Article
Engineering, Environmental
Hao Wang, Gengming Jiang, Qing Han, Yi Cheng
Summary: In this study, MIL-water Janus droplets were successfully generated in a micro-channel, and seven typical flow patterns were analyzed. The scaling law of MIL-water Janus droplet size was investigated to reveal the breakup mechanism of biphasic dispersed phases. Additionally, the morphology control of surfactant-free MIL-water Janus droplets was qualitatively and quantitatively studied, showing the evolution to a core-shell structure.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Kai Feng, Ning Gao, Wenyun Li, Hao Dong, Fuwei Sun, Guokang He, Kang Zhou, Hongwei Zhao, Guangtao Li
Summary: This study presents a simple method to construct multicompartment assemblies by first forming IL droplet networks and then polymerizing to generate the multicompartment assemblies. The approach avoids tedious surface modification and assembly processes, allowing for efficient preparation of various structured multicompartment assemblies.
Article
Chemistry, Analytical
Gui-Ping Zhu, Qi-Yue Wang, Zhao-Kun Ma, Shi-Hua Wu, Yi-Pan Guo
Summary: The magnetic manipulation of droplets is an emerging technology that integrates multiple disciplines and enables remote and programmable control. It has great potential for research and engineering applications. However, there are still challenges related to magnetic field design, material selection, and droplet performance stability.
Article
Engineering, Environmental
Haozhe Yi, Taotao Fu, Chunying Zhu, Youguang Ma
Summary: This study experimentally investigated the local deformation and head-on coalescence dynamics of droplets in a cross-focused microchannel. The dynamic process was divided into squeezing and decompressing stages, and the flow patterns were studied in relation to the moment of liquid film rupture. The research explored the effects of various factors on the coalescence process and proposed a predictive equation for the nipple angle.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Nhat-Khuong Nguyen, Pradip Singha, Hongjie An, Hoang-Phuong Phan, Nam-Trung Nguyen, Chin Hong Ooi
Summary: This paper explores the use of electrostatic force to induce vibration and deformation in liquid marbles for improved mixing performance. Results demonstrate significant enhancement in mixing performance when they were actuated, with higher electric field strengths further promoting the mixing process. These findings highlight the potential of utilizing liquid marbles as high-performance micromixers through mechanisms of vibration and deformation.
REACTION CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Mahbod Mohammadrashidi, Parnian Azizian, Mohamad Ali Bijarchi, Mohammad Behshad Shafii
Summary: Liquid marbles, controlled by an external magnetic field, are being studied for their potential in digital microfluidics as a replacement for conventional droplets. This study experimentally and theoretically investigates the vibration and jumping behavior of a ferrofluid marble. The results provide insights into the vibrational characteristics and surface tension of the liquid marble, as well as propose a novel theoretical model for measuring liquid viscosity and predicting the jumping height of liquid marbles.
Article
Mechanics
Sudip Shyam, Bhavesh Dhapola, Pranab Kumar Mondal
Summary: We study the breakup dynamics of a ferrofluid droplet in a T-shaped Lab on a Chip device under a non-uniform magnetic field. Experimental and numerical results show that the asymmetric distribution of magnetic force lines induces the asymmetric splitting of the droplet into two sister droplets. We also find that the size of the sister droplets can be independently controlled by manipulating the applied force field gradient.
JOURNAL OF FLUID MECHANICS
(2022)
Article
Chemistry, Analytical
Masoud Rezaeian, Moein Nouri, Mojtaba Hassani-Gangaraj, Amir Shamloo, Rohollah Nasiri
Summary: This study investigates the effect of magnetic field characteristics on the efficiency of mixing processes within droplets. It is found that increasing the magnetic field intensity enhances the mixing efficiency. The study also examines the effect of ferrofluid concentration on mixing efficiency and finds that increasing the concentration significantly improves mixing efficiency.
