检索结果-内蒙古大学图书馆

Advances in thermal-related analysis techniques for solid-state lithium batteries

InfoMat 2023年第4期5卷 77-116页

作者： Jianan Wang Kai Yang Shiyi Sun Qianyue Ma Gong Yi Xin Chen Ze Wang Wei Yan Xinhua Liu Qiong Cai Yunlong Zhao Department of Environmental Science and Engineering State Key Laboratory of Multiphase Flow in Power EngineeringSchool of Energy and Power EngineeringXi'an Jiaotong UniversityXi'anthe People's Republic of China Department of Chemical&Process Engineering Faculty of Engineering and Physical SciencesUniversity of SurreyGuildfordUK Advanced Technology Institute University of SurreyGuildfordUK School of Transportation Science and Engineering Beihang UniversityBeijingthe People's Republic of China

Solid-state lithium batteries(SSLBs)have been broadly accepted as a promising candidate for the next generation lithium-ion batteries(LIBs)with high energy density,long duration,and high *** intrinsic non-flammable nature and electrochemical/thermal/mechanical stability of solid electrolytes are expected to fundamentally solve the safety problems of conventional ***,thermal degradation and thermal runaway could also happen in *** example,the large interfacial resistance between solid electrolytes and electrodes could aggravate the joule heat generation;the anisotropic thermal diffusion could trigger the uneven temperature distribution and formation of hotspots further leading to lithium dendrite *** research efforts have been devoted to exploring solid electrolytes with outstanding performance and harmonizing interfacial incompatibility in the past *** have been fewer comprehensive reports investigating the thermal reaction process,thermal degradation,and thermal runaway of *** review seeks to highlight advanced thermal-related analysis techniques for SSLBs,by focusing particularly on multiscale and multidimensional thermal-related characterization,thermal monitoring techniques such as sensors,thermal experimental techniques imitating the abuse operating condition,and thermalrelated advanced *** perspectives are proposed to bridge fundamental studies to technological relevance for better understanding and performance optimization of SSLBs.

关键词： characterization monitoring simulation solid-state batteries thermal technique

来源：评论

学校读者我要写书评

暂无评论

Effects of different seed forms on crystal size distribution for seeded batch crystallization process

引用

Materials Today: Proceedings 2024年 107卷 23-28页

作者： Siti Zubaidah Adnan Noor Asma Fazli Abdul Samad Faculty of Chemical & Process Engineering Technology Universiti Malaysia Pahang Lebuh Persiaran Tun Khalil Yaakob Kuantan 26300 Pahang Malaysia

The effects of different seed forms on crystal product distribution are presented for optimizing crystal size distribution (CSD) in the case of seeded batch cooling crystallization process. Three different seed distributions and quality are introduced as variable parameter for CSD control of seeded batch crystallization process via simulation in Matlab software. Similar implementation is conducted in the experimental study using the same operating conditions and parameters. Cubic cooling profile is adapted as the temperature profile for potash alum crystallization system due to its ability to control secondary nucleation. The experimental data obtained from laboratory works are validated the simulation results from Matlab where good agreement has been achieved. In terms of mean crystal size of the final CSD, the seed profile with 0.29 standard deviation labelled Sieved Seed 2, produces the best seed profile for seeded batch potash alum crystallization process because it has the largest size of crystals at mean crystal size of 500 μm grown from 90 μm of seed crystals. However, considerable fine crystals at mean crystal size of 30 μm are also obtained indicating trade-off between large size of crystals and fine crystals are needed. In conclusion, this work highlights the effects of different seed quality in terms of distribution and shape on crystal size distribution as one of the important quality specifications in crystallization process and demonstrates narrow distribution of seed crystals as recommendation on the best seed quality for producing desired CSD.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Drying model of stingless bee pot-pollen using a swirling fluidised bed dryer 3

Drying model of stingless bee pot-pollen using a swirling fl...

