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22nd Australasian Fluid Mechanics Conference, AFMC 2020

作者： Chanson, H. Brown, R. Kani, M. School of Civil Engineering University of Queensland BrisbaneQLD4072 Australia School of Mechanical Material and Process Engineering Queensland University of Technology BrisbaneQLD4000 Australia QUT Conferences Queensland University of Technology BrisbaneQLD4000 Australia

ISBN: (纸本)9781742723419

The Proceedings of the 22nd Australasian Fluid Mechanics Conference AFMC2020 focuses on many aspects of fluid mechanics and their applications, especially in terms of diversity, challenges, ecology, and public health relevant to the 21st century. The event organisation aimed to facilitate the sharing of information among biomedical, chemical, civil, environmental, mechanical, mining, nuclear and water engineers, mathematicians and scientists coming from different regions, universities, industries and backgrounds, including developed and developing countries, and students, young and senior professionals. After reviewing the challenges associated with fluid mechanics in terms of diversity, challenges, ecology, public health, socio-economics into the 21st century, the proceedings peer-review process is detailed. The proceedings contents are listed, as well as the AFMC2020 organisation. At the end, the reviewers are acknowledged. © 2020 22nd Australasian Fluid Mechanics Conference, AFMC 2020. All rights reserved.

关键词： Public health

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Thermostable α-Diimine Nickel Complexes with Substituents on Acenaphthequinone-backbone for Ethylene Polymerization

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Chinese Journal of Polymer Science 2020年第11期38卷 1214-1220,I0007页

作者： Rui-Fang Zhang Yan-Hui Hou Xu-Ling Wei Ding-Ding Zhao Mi-Mi Cui Fei-Fan Zhai Xiang-Liu Li Bin-Yuan Liu Min Yang Hebei Key Laboratory of Functional Polymers Tianjin Key Laboratory of Chemical Process SafetyInstitute of Polymer Science and EngineeringHebei University of TechnologyTianjin 300130China State Key Laboratory of Separation Membranes and Membrane Processes School of Material Science and EngineeringTiangong UniversityTianjin 300160China Lanzhou Petrochemical Research Center Petrochemical Research Institute of CNPCLanzhou 730060China

In order to promote the thermostability of a-diimine nickel complex by ligand backbone structure,a series of α-diimine nickel complexes with substituents on acenaphthequinone backbone were synthesized and used as catalysts for ethylene *** the hydroxyethyl phenoxyl group was introduced to the acenaphthequinone-backbone,the thermal stability and activity of the catalyst could be significantly *** catalytic activity of complex C2[5-(4-(2-hydroxyethyl)phenoxyl)-N,N-bis(2,6-diisopropyl)acenaphthylene-1,2-diimine]nickel(Ⅱ)dibromide with isopropyl substituents on N-aryl reached 8.2×10^6g/(molNi·h)at 70℃and 2 *** activity of[5-(4-(2-hydroxyethyl)phenoxyl)-N,N-bis(2,6-dibenzhydryl-4-menthylphenyl)acenaphthylene-1,2-diimine]nickel(Ⅱ)dibromide(C3)still maintained at 6.7×10^5 g/(molNi·h)at 120℃.Compared with C3 containing bulky dibenzhydryl substituents,the activity of C2 was sensitive to the change of the polymerization ***,the polyethylenes obtained from complex C3 had lower branching ***,the molecular weight could reach 971 kg/mol,which is almost 5 times as much as that of the polyethylene obtained from complex C2.

关键词： α-Diimine nickel Ethylene polymerization Thermostability Ligand backbone structure

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Coastal aquatic pollutants degradation using ZnCo2O4 nanorods

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Environmental Research 2024年 258卷 119441页

作者： Gnanasekaran, Lalitha Ramalingam, Gomathi Suresh, R. Nangan, Senthilkumar Zielińska-Jurek, Anna Chen, Wei-Hsin Soto-Moscoso, Matias Instituto de Alta Investigación Universidad de Tarapacá Arica1000000 Chile Department of Civil Engineering KPR Institute of Engineering and Technology Coimbatore641407 India Department of Chemistry Karpagam Academy of Higher Education Tamil Nadu Coimbatore641021 India Centre for Material Chemistry Karpagam Academy of Higher Education Tamil Nadu Coimbatore641021 India Metallurgy and Materials Science Research Institute Chulalongkorn University Thailand Faculty of Chemistry Department of Process Engineering and Chemical Technology Gdansk University of Technology Narutowicza 11/12 PL Gdansk80233 Poland Department of Aeronautics and Astronautics National Cheng Kung University Taiwan 701 Taiwan Research Center for Smart Sustainable Circular Economy Tunghai University Taichung407 Taiwan Department of Mechanical Engineering National Chin-Yi University of Technology Taichung411 Taiwan Universidad Autónoma de Chile Chile

