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On the use of wood charcoal filler to improve the properties of natural fiber reinforced polymer composites

Materials Today: Proceedings 2021年 44卷 926-929页

作者： Subrata Chandra Das Sheikh Ashek-E-Khoda Md. Abu Sayeed Suruzzaman Debasree Paul Sajib Aninda Dhar Sotirios A. Grammatikos Advanced and Sustainable Engineering Materials Laboratory Group of Sustainable Composites Department of Manufacturing and Civil Engineering Norwegian University of Science and Technology Gjøvik 2815 Norway Department of Textile Engineering Khwaja Yunus Ali University Sirajgonj Bangladesh Bangabandhu Textile Engineering College Tangail Affiliated by University of Dhaka Bangladesh Department of Textile Engineering Mawlana Bhashani Science and Technology University Tangail 1902 Bangladesh Pilot Plant and Process Development Centre Bangladesh Council of Scientific and Industrial Research Dhaka 1205 Bangladesh

This study aims to analyze the incorporation of widely available, cheap and biobased waste material such as wood charcoal which is used as filler in natural fiber reinforced polymer composites. Jute woven fabric (1 × 1 plain weave) was used as a natural fiber reinforcement, unsaturated polyester resin was used as matrix material, and wood charcoal powder used as bio-filler to manufacture various composite material formulations of 25% fiber weight fraction. The wood charcoal filler loadings were 4, 8, 12, 16 and 20 wt% in the polymer matrix of the composites. The developed composite formulations were tested in terms of mechanical and physicochemical properties. Improved tensile properties were revealed with a 4 wt% filler modification, compared to the reference (unmodified) polymer composite. Nonetheless, further increase of filler (8–20 wt%), led to lower mechanical properties. Thermogravimetric analysis showed increased thermal stability of the 4 wt% charcoal filler modified composite compared to the reference one.

关键词： Natural fibers Natural fillers Biomass resources Wood charcoal fillers Natural fiber composites (NFCs) TGA

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development of a Functionally-Tested Hybrid Electric Train

Development of a Functionally-Tested Hybrid Electric Train

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International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment and Management (HNICEM)

作者： Pablo Q. Acuin Jonathan Q. Puerto Rodnel O. Tamayo Geoffrey L. Abulencia Rolando F. Ibuig Advanced Transport Group (ATG) Materials and Process Research Division (MPRD) Metals Industry Research and Development Center (MIRDC) Taguig City Philippines

ISBN: (数字)9781728130446

ISBN: (纸本)9781728130453

This paper presents the development of a local train set aiming to augment the number of fleets presently the Philippine National Railways (PNR) provides. While importation has been the normal practice to supplement trains in the country's railway lines, this outsourcing is becoming more and more impractical as localization provides compelling advantages of cheaper cost and easier troubleshooting and maintenance. The train is composed of five (5) coaches which is powered by either generator set and/or batteries setting up the hybrid system. The coach assembly was designed using Solidworks and underwent stress analysis to verify its compactness and credibility. The addition of load sharing and regenerative braking technology furthers energy efficiency. To establish interaction with minimal wirings among systems making up the train set, a control system utilizing Programmable Logic Controller (PLC) and Human-Machine Interface (HMI) with CC-Link Central System was installed. Performance testing and Reliability-Availability- Maintainability-Safety (RAMS) validation wrapped up the development securing the train set functionality and commercial viability.

关键词： Batteries Hybrid power systems Acceleration Rails Brakes Switches Contacts

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Design and development of a Semi-Permanent Coupler of a Five-Coach Train

Design and Development of a Semi-Permanent Coupler of a Five...

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International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment and Management (HNICEM)

作者： Glen D. Espeña Geoffrey L. Abulencia Rodnel O. Tamayo Jonathan Q. Puerto Pablo Q. Acuin Jayson P. Rogelio Advanced Transport Group (ATG) Materials and Process Research Division (MPRD) Metals Industry Research and Development Center (MIRDC) Taguig City Philippines

ISBN: (数字)9781728130446

ISBN: (纸本)9781728130453

This study presents a locally designed and developed semi-permanent coupler for the DOST-MIRDC's train consisting of five 12-meter-length coaches. Using the Computer-Aided Design (CAD) software, the capability of the coupler for tension and compressive loads were considered. The calculation for the compression load of 1000 kN was required to pull the train in case of emergency towing. The CAD-modelled coupler was then simulated and analyzed using Solidworks software. The simulation was focused only on the collapsible elements for the compression load and the flange, rods, and nuts for the tension load. Using a 2000-kN Test of Metallic Products at MIRDC, the proof load test and breaking load test of 500 kN and 925.61 kN were respectively attained. The result of the tension load testing shows that the designed and fabricated semipermanent coupler is capable of withstanding load of 100 kN with a significant tolerance.