引用

3rd International Postgraduate Conference on Mechanical engineering 2024, IPCME 2024

作者： Halim, Luqman Abdul Basrawi, Firdaus Yudin, Ahmmad Shukrie Md Azman, Nurul Aini Mohd Ramli, Ahmad Syazwan Faculty of Mechanical and Automotive Engineering Technology Universiti Malaysia Pahang Al-Sultan Abdullah Pekan Pahang26600 Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Al-Sultan Abdullah Pahang Gambang26300 Malaysia Malaysian Palm Oil Board Persiaran Institusi Bandar Baru Bangi 6 Selangor Kajang43000 Malaysia

Stingless Bees Pot-Pollen (SBPP), a mixture of pollen, nectar and bee enzyme made by stingless bees has high moisture content, making it susceptible to microbes and fungi growth. This can cause spoilage and become toxic to be. Thus, SBPP require suitable preservation method for storage. Current methods available such as sun drying, and oven drying can be unhygienic, inefficient, and hard to control the temperature which leads to nutrient loss. Hence, a swirling fluidized bed dryer (SFBD), a modified fluidised bed dryer with swirling airflow is proposed as it has rapid drying performance at relatively low temperature. Currently, drying models for various materials in a fluidised bed dryer has been previously studied. However, research on drying model of SBPP using a SFBD is still lacking. Therefore, the objective of this paper is to determine the most suitable drying model for drying of SBPP in a SFBD. A lab scale SFBD with a 67° swirling distributor is used to dry 25 g of SBPP at superficial air velocities of 4, 5, and 6 m/s. In this study, 7 drying models obtained from literatures are compared to determine the most suitable model for drying of SBPP in SFBD. It was found that, the Midilli-Kucuk model was the most suitable drying model compared to other drying models tested with highest average R2 (0.999307), lowest X2 (7.2 × 10-5), and lowest RMSE (2.16 × 10-2). The Midilli-Kucuk model closely predict the experimental values for all superficial air velocities tested. The experimental results also shown that increasing the superficial air velocities will lead to increase in drying rate. Thus, it can be concluded that Midilli-Kucuk model is suitable to describe the drying of stingless bee pot-pollen in SFBD. © Published under licence by IOP Publishing Ltd.

关键词： Spoilage

来源：评论

学校读者我要写书评

暂无评论

Monitoring of Absorptive Model Biogas Purification process Using Sensor Matrices and Gas Chromatography

SSRN

引用

SSRN 2024年

作者： Slupek, Edyta Dobrzyniewski, Dominik Makoś-Chelstowska, Patrycja Szulczyński, Bartosz Gębicki, Jacek Department of Process Engineering and Chemical Technology Faculty of Chemistry Gdansk University of Technology Gdansk80-233 Poland

This study presents the absorptive purification of model biogas from acetone, toluene, and cyclohexane using a new class of absorbents based on a Deep Eutectic Solvent (DES) and a commercially available absorbent (Genosorb). Purification efficiency was controlled using a conventional analytical technique based on gas chromatography (GC) and an alternative method based on sensor matrice (SM). The multidimensional SM signals were correlated and compared with the GC results. The lowest difference between SM and GC (3.69%) was obtained for the DES based on octanoic acid (OA) and nonanoic acid (NA) (1:1). With the application of Genosorb, the distinctions between the methods were slightly more pronounced, reaching 10.26%. Notwithstanding these variances, the outcomes achieved through SM demonstrated notable levels of conformity, accuracy, precision, and equivalence when compared with the GC results. Thus, SM is a promising method for practical applications, thereby enhancing its potential contribution to research. © 2024, The Authors. All rights reserved.

关键词： Gas chromatography

来源：评论

学校读者我要写书评

暂无评论

Predicament of biodegradation of microplastics in water by MLP-ANN

Predicament of biodegradation of microplastics in water by M...

