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Recent Advancement of Nickel Based-Cathode for The Microbial Electrolysis Cell (MEC) and Its Future Prospect

Journal of engineering Science and technology Review 2022年第1期15卷 191-198页

作者： Suharto, Totok Eka Satar, Ibdal Daud, Wan Ramli Wan Somalu, Mahendra Rao Hong, Kim Byung Department of Chemical Engineering Faculty of Industrial Technology Universitas Ahmad Dahlan Yogyakarta Indonesia Department of Food Technologug Faculty od Industrial Technology Universitas Ahmad Dahlan Yogyakarta Indonesia Department of Chemical and Process Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia Selangor Bangi43600 Malaysia Fuel Cell Institute Universiti Kebangsaan Malaysia Selangor Bangi43600 Malaysia Korean Institute of Science and Technology 136-791 Korea Republic of State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology Harbin150090 China

The cost of a cathode and/or catalyst in a microbial electrolysis cell (MEC) is one of the main factors that must be considered before its application in a reactor. More than 45 % of total MEC cost is contributed by cathode material. Currently, platinum (Pt) has become the primary option as cathode or catalyst in MEC because it has superior catalytic properties for hydrogen evolution reaction. The high-price of Pt and its prone to being poisoned by the buffer in the electrolyte, calls for an alternative cathode or catalyst study. Some non-precious metals such as nickel (Ni), titanium (Ti), stainless steel (SS) and composites were explored to replace Pt. Among these materials, Ni is one of the best options because it has excellent catalytic properties, inexpensive, commercially available, less over-potential, and less toxic to living organisms. In most reports, Ni was applied in MEC to produce hydrogen from wastewater which showed comparable performance to Pt. This paper reviews the current status and future prospect of Ni performance as the cathode or catalyst in MEC for hydrogen production, based on the hydrogen cathodic recovery and production rate. © 2022. School of Science, IHU. All rights reserved.

关键词： Hydrogen production

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The Removal of Heavy Metals Effluent from Wastewater by Nanoparticle Based on Polyoxometalates 2nd

The Removal of Heavy Metals Effluent from Wastewater by Nano...

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2nd International Conference on Green Energy Conversion System, ICGECS 2023

作者： Zabat, Nacéra Nedjah, Nawel Laboratory of Organic Synthesis-Modeling and Optimization of Chemical Processes Department of Process Engineering Faculty of Engineering Badji Mokhtar-Annaba University P.O. Box 12 Annaba23000 Algeria Physical Metallurgy and Materials Properties Laboratory National Higher School of Technology and Engineering ENSTI Badji Mokhtar University Annaba Algeria

ISBN: (纸本)9789819761470

In this study, a lacunar Polyoxometalate (POM) of Dawson type (α2P2W17O61)10− was prepared and tested in the complexation of (Ni2+) in aqueous solution. The stability of the formed complex (α2P2W17O61Ni)8− according to the reactional medium pH and the time were studied. The stoichiometry and the constant of stability of this formed complex were also studied. From where it was noted that this compound has rather high constant of stability, it was calculated to be β = 1.57 × 106. Thus this compound has interesting proprieties for fixing heavy metals such us nickel existing in industrial waste water. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Heavy metals

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Thermo-kinetic assessment of direct cellulose conversion to ethyl levulinate using Brønsted-Lewis acidic ionic liquid

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chemical engineering Research and Design 2025年 218卷 886-895页

作者： Krishnasamy, Kirrthana Asmadi, Mohd Zainol, Muzakkir Mohammad Zakaria, Zaki Yamani Abdullah, Sureena Faculty of Chemical and Energy Engineering Universiti Teknologi Malaysia Johor Johor Bahru81310 Malaysia School of Chemical Engineering College of Engineering Universiti Teknologi MARA Shah Alam Selangor40450 Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Al-Sultan Abudllah Lebuh Persiaran Tun Khalil Yaakob Pahang Kuantan26300 Malaysia

