Article
Polymer Science
Mohammad Owais, Aleksei Shiverskii, Artem Sulimov, Dmitriy Ostrizhiniy, Yuri Popov, Biltu Mahato, Sergey G. Abaimov
Summary: In this study, high-performance three-dimensional PVA/aligned BN aerogel framework nanocomposites were fabricated using a facile strategy. The BN platelets were well dispersed and oriented in one direction in the PVA matrix, resulting in high thermal conductivity, good wettability, and high electrical resistivity of the composite materials.
Article
Polymer Science
Wenzong Xu, Chengwen Xu, Julan Liu, Ding Ding, Yi Zhang, Yaocheng Zhou
Summary: In this study, a flame-retardant and heat conductive filler SiO2@BN was successfully synthesized and applied in PVA composites. The thermal conductivity test showed that the addition of 2 wt.% SiO2@BN and 8 wt.% GP significantly improved the thermal conductivity of the composites, while also enhancing their flame retardancy.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Multidisciplinary Sciences
Zhenzhen Ou, Feng Gao, Lingjian Zhu, Huaijun Zhao, Zihan Xun
Summary: An electric-insulated heat-conducted material with specific properties has been studied and its practicality has been proven through experiments. By optimizing the filler fraction and working conditions, the best ratio has been determined for high voltage power encapsulation.
Article
Materials Science, Composites
Xianghui Ou, Shuangshuang Chen, Xuemin Lu, Qinghua Lu
Summary: The study presents a mechanochemical approach to prepare high thermal conductivity polyimide/boron nitride films induced by ball-milling, which is simple and efficient. The method allows for simultaneous peeling of BN platelets and surface covalent modification in one step, resulting in the formation of a heat-transfer network in the composite.
COMPOSITES COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Fanghong Yang, Xiaopeng Sun, Xing Zhang, Zhanhai Yao
Summary: The study shows that by reacting h-BN with sulfonyl chloride at room temperature, active groups can be generated, which can then be used to introduce PEG through a DielsAlder reaction. This improves the dispersibility and compatibility of h-BN in epoxy resin matrix, leading to enhanced thermal conductivity of the composites.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Manufacturing
Li Fan, Shuai Zhang, Guojie Zhao, Qiang Fu
Summary: A novel fibrillated hybrid skeleton (f-AO@BNNS skeleton) was prepared to enhance the thermal conductivity of polymer-based electronic packaging materials, achieving a high thermal conductivity composite through long-range phonon transferring highway with macroscopically interconnected fiber and microscopically oriented BNNSs.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Polymer Science
Shafi Ur Rehman, Sana Javaid, Muhammad Shahid, Nasir Mahmood Ahmad, Badar Rashid, Caroline R. Szczepanski, Asim Shahzad
Summary: This study focuses on the fabrication of polystyrene/boron nitride composites and melt extrusion to achieve good thermal stability, increased thermal conductivity, and enhanced mechanical properties. The developed polymeric composites are potentially applicable in the electronic industry, especially in electronic devices used for 5G, heat sink, and other aviation applications.
Article
Materials Science, Multidisciplinary
Taoqing Huang, Fubao Yang, Tian Wang, Jun Wang, Yongwei Li, Jiping Huang, Min Chen, Limin Wu
Summary: This study presents a novel design strategy to enhance the performance of thermal interface materials by improving the filler assembly structure. The flexible composite film with ladder-structured boron nitride nanosheet (BNNS) skeleton structure exhibits high thermal conductivity and electrical insulation.
APPLIED MATERIALS TODAY
(2022)
Article
Multidisciplinary Sciences
Zhifang Zhou, Yi Huang, Bin Wei, Yueyang Yang, Dehong Yu, Yunpeng Zheng, Dongsheng He, Wenyu Zhang, Mingchu Zou, Jin-Le Lan, Jiaqing He, Ce-Wen Nan, Yuan-Hua Lin
Summary: In this study, a fast preparation method of self-propagating high-temperature synthesis was used to realize in situ compositing of BiCuSeO and Cu2Se, optimizing the service stability of the thermoelectric materials. Additionally, the introduction of graphene in the composites improved the carrier mobility and reduced lattice thermal conductivity. The Cu2Se-BiCuSeO-graphene composites exhibited excellent thermoelectric properties.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Lin-Feng Yu, Jin-Yuan Xu, Chen Shen, E. Zhou, Jing Wu, Hong-Bin Zhang, Xiong Zheng, Hui-Min Wang, Guang-Zhao Qin
Summary: The design of novel devices with specific technical interests through modulating structural properties and bonding characteristics promotes the vigorous development of materials informatics. In this study, a group of novel borides with ultra-low thermal conductivity (kappa) was identified through first-principles calculations. The discovery of these borides fills the gaps in applications of thermal insulation and thermoelectric devices.
Article
Chemistry, Multidisciplinary
Jing Wang, Haihong Ma, Fengmei Ren, Zhengfa Zhou, Weibing Xu
Summary: Heat dissipation has become a key problem for highly integrated and miniaturized electronic components. In this study, a new strategy for preparing electronic potting materials with high thermal conductivity, good flowability and low coefficient of linear thermal expansion (CLTE) was presented by modifying the surface of spherical alumina and preparing a high alumina loading precursor of silicone potting adhesive.