关键词： Couplers Load modeling Solid modeling Testing Safety Computational modeling Analytical models

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1T/2H-MoS 2 @Zn-Ni MOF composite: A novel catalyst for efficient hydrogen production and antimicrobial activity

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Journal of Water process Engineering 2025年 75卷

作者： Asma Tab Chemseddin Belabed Abdelkadir Mahieddine Mohamed Mehdi Kaci Khaled Derkaoui Abdelmounaim Chetoui Muneera S.M. Al-Saleem Adel Khen Leila Adnane-Amara Mahmut Özacar Toufik Hadjersi Amjad E. Alsafrani Mohamed Trari Claire Richard Jehan Y. Al-Humaidi Mohammed M. Rahman Laboratory of Chromatography Faculty of Chemistry USTHB BP 32 16111 Algiers Algeria Laboratory of Materials Physics Faculty of Physics USTHB BP 32 16111 Algiers Algeria Laboratory of Electrochemistry-Corrosion Metallurgy and Inorganic Chemistry Faculty of Chemistry University of Sciences and Technology Houari Boumediene (USTHB) BP 32 16111 Algiers Algeria Laboratory of Reaction Engineering Faculty of Mechanical and Process Engineering (USTHB) BP 32 16111 Algiers Algeria Centre de Développement des Technologies Avancées Alger Baba Hassen Algeria Research Center in Semiconductors Technology for Energetics (CRTSE) 02 Ave du Docteur Frantz Fanon 7-Merveilles Algiers Algeria Department of Chemistry College of Science Princess Nourah Bint Abdulrahman University P.O. BOX 84428 Riyadh 11671 Saudi Arabia Sakarya University Biomaterials Energy Photocatalysis Enzyme Technology Nano and Advanced Materials Additive Manufacturing Environmental Applications and Sustainability research and Development group (Sakarya 54187) Turkey Department of Chemistry College of Science University of Jeddah Jeddah Saudi Arabia Laboratory of Storage and Valorization of Renewable Energies Faculty of Chemistry University of Sciences and Technology Houari Boumediene (USTHB) BP 32 16111 Algiers Algeria Université Clermont Auvergne CNRS SIGMA Clermont ICCF F-63000 Clermont-Ferrand France Center of Excellence for Advanced Materials Research (CEAMR) & Chemistry department Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia

To address the energy crisis and produce green hydrogen, researchers have developed highly efficient devices employing catalyst for water splitting. Herein, we explored the synthesis and photocatalytic efficiency of a novel 1 T/2H-MoS 2 @Zn-Ni MOF composite, which was hydrothermally prepared by integrating 1 T/2H-MoS 2 with Zn Ni MOF, and assessed its H 2 generation and antibacterial activity. Characterization techniques, such as X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray spectroscopy (EDX), FTIR, and Raman spectroscopy, confirmed the successful formation and structural integrity of the composite. The photocatalytic performance of the resulting 1 T/2H-MoS 2 @Zn-Ni MOF demonstrated an optimal H 2 generation of roughly 250.09 μmol at pH⁓ 6.8 and in the presence of S 2 O 3 2− , which was 1373-fold higher than that of 1 T/2H-MoS 2 after 30 min of exposure to light. The remarkable efficacy of the designed photocatalyst can be credited to its ability to use visible light and boost charge segregation among the constituents promoted by S-scheme heterojunctions. Also, the stability of the sample was evaluated throughout 4 straight uses. Furthermore, the synthesized materials demonstrated varying antibacterial activities, displaying growth inhibition zones against S. aureus but not against E. coli , indicating greater resistance in the latter. These findings suggest that the 1 T/2H-MoS 2 @Zn-Ni MOF composite possesses significant selective antibacterial behavior owing to the generation of reactive oxygen species (ROS) and inhibition of bacterial proliferation. In synopsis, owing to its simplified manufacturing process and remarkable effectiveness, the manufactured 1 T/2H-MoS 2 @Zn-Ni MOF composite demonstrated promising photocatalytic capacity for H 2 generation and preliminary, selective antibacterial activity. This suggests that the 1 T/2H-MoS 2 @Zn-Ni MOF is a multifunctional material suitable for a wide array of energy and environ