Water pollution has caused problems in coastal areas, rivers, lakes, and other important water sources around the world as a result of inappropriate waste management. Meanwhile, these pollutants are harmful to humans and aquatic life. Textile dye effluent methyl orange (MO) was used in this work for dye degradation studies employing nanocomposites. As a result, the importance of synthesizing pure ZnO and Co3O4 nanoparticles with composites of ZnCo2O4 (zinc cobaltite) nanorods in three various proportions (90:10, 75:25, and 50:50) is emphasized in this study. Many advanced approaches were used to assess the various features of these materials, including size and shape. Fourier transform infrared (FT-IR) spectroscopy was used to determine the vibrational modes of the materials. The absorption measurements were then carried out using UV–vis spectroscopic techniques, and the photocatalytic breakdown of MO was done under visible light irradiation. The findings revealed that pure materials were inadequate for visible light activity, resulting in decreased degradation efficiencies. Spinel cobaltite structures have potential degradation efficiency under visible light, while ZnCo2O4 (50:50) catalyst has superior degradation efficiency of 59.8% over MO. The crystallite size, morphology, functional group, absorption wavelength, and band gap all play important roles in enhancing the material's photocatalytic activity under visible light. Meanwhile, ZnCo2O4 spinel structures are crucial for increasing charge carriers and reducing electron-hole recombination. As a result, zinc cobaltite minerals are widely used in industrial dye degradation applications. © 2024 Elsevier Inc.

关键词： II-VI semiconductors

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Numerical study of spray cooling with flash evaporation 5

Numerical study of spray cooling with flash evaporation

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5th International Symposium on Hydrogen Energy and Energy Technologies, HEET 2022

作者： Chen, Mengrong Xie, Yue Gong, Mengjun Zhang, Xinyu Ren, Yong Department of Mechanical Materials and Manufacturing Engineering University of Nottingham Ningbo China 199 Taikang East Road Ningbo315100 China Research Center for Fluids and Thermal Engineering University of Nottingham Ningbo China 199 Taikang East Road Ningbo315100 China Commercial Aircraft Corporation of China Ltd No. 919 Shangfei Road Pudong New Area Shanghai200135 China Ningbo Key Laboratory on Energy Material and Technology University of Nottingham Ningbo China 199 Taikang East Road Ningbo315100 China Key Laboratory for Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang University of Nottingham Ningbo China 199 Taikang East Road Ningbo315100 China

This work aims to apply Computational Fluid Dynamic (CFD) method to establish a flash evaporation spray cooling (FESC) model to simulate the heating process and find the optimum cooling performance. The heat transfer process during FESC is studied through numerical simulation using commercial code ANSYS FLUENT. The species transport model and the discrete phase model are applied to simulate the multiphase flow and heat transfer process. The turbulence effect is included. The effects of flow rate, nozzle pressure, nozzle angle, and the nozzle orifice size on spray cooling are investigated through analyzing the final surface temperature distributions. This work revealed the mechanism of the heat transfer process in FESC by means of particle tracks and velocity magnitude distribution. The simulated results for the effect of flow rate were compared with other researchers' previous published experimental results. The comparison shows same trend, which verified the model and the simulation result. The optimum cooling performance is found by analyzing various working conditions. The results show that high flow rate, high nozzle pressure, small nozzle angle and small nozzle orifice can improve the FESC characteristics. The detailed mechanisms of these effects under various working conditions are also discussed. Under giving working conditions, the optimum cooling performance is obtained for the condition where mass flow rate of working fluid is 2L/min, the nozzle pressure is 100MPa, the nozzle angle is 15 degrees and the orifice size of the nozzle is 1mm. © Published under licence by IOP Publishing Ltd.

关键词： Computational fluid dynamics

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Volatolomics in healthcare and its advanced detection technology

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Nano Research 2022年第9期15卷 8185-8213页

作者： Wenwen Hu Weiwei Wu Yingying Jian Hossam Haick Guangjian Zhang Yun Qian Miaomiao Yuan Mingshui Yao School of Aerospace Science and Technology Xidian UniversityXi’an 730107China Interdisciplinary Research Center of Smart Sensors School of Advanced Materials and NanotechnologyXidian UniversityXi’an 730107China Faculty of Chemical Engineering and Russell Berrie Nanotechnology Institute Technion-Israel Institute of TechnologyHaifa 3200002Israel Department of Thoracic Surgery The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061China Stomatology Hospital School of StomatologyZhejiang University School of MedicineClinical Research Center for Oral Diseases of Zhejiang Province Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceCancer Center of Zhejiang UniversityHangzhou 310006China The Eighth Affiliated Hospital Sun Yat-sen UniversityShenzhen 518033China State Key Laboratory of Multi-phase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 310006China Institute for Integrated Cell-Material Sciences Kyoto University Institute for Advanced StudyKyoto UniversityKyoto 606-8501Japan