Ethyl levulinate (EL) is a biomass-derived fuel additive that enhances fuel flow properties and promotes cleaner emissions, contributing to climate change mitigation. This study presents a novel investigation into the thermo-kinetics of direct cellulose conversion to EL using Brønsted-Lewis acidic ionic liquid (BLAIL), a catalytic system that has received limited attention in this context. Reactions were conducted at 170–190 °C for 1–6 h, with BLAIL demonstrating superior catalytic performance. BLAIL yielded 30.79 mol% EL, the highest EL yield reported to date for direct cellulose conversion using BLAIL, significantly outperforming Brønsted acidic ionic liquid (BAIL), which yielded 15.60 mol% under conditions (190 °C, 6 h, 0.6 g cellulose, 2 g ionic liquid, 25 mL ethanol). Kinetic analysis revealed that both BAIL and BLAIL systems follow a pseudo-homogeneous first-order model (R² > 0.95). BLAIL reduced the activation energy to 114.94 kJ/mol, compared to BAIL (146.1 kJ/mol), indicating enhanced catalytic efficiency. Thermodynamic parameters for the BLAIL catalysed reaction (∆H‡= 111.17 kJ/mol, ∆S‡= −92.44 J/mol·K, ∆G‡= 153.06 kJ/mol) suggest the process is endothermic, more ordered, and endergonic. These findings provide new insights into the role of dual acidity in BLAIL for improving EL yield and for upscaling sustainable EL production from lignocellulosic biomass. © 2025 Institution of chemical Engineers

关键词： Biomass Dual acidity Fuel additive Ionic liquid

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Prediction of mechanical and physical properties of spent bleaching earth based fired bricks: an experimental study using RSM and ANN

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Asian Journal of Civil engineering 2024年第8期25卷 5811-5833页

作者： Bouzidi, M.A. Bouzidi, N. Quesada, D. Eliche Faculty of Technology Laboratory of Construction Engineering and Architecture (LGCA) University of Bejaia Bejaia 06000 Algeria Faculty of Technology Materials Technology and Process Engineering Laboratory (LTMGP) University of Bejaia Bejaia 06000 Algeria Center for Advanced Studies in Earth Sciences Energy and Environment (CEACTEMA) University of Jaén Campus Las Lagunillas S/N Jaén 23071 Spain Department of Chemical Environmental and Materials Engineering Higher Polytechnic School of Jaén University of Jaen Campus Las Lagunillas S/N Jaén 23071 Spain

In this study, Artificial Neural Networks (ANN) and Response Surface Methodology (RSM) are used to develop models to predict compressive strength, thermal conductivity, porosity and water absorption of eco-friendly fired clay bricks containing different amounts of water, percentages of spent bleaching earth (SBE) and, firing temperatures. Water content was varied between 5 and 8 wt.%, SBE was varied in the range of 0 to 50 wt.% and, firing temperature ranges from 800 to 950 °C. The fired bricks properties were strongly influenced by the SBE content and fairing temperature as confirmed by the SEM images. The percentages of water strongly influenced the compressive strength but had less influence on the porosity and water absorption and no influence on the thermal conductivity. The statistical values for both RSM and ANN models: (coefficient of determination (R²), adjusted coefficient of determination (R²_adj), mean square error (MSE), root mean square error (RMSE) and relative percent deviation (RDP)), were used to compare the two models. The results reveal high correlation coefficients, adjusted coefficients and low root mean square errors. The models were found robust and accurate in their predictions. Based on these results, the RSM and ANN models can be applied as an effective tool to predict compressive strength, thermal conductivity, porosity, and water absorption of fired bricks. Nevertheless, the artificial neural network model showed better accuracy. Graphical Abstract: (Figure presented.) © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024.

关键词： Artificial neural network Clay bricks Environment Mechanical properties Response surface methodology Thermal conductivity

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Toward multichannel core-shell catalysts: Utilizing templating of silica sols with SBA-15 to achieve core-shell architecture in multichannel catalysts featuring a hierarchical porous structure

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Ceramics International 2025年第16期51卷 22480-22485页

作者： Pudlo, Wojciech Golkowska, Anna Prusik, Krystian Lach, Radoslaw Department of Chemical Engineering and Process Design Silesian University of Technology Strzody 7 Gliwice Poland Department of Drug Forms Technology Faculty of Pharmacy Wroclaw Medical University Borowska 211 Wroclaw Poland Institute of Materials Engineering University of Silesia in Katowice 75 Pulku Piechoty 1A Chorzow Poland Silesian Center for Education and Interdisciplinary Research University of Silesia in Katowice 75 Pulku Piechoty 1A Chorzow Poland Department of Ceramics and Refractories AGH University of Science and Technology in Krakow Al. Mickiewicza 30 Kraków Poland