关键词： Antimicrobial activity Metal-organic frameworks Novel 1 T/2H-MoS2@Zn-Ni MOF Photocatalysis hydrogen production Photocatalyst

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Reduced graphene oxide and gel polymer based thin film supercapacitor

Reduced graphene oxide and gel polymer based thin film super...

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IEEE SENSORS

作者： Y. Jiang C. Yang Q. Zhang K. Yang S. Kosolwattana J. Joyner H. Gullapalli R. Vajtai Advanced MEMS Process Development Group Analog Devices Inc. Wilmington MA USA Department of Materials Science and NanoEngineering Rice University Houston TX USA

This work reports a thin-film supercapacitor featuring advanced electrode and electrolyte materials and the capability of integration on SiO 2 /Si substrate. Conventional supercapacitors see their limit including low effective surface area electrode, low voltage-tolerance electrolyte, and bulky size. This work addresses these issues by the following novelties: 1) spray-coated rGO electrode layer with the high surface area, 2) quasi-solid gel polymer electrolyte layer using ionic liquid with high electrochemical voltage window (> 3 V), and 3) thin film (100 μm thick electrode) profile. The experimental results show the prototype generated 6 times higher energy density than the activated carbon sample. Our work pushes forward to a chip-scale energy storage solution for upcoming internet of things (IoT) applications.

关键词： Electrodes Supercapacitors Liquids Polymers Prototypes Conductivity Graphene

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Green Biomaterials: fundamental principles

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Green Biomaterials 2023年第1期1卷

作者： Navid Rabiee Mehmet R. Dokmeci Ali Zarrabi Pooyan Makvandi Mohammad Reza Saeb Hassan Karimi-Maleh Shima Jafarzadeh Ceren Karaman Yusuke Yamauchi Majid Ebrahimi Warkiani Sidi A. Bencherif Geeta Mehta Miharu Eguchi Ajeet Kaushik Mohammad-Ali Shahbazi Ana Cláudia Paiva-Santos Jacek Ryl Eder C. Lima Michael R. Hamblin Rajender S. Varma YunSuk Huh A. T. Ezhil Vilian Piyush Kumar Gupta Sandeep Kumar Lakhera Kavindra Kumar Kesari Yu-Ting Liu Mohammadreza Tahriri Ganji Seeta Rama Raju Mohsen Adeli Ali Mohammadi Jianglin Wang Mohd Zahid Ansari Tejraj Aminabhavi Houman Savoji Gautam Sethi Tomasz Bączek Agata Kot-Wasik Marcela Elisabeth Penoff Abdorreza Mohammadi Nafchi Justyna Kucinska-Lipka Masoumeh Zargar Mohsen Asadnia Amir Reza Aref Moein Safarkhani Milad Ashrafizadeh Reddicherla Umapathi Amir Ghasemi Milica Radisic a Centre for Molecular Medicine and Innovative Therapeutics Murdoch University Perth WA Australiab School of Engineering Macquarie University Sydney New South Wales Australia c Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA90024 USA d Department of Biomedical Engineering Faculty of Engineering and Natural Sciences Istinye University Sariyer Istanbul Turkey e The Quzhou Affiliated Hospital of Wenzhou Medical University Quzhou People’s Hospital Zhejiang Quzhou Chinaf School of Engineering Institute for Bioengineering The University of Edinburgh Edinburgh United Kingdom g Department of Polymer Technology Faculty of Chemistry Gdańsk University of Technology Gdańsk Poland h School of Resources and Environment University of Electronic Science and Technology of China 611731 Xiyuan Ave Chengdu P. R. Chinai School of Engineering Lebanese American University Byblos Lebanon j School of Engineering Edith Cowan University Joondalup WA Australia k Department of Electricity and Energy Akdeniz University Antalya Turkey l Australian Institute for Bioengineering and Nanotechnology (AIBN) and School of Chemical Engineering The University of Queensland Brisbane QLD Australiam Department of Materials Process Engineering Graduate School of Engineering Nagoya University Nagoya Japan n School of Biomedical Engineering University of Technology Sydney Sydney NSW Australiao Faculty of Science Institute for Biomedical Materials and Devices (IBMD) University of Technology Sydney Sydney NSW Australia p Chemical Engineering Department Northeastern University Boston MA USAq Department of Bioengineering Northeastern University Boston MA USAr Harvard John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge MA USA s Department of Biomedical Engineering University of Michigan Ann Arbor MI USAt Department of Materials Science and Engineering University of Michigan Ann Arbor MI USAu Macromolecular Science and Engineering

