Surface Innovations最新文献_第9页

Fabrication of superhydrophobic PDMS/TiO2 composite coatings with corrosion resistance 耐腐蚀超疏水PDMS/TiO2复合涂层的制备

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-04-20 DOI: 10.1680/jsuin.22.00013

Zhangyang Zhou, B. Ma, Xin Zhang, C. Deng, Shujie Yang, Chuanbo Hu

{"title":"Fabrication of superhydrophobic PDMS/TiO2 composite coatings with corrosion resistance","authors":"Zhangyang Zhou, B. Ma, Xin Zhang, C. Deng, Shujie Yang, Chuanbo Hu","doi":"10.1680/jsuin.22.00013","DOIUrl":"https://doi.org/10.1680/jsuin.22.00013","url":null,"abstract":"In this study, a combination of hydrothermal and sol-gel methods was used to prepare superhydrophobic polydimethylsiloxane (PDMS)/TiO2 composite coating with good self-cleaning properties and corrosion resistance. The structural, surface roughness and wettability behavior of the PDMS/TiO2 superhydrophobic coatings were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), and contact angles measurements. Results showed that surfaces of composite coatings possessed rough hierarchical micro/nanostructures, especially, the surface water contact angle is as high as 160° and the sliding angle is less than 2.1° when the ratio of PDMS/TiO2 was 1:5. In addition, through a series of high-temperature exposure, acid-alkali resistance, self-cleaning, and electrochemical corrosion tests, it was also found that the superhydrophobic surface with a PDMS/TiO2 ratio of 1:5 had excellent properties, and showed certain practicability in terms of anticorrosion, antipollution and durability. Therefore, it can be concluded that this kind of corrosion resistant superhydrophobic PDMS/TiO2 composite coating with simple operation, high performance and multi-scale use on metal substrates has good application prospects in harsh environments.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47994653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Anticorrosion and surface evaluation of some electrodeposited Ni-Co-TiO2 nanocomposite coatings in 3.5 wt. % NaCl solutions 镍-钴-二氧化钛纳米复合镀层的防腐性能及表面评价。% NaCl溶液

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-04-20 DOI: 10.1680/jsuin.22.00017

H. Nady, M. Negem, E. E. El-Katori

{"title":"Anticorrosion and surface evaluation of some electrodeposited Ni-Co-TiO2 nanocomposite coatings in 3.5 wt. % NaCl solutions","authors":"H. Nady, M. Negem, E. E. El-Katori","doi":"10.1680/jsuin.22.00017","DOIUrl":"https://doi.org/10.1680/jsuin.22.00017","url":null,"abstract":"Herein, we are interested to provide the synthetic methodologies, chemical properties, and the corrosion performance of some Ni-xCo-yTiO2 nanocomposite electroplated on Cu using the gluconate-cysteine bath, pointing at the classification of these materials corresponding to their stability in that simulated marine solution and recommend using these materials in such aggressive media. Electrochemical and spectroscopic measurements were employed in 3.5 wt. % NaCl electrolytes at 25°C. The electrochemical properties of the applicable nanocomposite material will be studied to enhance manufacturing technology and forecast the stability of structures made from it. The produced nanocomposite coatings have been demonstrated to have high corrosion resistance in the investigated electrolyte, which is commonly utilized in hydrogen evolution reaction applications and other novel materials corrosion investigations. By characterizing the corrosion performance of the examined Ni-xCo-yTiO2 nanocomposite coatings in 3.5 wt.% NaCl solution, the Ni-48Co-3.8TiO2 is regarded as the most stable electrode. The results exposed that the inclusion of Co inside Ni-xCo-yTiO2 significantly lessened the corrosion rate of the investigated composites. The surface examination revealed the presence of several materials constituents in the passive layer. DFT and Monte Carlo simulation approaches have been used to investigate and analyze the relationship between molecular structure and inhibitory effect.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45099154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aggregation of morpholinium surfactants with amino alcohols as additives: a close look 以氨基醇为添加剂的形啉表面活性剂的聚集:近距离观察

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-04-11 DOI: 10.1680/jsuin.22.00006

R. Pavlov, F. Valeeva, G. Gaynanova, D. Kuznetsov, L. Zakharova

引用次数: 2

Ni nanoparticles modified Cu nanowires for enhanced electrocatalytic nitrate removal Ni纳米粒子修饰Cu纳米线增强电催化去除硝酸盐的研究

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-04-05 DOI: 10.1680/jsuin.22.00040

Yiyang Feng, Xiaoqing Liu, Zhehan Yi, Haotian Tan, Liqun Wang, Feng Hou, Ji Liang

