Article
Chemistry, Physical
Yu Cai, Huitao Yu, Can Chen, Yiyu Feng, Mengmeng Qin, Wei Feng
Summary: Vertically aligned carbon nanotube (VACNT) arrays have superior vertical thermal conductivity but suffer from weak interaction between adjacent carbon nanotubes (CNT) during polymer infiltration. This study introduces a novel three-dimensional CNT (3DCNT) network structure, where VACNT is crosslinked by secondary CNT, to provide in-plane phonon paths and maintain structural stability. Results show that the 3DCNT20/P composite has significantly higher vertical and horizontal thermal conductivity compared to the IVACNT/P composite.
Article
Chemistry, Physical
Ruixiang Bai, Yangbing Wei, Jiyuan Xu, Xiaobo Li, Menglin Li, Ziwen Zou, Xinyan Huang, Chengyu Liu, Yiwei Sun, Menglong Hao
Summary: A new thermal interface material (TIM) is developed by encapsulating vertically aligned carbon nanotubes arrays (VACNTs) with copper microfoils, providing a solution to VACNTs' problem in device integration and contact resistance. The new TIM demonstrates excellent thermal performance and reliability in light emitting diode (LED) cooling experiment.
Article
Materials Science, Multidisciplinary
W. Yu, X. Zhao, P. Jiang, C. Liu, R. Yang
Summary: The alignment of super-aligned CNT films plays a crucial role in tuning their thermal transport properties, with different alignment configurations affecting thermal conductivity and anisotropic ratio. This study provides an efficient method for designing thermally anisotropic films for thermal management by manipulating alignment.
MATERIALS TODAY PHYSICS
(2021)
Article
Engineering, Multidisciplinary
Yuan Fang, Long-yuan Li, Jean-Baptiste Mawule Dassekpo, Sung-Hwan Jang
Summary: An analytical prediction model for the heat transfer analysis of two-phase composite materials is developed, taking into account various factors influencing the effective properties of composite materials. The validation of the model using experimental data demonstrates the accuracy and reliability of the model.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Thermodynamics
Huiying Zhang, Suying Yan, Hong Gao, Xue Yuan, Tingzhen Ming, Mohammad Hossein Ahmadi, Xiaoyan Zhao
Summary: This study analyzed the effects of the dispersant concentration, mass fraction, temperature, and standing time on the thermal conductivity of CNT-nanofluid experimentally, and established a BP neural network prediction model. The model was optimized using genetic algorithms, and the experimental range was expanded. Results showed that temperature had a significant impact on thermal conductivity, and the optimal ratio of CNT particles to dispersant concentration was found to be 1:2.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Chemistry, Multidisciplinary
Fei Zhang, Yuxuan Sun, Lei Guo, Yinhang Zhang, Dan Liu, Wei Feng, Xi Shen, Qingbin Zheng
Summary: This study reports a method to produce graphitic structure welded carbon nanotube networks by interfacial welding, which significantly reduces the thermal resistance between the carbon nanotubes and improves the thermal conductivity of the nanocomposite. The nanocomposite with a 4.75wt% loading of graphitic structure welding exhibits a 410% enhancement in thermal conductivity, reaching 5.58 W m-1 K-1. Molecular dynamics simulations reveal the effect of graphitic structure welding on heat transfer behavior, providing insights for optimizing thermal transport performance in next-generation microelectronic devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Ying Wang, Miao Qi, Guangtao Chang, Ruoxin Li
Summary: A novel approach to prepare highly conductive thermal polyurethane composite coatings with dopamine-modified conductive fillers was reported in this study. Graphene oxide and carbon nanotube were found to form a bridge-like structure to build more heat conduction channels, leading to better thermal conductivity.
Article
Nanoscience & Nanotechnology
Jake Dudley Mehew, Marina Y. Timmermans, David Saleta Reig, Stefanie Sergeant, Marianna Sledzinska, Emigdio Chavez-Angel, Emily Gallagher, Clivia M. Sotomayor Torres, Cedric Huyghebaert, Klaas-Jan Tielrooij
Summary: Nanomaterials, particularly carbon nanotubes (CNTs), are promising candidates for applications requiring high thermal conductivity. In this study, the thermal conductivity of free-standing double-walled CNT films was measured using all-optical Raman thermometry, showing significantly enhanced thermal conduction compared to single-walled CNT films. This research contributes to a better understanding of these nanomaterials and their suitability for extreme ultraviolet (EUV) lithography.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Green & Sustainable Science & Technology
Sossina Gezahegn, Christian Garcia, Runshen Lai, Xiaxing Zhou, Jimi Tjong, Sean C. Thomas, Fang Huang, Shaffiq Jaffer, Yang Weimin, Mohini Sain
Summary: The breakthrough in electrical conductivity of bamboo biographite-based material offers new possibilities in material science, showing potential for various applications. Controlled high-temperature thermal carbonization of biomass resulted in nano-layered biographitic structures with exceptional conductivity capabilities.