Various diseases increasingly challenge the health status and life quality of human *** emitted from patients has been considered as a potential family of markers,volatolomics,for diagnosis/*** are two fundamental issues of volatolomics in *** one hand,the solid relationship between the volatolome and specific diseases needs to be clarified and *** the other hand,effective methods should be explored for the precise detection of *** comprehensive review articles had been published in this ***,a timely and systematical summary and elaboration is still *** this review article,the research methodology of volatolomics in healthcare is critically considered and given out,at ***,the sets of volatolome according to specific diseases through different body sources and the analytical instruments for their identifications are systematically ***,the advanced electronic nose and photonic nose technologies for volatile organic compounds(VOCs)detection are well *** existed obstacles and future perspectives are deeply thought and *** article could give a good guidance to researchers in this interdisciplinary field,not only understanding the cutting-edge detection technologies for doctors(medicinal background),but also making reference to clarify the choice of aimed VOCs during the sensor research for chemists,materials scientists,electronics engineers,etc.

关键词： volatolomics electronic nose disease diagnosis sensor artificial olfaction volatile organic compounds

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Mass-Transfer-Enhanced Hydrophobic Bi Microsheets for Highly Efficient Electroreduction of Co2 to Pure Formate in a Wide Potential Window

SSRN

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SSRN 2022年

作者： Zhang, Yong Zhang, Rui Chen, FeiFei Zhang, FeiFei Liu, Yingda Hao, Xiaoya Jin, Haokun Zhang, Xinghua Lu, Zunming Dong, Hong Lu, Feng Wang, Weihua Liu, Hui Liu, Hui Cheng, Yahui Department of Electronic Science and Engineering Tianjin Key Laboratory of Process Control and Green Technology for Pharmaceutical Industry Nankai University Tianjin300350 China School of Material Science and Engineering Hebei University of Technology Tianjin300130 China Research Group of Quantum-Dot Materials & Devices Institute of New-Energy Materials Tianjin University Tianjin300350 China

The industrial application of electrochemical CO2 reduction reaction is challenged by the limited mass transfer and the mixing of products with traditional electrolytes. Here, we proposed an in-situ electroreduction strategy to construct hydrophobic Bi microsheets with (012) plane orientation and abundant grain boundaries to solve these problems and maintain high intrinsic activity. The large distance between microsheets and the stable micro-sized hydrophobic structure can trap more air and form smaller solid-liquid interface to stably improve CO2 mass transfer. The obtained Bi microsheets exhibited high activity and selectivity in a wide potential window. In an H-type cell, the selectivity of formate exceeds 90% over a potential range of -0.8 V to -1.3 V vs. RHE. The pure formate solution was produced using a CO2 reduction cell with solid-state electrolyte to simplify product separation, and 0.13 M pure formate solution was continuously and stably produced for 110 h at 160 mAcm-2 . © 2022, The Authors. All rights reserved.

关键词： Carbon dioxide

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A New Facile Strategy for Addressing the Localized Corrosion Issue at Damaged Coating Via a Wind-Driven Triboelectric Nanogenerator

SSRN

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SSRN 2024年

作者： Liu, Chaoyang Cui, Siwen Li, Ruili Ai, Wenying Guan, Xiaoyan Li, Lanxiang Wang, JunPeng Wang, Daoai School of Material and Chemical Engineering Center for Advanced Materials Research Zhongyuan University of Technology Zhengzhou450007 China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou730000 China Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou341000 China National Engineering Research Center of Green Recycling for Strategic Metal Resources Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

Metal substrate at the damaged coating, exposed directly to the corrosive medium, is susceptible to the localized corrosion, due to the formation of occluded corrosion cells. Herein, a new facile strategy for addressing the localized corrosion issue at damaged coating using a triboelectric nanogenerator (TENG) was proposed. The wind-driven TENG with a simple double-layer structure was designed. The output performance of the TENG can be controlled by adjusting structural parameters and the wind speeds, with the maximum short circuit current, output voltage and corresponding power reaching approximately 102.5 mA, 814 V and 7.6 mW, respectively, at a wind speed of 7.5 m/s. The electrons generated by the TENG can be transferred to the metal substrate at the damaged coating, inducing the cathodic polarization of the metal and providing effective cathodic protection. The reduction reaction, with the consumption of O2 and the formation of OH-, occurs at the metal substrate at the damaged coating. A protective local environment is created by the combination of increased pH and removal of Cl- under the electric field of the TENG. To evaluate the corrosion behavior, immersion experiments and electrochemical measurements were conducted in 3.5 wt% NaCl when the Q235 steels covered the damaged coating were coupled with and without the wind-driven TENG at different wind speeds. Meanwhile, the influence of TENG's output performance on the cathodic protection effect for the metal substrate at the damaged coating is discussed. This study expands the application of the TENG in the field of corrosion resistance. © 2024, The Authors. All rights reserved.

