(n-n-Dodecylamino)-4,6-bis (3-N, N-dimethylaminopropyl) amino-1,3,5-triazine, labelled C 6 , C 8 and C 12 respectively. The chemical structure was confirmed by FTIR and 1 H NMR. The surface activity was evaluated by surface tension. C 12 had a lower critical micelle concentration (CMC) value (0.5 mM) than C 6 and C 8 , which suggested that a lower concentration was required to reach interfacial adsorption saturation, representing better inhibition performance. The corrosion inhibition of surfactants for 45 # carbon steel in 1.0 M HCl was studied by static weight loss measurement, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization. Inhibition results showed that C 12 was better than C 6 and C 8 with the maximum inhibition efficiency of 96% at 0.1 mM. The surface analysis had given a clear view of the mechanism of surfactants in inhibiting the corrosion process. Moreover, the Freundlich adsorption isotherm was the best description for the adsorption process of surfactants on 45 # carbon steel in 1.0 M HCl.
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
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2018
·
IF 3.235
Guangxia Tang,Haojie Zhu,Haoxiang Yu,Xing Cheng,Runtian Zheng,Tingting Liu,Jundong Zhang,Miao Shui,Jie Shu
With the development of science and technology, lithium ion batteries have become a representative of modern high-performance batteries due to their excellent performance. In this work, BiNbO 4 with the nanowire morphology is fabricated by a simple electrospinning method on a stainless steel mesh cage collector. Here, we demonstrate that the BiNbO 4 nanowires display a reversible capacity of 165 mAh g −1 and remarkable cycling stability at a current density of 50 mA g −1 . When cycled at 700 mA g −1 , BiNbO 4 nanowires can maintain the capacity retention of 60% after 700 cycles, revealing better cycling properties than other Bi-based anode materials. In addition, in-situ X-ray diffraction analysis suggests that BiNbO 4 nanowires have good electrochemical reversibility. BiNbO 4 is transformed into Bi nanocrystallites and Li 3 NbO 4 during the first discharge process. With the continuation of the discharge, active Bi nanocrystallites react with lithium ions to form Li 3 Bi alloys. This is a reversible process that provides reversible capacity as the reaction proceeds.
研究领域:
材料科学
·
电化学
·
纳米技术
·
能源存储
✓ 已验证
DOI
高影响因子
Materials Research Express
·
2024
·
IF 1.8
Hao Liu,Qingsong Chen,Qingyu Li,Yongchun Li,Jijun Yang
This study investigated the corrosion behavior of 9Cr ferritic/martensitic (F/M) steel with varying silicon contents when exposed to static lead-bismuth eutectic at temperatures between 450 °C and 550 °C. Except for samples corroded at 450 °C for 500 h, which developed a bilayer consisting of magnetite layer and Fe-Cr spinel layer, the oxide scale at 450 °C and 500 °C consists of exterior magnetite layer, Fe-Cr spinel layer, and disorganized internal oxide zone. Most of samples that corroded at 550 °C underwent dissolution corrosion. With the addition of Si, 9Cr F/M steel demonstrated enhanced corrosion resistance to LBE at low temperatures and effectively delaying the onset of dissolution corrosion at 550 °C.
研究领域:
材料科学
·
腐蚀工程
·
核材料
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Feng Xiong,Hao Deng,Ruoyin Luo,Shaojie Gao,Chenming Fan,Xin Gao,Bing Li
In this study, a dense Ta-based layer with a thickness of 400 nm was fabricated on SS316N bipolar plates (Ta-SS316N) by using a disproportionation reaction of Ta in a K 2 TaF 7 -Ta(powders)-KCl-NaCl molten salt system at 900 °C for 6 h. According to XRD analysis , the Ta-based layer was mainly composed of metallic Ta as well as Ta 2 N 0.86 . In the simulated HT-PEMFC cathode environment, the corrosion current density of Ta-SS316N obtained from the potentiodynamicl polarization curves was 0.96 μA/cm 2 , which meets the 2025 U S. DOE standard. Compared to the SS316N substrate, Ta-SS316N showed two orders of magnitude higher corrosion resistance and nearly 1 V higher self-corrosion potential, with an interfacial contact resistance of 27.5 mΩ∙cm 2 , accounting for about one-quarter that of SS316N substrate. This provides a low-cost, easy-to-operate method to prepare Ta-based layer on stainless steel bipolar plates used for HT-PEMFC.