Article
Chemistry, Physical
Dong-Kwan Lee, Jongchan Yoo, Hyunwoo Kim, Byung-Ho Kang, Sung-Hoon Park
Summary: Studies have shown that nanofillers such as carbon nanotubes play a significant role in improving the thermal conductivity of polymers, with multi-walled carbon nanotube/polymer composites exhibiting excellent electrical and thermal properties, making them suitable for use as flexible and lightweight heat transfer materials.
Article
Engineering, Environmental
Beomsu Shin, Subhadip Mondal, Minkyu Lee, Suhyun Kim, Yang-Il Huh, Changwoon Nah
Summary: This study explores the effects of different lengths of CNTs on the performance of TPU composites, with long CNTs offering higher EMI shielding efficiency and short CNTs enhancing thermal conductivity. Long CNTs help form unique interconnected conductive networks within the TPU matrix, improving the overall performance of the composites.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Weiqing Zhou, Jie Jiang, Huacheng Wu, Die Hu, Peng Li, Xuesong Yang, Xilai Jia
Summary: A composite composed of aluminum potassium sulfate, iron sulfate salt, and carbon nanotubes was proposed for large-scale distributed thermal storage. The use of carbon nanotubes enhanced the thermal conductivity and structural stability of the composite, providing rapid thermal storage with no capacity fading after multiple cycles.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Thermodynamics
Jiayou Du, Qiaoming Su, Long Li, Ruijin Wang, Zefei Zhu
Summary: A new hybrid method of MPCD-MD is proposed to evaluate the morphology of aggregation and thermal conductivity of Cu-H2O nanofluid, reducing the computational workload. The numerical simulations show that the nanofluid has greater thermal conductivity at lower fractal dimension at fixed volume fraction, and there is a linear relationship between fractal dimension and thermal conductivity.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Engineering, Chemical
Ruijin Wang, Chen Feng, Zhen Zhang, Chun Shao, Jiayou Du
Summary: A hybrid method of MPCD-MD is used to evaluate the aggregation morphology and TC of Cu-H2O nanofluid. Various simulations with different quantities of charges on nanoparticles are conducted, obtaining three kinds of morphology and the effects on TC. The study provides guidance for preparing nanofluids with higher TC.
Article
Nanoscience & Nanotechnology
Andreas Nylander, Josef Hansson, Torbjorn Nilsson, Lilei Ye, Yifeng Fu, Johan Liu
Summary: This study investigates the reliability of CNT array TIMs through accelerated aging, finding that the height of the CNT array and substrate configuration impact thermal resistance degradation.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Multidisciplinary
Zhong-Heng Fu, Xiang Chen, Qiang Zhang
Summary: This article provides a comprehensive summary of lithium transport mechanisms in solid-state battery materials, emphasizing the role of atomistic simulations in bridging experimental and theoretical models. Theoretical and experimental characterization methods for lithium transports are discussed, along with classified design strategies for fast lithium transports. The article also offers a perspective on the achievements and challenges in probing lithium transports.
WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Cheng-Bin Jin, Nan Yao, Ye Xiao, Jin Xie, Zeheng Li, Xiang Chen, Bo-Quan Li, Xue-Qiang Zhang, Jia-Qi Huang, Qiang Zhang
Summary: Lithium (Li)-metal batteries suffer severe capacity deterioration at extreme temperatures due to increased kinetic barrier of interfacial processes. This study quantitatively probes the interfacial kinetics in three different electrolytes and reveals that desolvation is the limiting step dominating the cell impedance and capacity at low temperature. The use of a 1,3-dioxolane-based electrolyte with tamed solvent-solute interaction facilitates fast desolvation and enables practical Li|LiNi0.5Co0.2Mn0.3O2 cells at -40 degrees C to retain 66% of room-temperature capacity and withstand fast charging rates. The barrier of desolvation dictated by solvent-solute interaction environments is quantitatively uncovered, and regulating this interaction emerges as a promising solution to low-temperature batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yu-Xing Yao, Xiang Chen, Nan Yao, Jin-Hui Gao, Gang Xu, Jun-Fan Ding, Chun-Liang Song, Wen-Long Cai, Chong Yan, Qiang Zhang
Summary: The study reveals the influence of charge transfer kinetics on the fast rechargeability of Li-ion batteries. By addressing the charge transfer limitations at the electrode-electrolyte interface through electrolyte engineering, stable fast charging of high-energy Li-ion batteries is achieved.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Multidisciplinary
Yu-Kun Liu, Chen-Zi Zhao, Juan Du, Xue-Qiang Zhang, Ai-Bing Chen, Qiang Zhang
Summary: With the rapid development of modern society, there is an increasing demand for advanced energy storage solutions to meet the growing energy supply and generation needs. Among the various possibilities, secondary batteries, especially lithium-ion batteries, have gained significant attention. The electrolyte is a crucial component of lithium-ion batteries and plays a vital role in their electrochemical performance. This review examines the advantages and challenges associated with liquid electrolytes in lithium-ion batteries, provides an overview of the progress in solvents, lithium salts, and additives, discusses future trends and requirements of lithium-ion battery electrolytes, and highlights emerging opportunities in advanced electrolyte development.