Article
Chemistry, Multidisciplinary
Vahid Nasirimarekani, Fernando Benito-Lopez, Lourdes Basabe-Desmonts
Summary: The technology involves manipulating droplets using a magnetic field through the addition of magnetic particles or using magneto responsive surfaces. The experimental study presented and characterized a tunable superparamagnetic ring which stabilizes and enables physical manipulation of droplets on a surface. This work opens new applications in microfluidics and studies on tunable interfaces between immiscible liquids.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Xuezhong Zhang, Zijian Dai, Jie Chen, Xin Chen, Xiong Lin, Shuang Yang, Kai Wu, Qiang Fu, Hua Deng
Summary: Currently, the introduction of a gradient structure in moisture-electricity generators (MEGs) has significantly improved their output performance. However, it has been impossible to combine ion density and hydrophilicity gradients in one system, limiting the power and duration of MEGs. This study presents double-gradient aerogel-based MEGs prepared using carbon nanotubes and polymer dendritic colloids, which show industry-leading energy density, power density, and duration. The MEGs also have potential applications in humidity sensing, low-power device power supply, and seawater desalination, providing an inspiring approach for energy harvesting.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Huadan Xu, Tianyou Wang, Zhizhao Che
Summary: This study experimentally investigates the coalescence dynamics of immiscible droplets and finds that immiscibility plays different roles in different stages. A theoretical model and a modified Ohnesorge number are proposed to analyze and characterize the effects of immiscibility in the coalescence process.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yu Wang, Jinbo Li, Lingyu Sun, Hanxu Chen, Fangfu Ye, Yuanjin Zhao, Luoran Shang
Summary: Inspired by electric toothbrushes, a revolving microfluidic system is developed to generate liquid metal droplets and construct desired elastomers for flexible electronics. The system allows for high-throughput production of droplets with controlled size, and the generated droplets can be used as conductive fillers in a poly(dimethylsiloxane) (PDMS) matrix directly. The resulting elastomers exhibit high mechanical strength, stable electrical performance, and superior self-healing property, and can easily achieve various patterned designs due to the programmable feature of the embedded liquid metal droplets.
ADVANCED MATERIALS
(2023)
Article
Engineering, Chemical
Xin Huang, Yijia Lu, Wanrui Li, Xiaoming Luo, Weidong Li, Jiaqing Li, Pengbo Yin, Lin Teng
Summary: The characteristics and mechanism of droplet non-coalescence under a DC electric field are investigated using high-speed microscopic experiments, molecular dynamics simulations, and interface dynamics simulations. The research shows that the evolution of liquid bridge determines whether two droplets coalesce or not. The evolution is influenced by the electric force F-E, capillary force F-i, and viscous force. The relative strength of F-E and F-i depends on the electric capillary number Ca and the maximum liquid bridge radius R*(max). The findings have significant implications for efficient demulsification of water-in-oil emulsion.
Article
Chemistry, Analytical
Yutaka Kazoe, Yusuke Shimizu, Kyojiro Morikawa, Yasushi Terui, Takashi Irie, Takehiko Kitamori
Summary: This study presents a method for shooting picoliter droplets in a controlled direction using microscale gas-phase laminar flows applied to a mass spectrometry interface. A microfluidic device with a branched and stepped hydrophobic microchannel was fabricated to achieve high-efficiency sample transport to a single quadrupole mass spectrometer. By understanding and utilizing capillary force and drag force, a design guideline was established for efficient droplet shooting.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Nanoscience & Nanotechnology
Kerstin Schirrmann, Gabriel Caceres-Aravena, Anne Juel
Summary: Coated droplets self-assemble into regular clusters at the sudden expansion of a microfluidic channel. The assembly is achieved through droplet coalescence at the expansion point, forming clusters of finite size. Observations suggest that cluster size is limited by experimental fluctuations, and this self-assembly method offers a robust alternative for encapsulating multiple cores in a single coating film.
