Review
Chemistry, Multidisciplinary
Jinhong Du, Bo Tong, Shuangdeng Yuan, Nian Dai, Rui Liu, Dingdong Zhang, Hui-Ming Cheng, Wencai Ren
Summary: This article reviews the recent advances and significant development of CVD-grown graphene towards flexible optoelectronics. The challenges of improving optoelectronic properties, tuning work functions, and controlling interfaces are discussed, and the importance of fabricating large-area devices on flexible substrates is emphasized.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Multidisciplinary Sciences
Sergey G. Menabde, In-Ho Lee, Sanghyub Lee, Heonhak Ha, Jacob T. Heiden, Daehan Yoo, Teun-Teun Kim, Tony Low, Young Hee Lee, Sang-Hyun Oh, Min Seok Jang
Summary: The acoustic plasmon mode in a graphene-dielectric-metal structure shows strong light-matter interaction with relatively small propagation loss, allowing for real-space mapping under ambient conditions.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Xiang Xu, Tingting Zhong, Nian Zuo, Zexin Li, Dongyan Li, Lejing Pi, Ping Chen, Menghao Wu, Tianyou Zhai, Xing Zhou
Summary: In this study, CuCrS2 nanoflakes were successfully synthesized by salt-assisted chemical vapor deposition, demonstrating switchable ferroelectric polarization even at a thickness of 6 nm. The high T-C of around 700 K can be attributed to the robust tetrahedral bonding configurations of Cu cations, with further clarification provided by a theoretically predicted high order-disorder transition barrier and structure evolution from 600 to 800 K. Additionally, interlocked out-of-plane and in-plane ferroelectric domains were observed, leading to the demonstration of two devices based on different polarizations.
Article
Chemistry, Physical
Meng Zhang, Bo Zou, Xu Zhang, Yan Zhou, Huarui Sun
Summary: The study reveals that the thermal conductivity of polycrystalline SnS2 film is lower, approximately half that of single-crystalline SnS2 film, mainly due to phonon scattering at grain boundaries. Two simulation approaches suggest that thermal transport across crystal grains leads to the reduction of thermal conductivity, therefore, the thermal conductivity of polycrystalline SnS2 film can be substantially reduced by tuning the grain size.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Binbin Ding, Lianbi Li, Lei Li, Tianming Wang, Changjun Zhu, Song Feng, Zebin Li, Jun Wang, Guoqing Zhang, Yuan Zang, Jichao Hu, Caijuan Xia
Summary: In this study, large-area monolayer MoS2 films were successfully grown on graphene using chemical vapor deposition (CVD) technique with the assistance of oxygen (O2). The introduction of O2 improved the growth environment of MoS2 domains and increased the grain size of MoS2. Spectroscopic results showed the deposition of a monolayer of MoS2 with high crystal quality on graphene. Effective charge transfer was observed in MoS2/graphene heterojunctions. The photodetector prepared by MoS2/graphene film exhibited good response to light. These findings indicate the great potential of MoS2/graphene heterojunctions for optoelectronic applications.
Article
Chemistry, Physical
Daniela Ion-Ebrasu, Radu Dorin Andrei, Stanica Enache, Simona Caprarescu, Constantin Catalin Negrila, Catalin Jianu, Adrian Enache, Iulian Boerasu, Elena Carcadea, Mihai Varlam, Bogdan Stefan Vasile, Jianwei Ren
Summary: In this study, nitrogen-doped and platinum functionalized three-dimensional graphene foam (3D-GrFoam) were prepared using hydrothermal treatment with different reducing agents. The nitrogen-doped sample showed higher electrochemical activity with 1.8 at % of N, while the platinum-functionalized sample exhibited a lower Tafel value, suggesting their potential for different electrochemical reaction mechanisms. Raman, infrared spectroscopy, and SEM analyses were conducted to understand the structure of the samples.
