Review
Materials Science, Paper & Wood
Sanghun Shin, Sangyeun Park, Anju Toor, Hongyun So
Summary: Cellulose-based electrothermal heaters combine a cellulose substrate with a heat generator to transform electrical energy into heat and offer various benefits. Considering the increasing demand for sustainable materials and clean energy, cellulose-based electrothermal heaters are promising solutions.
Review
Biochemical Research Methods
Xiangchun Xuan
Summary: Insulator-based dielectrophoresis (iDEP) is increasingly used for particle manipulation in microfluidic applications. However, the presence of insulators can cause two nonlinear electrokinetic flows, induced charge electroosmotic (ICEO) flow and electrothermal flow, which vary nonlinearly with the applied electric field. These flows have both been utilized to promote certain applications and may affect the linear electrokinetic motion of particles.
Article
Materials Science, Multidisciplinary
Pei Yang, Tian Xia, Subrata Ghosh, Jiacheng Wang, Shelley D. Rawson, Philip J. Withers, Ian A. Kinloch, Suelen Barg
Summary: The study presents a novel 3D epoxy resin/Ti3C2Tx MXene composite material prepared using a unidirectional freeze-casting technique, demonstrating excellent Joule heating performance for electrothermal applications. The composite offers a potential alternative to traditional metal-based and nanocarbon-based electrothermal materials, providing a simple and cost-effective method for preparation.
Article
Biochemical Research Methods
Le Song, Liandong Yu, Christian Brumme, Ryan Shaw, Cheng Zhang, Xiangchun Xuan
Summary: This study presents the first exploration of Joule heating effects in electrokinetic microchannel flows with conductivity gradients, revealing that Joule heating increases the critical electric field for electrokinetic instability and leads to a smaller electric Rayleigh number.
Review
Chemistry, Physical
Xin Tao, Dongxue Tian, Shanqing Liang, Peng Jiang, Longfei Zhang, Feng Fu
Summary: Cellulose-based electrothermal composites are functional materials with outstanding properties, and have broad applications in clean energy and sustainable development.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Dong Xia, Heng Li, Chengcheng Shen, Peng Huang
Summary: A comprehensive understanding of the electrothermal characteristics and phenomena of nanocarbon aerogels is essential for optimizing their Joule-heating performance and expanding their applications. This study investigates the impact of density on Joule heating by examining reduced graphene oxide aerogels and reduced graphitized nanofiber aerogels with different densities. The results show that aerogels with higher densities exhibit improved electrical and thermal conductivities, while low-density aerogels have more pronounced heating features and efficiency, making them suitable for energy-efficient applications. Regardless of density variations, all the fabricated aerogels display efficient electron hopping, enabling uniform resistive heating throughout the aerogel structure.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Chemical
Brian Gidudu, Evans M. N. Chirwa
Summary: The study revealed that the electrokinetic system can efficiently extract and recover biosurfactants, with the best results achieved under a voltage of 30V. Biosurfactants extracted using the electrokinetic system had fewer impurities compared to those recovered by acid precipitation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Geological
Yani Liu, Yan-feng Zhuang, Fang Xiao, Zhitao Liu
Summary: This study observed the occurrence of electroosmotic flow from the cathode to the anode in acidified kaolin, which had an impact on the electrokinetic remediation of lead-contaminated kaolin. Experimental results showed that the reverse electroosmotic flow was caused by a decrease in the soil zeta potential and was stronger than the normal electroosmotic flow. It affected the migration of lead ions and increased the removal rate of Pb by 10.1%.
Article
Thermodynamics
N. K. Ranjit, G. C. Shit, D. Tripathi
Summary: A mathematical model has been proposed to analyze the two-layered electrothermal flow of couple stress fluids via peristaltic propulsion, using a lubrication approach and Debye Huckel linearization to obtain the analytical solution. The study reveals that temperature decreases with increasing electrical double layer thickness, couple stress parameter, and Brinkman number, while it increases with Joule heating and thermal slip effects in the presence of thermal radiation.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Environmental Sciences
Riccardo Sprocati, Andrea Gallo, Henning Wienkenjohann, Massimo Rolle
Summary: This study investigates the effects of temperature on electrokinetic transport in porous media. The results show that an increase in temperature leads to a higher speed of amendments delivery and increased kinetics of degradation reactions. The simulations also reveal a feedback mechanism where higher aqueous conductivity results in increased Joule heating, leading to a faster temperature rise and higher electrolyte conductivity.