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Thermal shock induced phases transformation and microstructural changes in a novel hydrogen transport membrane

Thermal shock induced phases transformation and microstructu...

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2015 MRS Spring Meeting

作者： Zhang, Lily Yongjun Bandopadhyay, Sukumar Balachandran, U. Balu Nag, Nagendra College of Engineering and Mines University of Alaska FairbanksAK99775 United States Energy Systems Division Argonne National Laboratory ChicagoIL60439 United States Group Manager Advanced Process Development Surmet Corporation BuffaloNY14207 United States

ISBN: (纸本)9781510826625

Bulk samples of a novel cermet (ceramic/metal composite) hydrogen transport membrane (HTM) were subjected to thermal cycling in the temperature range between 25-850°C to study phase transformations and microstructural changes under thermal shock. Scanning electron microscopy (SEM) and electron probe micro analyzer (EPMA) with energy dispersive spectroscopy (EDS) were used to characterize the microstructural and chemical changes in the membrane upon thermal cycling. SEM & EPMA analyses indicated that the temperature gradient during thermal cycling produced more micro-cracks inside the HTM disc, whereas, the chemical reaction between Pd and oxygen to form PdO disturbed the continuity of the metal palladium (Pd) - Yttria Stabilized Zirconia (YSZ) dual phases interconnection system from surface down. The agglomerates of un-crystallized YSZ grains found to be the inherent in the cracks of the as-received HTM. A combination of trans-granular and inter-granular crack propagation results around the YSZ grains and the new precipitates. Based on the electron fractography analyses by both SEM and EPMA, the micro voids coalescence develops ahead of the crack tips in the cross-section of the HTM after 500 thermal cycles. © 2015 Materials Research Society.

关键词： Yttria stabilized zirconia

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development of highly active coated monolith SCR catalyst with strong abrasion resistance for low-temperature application

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Frontiers of Environmental Science & Engineering 2015年第6期9卷 979-987页

作者： Lina GAN Shan LEI Jian YU Hongtao MA Yo YAMAMOTO Yoshizo SUZUKI Guangwen XU Zhanguo ZHANG State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China Materials Research Department Materials Research Laboratories Research and Development Group Meidensha Corporation 8-1 Osaki 2-Chome Shinagawa-ku Tokyo 141-8565 Japan National Institute of Advanced Industrial Science and Technology (AIST) Onogawa 16-1 Tsukuba 305-8569 Japan

Monolith SCR catalysts coated with V2Os- WO3/TiO2 were prepared by varying binder and coating thickness. Comparing with a monolith extruded with 100% V2O5-WO3/TiO2 powder, a coated monolith with a catalyst-coating layer of 260 μm in thickness exhibited the similar initial NOx reduction activity at 250℃. After 4 h abrasion （attrition） in an air stream containing 300 g. m^-3 fine sands （50-100μm） at a superficial gas velocity of 10m·s^-1, the catalyst still has the activity as a 100% molded monolith does in a 24-h activity test and it retains about 92% of its initial activity at 250℃. Estimation of the equivalent durable hours at a fly ash concentration of 1.0 g.m^-3 in flue gas and a gas velocity of 5 m.s^-1 demonstrated that this coated monolith catalyst is capable of resisting abrasion for 13 months without losing more than 8% of its initial activity. The result suggests the great potential of the coated monolith for application to de-NOx of flue gases with low fly ash concentrations from, such as glass and ceramics manufacturing processes.

