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Preparation of Superhydrophobic Coating with Self-Healing and Antifouling Properties on the Surface of Low Manganese Steel by Electrodeposition Technology

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SSRN 2022年

作者： Zhang, Lunliang Liu, Xiang Yan, Jingmin Li, ZhengChen Huang, Siyu Weng, Yao Li, Jiang Yuan, Chenzong Han, Peiwei Ye, Shufeng Zhang, Xiaomeng School of Rare earths University of Science and Technology of China Hefei230026 China Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou341119 China State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing100190 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing100190 China

As a rare earth slow-release agent, yttrium (Y) element is often used in anti-corrosion coatings at high temperature, but its application in anti-corrosion coatings at room temperature is rarely studied. Therefore, in this study, a stearic acid-yttrium (SA-Y) superhydrophobic coating was prepared in one step on the surface of low manganese steel by electrodeposition technique. Different electroplating voltages were applied to the electrolyte composed of Y(NO3)3·6H2O and stearic acid (SA), and the effect of the voltage on the surface morphology and wettability of the coating was studied. The results show that the optimum contact angle of SA-Y coating is about 162.1±1.2°. The corrosion current density of the prepared SA-Y coating (5.41×10-12A/cm2) is 6 orders of magnitude lower than that of the low-manganese steel sample (5.63×10-6 A/cm2). It is confirmed that the coating has good corrosion resistance, and the coating also has good antifouling properties. And studies have shown that the damaged coating will form a dense protective layer, and the coating has self-healing ability to prevent further corrosion of the metal. Therefore, the coating prepared in this study have good application prospects in marine anti-corrosion. © 2022, The Authors. All rights reserved.

关键词： Morphology

Corrigendum to “Modified polyether gylcols supported ionic liquids for CO 2 adsorption and chemical fixation” [Mol. Catal. 492 (2020) 111008-111016]

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Molecular Catalysis 2020年 493卷

作者： Ying Liu Yan Song Jianhua Zhou Xiangping Zhang CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex System Beijing Key Laboratory of Ionic Liquids Clean Process Institute of Process Engineering Chinese Academy of Science Beijing 100190 China School of Chemistry and Pharmaceutical Engineering Qilu University of Technology Jinan 250353 China

Preparation of Superhydrophobic Coating with Self-Healing and Antifouling Properties on the Surface of Low Manganese Steel by Electrodeposition Technology

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SSRN 2022年

作者： Zhang, Lunliang Liu, Xiang Yan, Jingmin Li, Zhengchen Huang, Siyu Weng, Yao Li, Jiang Yuan, Chenzong Han, Peiwei Ye, Shufeng Zhang, Xiaomeng School of Rare earths University of Science and Technology of China Hefei230026 China Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou341119 China State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing100190 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing100190 China

As a rare earth slow-release agent, yttrium (Y) element was often used in anticorrosion coatings at high temperature, but its application in anti-corrosion coatings at room temperature was rarely studied. Therefore, in this study, a stearic acid-yttrium (SA-Y) superhydrophobic coating was prepared in one step on the surface of low manganese steel by electrodeposition technique. Different electroplating voltages were applied to the electrolyte composed of Y(NO3)3·6H2O and stearic acid (SA), and the effect of the voltage on the surface morphology and wettability of the coating was studied. The results show that the optimum contact angle of SA-Y coating is about 162.1±1.2°. The corrosion current density of the prepared SA-Y coating (5.41×10-12A/cm2) is 6 orders of magnitude lower than that of the low-manganese steel sample (5.63×10-6 A/cm2). It is confirmed that the coating has good corrosion resistance, and the coating also has good antifouling properties. And studies have shown that the damaged coating will form a dense protective layer, and the coating has self-healing ability to prevent further corrosion of the metal. Therefore, the coating prepared in this study have good application prospects in marine anti-corrosion. © 2022, The Authors. All rights reserved.

