Journal of Physical Science最新文献_第4页

Performance Enhancement of Poly (Vinyl Alcohol) Composite Polymer Electrolyte for Li-Ion Battery Through Salt Immersion Process 盐浸法提高锂离子电池用聚乙烯醇复合聚合物电解质性能

IF 0.7

Journal of Physical Science Pub Date : 2022-11-30 DOI: 10.21315/jps2022.33.3.3

C. Rina Ratri, Q. Sabrina, T. Lestariningsih, Salsabila Zakiyyah

引用次数: 0

Physiochemical and Electrochemical Properties of Lanthanum Strontium Cobalt Ferum–Copper (II) Oxide Prepared via Solid State Reaction 固相反应制备镧锶钴铁铜氧化物的理化和电化学性能

IF 0.7

Journal of Physical Science Pub Date : 2022-11-30 DOI: 10.21315/jps2022.33.3.7

Ahmad Fuzamy Mohd Abdul Fatah, M. N. Murat, Noorashrina A. Hamid

{"title":"Physiochemical and Electrochemical Properties of Lanthanum Strontium Cobalt Ferum–Copper (II) Oxide Prepared via Solid State Reaction","authors":"Ahmad Fuzamy Mohd Abdul Fatah, M. N. Murat, Noorashrina A. Hamid","doi":"10.21315/jps2022.33.3.7","DOIUrl":"https://doi.org/10.21315/jps2022.33.3.7","url":null,"abstract":"Lanthanum strontium cobalt ferum (LSCF) with addition of copper oxide (CuO) can serve as an alternate cathode material in Intermediate Temperature Solid Oxide Fuel Cell (IT-SOFC) due to its strong catalytic activity for oxygen reduction process at intermediate temperatures and great chemical compatibility. This study was done to determine the viability of LSCF–CuO composite as a material for the IT-SOFC cathode. The cathode powder was synthesised using the conventional solid-state process at intermediate temperatures range (600ºC–900ºC). The thermogravimetric analysis demonstrated that when LSCF was calcined at temperatures over 600ºC, the weight loss curve flattened. In the meantime, x-ray diffraction revealed that the perovskite structure of LSCF-CuO was completely formed after calcined at 800ºC. Moreover, the Brunauer– Emmett–Teller (BET) and scanning electron microscope investigations demonstrated that as the calcination temperature rose, the LSCF–CuO particles tended to grow. The electrochemical impedance spectroscopy investigation revealed polarisation resistance of samples calcined at 800ºC (0.41 Ωcm2) was significantly lower than that of samples calcined at 600ºC (29.57 Ωcm2). Judging from chemical, physical and electrochemical properties, it is evidence that LSCF-CuO prepared via simple solid-state reaction has a potential to be used as cathode material for IT-SOFC.","PeriodicalId":16757,"journal":{"name":"Journal of Physical Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73848138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of PES/PDMS/ZIF-L Composite Membrane for CO2, N2 and CH4 Permeation PES/PDMS/ZIF-L复合膜的制备及其对CO2、N2和CH4的渗透性能

IF 0.7

Journal of Physical Science Pub Date : 2022-11-30 DOI: 10.21315/jps2022.33.3.2

M. S. Shah Buddin, A. Ahmad

引用次数: 0

Simulation of Pt80Au14Ti6 Work Function Change-Based Sensor of H2 Gas 基于Pt80Au14Ti6功函数变化的H2气体传感器仿真