Article
Materials Science, Composites
Xiaojie Chen, Wei Zhao, Yuancheng Zhang, Ge Shi, Yanjie He, Zhe Cui, Peng Fu, Xinchang Pang, Xiaomeng Zhang, Minying Liu
Summary: This study utilized high temperature resistant PA12T as matrix to fabricate PA12T/BN composites with excellent thermal management property, observing that the composite showed high in-plane thermal conductivity and low thermal expansion coefficient. Finite element analysis was used to reveal the thermal expansion behavior and mechanism of the composite with oriented filler structure.
COMPOSITES COMMUNICATIONS
(2022)
Article
Materials Science, Composites
Xiaojie Chen, Wei Zhao, Yuancheng Zhang, Ge Shi, Yanjie He, Zhe Cui, Peng Fu, Xinchang Pang, Xiaomeng Zhang, Minying Liu
Summary: In this study, PA12T/BN composites with oriented structure were fabricated by the injection molding method, and the results showed that the composite exhibited high thermal conductivity and low thermal expansion coefficient. The finite element analysis revealed the thermal expansion behavior and mechanism of the composite, providing important guidance for its design and application.
COMPOSITES COMMUNICATIONS
(2022)
Article
Materials Science, Composites
Chenyang Xu, Erchun Li, Jinjue Zeng, Yue Wang, Tao Wang, Cong Ge, Chen Zhang, Qi Wang, Tian Gao, Yagang Yao, Xiangfen Jiang, Ya Zhang, Qian Cheng, Xue-Bin Wang
Summary: Plasma activations can effectively functionalize BN and change its hydrophobicity to hydrophilicity, achieving interfacial bonding between plasma-treated BN fillers and polyvinyl alcohol molecules. The BN/polyvinyl alcohol composite material shows a high through-plane thermal conductivity of 2.4 W m(-1) K-1 for a filling fraction of 50 wt% BN treated by N-2 plasma, offering a promising approach for the high-efficiency and low-cost fabrication of BN-based composite materials.
COMPOSITES COMMUNICATIONS
(2021)
Article
Polymer Science
Li Liu, Ying Li, Xianglei Yu, Jinghong Du, Jiamin Zhang, Junpeng Li, Guoyou Gan
Summary: This study proposes a new hard-template approach for the construction of a three-dimensional hexagonal boron nitride foam (3D-BN). The 3D-BN is then filled with poly-dimethylsiloxane (PDMS) to create composites with high thermally conductivities and good insulating properties. The results show that the 3D-BN is the fundamental factor in improving the thermal conductivity of the composites.
Article
Nanoscience & Nanotechnology
Joel M. Katzen, Christos Tserkezis, Qiran Cai, Lu Hua Li, Jun Min Kim, Gaehang Lee, Gi-Ra Yi, William R. Hendren, Elton J. G. Santos, Robert M. Bowman, Fumin Huang
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Multidisciplinary
Joon Suk Oh, Gi-Ra Yi, David J. Pine
Article
Multidisciplinary Sciences
Jairo A. A. Diaz, Joon Suk Oh, Gi-Ra Yi, David J. Pine
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Chemistry, Physical
Young Moon Choi, Byoung Wan Lee, Myung Sun Jung, Hyun Soo Han, Suk Hyun Kim, Kaifeng Chen, Dong Ha Kim, Tony F. Heinz, Shanhui Fan, Jihye Lee, Gi-Ra Yi, Jung Kyu Kim, Jong Hyeok Park
ADVANCED ENERGY MATERIALS
(2020)
Review
Chemistry, Multidisciplinary
Ke Wang, Seong Hun Park, Jintao Zhu, Jung Kyu Kim, Lianbin Zhang, Gi-Ra Yi
Summary: 2D nanoscale patterns are widely studied for various applications, with gold nanoparticles demonstrating unnaturally high refractive index as optical meta-materials. Recent advances in colloidal chemistry allow for the fabrication of non-periodic colloidal nanostructures, potentially useful for optical meta-surfaces. The article provides a brief overview of optical meta-materials, reviews progress in high-index and negative-index meta-materials, and discusses experimental progress in high-precision self-assembly for meta-surface fabrication.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Nguyen Xuan Viet Lan, Jeongbin Moon, Tae Hui Kang, Ke Wang, Hong-Gyu Park, Gi-Ra Yi
Summary: Composite colloidal crystal films were prepared to demonstrate strong reflection colors while maintaining high optical transparency by adjusting the core-to-shell volume ratio for refractive index matching. Bicolored reflective films were successfully prepared by stacking two different colloidal crystal films, and patterned composite photonic crystals were fabricated through selective photopolymerization for multicolored films, showing potential applications in reflective displays, encryption, and optical identification.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Eun Ji Kim, Jaeman J. Shin, Taeyang Do, Gue Seon Lee, Juhae Park, Vikarm Thapar, Jinwoong Choi, Joona Bang, Gi-Ra Yi, Su-Mi Hur, Jeung Gon Kim, Bumjoon J. Kim
Summary: The self-assembly behavior of block copolymers under confinement was studied, with a focus on the morphological transitions observed. It was found that morphological transitions occur at higher molecular weights, with onion-like particles transitioning to striped ellipsoids. The formation process of ellipsoidal particles was also compared with that of onion-like particles, showing differences in the development of lamella domains. Additionally, the shape anisotropies of the ellipsoidal particles were analyzed as a function of particle size, highlighting their potential for various applications.