Article
Chemistry, Physical
Yu Tian, Cheng Lin, Xiang Chen, Xiao Yu, Rui Xiong, Qiang Zhang
Summary: By releasing the elastic and reversible lithium plating interval, superior charging performance and reduced charging duration at low temperatures can be achieved. The plating-weak fast charging (PWFC) strategy effectively avoids rapid degradation by regulating high reversibility and fine-tuning the charging current that triggers the lithium plating. PWFC guarantees the life of electric vehicles beyond the warranty period and further shortens the charging time in winter.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yu-Xing Yao, Jing Wan, Ning-Yan Liang, Chong Yan, Rui Wen, Qiang Zhang
Summary: The growth mode of solid electrolyte interphase (SEI) on carbonaceous anodes in Li-ion batteries is studied using classical nucleation theories and in situ atomic force microscopy imaging. The formation of inorganic SEI follows a mixed 2D/3D growth model that is highly dependent on overpotential, while organic SEI strictly follows a 2D instantaneous nucleation and growth model regardless of overpotential. Insights obtained from these studies have the potential to tailor desired interphases at the nanoscale for future electrochemical devices.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Applied
Shuhao Wang, Xinyan Liu, Xiang Chen, Kamran Dastafkan, Zhong-Heng Fu, Xin Tan, Qiang Zhang, Chuan Zhao
Summary: The electronic structure of transition metal-doped NiFe2O4(0 0 1) surface was studied to investigate its effect on the intrinsic activity of oxygen evolution reaction (OER). The variation of Fe oxidation states was found to originate from the super-exchange effect and the t2g-electron configuration of 3d metal dopants. This trend governs the generation of highly-active Fe3+ sites and the adsorption strength of OER intermediates, providing insights into electronic structure tailoring strategies for improving the intrinsic activity of OER electrocatalysts.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Peixun Xiong, Yingbo Kang, Nan Yao, Xiang Chen, Haiyan Mao, Woo-Sung Jang, David M. Halat, Zhong-Heng Fu, Min-Hyoung Jung, Hu Young Jeong, Young-Min Kim, Jeffrey A. Reimer, Qiang Zhang, Ho Seok Park
Summary: A stable Zn5(CO3)2(OH)6 solid electrolyte interphase (SEI) was formed on the surface of Zn anodes using hybrid electrolytes, resulting in dendrite-free Zn plating/stripping. The Zn5(OH)6(CO3)2-contained SEI exhibited high ionic conductivity and fast Zn2+ migration, enabling the development of stable Zn-ion hybrid capacitors with high performance at various temperatures. The hybrid capacitors showed excellent capacity retention and Coulombic efficiency over a large number of cycles.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Rui Xiong, Yue Sun, Chenxu Wang, Jinpeng Tian, Xiang Chen, Hailong Li, Qiang Zhang
Summary: In this study, a novel method combining four algorithms was proposed to select the most important features for estimating the state of health (SOH) of lithium-ion batteries (LiBs). The selected features improved the accuracy of SOH estimation by 63.5% and 71.1% for NCA and LFP batteries, respectively, compared to using all features. Additionally, the method allowed the use of data obtained in partial voltage ranges, resulting in minimum root mean square errors of 1.2% and 1.6% for NCA and LFP batteries, respectively, demonstrating its capability for onboard applications.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Kaiping Zhu, Luhe Li, Pan Xue, Jun Pu, Liyun Wu, Gengde Guo, Ran Wang, Ye Zhang, Huisheng Peng, Guo Hong, Qiang Zhang, Yagang Yao
Summary: In this study, a highly thermally conductive separator was constructed by cross-weaving super-aligned carbon nanotubes on super-aligned boron nitride@carbon nanotubes to create a composite film. The separator design strategy not only prevented the development of extremely high temperatures but also enhanced the electrochemical performance of lithium-sulfur batteries. The composite separator offered a large number of adsorption sites and accelerated the catalytic conversion, while also regulating local current density and ion flux to alleviate the growth of lithium dendrites.