MICROFLUIDICS AND NANOFLUIDICS
(2021)
Article
Engineering, Chemical
C. Shen, Y. Li, Y. J. Wang, J. H. Xu, G. S. Luo
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2015)
Article
Chemistry, Applied
Wang Yue, Jing Yu, Hou Hailong, Xu Jianhong, Wang Yundong
JOURNAL OF RARE EARTHS
(2015)
Article
Engineering, Chemical
Liantang Li, Jisong Zhang, Kai Wang, Jianhong Xu, Guangsheng Luo
Article
Engineering, Environmental
Zhen-Hao Tian, Jian-Hong Xu, Yu-Jun Wang, Guang-Sheng Luo
CHEMICAL ENGINEERING JOURNAL
(2016)
Article
Engineering, Environmental
Y. K. Li, K. Wang, J. H. Xu, G. S. Luo
CHEMICAL ENGINEERING JOURNAL
(2016)
Article
Engineering, Environmental
Zhen-Hao Tian, Yu Jun Wang, Jian-Hong Xu, Guang-Sheng Luo
CHEMICAL ENGINEERING JOURNAL
(2016)
Article
Engineering, Chemical
Jiahui Li, Yang Chen, Mingzhao Guo, Yujun Wang, Jianhong Xu, Guangsheng Luo, Huimin Yu
CHEMICAL ENGINEERING SCIENCE
(2016)
Article
Engineering, Chemical
Hailong Hou, Jianhong Xu, Yundong Wang, Jinnan Chen
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2016)
Review
Engineering, Chemical
Xuehui Ge, Hong Zhao, Tao Wang, Jian Chen, Jianhong Xu, Guangsheng Luo
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2016)
Article
Chemistry, Multidisciplinary
C. Shen, Y. J. Wang, J. H. Xu, G. S. Luo
Article
Biochemistry & Molecular Biology
Hong Zhao, Qing Cui, Vishva Shah, Jianhong Xu, Tao Wang
JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC
(2016)
Article
Chemistry, Physical
Xue-Hui Ge, Jin-Pei Huang, Jian-Hong Xu, Jian Chen, Guang-Sheng Luo
Article
Chemistry, Physical
Le Du, Yujun Wang, Jianhong Xu, Chun Shen, Guangsheng Luo
Article
Chemistry, Multidisciplinary
Wen-Ting Wang, Fu-Ning Sang, Jian-Hong Xu, Yun-Dong Wang, Guang-Sheng Luo
Article
Engineering, Chemical
Qing Han, Mengqing Shi, Linkai Han, Di Liu, Mingwei Tong, Yuxin Xie, Zhonghua Xiang
Summary: Developing highly efficient bifunctional oxygen electrocatalysts is crucial for zinc-air flow batteries. Metal-organic frameworks (MOFs) and covalent organic polymers (COPs) have emerged as promising alternatives due to their designable and controllable atomic-level structures. However, their catalytic performances are limited by conductivity and catalytic activity. In this study, nanosheet FeNi-MOF and iron phthalocyanine rich COP hybrid materials are assembled through the pi-pi stacking effect to create highly efficient bifunctional electrocatalysts. The resulting catalyst exhibits superior catalytic performance and stability, making it a promising candidate for zinc-air flow batteries.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Daria Grigorash, Dmytro Mihrin, Rene Wugt Larsen, Erling H. Stenby, Wei Yan
Summary: The article introduces a new approach to describe the cross-association between molecules, allowing for the simulation of weakly bound molecular complexes with different conformations in mixtures. By incorporating this approach into the equation of state, accurate predictions of vapor-liquid equilibrium and liquid-liquid equilibrium can be made. The new method is validated through experiments on alcohol and acid mixtures, with the results compared to experimental data, demonstrating its accuracy and reliability.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Mohammed Al-Sharabi, Daniel Markl, Vincenzino Vivacqua, Prince Bawuah, Natalie Maclean, Andrew P. E. York, Axel Zeitler
Summary: This study used terahertz pulsed imaging to investigate the transport process of different solvents into ceramic catalytic materials. The results showed that the heating rate of the samples influenced the water transport rate, while the viscosity of 1-octanol slowed down its transport.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chukwunonso Anyaoku, Sati Bhattacharya, Rajarathinam Parthasarathy
Summary: This study aimed to enhance understanding of settling dynamics in viscoelastic fluids by developing a semi-empirical correlation and a dimensionless ratio, which accurately described the characteristics of settling suspensions.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Antti I. Koponen, Janika Viitala, Atsushi Tanaka, Baranivignesh Prakash, Olli-Ville Laukkanen, Ari Jasberg
Summary: This study focuses on the development of foam application chemicals for the paper and board industry. The research explores the rheology of the polyvinyl alcohol foam used in the process. Measurements were conducted to determine the foam viscosity and slip flow. The results suggest that slip flow contributes significantly to the total flow rate, and the obtained viscosity and slip models provide a solid foundation for industrial processes.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Dalei Sun, Jinghui Cai, Yating Yang, Zhiwu Liang
Summary: In this study, Fe-doped alpha-Bi2O3 catalysts with different Fe/Bi molar ratios were synthesized and utilized in the carbonylation of isobutyl amine with CO2. The results showed that Fe doping significantly enhanced the catalytic abilities of alpha-Bi2O3.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Yuan Tian, Xinxin Wang, Yanrong Liu, Wenping Hu