研究领域:
材料科学
·
电化学
·
能源材料
·
表面工程
·
燃料电池技术
✓ 已验证
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Meng Qingling,Hu Xianwei,Kang Hongguang,Lin Ming,Yu Jiangyu,Liu Aimin,Shi Zhongning,Wang Zhaowen
Aluminum coating was expected to be used for corrosion protection of 300M steel. Al coating was prepared using the galvanostatic electrodeposition from AlCl 3 /acetamide (1.3:1) system for the corrosion protection of 300M steel. This process was conducted at varying current density (2–8 mA·cm −2 ) and electrodeposition time (1 and 2 h). The chronopotentiometry revealed that the size of Al nucleus was proportional to the inverse of overpotential. Thus, the morphology of Al coating was characterized by scanning electron microscope and optical surface profiler. The results indicated a decrease in Al grain sizes and the roughness fluctuation with increasing current density. Moreover, the corrosion resistance of Al coatings was evaluated in a 3.5 wt% NaCl solution using the potentiodynamic polarization and electrochemical impedance spectroscopy test. It was illustrated that corrosion current density decreased by 57.8 % at 6 mA·cm −2 with the electrodeposition time increasing from 1 to 2 h, while the value decreased by 75.9 % with the current density raising from 5 to 6 mA·cm −2 for 2 h. Al coating electrodeposited at 6 mA cm −2 for 2 h represented the highest corrosion resistance with the charge transfer resistance of 5695 Ω·cm 2 , while the value of 300M steel was 914 Ω·cm 2 . Finally, X-ray diffraction pattern suggested that corroded coatings compositions included Al 2 O 3 , AlO(OH) and AlCl 3 ·6H 2 O. The study was considered to provide a promising method using AlCl 3 /acetamide to electrodeposit Al coatings for protecting 300M steel from corrosion.
研究领域:
材料科学
·
腐蚀工程
·
电化学
✓ 已验证
DOI
高影响因子
CORROSION SCIENCE
·
2021
·
IF 7.205
Yue Zhao,Xiao-Han Chen,Ji-Ming Hu
A novel and environmental-friendly pretreatment layer was prepared on a mild steel from an aqueous solution of polyvinyl alcohol (PVA)-grafted phytic acid (PA). This composite pretreatment layer provides greatly improved adhesion to the metal substrate, owing to the strong chelation and coordination interaction between PA and metals. Meanwhile, PVA modification produces highly porous structure in the hybrid layer. This is beneficial to the improvement of adhesion between metal substrates and subsequent polymer coatings. Further, the highly porous structure is good at loading -corrosion inhibitors, and the polymeric coatings painted on PVA-PA pretreatment layer pre-encapsulated with inhibitors exhibit satisfactory anticorrosion performance.
研究领域:
材料科学
·
腐蚀工程
·
表面化学
✓ 已验证
DOI
高影响因子
Materials
·
2024
·Vol. 17
·期 5
·1200
·
IF 3.1
Wei Tong,Weiqiang Wang,Xiayu Leng,Jianli Song
To enhance the comprehensive performance of solid oxide fuel cells (SOFCs) ferritic stainless steel (FSS) interconnectors, a novel approach involving composite electrodeposition and thermal conversion is proposed to prepare Ni-doped Co-Mn composite spinel protective coatings on FSS surfaces. The process involves the composite electrodeposition of a Ni-doped Co-Mn precursor coating, followed by thermal conversion to obtain the Co-Mn-Ni composite spinel coating. Crofer 22H was used as the substrate and orthogonal experiments were designed to investigate the influences of deposition solution pH, stirring rate, cathode current density, and the element content of Mn and Ni on the surface morphology and properties of the composite coatings, respectively. The characterization of the prepared coatings was conducted through macroscopic and microscopic morphology observations of the component surface, energy dispersive spectroscopy (EDS) analysis, and area specific resistance (ASR) testing, etc. Finally, the optimized composite electrodeposition parameters and the Mn-Ni content ratio in the solution were obtained. Experimental results indicated that the composite spinel coating prepared with the optimized process parameters exhibited excellent adhesion to the substrate, and the diffusion and migration of Cr element has been effectively inhibited. Compared with the substrate, the ASR of the coated components has also been decreased simultaneously, which provided an effective method for the surface modification of SOFC FSS interconnectors.