Article
Engineering, Chemical
Feng-Ni Jiang, Shi-Jie Yang, Zi-Xian Chen, He Liu, Hong Yuan, Lei Liu, Jia-Qi Huang, Xin-Bing Cheng, Qiang Zhang
Summary: Comprehensive analyses of thermal runaway mechanisms are crucial for the safe operation of lithium-sulfur (Li-S) batteries. The thermal runaway of 1.0 Ah cycled Li-S pouch cells is attributed to the reactions between dissolved higher-order polysulfides and Li metal. Adding electrolyte significantly affects the thermal safety, with the 16-cycle pouch cell experiencing severe thermal runaway while the 45-cycle pouch cell remains stable. The presence of high-order polysulfides (Li2Sx > 6) and exothermic reactions with cycled Li contribute to the thermal runaway of Li-S pouch cells.
Article
Chemistry, Physical
Li-Yang Yao, Li-Peng Hou, Yun-Wei Song, Meng Zhao, Jin Xie, Bo-Quan Li, Qiang Zhang, Jia-Qi Huang, Xue-Qiang Zhang
Summary: By implementing organic polysulfide redox circulations, the recycling of inactive Li is achieved, thereby enhancing the lifespan of practical Li-S batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Zhe Wang, Li-Peng Hou, Zheng Li, Jia-Lin Liang, Ming-Yue Zhou, Chen-Zi Zhao, Xiaoyuan Zeng, Bo-Quan Li, Aibing Chen, Xue-Qiang Zhang, Peng Dong, Yingjie Zhang, Jia-Qi Huang, Qiang Zhang
Summary: The stability of lithium metal anodes crucially determines the lifespan of high-energy-density lithium metal batteries. Traditional additive lithium nitrate (LiNO3) forms LiNxOy-containing solid electrolyte interphase (SEI) to stabilize lithium metal anodes, but its poor solubility in ester electrolytes hinders its application. In this study, organic nitrate isosorbide nitrate (ISDN) is proposed as a replacement for LiNO3. ISDN exhibits high solubility in ester electrolytes due to the introduction of organic segments, enabling the formation of LiNxOy-rich SEI and promoting uniform lithium deposition. The lifespan of lithium metal batteries is significantly extended from 80 to 155 cycles with the use of ISDN under demanding conditions. Furthermore, a lithium metal pouch cell with an energy density of 439 Wh kg(-1) delivers 50 cycles. This work opens up a new pathway for developing practical additives for lithium metal batteries through molecular modifications.
Article
Chemistry, Physical
Wen-Ze Huang, Ze-Yu Liu, Pan Xu, Wei-Jin Kong, Xue-Yan Huang, Peng Shi, Peng Wu, Chen-Zi Zhao, Hong Yuan, Jia-Qi Huang, Qiang Zhang
Summary: Considering energy density and safety, anode-free all-solid-state lithium batteries are strong candidates for surpassing the capabilities of routine lithium-ion batteries. However, achieving uniform lithium metal plating under high areal capacity is a major challenge for practical applications. In this study, a high-performance anode-free all-solid-state lithium battery with a carbon-reinforced ionic-electronic composite was developed, which exhibited a long cycle life and stable lithium metal plating under high areal capacity, surpassing the performance of traditional copper current collectors. The application of high-areal-capacity pouch cells provided an efficient and effective strategy for practical anode-free all-solid-state lithium batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Liang Shen, Yun-Wei Song, Juan Wang, Chang-Xin Zhao, Chen-Xi Bi, Shu-Yu Sun, Xue-Qiang Zhang, Bo-Quan Li, Qiang Zhang
Summary: The Fe-Co-based dual-atom catalyst (DAC) is adopted to enhance the performance of Li-S batteries by accelerating the sulfur redox kinetics and improving the discharge capacity and rate performances. The unique structure of the dual-atom site allows synergistic effects and promotes the interactions with lithium polysulfides, resulting in high discharge capacity and excellent rate performances.
Article
Engineering, Chemical
Xu Yang, Jieshi Xiao, Jian Huang, Kaixiang Peng
Summary: This study introduces an online convolutional adversarial autoencoder (AAE) model to learn representative industrial process information. By extracting features that reflect diverse information and follow a Gaussian distribution, the model improves the accuracy of fault detection and removes redundant information through a feature selection strategy.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)
Article
Engineering, Chemical
Shao-Yang Wu, Meng-Tsun Lai, Chung-Hui Hsu, Kevin C. W. Wu, Yesong Gu
Summary: This study investigated the effectiveness of using Fe-based MOF or MIL-100(Fe) in conjunction with a PEDOT-modified Pt electrode for detecting the synthetic azo dye tartrazine. By modifying the electrode with two different methods, favorable lower reductive potentials, competitive sensitivities, and good repeatability and stability were achieved in all MIL-100(Fe)/PEDOT/Pt electrodes.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)