JOURNAL OF CONTAMINANT HYDROLOGY
(2023)
Article
Materials Science, Multidisciplinary
Zhi Lei, Shengzhi Duan, Xiaowen Wu, Chaochao Gao, Lianyi Wang, Xin Min, Zhaohui Huang, Minghao Fang, Ruiying Luo, Bingcheng Luo
Summary: This paper proposes a low-cost, environmentally friendly, controllable, and high-performance natural flake graphite-based electrothermal coating that can be used in various electro-thermal applications. The morphology and electrothermal properties of the coatings can be controlled based on pressure engineering and the use of various adhesives. The compressed coatings have a maximum temperature 22 times higher and a maximum conductivity approximately 3 times higher than the corresponding uncompressed coatings.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Electrical & Electronic
Fraser Daniel, Jacob Fontenot, Adarsh D. Radadia
Summary: A MEMS-inspired, chevron-based electrothermal actuator fabricated using material extrusion-based manufacturing of shape memory polymer composite was computationally and experimentally investigated in this study. By varying the resistivity of the composite, the operational voltage range was determined, allowing for quick actuation but slow recovery of the gripper design. Further research and development of application-specific electrothermal actuators made by extrusion-based manufacturing is justified based on the results.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Review
Biochemistry & Molecular Biology
Brian Gidudu, Evans M. N. Chirwa
Summary: Electrokinetic remediation is a promising technology for remediating polluted environments. It utilizes five fundamental processes - electrolysis, electroosmosis, electrophoresis, diffusion, and electromigration - to achieve decontamination. To ensure sustainability, effective processes with low environmental impact and cleaner alternative solutions need to be pursued.
Review
Biochemical Research Methods
Blanca H. Lapizco-Encinas
Summary: This review article discusses the evolution of insulator-based dielectrophoresis (iDEP) and insulator-based electrokinetic (iEK) systems, highlighting recent studies that suggest particle trapping in these systems is mainly due to a balance between electroosmotic and electrophoretic effects under DC and low-frequency AC potentials, rather than dielectrophoresis. The proposed renaming of the field from DC-iDEP to DC-iEK reflects the shift in understanding particle manipulation and separation mechanisms in these systems.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Thermodynamics
Michael O. Oni, Basant K. Jha, Abiodun O. Ajibade
Summary: This article conducts a comparative analysis on dual streaming potentials in electroosmotic mixed convection flow in a vertical microannulus with the effect of Joule heating. The electric potential, momentum, and energy equations governing flow formations and heat transfer are derived and solved. The study found that dual distinct streaming potentials are induced due to the Joule heating effect, leading to a quadratic function of streaming potential in the momentum equation. The results showed that these streaming potentials are real, distinct, and behave differently in flow formations and heat transfer.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Analytical
Herbert Harrison, Xinyu Lu, Saurin Patel, Cory Thomas, Andrew Todd, Mark Johnson, Yash Raval, Tzuen-Rong Tzeng, Yongxin Song, Junsheng Wang, Dongqing Li, Xiangchun Xuan
Article
Chemistry, Analytical
Lin Zhu, Saurin H. Patel, Mark Johnson, Akshay Kale, Yash Raval, Tzuen-Rong Tzeng, Xiangchun Xuan
Article
Biochemical Research Methods
Saurin Patel, Daniel Showers, Pallavi Vedantam, Tzuen-Rong Tzeng, Shizhi Qian, Xiangchun Xuan
Article
Biochemical Research Methods
John DuBose, Xinyu Lu, Saurin Patel, Shizhi Qian, Sang Woo Joo, Xiangchun Xuan
Article
Biochemical Research Methods
Xinyu Lu, Saurin Patel, Meng Zhang, Sang Woo Joo, Shizhi Qian, Amod Ogale, Xiangchun Xuan
Article
Biochemical Research Methods
Saurin Patel, Shizhi Qian, Xiangchun Xuan
Article
Biochemical Research Methods
Akshay Kale, Saurin Patel, Shizhi Qian, Guoqing Hu, Xiangchun Xuan
Article
Biochemical Research Methods
Akshay Kale, Saurin Patel, Guoqing Hu, Xiangchun Xuan
Article
Engineering, Electrical & Electronic
John DuBose, Junjie Zhu, Saurin Patel, Xinyu Lu, Nathaniel Tupper, John M. Stonaker, Xiangchun Xuan
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2014)