研究领域:
材料科学
·
电化学
·
能源材料
·
表面工程
✓ 已验证
DOI
PubMed
高影响因子
Journal of Water Process Engineering
·
2022
·
IF 7.34
Yuanyang Yan,Peizhang Zhou,Shuan Zhang,Xinyu Yin,Xinjuan Zeng,Pihui Pi,Yunjun Nong,Xiufang Wen
Herein, an ultralong polypyrrole nanowires-coated stainless steel mesh (PPy@SSM) was successfully prepared to cope with the on-demand separation of oil/water emulsions as well as dyes adsorption via electrodeposition . The as-prepared PPy@SSM could be switched from superhydrophilic to hydrophobic under electric field for at least 50 times. Benefiting from the high porosity and its selective wettability , the PPy@SSM exhibited excellent separation efficiency of up to 99.88 % and high filtration flux of up to 2984 L m −2 h −1 for both oil-in-water and water-in-oil emulsions, even for the high viscous crude oil-in-water emulsion. Thanks to the surface charge, abundant aromatic rings of PPy, and porous structure, PPy@SSM also achieved selective adsorption of cationic or anionic dyes with high efficiency (up to 99.28 %) under diverse pH conditions. Moreover, the PPy@SSM also displayed a strong chemical resistance and mechanical stability under harsh conditions such as extreme temperature, corrosive environments, and various friction tests. Combined with a simple and environmental-friendly fabrication process, the high-performance membrane PPy@SSM has promising applications in the separation of oil/water emulsions and the adsorption of dyes .
研究领域:
材料科学
·
环境工程
·
化学工程
·
纳米技术
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Qiao Zeng,Lei Kang,Jiang Fan,Longfei Song,Shan Wan,Bokai Liao,Xingpeng Guo
A superhydrophobic coating composed of epoxy on the bottom and siloxane-modified silica on the top was prepared by employing the scraping and spraying methods. The superhydrophobic coating possesses excellent mechanical properties, is superhydrophobic (water contact angle, WCA = 164.3°), and has low adhesion. The long-term corrosion resistance of the epoxy coating and the superhydrophobic coating in a 3.5 % NaCl solution and hydrogen sulfide environment was assessed using electrochemical impedance spectroscopy (EIS), polarization curve analysis, immersion testing, and X-ray diffraction (XRD). Test results indicate that the superhydrophobic coating has excellent anti-corrosion capability in an H 2 S environment for 50 days and in a 3.5 % NaCl solution for 60 days. This is of great significance for developing the potential applications of superhydrophobic coatings in H 2 S environments.
研究领域:
材料科学
·
腐蚀工程
·
表面化学
✓ 已验证
DOI
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2018
·
IF 3.485
Zhaocai Zhang,Hengjing Ba,Zhenyu Wu,Yu Zhu
The inhibition mechanism of maize gluten meal extract (MGME) for steel was systematically elucidated combining experimental analysis with theoretical calculation. It is revealed that the MGME and its main basic constituent are responsible for inhibition including Glu, Pro and Leu, their inhibition efficiency are 83.15% and 79.27%, respectively. The antagonistic effect between the main basic molecules of Glu, Pro and Leu in MGME and the barrier film formed on steel surface were verified by electrochemical measurement and XPS result, respectively. Besides the quantum chemical calculation and Monte Carlo simulation were used to clarify inhibition mechanism of co-adsorption.
研究领域:
材料科学
·
化学工程
·
土木工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）