IF 0.7

Journal of Physical Science Pub Date : 2022-11-30 DOI: 10.21315/jps2022.33.3.4

R. Marjunus, Yusril Al Fath, Y. Yulianti, W. Widanarto

{"title":"Simulation of Pt80Au14Ti6 Work Function Change-Based Sensor of H2 Gas","authors":"R. Marjunus, Yusril Al Fath, Y. Yulianti, W. Widanarto","doi":"10.21315/jps2022.33.3.4","DOIUrl":"https://doi.org/10.21315/jps2022.33.3.4","url":null,"abstract":"Chemical reactions simulation in detecting hydrogen gas (H2) on Pt80Au14Ti6 sensor surface based on work function change (Δɸ) has been conducted. The simulation result is compared with laboratory results of detecting H2 gas. Three chemical reactions contained three coverages, H coverage (θH), O coverage (θO), and H2O coverage (θH2O). The simulation was run using MATLAB. This research can find the reaction parameter values such as the Arrhenius coefficient of H2O forming reaction on Pt (υf3Pt), H2O forming reaction on Au (υf3Au), i.e., H2O dissociation on Au (υf3Au ), O2 desorption on Ti (υd2Ti), H2O forming reaction on Ti (υf3Ti), and H2O dissociation on Ti (υf3Ti), i.e., 7.5×1014 s–1, 9.85×1015 s–1, 3.25×1015 s–1, 7.11×1015 s–1, 3.425×1015 s–1 and 2.725×1015 s–1, respectively. The simulation results also have the same trend as the laboratory results. However, the contact potential difference (CPD) simulation result, i.e., –240 mV, is not the same as the laboratory result, (–297± 9) mV. In addition, this simulation also obtained approximation coverage for atoms/molecules on PT80Au14Ti6 surface, i.e., θH = 0.665154 Mono Layer (ML); θO = 1.5621× 10–6 ML; and θH2O = 5.41676 ×10–5 ML.","PeriodicalId":16757,"journal":{"name":"Journal of Physical Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72510220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Coupling Agent on Properties of Composites Made from Styrofoam Waste and Coconut Shell 偶联剂对聚苯乙烯泡沫塑料废料与椰子壳复合材料性能的影响

IF 0.7

Journal of Physical Science Pub Date : 2022-11-30 DOI: 10.21315/jps2022.33.3.1

Koay Seong Chun, Subhramani Thangamuthu, Chan Ming Yeng, Ong Thai Kiat

{"title":"Effect of Coupling Agent on Properties of Composites Made from Styrofoam Waste and Coconut Shell","authors":"Koay Seong Chun, Subhramani Thangamuthu, Chan Ming Yeng, Ong Thai Kiat","doi":"10.21315/jps2022.33.3.1","DOIUrl":"https://doi.org/10.21315/jps2022.33.3.1","url":null,"abstract":"Styrofoam is amongst one of the highly used packaging materials due to its lightweight and vibration isolate properties. The usage of styrofoam rises yearly, but it is seldom received by the recycling facilities to recycle the post-consumed styrofoam due to the poor economic viability. The objective of this research is to investigate the potential value of recycling post-consumed styrofoam as feedstock in producing sustainable composite materials. Therefore, this study would increase the feasibility and interest in recycling of styrofoam and indirectly continue the life cycle of styrofoam waste. In this study, the composites with varying compositions were of recycled polystyrene (rPS), coconut shell (CS) and maleated polystyrene (MAPS) compounded using an internal mixer. The effects of compositions on torque rheological, flexural and morphological properties of the composites were investigated. The findings showed that rPS/CS composites filled with more CS content possesses higher processing torque due to increase in viscosity. However, addition of MAPS lowered the viscosity of composites. The flexural properties revealed that the rPS/CS composites without MAPS exhibited the highest flexural strength and modulus of 33.5 MPa and 3.1 GPa, respectively, when the CS content was measured at 30 wt%. Then, the addition of MAPS improved on average 29% of flexural strength and 14% of flexural modulus, individually. The results from scanning electron microscopy showed that the addition of MAPS had improved the interfacial adhesion between rPS matrix and CS particles, which resulted in an improvement on flexural properties. The flexural properties of rPS/CS composites are comparable to wood plastic composites (WPC) as found in literature, which demonstrates its potential to be used in applications similar to WPC.","PeriodicalId":16757,"journal":{"name":"Journal of Physical Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89865809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Quartz in Clay on Grindability of Raw Mixes for Cement Production 粘土中石英对水泥原料可磨性的影响