引用

2022 International Conference on Electrical, Computer, Communications and Mechatronics engineering, ICECCME 2022

作者： Cvetnić, Matija Bule, Kristina Grgić, Dajana Kučić Markić, Marinko Ukić, Šime Bolanča, Tomislav University of Zagreb Faculty Od Chemical Engineering and Technology Dept. of Analytical Chemistry Zagreb Croatia University of Zagreb Faculty Od Chemical Engineering and Technology Dept. of Industrial Ecology Zagreb Croatia University of Zagreb Faculty Od Chemical Engineering and Technology Dept. of Measurements and Process Control Zagreb Croatia

ISBN: (数字)9781665470957

ISBN: (纸本)9781665470957

Microplastics particles (MP) are plastic with dimension less than 5 mm. Due to the fact that MP has very persistent chemical structure and it is very hard to degrade it;its occurrence in the environment is common and pollution from MP is increasing rapidly. One of the possible solutions is biodegradation with targeted bacteria culture. In this research it was experimented if bacteria culture Bacillus cereus will degrade MP particles of PVC. During the 30 days of experiments, it has shown that number of bacteria has grown which indicated that biodegradation occurs. In the experiments where bacterial growth is indicated most significantly peak of C=O functional group increased while peaks of stretching functional groups decreased. As monitoring of MP during the process and in complex matrix (wastewater) is not possible, modeling approach was used as an alternative. Developed model for predicting biodegradation was used MLP-ANN with 4 hidden nodes. This model show good predicting power as R2 of validation set is 0.983. With this developed model it is possible to predict stage of biodegradation and in future it is possible to simulate biodegradation of microplastics in aquatic ecosystems. © 2022 IEEE.

关键词： Microplastic

来源：评论

学校读者我要写书评

暂无评论

Direct design of crystallization-induced deracemization through direct nucleation control (DNC)

引用

Journal of Industrial and engineering Chemistry 2025年

作者： Szilágyi, Botond Department of Chemical and Environmental Process Engineering Faculty of Chemical Technology and Biotechnology Budapest University of Technology and Economics Műegyetem rkp. 3. BudapestH-1111 Hungary

This paper investigates the feasibility of direct nucleation control (DNC) for the rapid design of conglomerates’ temperature cycling induced deracemization (TCID) to obtain enantiopure products in a particle size-controlled way in a single, well-operated crystallization step. The operation is supported by enantiopure seeding in amount and size distribution that translates to the desired product size according to the material balance and McCabe's ΔL law, assuming that there are no distomer crystals in the product. The DNC ensures that in the case of any nucleation (the target enantiomer or the distomer), the newly formed crystals are dissolved, and the solids’ enantiopurity and size distribution integrity are preserved. In this context, a routinely used in-line tool, e.g., imaging or laser back-scattering-based, can help to control the deracemization in an inferential way that would be difficult to monitor directly. The simulation studies performed based on population balance-based modeling indicated the feasibility of the approach, and the thorough parametric study revealed that there is a correlation between the DNC settings and kinetic properties of the crystallization and the racemization. A SHAP interpretation of an extreme gradient boosting-based classifier allowed us to draw practical conclusions about the desired DNC operation, including working in a high-temperature range, minimizing the stirring rate, and using broader DNC count ranges. The experimental validation of the concept has yet to be performed, and it can be guided by leveraging the knowledge generated in this paper. © 2025 The Author(s)

关键词： Nucleation

来源：评论

学校读者我要写书评

暂无评论

Influence of dope composition of polyethersulfone membrane blend with cellulose nanocrystal and carboxylated multi-walled carbon nanotube on humic acid rejection 6

Influence of dope composition of polyethersulfone membrane b...

引用

6th National Conference on Postgraduate Research, NCON-PGR 2022

作者： Mahmud, Nor Azura C. Abu Seman, Mazrul Nizam Takriff, Mohd Sobri Ang, Wei Lun Saufi, Syed M. Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Lebuhraya Persiaran Tun Khalil Yaakob Gambang Kuantan Pahang26300 Malaysia Chemical and Water Desalination Engineering Program College of Engineering United Arab Emirates Department of Chemical & Process Engineering Faculty of Engineering & Built Environment Universiti Kebangsaan Malaysia Selangor Bangi43600 Malaysia