{"title":"Ni nanoparticles modified Cu nanowires for enhanced electrocatalytic nitrate removal","authors":"Yiyang Feng, Xiaoqing Liu, Zhehan Yi, Haotian Tan, Liqun Wang, Feng Hou, Ji Liang","doi":"10.1680/jsuin.22.00040","DOIUrl":"https://doi.org/10.1680/jsuin.22.00040","url":null,"abstract":"Cu-based materials have been extensively studied for nitrate removal as an inexpensive and abundant electrocatalyst for water purification via the nitrate reduction reaction (NO3RR). But it typically suffers from nitrite accumulation due to the high selectivity towards nitrite formation. To address this issue, we herein report a strategy of modifying Cu nanowires with Ni nanoparticles to improve the NO3RR performance. The Ni nanoparticles both facilitate electron transfer from Ni to Cu and enhance the conversion of nitrite, thereby improving the overall removal of nitrate with a minimal yield of nitrite. Through a facile liquid phase deposition process, the loading amount of Ni nanoparticles can be easily tailored by simply changing the concentration of precursors, and the best Cu/Ni molar ratio for nitrate removal performance is 20. Under this ratio, the material simultaneously delivers a high nitrate removal rate of 92.2% and a low nitrite selectivity of only 2.2% at –0.9 V vs. reversible hydrogen electrode, accompanied with superior stability for a continuous NO3RR. This study thus offers an efficient, stable, and low-cost Cu-Ni bimetallic catalyst for NO3RR.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49160871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Characterization and linear/nonlinear optical properties of polymer nanocomposite films for optoelectronics applications 用于光电子应用的聚合物纳米复合薄膜的表征及其线性/非线性光学性能

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-04-01 DOI: 10.1680/jsuin.22.00026

B. M. Alotaibi, H. Al-Yousef, N. Alsaif, A. Atta

{"title":"Characterization and linear/nonlinear optical properties of polymer nanocomposite films for optoelectronics applications","authors":"B. M. Alotaibi, H. Al-Yousef, N. Alsaif, A. Atta","doi":"10.1680/jsuin.22.00026","DOIUrl":"https://doi.org/10.1680/jsuin.22.00026","url":null,"abstract":"Polymer nanocomposite films combining of polyaniline (PANI) and lead sulfide (PbSNPs) were effectively synthesized using a casting solution approach for used in optical energy applications. Transmission microscope (TEM), X-ray diffraction (XRD), and infra-red spectroscopy (FT-IR) methods demonstrate that PbSNPs is successfully introduced into the PANI matrix. Scanning electron microscope (SEM) images reveal that the PbS is homogenously loaded and distributed in PANI chain. Using UV-Vis optical absorbance, the optical parameters of PANI/PbSNPs were evaluated, including absorption edge (Ed), band gap (Eg), carbon cluster number (N) and Urbach energies (Eu). PbSNPs has been investigated for their impact on PANI polymer linear optical (LO) as well as nonlinear optical (NLO) characteristics including refractive index, nonlinear susceptibility, and dielectric parameter’s. When comparing the PANI/PbSNPs film to the pure PANI film, the band gap of the PANI/PbSNPs samples was found to be significantly reduced. However, the addition of PbSNPs increased the predicted amount of optical conductivity and carbon cluster number. The addition of PbSNPs to the PANI polymer improved its optical characteristics, resulting in a synthetic composite that can be used in energy applications as well as optoelectronics devices.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43621955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Carbon nanofiber aerogel/silicon oxycarbide composites for enhanced electromagnetic interference shielding 增强电磁干扰屏蔽的纳米碳纤维气凝胶/碳化硅复合材料

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-04-01 DOI: 10.1680/jsuin.22.00001

Wenxia Zhu, Zhengkai Tian, Xiao-xia Yan, Dong Su

{"title":"Carbon nanofiber aerogel/silicon oxycarbide composites for enhanced electromagnetic interference shielding","authors":"Wenxia Zhu, Zhengkai Tian, Xiao-xia Yan, Dong Su","doi":"10.1680/jsuin.22.00001","DOIUrl":"https://doi.org/10.1680/jsuin.22.00001","url":null,"abstract":"Lightweight electromagnetic interference (EMI) shielding materials under harsh environments are in urgent need to tackle the increasing electromagnetic pollution and hazards. Herein, carbon nanofiber aerogel (CNFA) modified silicon oxycarbide (CNFA/SiOC) composites were prepared following a precursor infiltration pyrolysis procedure by using three-dimensional CNFA as a skeleton. Their structures and mass densities (0.28-1.35 g cm−3) were tunable by adjusting the content of polysiloxane precursor in impregnating solution. The lightweight CNFA/SiOC composite featured with continuous conductive network and highly porous structure in SiOC matrix, resulting in high specific shielding effectiveness (up to 68.9 dB·cm3 g−1 with SETotal of 19.3 dB) due to enhanced conductance loss and multi reflection/scattering. When increasing the density, the CNFA/SiOC composite can deliver EMI shielding effectiveness as high as 27.5 dB due to the generation of defective carbon and carbon dangling bonds as well as abundant interfaces between CNFs and SiOC which induce polarization loss. Moreover, the CNFA/SiOC composite exhibits good oxidation resistance with SETotal retention of above 98% after heat treatment at 600°C for 2 h in air, which arises from the effective protection of CNFs by SiOC.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46429545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Preparation and characterization of air sprayed silk fibroin/silica-based thermal-insulation coatings on catheters for cerebral hypothermia therapy 空气喷涂丝素/二氧化硅基脑低温治疗导管隔热涂层的制备与表征