IF 0.7

Journal of Physical Science Pub Date : 2022-08-25 DOI: 10.21315/jps2022.33.2.3

K. E. H. Ku Ishak, S. F. Saiyid Hashim, Khairun Azizi Mohd Azizli, S. Palaniandy, H. Hussin

{"title":"Effect of Quartz in Clay on Grindability of Raw Mixes for Cement Production","authors":"K. E. H. Ku Ishak, S. F. Saiyid Hashim, Khairun Azizi Mohd Azizli, S. Palaniandy, H. Hussin","doi":"10.21315/jps2022.33.2.3","DOIUrl":"https://doi.org/10.21315/jps2022.33.2.3","url":null,"abstract":"High quartz content in clay substantially impacts the grinding of raw mix, quality of clinker and final cement produced. The presence of quartz requires very fine grinding and a long sintering time to react significantly, all of which are very expensive. This study assessed an extensive plant sample which involved a vertical roller mill to determine the correlation between quartz content in clay to the 90 μm residue, feed rate, clinker microstructure and mill power. The characterisation study performed on raw materials revealed three clay categories based on quartz content, namely low, normal and high quartz at (42.4%–48.8%), (57.1%–64.9%) and (81.5%–89.3%), respectively. The grinding test showed an increment of 90 μm residue for high-quartz clay. Meanwhile, high, medium and low feed rates generated the most coarse, coarse and fine products, respectively. Based on the distribution curve of mill products, high quartz content in clay significantly reduced the particles passing percentage. Coarser particles were observed to be present in mill products for the high-quartz category compared to the low-quartz clay and normal-quartz clay, signifying inadequate size reduction for the high-quartz clay in the vertical roller miller. The power consumption was higher (7.2 kWh/t–9.0 kWh/t) for grinding raw mixes that contained high-quartz clay than low-quartz clay. This study provided a significant relationship between grindability and the amount of quartz content in clay with the purpose of optimising the grinding process when dealing with high-quartz content in clay.","PeriodicalId":16757,"journal":{"name":"Journal of Physical Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78623595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Optimisation of Ibuprofen Extraction by Emulsion Liquid Membrane Using Box-Behnken Design Box-Behnken法优化乳状液膜提取布洛芬的工艺

IF 0.7

Journal of Physical Science Pub Date : 2022-08-25 DOI: 10.21315/jps2022.33.2.6

Mohd Hazarel Zairy Mohd Harun, A. Ahmad

引用次数: 1

Compatibility of Concentrated NaOH as a Precipitation Agent in the Synthesis of Maghemite (γ-Fe2O3) Nanoparticles via Co-precipitation Method 浓氢氧化钠作为沉淀剂在共沉淀法合成磁赤铁矿(γ-Fe2O3)纳米颗粒中的相容性