We synthesized multichannel core-shell catalysts based on SBA-15 embedded in silica with a hierarchical porous structure. The addition of SBA-15 to silica sol changed the porous structure both at the macro- and mesoscale, contributing to the generation of additional phase separation, and thus forming a core-shell structure containing SBA-15 domains surrounded by a mesoporous silica film. These novel hybrid materials, similar to their precursors, i.e., hierarchical porous materials, can be potentially applied as carriers for catalysts, drugs, or enzymes, or as flow-through (bio)chemical microreactors. © 2025

关键词： Shells (structures)

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Bioactive Components of Commiphora Gileadensis Plant for Various Medicinal Applications: A Bibliometric Analysis

Bioactive Components of Commiphora Gileadensis Plant for Var...

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2022 International Conference on Data Analytics for Business and Industry, ICDABI 2022

作者： Moakizh, Aiman A. Bin Nour, Abdurahman H. Alara, Oluwaseun R. Baarimah, Abdullah O. Universiti Malaysia Pahang Faculty of Chemical and Process Engineering Technology Gambang26300 Malaysia Universiti Teknologi Petronas Seri Iskandar Department of Civil and Environmental Engineering Perak Malaysia

ISBN: (纸本)9781665490580

Herbal medicine is becoming increasingly popular all over the world. As an alternative to currently used antibiotics, there is a need to find naturally occurring substances from plants that contain bioactive components. Commiphora gileadensis is a significant medicinal plant that has been used historically and, in the future, where this tree species is important economically and medicinally. The medicinal potential of C. gileadensis stems from the presence of secondary phytoconstituents, which perform a variety of functions including antioxidant, antimicrobial, cytotoxic, anticancer, and antiviral. Several studies have been conducted to integrate the ecological and biological properties of C. gileadensis. However, no scientometric analysis has been attempted to investigate the holistic understanding of the plant. The study's aim is to perform a bibliometric analysis of the plant literature on C. gileadensis and present a summary of research development from 2010 to September 2022. 40 documents were pulled from the Scopus database. To display the literature by country, scientific journal, and keyword, the VOSviewer tool was employed. The findings revealed that 'Antibacterial,' 'Antioxidant,' 'Anti-microbial,' 'Anticancer,' and 'Sustainable Medicinal Plant' have recently risen to prominence as mainstream topics associated with this field, piqued the interest of academics, and may represent future research opportunities. Furthermore, based on the most keywords frequently utilized, seven important research domains linked with C. Gileadensis have been identified, including 'Balm of Gilead', 'Balm of Judea', 'Apharsemon', 'Opobalsamum', 'Mecca Balsam', 'Besham (Becham)' and 'Myrrha'. As a result, explanations for research findings and recommendations for future studies on the integration of C. Gileadensis usage and its valuable bioactive components for multi-Medicinal applications have been provided. © 2022 IEEE.

关键词： Antioxidants

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Change in Calculated Carbon Aromaticity Index (CCAI) Depending on Cetane Indexes of Biodiesel Fuels of Different Origins

Change in Calculated Carbon Aromaticity Index (CCAI) Dependi...

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2022 IEEE Global Energy Conference, GEC 2022

作者： Yasar, Fevzi Uguz, Gediz Kayunoglu, Cemil Vocational School of Technical Sciences Batman University Department of Chemistry and Chemical Process Technology Batman72100 Turkey Ondokuz Mayis University Faculty of Engineering Department of Chemical Engineering Samsun55200 Turkey Yalova University Faculty of Engineering Department of Energy Systems Engineering Yalova Turkey