Article
Chemistry, Multidisciplinary
You-Jin Kim, Jae-Hyun Kim, In-Seong Jo, David J. Pine, Stefano Sacanna, Gi-Ra Yi
Summary: Colloidal clusters are formed by assembling PS particles onto liquid cores and can be purified through density gradient centrifugation. Hybrid colloidal clusters are obtained when using silica-PS core-shell particles, breaking symmetry in clusters.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Jae Seon Baik, Sang A. Kim, Dae-Woong Jung, Weon-Sik Chae, Changhyun Pang, Suk Ho Bhang, Laurent Corte, Gi-Ra Yi
Summary: The adsorption of polymers on the surface of mesoporous silica nanoparticles allows for versatile adhesion between hydrogels or biological tissues. However, when the number of nanoparticles deposited exceeds a critical threshold, thick multilayers form at the interface and decrease the adhesion strength. To overcome this limitation, spherical aggregates were prepared by spray drying, resulting in stronger cohesion between nanoparticles. The adhesion energy with these supraballs was significantly enhanced compared to nanoparticles, and corrugated interfaces stabilized by supraballs contributed to the largest adhesion enhancement.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Seong Soo Yoo, Jeong-Won Ho, Dong-In Shin, Minjun Kim, Sunghwan Hong, Jun Hyuk Lee, Hyeon Jun Jeong, Mun Seok Jeong, Gi-Ra Yi, S. Joon Kwon, Pil J. Yoo
Summary: This study presents the development of an ultrasensitive SERS platform utilizing a two-dimensional assembly of Au NPs conformally coated with a few-atom-thick MXene layer. The MXene layer enables the Fermi level of the substrate to be located between the HOMO and LUMO levels of analytes, thus efficiently facilitating the CT effect.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Dong-In Shin, Seong Soo Yoo, Seong Hun Park, Gaehang Lee, Wan Ki Bae, Seok Joon Kwon, Pil Jin Yoo, Gi-Ra Yi
Summary: Nanophotonics relies on precise control of refractive index, and this study demonstrates a versatile way of tuning refractive index using heteroligand gold nanoparticles that form 2D superstructures at the oil-water interface. These 2D superstructures exhibit the highest-ever refractive index in visible and NIR light, and the plasmonic effects are successfully explained by a percolation model.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
You-Jin Kim, Jeong-Bin Moon, Hyerim Hwang, Youn Soo Kim, Gi-Ra Yi
Summary: Significant progress has been made in the synthesis and assembly of patchy colloidal clusters in recent years. These clusters, through a DNA-mediated interlocking process, can form directional bonding with specific rotation angles, and have potential applications in photonic crystals, metamaterials, topological photonic insulators, and separation membranes.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Jeong-Bin Moon, Seung-Jea Lee, Seung-Hyun Kim, Yechan Chang, Hyerim Hwang, Gi-Ra Yi
Summary: Monodisperse carbon-embedded rutile TiO2 nanospheres were synthesized through sol-gel reaction and thermal annealing process. The nanospheres showed unique structural colors and high refractive index, which make them useful in fields such as encryption inks and automotive paints.
CHEMISTRY OF MATERIALS
(2022)
Article
Polymer Science
Miaomiao Li, Zhan-Wei Li, Quanqian Lyu, Bolun Peng, Rui Zhong, Meiru Zhao, Bijin Xiong, Gi -Ra Yi, Lianbin Zhang, Jintao Zhu
Summary: This study presents a general strategy for the one-step construction of colloidal photonic composites (CPCs) with tunable structures. By kinetically controlling the supramolecular crosslinking between colloidal particles (CPs) and supramolecular oligomers, CPCs with structures ranging from short-range to long-range order were achieved. The resulting CPCs exhibit structural colors, versatile mechanical strengths, and appealing mechanochromic and self-healing capabilities.
Article
Chemistry, Physical
Kazem V. Edmond, Tess W. P. Jacobson, Joon Suk Oh, Gi-Ra Yi, Andrew D. Hollingsworth, Stefano Sacanna, David J. Pine
Summary: This method involves the large-scale fabrication of bowl-shaped colloidal particles using an emulsion templating technique, where compliant seed particles are deformed by surface tension on oil droplets as templating surfaces. By adjusting droplet size and seed particle diameter, the final particle shape can be precisely controlled, ranging from shallow lenses to deep bowls. The resulting uniformly-shaped colloidal particles allow for depletion-mediated assembly of flexible colloidal chains and clusters.
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)