关键词： Corrosion resistance

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Ti-MOF Derived N-Doped TiO2 Nanostructure as Visible-light-driven Photocatalyst

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Chemical Research in Chinese Universities 2020年第3期36卷 447-452页

作者： HE Yilei ZHANG Xing WEI Yanze CHEN Xiaoyu WANG Zumin YU Ranbo Department of Physical Chemistry School of Metallurgical and Ecological EngineeringUniversiw of Science and Technology BeijingBeijing 100083P.R.China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190P.R.China Key Laboratory of Advanced Material Processing&Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002P.R.China

Nanostructured N-doped TiO2 photocatalyst has been prepared via a new approach from Ti-based MOF[NH2-MIL-125(Ti)]*** success of N doping enhances light absorption and narrows the ***,the as-prepared nanostructure is constructed with tiny nanoparticles and resembles a pie-like morphology inherited from the MOF,which accelerates electron ***,as a photocatalyst for the degradation of methylene blue(MB)under visible light irradiation,the N-doped TiO2(N-TiO2)nanostructure shows higher photocatalytic activity with a reaction rate constant of 0.018min^-1 than that of the TiO2-P25 and TiO2 under the visible light.

关键词： TiO2 Mctal-organic framcwork Photo-degradaton N doped Visible-light photocatalysis

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Experimental Investigation of Circulating Fluidized Bed Combustion of Dry Powders of Coal Slime

SSRN

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SSRN 2022年

作者： Liang, Bin Bai, Haolong Tan, Bo Fu, Liangliang Bai, Dingrong Shandong Energy Group Co. Ltd. Shandong Jinan250014 China Key Laboratory on Resources Chemicals and Material of Ministry of Education Shenyang University of Chemical Technology Shenyang110142 China Institute of Process Engineering Chinese Academy of Sciences Beijing100084 China Beijing Key Laboratory of Green Reaction Engineering and Technology Department of Chemical Engineering Tsinghua University Beijing100084 China

Effective combustion of coal slime in circulating fluidized bed (CFB) boilers is essential for the sustainable development of clean coal technology. To overcome issues related to burning wet coal slime in CFBs, we propose to dry coal slime in a low-temperature drying system and burn the dried fine powders in a CFB with a highly efficient *** assess the feasibility, a series of experiments are conducted in a 4MWth pilot-scale CFB combustion test facility. The results demonstrate that the dried slime particles, which have a particle size distribution similar to that of circulating ash particles, can be burned stably, efficiently, and cleanly. The combustion of fuels with size distributions similar to that of circulating ash particles increases solids circulation rates, betters solids concentration distribution, enhances heat transfer combustion, and improves operation and SO2 and NOx controls. Therefore, the study presents a potential opportunity to advance CFB combustion technology. © 2022, The Authors. All rights reserved.

关键词： Particle size

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Nanostructured BiVO4 Derived from Bi-MOF for Enhanced Visible-light Photodegradation

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Chemical Research in Chinese Universities 2020年第1期36卷 120-126页

作者： CHEN Jianfei CHEN Xiaoyu ZHANG Xing YUAN Yao BI Ruyi YOU Feifei WANG Zumin YU Ranbo Department of Physical Chemistry School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijing 100083P.R.China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190P.R.China Key Laboratory of Advanced Material Processing&Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002P.R.China

BiVO4,a promising visible-light responding photocatalyst,has aroused extensive research interest because of inexpensiveness and excellent chemical ***,its main drawback is the poor photoinduced charge-transfer *** nanostructures is an effective way to tackle this ***,we put forward a new method to prepare nanostructured BiVO4 from Bi-based metal-organic frameworks[Bi-MOF(CAU-17)]*** as-prepared material has a rod-like morphology inherited from the Bi-MOF sacrificial template and consists of small nanoparticle as building *** with its counterparts prepared by conventional methods,MOF-derived nanostructured BiVO4 shows better light absorption ability,narrower bandgap,and improved electrical conductivity as well as reduced ***,BiVO4 nanostructure demonstrates high photocatalytic activity under visible light towards the degradation of methylene *** blue can be degraded up to 90%within 30 min with a reaction rate constant of 0.058 ***,the cycling stability of the catalyst is excellent to withstand unchanged degradation efficiency for at least 5 cycles.

关键词： BiVO4 Nanostructure Metal-organic framework Ternary metal oxide Photocatalysis

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