Article
Engineering, Multidisciplinary
Garam Bae, Jeonghui Kim, Yeoheung Yoon, Da Som Song, Minji Kim, Choelho Jeon, Wooseok Song, Sung Myung, Jongsun Lim, Sun Sook Lee, Ha-Kyun Jung, Chong-Yun Park, Ki-Seok An
Summary: This study addresses the challenge of large-scale synthesis of TMC materials by synthesizing Mo2C encapsulated in a multilayer graphene coral-like nanostructure, which effectively improves the oxidation stability of Mo2C. The research demonstrates the potential of graphene/Mo2C for applications in nanostructured electrodes and heaters due to its exceptional electrical conductivity, enhanced chemical durability, mechanical flexibility, and outstanding performance in deformable heaters.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Ceramics
S. Swathi, E. Sunil Babu, R. Yuvakkumar, G. Ravi, Arunachalam Chinnathambi, Sulaiman Ali Alharbi, Dhayalan Velauthapillai
Summary: Photoelectrochemical water splitting using semiconductor materials to generate hydrogen and oxygen is an important method. Synthesized materials can enhance bandgap by controlled size and morphology, improving PEC activity and photoconversion efficiency. Recently, ZnO nanostructures have attracted attention for their multifunctional properties and are considered outstanding for fabrication applications.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Luca Lavagna, Mattia Bartoli, Simone Musso, Daniel Suarez-Riera, Alberto Tagliaferro, Matteo Pavese
Summary: In this study, carbon nanotubes (CNTs) were synthesized on an oil-well cement substrate using chemical vapor deposition (CVD) method. The effect of the synthesis process on cement was thoroughly investigated, and FE-SEM, RAMAN, and X-Ray spectroscopy were used to analyze the modifications in the cementitious matrix and the unique morphological features of CNTs.
Article
Nanoscience & Nanotechnology
Heguang Liu, Decai Ouyang, Jing Wang, Chao Lei, Wenwu Shi, Todd Gilliam, Jianxi Liu, Yuan Li, Nitin Chopra
Summary: This study investigates the CVD growth of graphene-encapsulated Au nanoparticles (Au PG) through experimental parameter studies and theoretical modeling to understand the growth mechanism and control the morphology evolution. Optimized conditions for the best morphology evolution are identified, providing new insights for the design and application of such core-shell heterostructures in plasmonic applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Sara Fiori, Daniele Perilli, Mirco Panighel, Cinzia Cepek, Aldo Ugolotti, Alessandro Sala, Hongsheng Liu, Giovanni Comelli, Cristiana Di Valentin, Cristina Africh
Summary: High-quality nitrogen-doped graphene on nickel was prepared by utilizing both the catalytic properties of nickel and the solubility of nitrogen atoms. The experimental results demonstrated the growth of a flat, wide, continuous nitrogen-doped graphene layer, showing potential for various applications.
Review
Chemistry, Physical
Xing Xin, Jiamei Chen, Laipeng Ma, Teng Ma, Wei Xin, Haiyang Xu, Wencai Ren, Yichun Liu
Summary: Graphene, a single atomic layer of carbon, has great potential for various applications. Large-area graphene films grown by chemical vapor deposition are highly desirable but their properties are affected by grain boundaries. In the past decade, progress has been made in controlling grain sizes through modifying the growth processes. Strategies include controlling nucleation density, growth rate, and grain orientation.
Article
Chemistry, Physical
Xiucai Sun, Xiaoting Liu, Zhongti Sun, Xintong Zhang, Yuzhu Wu, Yeshu Zhu, Yuqing Song, Kaicheng Jia, Jincan Zhang, Luzhao Sun, Wan-Jian Yin, Zhongfan Liu
Summary: This study reveals the importance of vapor catalysis in superclean graphene growth through density functional theory calculations, an ideal gas model, and a designed experiment. The study finds that the vapor mainly consists of Cui clusters, which have a significant impact on graphene growth. DFT calculations show that Cu clusters exhibit strong capabilities for adsorption, dehydrogenation, and decomposition, providing a sufficient supply of active carbon atoms for rapid graphene growth. Experimental validation confirms that increasing the amount of Cu vapor improves the growth rate and surface cleanliness of graphene.