ISBN: (数字)9781665497510

ISBN: (纸本)9781665497510

Due to mostly economic reasons, different countries of the world use different raw materials in biodiesel production. Since the fatty acid distribution of the raw material used in biodiesel production remains almost the same during the transesterification reaction, the biodiesel raw material has a critical effect on the fuel properties of the obtained biodiesel. Therefore, the Physico-chemical properties of biodiesel fuels produced from different raw materials will be different. Among many different fuel properties, one of the most critical is the cetane number of the fuel. The cetane number, which directly affects all engine properties and is one of the most critical chemical properties of diesel/biodiesel fuels, is an important indicator of the flammability of the fuel. Ignition delay time, which can be defined as the time interval between the start of fuel injection and the start of combustion, decreases with increasing cetane number, thus limiting the rapid increase in in-cylinder pressure and temperature values. The cetane number of a fuel is measured using a cetane engine. However, since the cetane motor is a very expensive device and the determination of the cetane number is time-consuming, it can only be used in a very limited number of research centers. Instead of the cetane number, the cetane index can be calculated with a negligible margin of error. The cetane index of a fuel is an alternative parameter to the traditional cetane number used to characterize different types of diesel fuel. In this experimental study;11 different biodiesel fuels were produced from safflower oil, sunflower oil, hazelnut oil, rapeseed oil, corn oil, palm oil, cottonseed oil, soybean oil, olive oil, waste frying oil, and algae oil, and Calculated Carbon Aromaticity Index (CCAI) depending on the cetane index of these fuels. The) change was taken into account. © 2022 IEEE.

关键词： Carbon

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Annular Velocity Effect on the Lifting of Sandstone Cutting Particles in Inclined Rotating Wellbore Pipes using Novel Hydroxyapatite Nanoparticles

Annular Velocity Effect on the Lifting of Sandstone Cutting ...

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2024 SPE Nigeria Annual International Conference and Exhibition, NAIC 2024

作者： Oseh, J.O. Norddin, M.N.A.M. Duru, U.I. Ridzuan, N. Onyejekwe, I.A. Odo, J.E. Ngouangna, E.N. Ismail, I. Gbadamosi, A.O. Yahya, M.N. Gbonhinbor, J. Agi, A. Department of Petroleum Engineering Faculty of Chemical and Energy Engineering Universiti Teknologi Malaysia Johor Bahru Malaysia Malaysia Petroleum Resources Corporation Institute for Oil and Gas Universiti Teknologi Malaysia Johor Bahru Malaysia Advance Membrane Technology Research Centre Nanostructured Materials Research Group - MD - Frontier Materials Universiti Teknologi Malaysia Johor Bahru Malaysia Department of Petroleum Engineering School of Engineering and Engineering Technology Federal University of Technology Imo State Owerri Nigeria Faculty of Chemical and Process Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Al-Sultan Abdullah Pahang Gambang Malaysia Department of Petroleum Engineering King Fahd University of Petroleum and Minerals Dhahran Saudi Arabia Department of Chemical and Petroleum Engineering Bayero University Kano Gwarzo Road Kano Nigeria Department of Petroleum Engineering Niger Delta University Wilberforce Island Bayelsa State Amassoma Nigeria

ISBN: (纸本)9781959025474

Deviated wellbore regions make cutting transport harder owing to the substantially low annular velocity distribution in these regions. This causes migrating cuttings to deposit on the lower borehole wall, creating cutting beds and thus resulting in drilling problems like pipe sticking. Water-based mud (WBM) that includes nanoparticles (NPs) to remove cuttings still needs further investigation due to the substantial drop in annular velocity of the mud in inclined boreholes. This research, therefore, employed a nanohydroxyapatite (nanoHAp) additive to improve the properties of WBM, including its cutting transport ratio (CTR). All the fluid performances of nanoHAp were compared with those of aluminium oxide NPs (nano-Al2O3). An inclined cutting rig simulator of 4.88 m long, 0.0609 m ID, and 0.0305 m OD was constructed. 0.4-2.0 g of nanoHAp and nano-Al2O3 were used to clean cutting particles that were 0.80-3.60 mm in diameter and at velocities of 1.5, 2.5, and 3.5 m/s and 120 rpm. The pipes were deviated at 40°, 50°, and 60°. The results indicate that nanoHAp particles are mostly 70-600 nm in size and thermally stable at 750 oC. Additionally, the fluid consistency index demonstrates that nanoHAp and nano-Al2O3 increased the viscosity of WBM of 2.114 Pa. s by 15 to 130% and 5.7 to 94.3%, respectively. Also, nano-HAp concentrations decreased the WBM fluid loss from 9.4 mL to 8.1-5.4 mL, and nano-Al2O3 concentrations decreased it to 8.9-8.2 mL. The CTR of all the fluid samples improves with an increase in concentration and annular velocity at all hole angles. NanoHAp increased the CTR by 10.0% to 31.4% at all concentrations, hole angles, and annular velocities, while nano-Al2O3increased it by 4.0% to 27.1%. A higher percentage of CTR was observed with pipe rotation compared to without pipe rotation. The drill pipe's orbiting motion and increasing axial velocity distribution have a positive effect on CTR. Compared with 40° and 60° deviations, 50° wellbore cuttings are the m