IF 0.7

Journal of Physical Science Pub Date : 2022-08-25 DOI: 10.21315/jps2022.33.2.4

Hamisah Ismail, Z. Zainuddin, H. Mohamad, Muhammad Azmi Abdul Hamid

{"title":"Compatibility of Concentrated NaOH as a Precipitation Agent in the Synthesis of Maghemite (γ-Fe2O3) Nanoparticles via Co-precipitation Method","authors":"Hamisah Ismail, Z. Zainuddin, H. Mohamad, Muhammad Azmi Abdul Hamid","doi":"10.21315/jps2022.33.2.4","DOIUrl":"https://doi.org/10.21315/jps2022.33.2.4","url":null,"abstract":"Maghemite (γ-Fe2O3) nanoparticles were synthesised using the coprecipitation method, with different concentrations (5 M, 10 M, 11 M, 12 M and 13.4 M) of sodium hydroxide (NaOH) as the precipitation agent. The resulting powder was characterised using x-ray diffraction (XRD), vibrating sample magnetometer (VSM), and transmission electron microscope (TEM). All characterisations were performed at room temperature. The XRD results showed that the γ-Fe2O3 powder was in a single phase for samples synthesised using 11 M, 12 M and 13.4 M NaOH and the crystallite size ranged between 5.74 nm–6.42 nm. TEM observations and analysis showed that the particles were in a cubo-spheroidal shape and the mean physical size of the nanoparticles was between 8.52 nm and 8.59 nm. Hysteresis loop indicated that γ-Fe2O3 nanoparticles have superparamagnetic properties with an acceptable range of saturation magnetisation of 31.08 emu/g–48.88 emu/g and negligible coercivity value. MTT assay demonstrated that the γ-Fe2O3 nanoparticles exhibited biocompatibility with V79-4 cells at different dosages (1000 μg/mL–50 μg/mL) for 48 h. The results suggested that maghemite can be a valuable low-cost biomagnetic material in biomedical applications.","PeriodicalId":16757,"journal":{"name":"Journal of Physical Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87676449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Green Synthesised Bismuth Ferrite for PVA-PANI-BFO Polymer-Nanocomposite Membrane: Impacts on Ionic Conductivity with Variation of Relative Humidity PVA-PANI-BFO聚合物-纳米复合膜绿色合成铋铁氧体:相对湿度变化对离子电导率的影响

IF 0.7

Journal of Physical Science Pub Date : 2022-08-25 DOI: 10.21315/jps2022.33.2.2

Diptarka Roy, Kamlesh Pandey, A. Yadav

{"title":"Green Synthesised Bismuth Ferrite for PVA-PANI-BFO Polymer-Nanocomposite Membrane: Impacts on Ionic Conductivity with Variation of Relative Humidity","authors":"Diptarka Roy, Kamlesh Pandey, A. Yadav","doi":"10.21315/jps2022.33.2.2","DOIUrl":"https://doi.org/10.21315/jps2022.33.2.2","url":null,"abstract":"Bismuth ferrite (BFO) nanoparticles were synthesised by an environment-friendly process using the moringa oleifera leaf extract. The synthesised BFO nanoparticles were used as nanofiller to synthesise PVA-PANI-BFO polymernanocomposite membrane. Also, the PVA-PANI polymer membrane was synthesised for a comparative study purpose between PVA-PANI and PVA-PANI-BFO membranes. Both the polymer and polymer-nanocomposite membranes were synthesised by the solution cast technique. The Green synthesised BFO nanoparticles and the synthesised membranes were characterised by spectroscopic techniques such as X-ray diffraction (XRD), RAMAN and fourier-transform infrared spectroscopy (FTIR). XRD patterns confirm the BiFeO3 phase of the synthesised BFO nanoparticles, as well as the existence of PVA, PANI and BFO in the membrane. The Raman spectrum for the synthesised nanoparticles exhibits BFO characteristic bands. The bands of polyvinyl alcohol (PVA) and polyaniline (PANI) are also seen for the membranes. FTIR spectrum indicates some phytochemicals as the functional groups in the synthesised BFO nanoparticles. The surface structures of the synthesised membranes were characterised by field emission scanning electron microscopy (FESEM). Ionic conductivities of the synthesised membranes were calculated by estimating bulk resistance of them from Cole-Cole plots that were obtained with the help of an impedance spectrometer. The conductivities of the membranes change with the relative humidity (RH).","PeriodicalId":16757,"journal":{"name":"Journal of Physical Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88150195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A Comparative Study on the Radiation Attenuation Properties of Iron and Stony Meteorites: A Case of Mundrabilla and NWA 7629 Meteorites 铁陨石与石质陨石辐射衰减特性的比较研究——以Mundrabilla和NWA 7629陨石为例

IF 0.7

Journal of Physical Science Pub Date : 2022-08-25 DOI: 10.21315/aos2022.33.2.5

C. Eke

引用次数: 0