A full factorial experimental design was employed to investigate the dope composition of a membrane made of cellulose nanocrystal (CNC), multi-walled carbon nanotube (MWCNT), and polyethersulfone (PES) for its ability to reject humic acid (HA). Four factors were screened, including PES composition, polyvinylpyrrolidone content, CNC content, and carboxylated MWCNT content. The membranes were tested for HA rejection using a 10-ppm aqueous feed solution. The results indicated that the percentage of MWCNT had the most significant impact, contributing 72.31% to the overall contribution. The fabricated membranes exhibited high HA removal capacity of up to 90% for the membrane embedded with MWCNT. The model's predicted values agreed reasonably with the experimental data, indicating the model's validity. This study provides insights into the development of CNC/MWCNT/PES membranes for efficient HA rejection in water treatment applications. © 2022 Elsevier Ltd. All rights reserved.

关键词： Nanoclay

来源：评论

学校读者我要写书评

暂无评论

The potential of Moringa oleifera seeds for fungal disinfection in water

引用

Materials Today: Proceedings 2022年 57卷 1369-1372页

作者： Zakaria, Siti Nur Syazana Che Ku Yahya, Che Ku Mohammad Faizal Yahya, Noor Yahida Faculty of Civil Engineering Technology Universiti Malaysia Pahang Lebuhraya Tun Razak Pahang Darul Makmur Gambang Kuantan26300 Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Lebuhraya Tun Razak Pahang Darul Makmur Gambang Kuantan26300 Malaysia

Water contamination by fungi has earned more attention by numerous researchers, while disinfection is one of the primary methods used in drinking water treatment process to remove bacteria or fungi. In this work, a pilot study on the characterization and the performance of the regrowth fungal spores on Moringa oleifera (MO) disinfection process were investigated. Firstly, an active compound in MO seeds was extracted and characterized via Fourier-transform infrared (FTIR) and scanning electron microscopy (SEM) analyses. The extract MO then underwent a comparison set of disinfection studies without any disinfectant at different time to evaluate its performance in reducing the growth of fungal spores in water. The disinfection study reveals that fungi's spore's growth decreased from 71% to 60% from day two until day seven. In addition, these findings indicate that extract MO seeds may be a potential disinfectant for the growth of fungi in drinking water. © 2022

关键词： Potable water

来源：评论

学校读者我要写书评

暂无评论

Wellbore Cleaning Efficiency of a Bio-Based Derived Graphene Nanoplatelets Using Water Base Drilling Fluid Formulation

Wellbore Cleaning Efficiency of a Bio-Based Derived Graphene...

引用

2024 SPE Nigeria Annual International Conference and Exhibition, NAIC 2024

作者： Yahya, Muftahu N. Norddin, M.N.A.M. Ismail, Issham Rasol, A.A.A. Oseh, Jeffrey O. Rasheed, A.A. Yakasai, Faruk Agi, Augustine Department of Petroleum Engineering Faculty of Chemical and Energy Engineering Faculty of Engineering Universiti Teknologi Malaysia Johor Bahru Malaysia Department of Chemical and Petroleum Engineering Faculty of Engineering Bayero University Kano Nigeria Advanced Membrane Technology Research Centre AMTEC Nanostructured Materials Research Group NMRG - MD - Frontier Materials Universiti Teknologi Malaysia Johor Bahru Malaysia Malaysia Petroleum Resources Corporation Institute for Oil and Gas MPRC-UTM Universiti Teknologi Malaysia Johor Bahru Malaysia Department of Petroleum Engineering School of Energy and Energy Engineering Federal University of Technology Imo State Owerri Nigeria Faculty of Chemical and Process Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Pahang Gambang Malaysia Centre for Research in Advanced Fluid and Processes Fluid Centrex Universiti Malaysia Pahang Pahang Gambang Malaysia