关键词： Morphology

Experimental study on pressure and temperature distribution characteristics of subcritical and supercritical water in vertical flow channel

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International Journal of Fluid Engineering

International Journal of Fluid engineering 2024年第4期1卷 56-64页

作者： Hui Jin Huibo Wang Yi Li Petr A.Nikrityuk State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong UniversityShaanxi 710049China Mechanical Engineering Department Eindhoven University of TechnologyEindhovenNetherlands Chemical and Materials Engineering Department University of AlbertaEdmontonAlberta T6G 2R3Canada

To enhance knowledge about efficiency improvement and reactor optimization in supercritical water gasification,an experimental system was designed to study the pressure and temperature distribution of subcritical and supercritical water in a channel,representing a simplified continuous *** pressure drop and temperature distribution along and perpendicular to the forced flow are studied by the measure points inserted inside the test *** results show that the pressure drop in the test section is linearly negatively correlated with the average enthalpy of the inlet and outlet,eventually reaching negative values(-0.177 MPa)at high average enthalpy(2300 kJ kg^(-1)).Temperature and specific enthalpy along the flow direction match theoretical estimates,except near the pseudocritical *** subcritical cases,horizontal temperature differences are positively correlated with enthalpy differences and mass flow rates but remain nearly constant in supercritical ***,with fluid temperature rising from the pseudocritical point,the horizontal temperature difference first increases,then decreases,and reaching a peak of 4.29 K at a fluid temperature of 664 *** of the obtained data reveals that the negative correlation and values of the pressure drop are caused by fluid volume ***,fluid volume expansion,near-wall natural convection,and turbulent forced flow fluctuations contribute to horizontal temperature non-uniformity.

关键词： flow distribution channel

Single-atom cobalt-incorporating carbon nitride for photocatalytic solar hydrogen conversion: An X-ray spectromicroscopy study

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Journal of Electron Spectroscopy and Related Phenomena 2023年 264卷

作者： Huang, Yu-Cheng Chen, Jie Lu, Ying-Rui Arul, K. Thanigai Ohigashi, Takuji Chen, Jeng-Lung Chen, Chi-Liang Shen, Shaohua Chou, Wu-Ching Pong, Way-Faung Dong, Chung-Li National Synchrotron Radiation Research Center Hsinchu30010 Taiwan School of Chemical Engineering and Technology Xi'an Jiaotong University Xi'an710049 China Research Center for X-ray Science & Department of Physics Tamkang University New Taipei City25137 Taiwan Photon Factory Institute of Materials Structure Science High Energy Accelerator Research Organization Tsukabu Japan UVSOR Synchrotron Facility Institute for Molecular Science Okazaki Japan International Research Center for Renewable Energy State Key laboratory of Multiphase Flow in Power Engineering Xi`an Jiaotong University Shaanxi Xi`an710049 China Department of Electrophysics National Yang Ming Chiao Tung University Hsinchu30010 Taiwan

The use of carbon nitride-based materials and light to drive catalytic water splitting has enormous potential for the production of hydrogen. Revealing the processes of molecular conjugation, nucleation, and crystallization in crystalline carbon nitride is expected to enhance the photocatalytic activity through the creation of isotype heterojunctions and active sites. In this work, the addition of cobalt salts in ionothermal synthesis was found to promote the phase transition of heptazine-based crystalline carbon nitride (CCN) to triazine-based poly (triazine imide) (PTI), resulting in the formation of a single-atom cobalt-doped coordinated isotype CCN/PTI heterojunction. The new hybrid orbital modulates the atomic/electronic structure and the band gap of the CCN/PTI heterojunction, and synergistically increases the absorption of visible light, accelerating the separation and transfer of photoexcited electrons and holes. Synchrotron-based X-ray spectroscopy and microscopy are used to identify the origin of the improved performance of the single-atom cobalt-doped CCN/PTI heterojunction in the photocatalytic hydrogen evolution reaction. This work demonstrates that synchrotron X-ray spectroscopy is a promising tool for designing materials aimed at enhancing photocatalytic activity in solar energy conversion applications. © 2023 Elsevier B.V.

关键词： Carbon nitride

Lithium–Sulfur Batteries: Flexible and High‐Loading Lithium–Sulfur Batteries Enabled by Integrated Three‐In‐One Fibrous Membranes (Adv. Energy Mater. 38/2019)

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Advanced Energy Materials 2019年第38期9卷

作者： Jianan Wang Guorui Yang Jie Chen Yunpeng Liu Yuankun Wang Cheng‐Yen Lao Kai Xi Duowen Yang Christopher J. Harris Wei Yan Shujiang Ding Ramachandran Vasant Kumar Department of Applied Chemistry School of Science MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter State Key Laboratory for Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an 710049 China Department of Environmental Science and Engineering State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 China Department of Materials Science and Metallurgy University of Cambridge Cambridge CB3 0FS UK