Summary: This paper predicts the solubility of nitrogen gas in ionic liquids (ILs) using two quantitative structure-property relationship (QSPR) models. By combining machine learning methods and ionic fragments contribution method, the accuracy and reliability of the prediction models are improved.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Liwang Wang, Wei Liu, Pan Yang, Yulong Chang, Xiaoxu Duan, Lingyu Xiao, Yaoming Hu, Jiwei Wu, Liang Ma, Hualin Wang
Summary: This study investigates the effective phase interfacial area (ae) of hydro-jet cyclones at different injection angles. The results show that a 45 degrees upward incidence angle yields the most favorable flow field characteristics for efficient mass transfer. The significant enhancement in ae of the hydro-jet cyclones offers the advantage of reducing equipment volume and cost savings.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chuanjun Wu, Jiangzhi Chen, Jiyue Sun, I-Ming Chou, Shenghua Mei, Juezhi Lin, Lei Jiang
Summary: In this study, the solubility of H2S hydrate in water was measured using Raman spectroscopy. The results showed that the solubility increases with temperature under certain equilibrium conditions, and the solubility also depends on pressure and temperature under different equilibrium conditions. A thermodynamic model based on the van der Waals-Platteeuw theory was developed to predict the solubility, demonstrating its accuracy.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Lorenzo Brivio, Serena Meini, Mattia Sponchioni, Davide Moscatelli
Summary: This study investigates the influence of three main parameters and proposes a kinetic model to predict the optimal operating conditions for high yield of dimethyl terephthalate (DMT) in the chemical recycling process of polyethylene terephthalate (PET).
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Hongju Lin, Fanhui Liao, Yanchang Chu, Mingyu Xie, Lun Pan, Yuanyuan Wang, Lijian Leng, Donghai Xu, Le Yang, Gangfeng Ouyang
Summary: A honeycomb NiCo/C-Na catalyst with a micro-meso-macroporous structure has been fabricated and shown to have significantly higher catalytic activity for the decarboxylation of fatty acids. It also proves to be efficient in upgrading sludge HTL bio-crude, resulting in a biofuel with decreased viscosity and increased density.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Xiaoxian Li, Rui Li, Min Lin, Mingde Yang, Yulong Wu
Summary: A series of coated non-noble metal porous carbon catalysts were synthesized and applied to the aqueous-phase deoxygenation of algal bio-oil. One of the catalysts showed excellent deoxygenation selectivity and catalytic activity at 250 degrees C. The catalyst exhibited good hydrothermal stability and the reaction mechanism was proposed based on product analysis and active site analysis.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
M. V. Chudakova, M. V. Popov, P. A. Korovchenko, E. O. Pentsak, A. R. Latypova, P. B. Kurmashov, A. A. Pimenov, E. A. Tsilimbaeva, I. S. Levin, A. G. Bannov, A. V. Kleymenov
Summary: A series of catalysts with different potassium contents were prepared using solution combustion synthesis and characterized using various techniques. The results showed that the potassium content affected the phase composition and texture of the catalysts. The addition of a small amount of potassium resulted in a change in particle size distribution, leading to higher hydrogen yield. The Ni-1%K2O/Al2O3 catalyst exhibited the highest hydrogen yield at temperatures of 675 and 750 degrees Celsius.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Aliakbar Roosta, Nima Rezaei
Summary: In this study, we modified the electrolyte cubic plus association equation of state (e-CPA EoS) and integrated it with two electrical conductivity models to estimate the electrical conductivity of 11 monovalent electrolyte solutions in water. The modified e-CPA model demonstrated better performance and the hybridization with electrical conductivity models resulted in two predictive models for estimating the electrical conduction of dilute and concentrated electrolyte solutions. These predictive models showed relative average percentage deviations (AARD) of 11.15% and 13.87% over wide ranges of temperature and electrolyte concentration.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Haoren Niu, Jianzheng Wang, Qingzhu Jia, Qiang Wang, Jin Zhao, Fangyou Yan
Summary: A study developed two quantitative structure-property relationship models for the complexation performance of alpha- and beta-cyclodextrins and validated their stability and predictive ability through internal and external validation. The models showed robustness and satisfactory performance, as demonstrated by the experimental results and model validations. These models can effectively predict the binding constants between cyclodextrins and various types of molecules, providing valuable tools for cyclodextrin design.
CHEMICAL ENGINEERING SCIENCE
(2024)