ISBN: (纸本)9781959025474

There is always an issue with cleaning the holes, especially when drilling is taking place. Drilling fluid is crucial to moving drill cuttings from the wellbore's annular region to the surface. Graphene nanoplatelets (GNPs) surface-modified for usage in aqueous drilling fluids are investigated in this work to tackle these problems. Because it is economical and environmentally benign, a water-based mud (WBM) with modified GNP (GRT) made from rice husk was chosen to carry the cuttings. It is possible to increase hole cleaning efficiency (HCE) by creating drilling fluid with better filtration and rheological characteristics. In a laboratory scale rig simulator inclined at vertical, deviated, and horizontal angles, a 20-foot test section with 1.40-2.00mm cutting size and 0.6-0.8-1.0 L/s mud annular flowrate were used in this experiment. The concentration of the nano additive was adjusted to 0.125, 0.25, and 0.375wt%. The cutting transport ratio rises in tandem with the GRT concentration. A critical angle of 60° was found to lift the fewest cuttings, followed by 30°, 90°, and 0°. When traditional water-based drilling fluids and nano-enhanced drilling fluids were tested for their effectiveness in the cutting's removal process, it was discovered that GRT nano additives improved the cuttings transport efficiency in every experiment. According to the findings, for the various nano-enhanced water-based drilling fluids utilized in this study, the inclusion of GRT in the drilling mud enhanced the colloidal interactions with cuttings and helped to improve cuttings transportation efficiency by 40-72% in the critical hole angle. Copyright © 2024, Society of Petroleum Engineers.

关键词： Drilling fluids

来源：评论

学校读者我要写书评

暂无评论

Production of 1,3-propanediol via in situ glycerol hydrogenolysis in aqueous phase reforming using bimetallic W-Ni/CeO2

引用

Environmental Science and Pollution Research 2024年 1-18页

作者： Md Radzi, Mohamad Razlan Rosli, Siti Nor Amira Yusoff, Mohd Hizami Mohd Abidin, Sumaiya Zainal HICoE—Centre for Biofuel and Biochemical Research Institute of Self-Sustainable Building Department of Chemical Engineering Universiti Teknologi PETRONAS Perak Seri Iskandar32610 Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Al-Sultan Abdullah Lebuh Persiaran Tun Khalil Yaakob Pahang Kuantan26300 Malaysia Universiti Malaysia Pahang Al-Sultan Abdullah Persiaran Tun Khalil Yaakob Pahang Kuantan26300 Malaysia Faculty of Chemical Engineering Industrial University of Ho Chi Minh City 12 Nguyen Van Bao St Go Vap Ho Chi Minh70000 Viet Nam

The production of 1,3-propanediol via in situ glycerol hydrogenolysis and aqueous phase reforming is a promising technique to ensure high product yield with shorter reaction times and lower costs, as demonstrated in this study by investigating the effect of tungsten (W) doping on Ni/CeO2 catalysts. Physicochemical properties of catalyst were determined using XRD, H2-TPR, NH3-TPD, BET, and FESEM-EDX techniques, and the catalytic performance was investigated at 230 °C, 20 bar, and 5 wt.% glycerol in an autoclave batch reactor. W doping ranging from 1–7% improved the catalyst’s performance, with 3% W in 10% Ni/CeO₂ (3W10NC) achieving the highest yield (2.4%), selectivity (33.3%), and a good conversion rate (72.18%). The effect of reaction parameter on the 3W10NC catalyst showed that increasing pressure and temperature from the initial parameters had a detrimental effect on 1,3-propanediol attributed to the phenomenon called over-hydrogenolysis. Increasing the glycerol concentration to 20 wt.% also had a positive effect, resulting in the highest 1,3-propanediol yield of 22.27%. The effect of reaction time study revealed that the yield of 1,3-propanediol continued to increase steadily, reaching 38.29% after 4 h of reaction under the optimal conditions of 230 °C, 20 bar, and 20 wt.% glycerol. The kinetic study confirmed that the reaction follows first-order reaction with activation energy of 20.104 kJ mol−1. The catalyst reusability test revealed a decrease in the yield of 1,3-propanediol to 32.55%, likely due to deactivation caused by sintering and leaching, as indicated by the FESEM micrograph, EDX spectra, and NH3-TPD. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Activation energy

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：