Deciphering the Promoting Mechanism of Sno2 to Cu2o in the Rochow-Müller Reaction

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SSRN 2023年

作者： Zhang, Heng Jin, Baofang Zhu, Yongxia Ban, Liqing Wang, Kangjun Xu, Jing Gao, Jiajian Zhong, Ziyi Xu, Guangwen Su, Fabing Key Laboratory on Resources Chemicals and Materials of Ministry of Education Shenyang University of Chemical Technology Shenyang110142 China State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Beijing GRIPM Advanced Materials Research Institute Co. Ltd. Beijing101407 China Institute of Industrial Chemistry and Energy Technology Shenyang University of Chemical Technology Shenyang110142 China 1 Pesek Road Jurong Island Singapore627833 Singapore 241 Daxue Road Shantou515063 China Haifa32000 Israel

Sn-based compounds are typical promoters for Cu-based catalysts used in the Rochow-Müller reaction, which manufactures most organosilicon monomers in the industry. However, the role of these promoters and the detailed structural evolution of Cu-based catalysts during the reaction have not been clearly clarified in the literature. Herein, a series of SnO2-modified commercial Cu2O catalysts (xSnO2/Cu2O, x = 0.01, 0.03, and 0.1) with different SnO2 contents (0.01, 0.03, and 0.1wt%) were prepared and tested for Rochow-Müller reaction. Among these catalysts, 0.03SnO2/Cu2O exhibits the highest dimethyldichlorosilane selectivity of 87.8 % and Si conversion of 35.8 % at 325 oC. Detailed characterization and analysis reveal that introducing SnO2 promotes the transformation of Cu2O to CuCl and Cu and further to the active Cu3Si phase, thus leading to the high catalytic performance of the SnO2-modified Cu2O catalysts. This work provides new insights into the SnO2 promotion to the Cu-based catalysts and catalytic mechanism in the Rochow-Müller reaction. © 2023, The Authors. All rights reserved.

关键词： Chlorine compounds

Printability Enhancement and Tensile Property Improvement Via Developing in Situ Synthesized Carbon Nanotubes-Al Composite Powder

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SSRN 2022年

作者： Cui, Jingyi Li, Shaofu Misra, R.D.K. Geng, Kang Kondoh, Katsuyoshi Li, Guanfeng Yang, Yafeng State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China University of Chinese Academy of Sciences Beijing100049 China Key Laboratory of Science and Technology on Particle Materials Chinese Academy of Sciences China Department of Metallurgical Materials and Biomedical Engineering University of Texas at El Paso 500 W. University Avenue El PasoTX79968 United States AVIC Manufacturing Technology Institute Beijing100024 China Joining and Welding Research Institution Osaka University Osaka Japan Northeastern University Faculty Sydney Smart Technology College Hebei066004 China

A strategy of powder surface functional modification involving in situ synthesizing carbon nanotubes (CNTs) on Al powder is described to address the poor forming ability and inferior mechanical properties of 3D printed Al parts. Coating CNTs on Al powder significantly reduced the laser reflectivity and enhanced the printability. CNTs contributed to reinforcement after printing and enhanced the tensile properties. The printing behavior of powder, the distribution of reinforcement, and tensile properties of printed samples were optimized by tuning the CNT-content. From the viewpoint of forming quality and strengthening capability of reinforcement, the CNT-content was optimized at 0.96 wt.%. An increase of 61% in the yield strength was achieved in the printed sample with ductility similar to the printed monolithic Al sample. © 2022, The Authors. All rights reserved.

关键词： Carbon nanotubes

Correction to: Noble metal-based high-entropy alloys as advanced electrocatalysts for energy conversion

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Rare Metals 2021年第2期44卷 1410-1410页

作者： Qin, Yu-Chen Wang, Feng-Qi Wang, Xin-Ming Wang, Ming-Wei Zhang, Wen-Long An, Wan-Kai Wang, Xiao-Peng Ren, Yun-Lai Zheng, Xin Lv, Dong-Can Ahmad, Ayyaz College of Sciences Henan Agricultural University Zhengzhou China State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering East China University of Science and Technology Shanghai China Department of Chemical Engineering MNS University of Engineering and Technology Multan Pakistan

A correction to this paper has been published: https://***/10.1007/s12598-021-01727-y

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