关键词： coated monolith low-temperature denitration,abrasion resistance attrition

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Thermal Shock Induced Phases Transformation and Microstructural Changes in a Novel Hydrogen Transport Membrane

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MRS Online Proceedings Library 2015年第1期1810卷 1-8页

作者： Zhang, Lily Yongjun Bandopadhyay, Sukumar Balachandran, U. (Balu) Nag, Nagendra College of Engineering and Mines University of Alaska Fairbanks USA Energy Systems Division Argonne National Laboratory Chicago USA Group Manager Advanced Process Development Surmet Corporation Buffalo USA

关键词： ceramic phase transformation microstructure

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Corrigendum to "Priorities to inform research on marine plastic pollution in Southeast Asia" [Sci. Total Environ. volume 841 (2022) Article 156704]

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The Science of the total environment 2023年第PT 3期857卷 159595页

作者： Lucy C M Omeyer Emily M Duncan Kornrawee Aiemsomboon Nicola Beaumont Sujaree Bureekul Bin Cao Luis R Carrasco Suchana Chavanich James R Clark Muhammad R Cordova Fay Couceiro Simon M Cragg Neil Dickson Pierre Failler Gianluca Ferraro Stephen Fletcher Jenny Fong Alex T Ford Tony Gutierrez Fauziah Shahul Hamid Jan G Hiddink Pham T Hoa Sophie I Holland Lowenna Jones Nia H Jones Heather Koldewey Federico M Lauro Charlotte Lee Matt Lewis Danny Marks Sabine Matallana-Surget Claudia G Mayorga-Adame John McGeehan Lauren F Messer Laura Michie Michelle A Miller Zeeda F Mohamad Nur Hazimah Mohamed Nor Moritz Müller Simon P Neill Sarah E Nelms Deo Florence L Onda Joyce J L Ong Agamuthu Pariatamby Sui C Phang Richard Quilliam Peter E Robins Maria Salta Aida Sartimbul Shiori Shakuto Martin W Skov Evelyn B Taboada Peter A Todd Tai Chong Toh Suresh Valiyaveettil Voranop Viyakarn Passorn Wonnapinij Louisa E Wood Clara L X Yong Brendan J Godley Centre for Ecology and Conservation University of Exeter Penryn Campus Penryn Cornwall TR10 9EZ United Kingdom. Electronic address: L.C.M.Omeyer@exeter.ac.uk. Centre for Ecology and Conservation University of Exeter Penryn Campus Penryn Cornwall TR10 9EZ United Kingdom OKEANOS Universidade dos Açores Departamento de Oceanografia e Pescas 9901-862 Horta Portugal. Electronic address: emily.m.duncan@uac.pt. Department of Marine Science Faculty of Science Chulalongkorn University Bangkok 10330 Thailand. Plymouth Marine Laboratory Prospect Place The Hoe Plymouth Devon PL1 3DH United Kingdom. Singapore Centre for Environmental Life Sciences Engineering Nanyang Technological University 637551 Singapore School of Civil and Environmental Engineering Nanyang Technological University 50 Nanyang Avenue 639798 Singapore. Department of Biological Sciences National University of Singapore 14 Science Drive 4 117543 Singapore. Department of Marine Science Faculty of Science Chulalongkorn University Bangkok 10330 Thailand Aquatic Resources Research Institute Chulalongkorn University Bangkok 10330 Thailand. Research Centre for Oceanography Indonesian Institute of Sciences (LIPI) Jalan Pasir Putih 1 Ancol Timur Jakarta 14430 Indonesia Research Centre for Oceanography National Research and Innovation Agency (BRIN) Jalan Pasir Putih 1 Ancol Timur Jakarta 14430 Indonesia. School of Civil Engineering and Surveying Faculty of Technology University of Portsmouth Portsmouth Hampshire PO1 3AH United Kingdom. Institute of Marine Sciences University of Portsmouth Portsmouth Hampshire PO4 9LY United Kingdom Centre for Enzyme Innovation School of Biological Sciences University of Portsmouth Portsmouth Hampshire PO1 2DY United Kingdom. School of Ocean Sciences Bangor University Menai Bridge Anglesey LL59 5AB United Kingdom. Centre for Blue Governance Department of Economics and Finance University of Portsmouth Portsmouth Hampshire PO1 3DE United Kingdom. School of the E

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