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-03-28 DOI: 10.1680/jsuin.22.00022

Yuan Gao, Miaowen Jiang, L. Bao, Zhichen Yin, Jicheng Zhang, Guangzhen Pan, Shiqiang Zheng, Yufeng Zheng, Chuanjie Wu, Ming Li, Xu Ji

{"title":"Preparation and characterization of air sprayed silk fibroin/silica-based thermal-insulation coatings on catheters for cerebral hypothermia therapy","authors":"Yuan Gao, Miaowen Jiang, L. Bao, Zhichen Yin, Jicheng Zhang, Guangzhen Pan, Shiqiang Zheng, Yufeng Zheng, Chuanjie Wu, Ming Li, Xu Ji","doi":"10.1680/jsuin.22.00022","DOIUrl":"https://doi.org/10.1680/jsuin.22.00022","url":null,"abstract":"Clinical practice of therapeutic hypothermia for neuroprotection in acute cerebral ischemia has been hindered by warming effect on the cold infusate along pathway, which results from the poor thermal resistance of traditional interventional catheter. In this study, thermal insulation coatings with different spray parameters and coating suspension compositions were prepared via air-spraying on Nylon substrate for biomedical application. The surface morphology and microstructure of coatings were investigated by scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier Transform infrared spectroscopy (FTIR), respectively. Silk fibroin (SF) and hollow silica based nanospheres (HSBNS) were successfully sprayed on Nylon substrate. The thermal conductivity of coating measured by light flash apparatus is down to 0.00105 W/(m·K). The tape test indicates that coatings containing SF, HSBNS and glyceryl have good adhesion which is a promising method to enhance the thermal insulation performance of traditional catheter for cerebral hypothermia therapy.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44956847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Thin layer wicking experiments using magnetically treated water 磁处理水的薄层芯吸实验

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-03-28 DOI: 10.1680/jsuin.22.00999

A. Szcześ, E. Chibowski, E. Rzeźnik

引用次数: 1

Triboinformatics: Machine Learning algorithms and Data Topology methods for surface roughness, friction, and wear 摩擦学:表面粗糙度、摩擦和磨损的机器学习算法和数据拓扑方法

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-03-10 DOI: 10.1680/jsuin.22.00027

Md Syam Hasan, Michael Nosonovsky

引用次数: 5

Functionally oriented high-temperature composite materials for aerospace use 航空航天用功能取向高温复合材料

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-03-10 DOI: 10.1680/jsuin.22.00016

P. Rusinov, Z. Blednova, R. Plomodyalo, A. P. Yurkova, Anastasia A Rusinova, Maxim D Ignatiev, Maxim Semadeni

{"title":"Functionally oriented high-temperature composite materials for aerospace use","authors":"P. Rusinov, Z. Blednova, R. Plomodyalo, A. P. Yurkova, Anastasia A Rusinova, Maxim D Ignatiev, Maxim Semadeni","doi":"10.1680/jsuin.22.00016","DOIUrl":"https://doi.org/10.1680/jsuin.22.00016","url":null,"abstract":"The authors developed technology for obtaining surface composite materials. This technology includes high-energy mechanical treatment, HVOF in a protective atmosphere, subsequent thermomechanical and thermal treatment of ZrCuNiCoTi, cBNNi3AlSiCCoY layers in a protective atmosphere. The processing allowed to increase the adhesive strength of the surface composites, reduce their porosity and improve their functional and operational properties. Staged methods of heat treatment and plastic deformation of surface layers have been developed. These methods stabilize material structure while reducing residual stresses. On the basis of complex X-ray diffraction and electron microscopic studies, the structural parameters of surface composites were determined. It was shown that the ZrCuNiCoTi alloy is in the austenitic-martensitic state and has a nanocrystalline structure with a grain size of 80–120 nm. Meanwhile, the cBNNi3AlSiCCoY alloy consists of many intermetallic phases and inclusions and has a nanosized structure with a grain size of 100–200 nm. A microhardness study of the surface layers in ZrCuNiCoTi – cBNNi3AlSiCCoY composite showed that thermomechanical treatment increases microhardness. The experimental data were statistically processed. As a result, empirical mathematical dependences of the stress amplitude on cyclic durability were compiled. Mechanical tests included tests of NiCoTiZrHf – cBNCoMo, ZrCuNiCoTi – cBNNi3AlSiCCoY, TiNiZrHfCoCu – cBNCoNiAlY composites for multi-cycle fatigue during bending with rotation.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41983406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0