关键词： Deflected boreholes

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Effect of ultrasonication on alkaline treatment of empty fruit bunch fibre: Fourier Transform Infrared Spectroscopy (FTIR) and morphology study

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Materials Today: Proceedings 2022年 66卷 2840-2843页

作者： Iskandar, Wan Mohd Eqhwan Ong, Huei Ruey Rahman Khan, Md. Maksudur Ramli, Ridzuan Faculty of Engineering & Technology DRB-HICOM University of Automotive Malaysia Peramu Jaya Industrial Area Pahang Pekan 26607 Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Lebuhraya Tun Razak Pahang Kuantan 26300 Malaysia No. 6 Persiaran Institusi Bandar Baru Bangi Selangor Kajang 43000 Malaysia

This study highlights the usage of ultrasonication method in NaOH surface modification of empty fruit bunch (EFB) fibre. Fibres were characterized by Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). The EFB treated by ultrasonication assisted alkali treatment shows better morphology with smoothed surface and less impurities. Furthermore, it was found that disappear of peak between 2900 and 1700 cm-1 (C[sbnd]H) evidenced the removal of hemicellulose on EFB fibre surface by alkali treatment. Moreover, Ultrasonication assisted alkali method illustrate the excellent value in enhancing the tensile stress of EFB fibre compared to other technique. The results suggest that ultrasonication assisted alkali treatment have the potential to be used in industry as the surface modification method. © 2022

关键词： Fourier transform infrared spectroscopy

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Stability and thermal conductivity of different nano-composite material prepared for thermal energy storage applications

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South African Journal of chemical engineering 2022年 39卷 72-89页

作者： Ibrahim, Sarmad I. Ali, Ahmed H. Hafidh, Sanaa A. Chaichan, Miqdam T. Kazem, Hussein A Ali, Jarinah Mohd Isahak, Wan Nor Roslam Alamiery, Ahmed Material Eng. Department University of Technology - Iraq Energy and Renewable Energies Technology Center University of Technology – Iraq Faculty of Engineering Sohar University Sohar Oman Department of Chemical and Process Engineering Faculty of Engineering and Built Environment University Kebangsaan Malaysia (UKM) P.O. Box: 43000 Bangi Selangor Malaysia

The interest in solar energy applications doubles due to the necessities of the stage, and because of it, the interest in heat storage materials expands, the most important of which is paraffins. Paraffins suffer from low thermal conductivity, so many researchers have added nanomaterials that improve this property. In this study, nano-TiO2 and MgO and a 50% mixture of each were added to the Iraqi paraffin. The addition of nanoparticles caused the paraffin to change color from brown to white with the change of absorbance and transmittance properties. The density, viscosity, and heat capacity of the products increased slightly. The thermal conductivity of the products improved and the highest value obtained was 24.92%. The melting and solidification points decreased by one degree Celsius for the case of addition of nano-TiO2 and MgO and by 2 °C for the case of addition of the hybrid nanoparticles. Besides, the period of phase change of the products decreased. The nano-paraffin mixture showed high stability for more than 90 days and it is preferable to repeat the mixing process every 6 months to ensure this property. The study concludes that the addition of hybrid nano-TiO2 and MgO to Iraqi paraffin is suitable for solar energy applications. © 2021 The Author(s)

关键词： Hybrid nanoparticles Melting-solidification cycles MgO Paraffin Thermal conductivity TiO2

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