Article
Chemistry, Multidisciplinary
Jing Li, Shuang Wang, Qi Jiang, Haoji Qian, Shike Hu, He Kang, Chen Chen, Xiaoyi Zhan, Aobo Yu, Sunwen Zhao, Yanhui Zhang, Zhiying Chen, Yanping Sui, Shan Qiao, Guanghui Yu, Songang Peng, Zhi Jin, Xinyu Liu
Summary: This study successfully achieved the epitaxial growth of single crystal MoS2 (SC-MoS2) monolayer on an Au (111) film, allowing for the unidirectional alignment of MoS2 domains with seamless stitching into a single crystal monolayer without GBs formation. This breakthrough in growth mode provides a new direction for the practical applications of TMDCs in microelectronics.
Article
Multidisciplinary Sciences
S. Karamat, U. Khalique, Arslan Usman, Asad Javaid, Ahmet Oral
Summary: Graphene was directly grown on TiO2 substrates using chemical vapor deposition. Characterization techniques including Raman spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and atomic force microscopy were employed to analyze the graphene-TiO2 samples. The results demonstrated the wide coverage of graphene on TiO2, but achieving uniform thickness throughout the substrate remains challenging.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Psychiatry
Hoyoung An, Hee Won Yang, Dae Jong Oh, Eunji Lim, Jin Shin, Dong Gyu Moon, Seung Wan Suh, Seonjeong Byun, Tae Hui Kim, Kyung Phil Kwak, Bong Jo Kim, Shin Gyeom Kim, Jeong Lan Kim, Seok Woo Moon, Joon Hyuk Park, Seung-Ho Ryu, Dong Woo Lee, Seok Bum Lee, Jung Jae Lee, Jin Hyeong Jhoo, Jong Bin Bae, Ji Won Han, Ki Woong Kim
Summary: Both depressive and bipolar disorders increase the risks of mortality and dementia, with the effects on mortality mainly mediated through dementia. The direct effects of each mood disorder on mortality were not significant. Measures to prevent dementia may effectively reduce mortality in individuals with a history of mood disorders, and are more feasible than attempting to control other causes of death.
AUSTRALIAN AND NEW ZEALAND JOURNAL OF PSYCHIATRY
(2022)
Article
Neurosciences
Jinshil Hyun, Charles B. Hall, Mindy J. Katz, Carol A. Derby, Darren M. Lipnicki, John D. Crawford, Antonio Guaita, Roberta Vaccaro, Annalisa Davin, Ki Woong Kim, Ji Won Han, Jong Bin Bae, Susanne Roehr, Steffi Riedel-Heller, Mary Ganguli, Erin Jacobsen, Tiffany F. Hughes, Henry Brodaty, Nicole A. Kochan, Julian Trollor, Antonio Lobo, Javier Santabarbara, Raul Lopez-Anton, Perminder S. Sachdev, Richard B. Lipton
Summary: This study found that early life education and adulthood occupational complexity are independently predictive of dementia, with some of the education effect mediated by occupational complexity. Dementia prevention efforts could be made at different stages of the life course.
JOURNAL OF ALZHEIMERS DISEASE
(2022)
Article
Psychology, Clinical
Dae Jong Oh, Hee Won Yang, Seung Wan Suh, Seonjeong Byun, Tae Hui Kim, Kyung Phil Kwak, Bong Jo Kim, Shin Gyeom Kim, Jeong Lan Kim, Seok Woo Moon, Joon Hyuk Park, Seung-Ho Ryu, Dong Woo Lee, Seok Bum Lee, Jung Jae Lee, Jin Hyeong Jhoo, Jong Bin Bae, Ji Won Han, Ki Woong Kim
Summary: The study found that the COVID-19 pandemic has a significant impact on the risk of depression in older adults. The pandemic is associated with increased depressive symptoms in older adults, and even euthymic older adults without a history of depression have a doubled risk of developing depressive disorder during the pandemic. Less social activities are not associated with the risk of depressive disorder during the pandemic, but less family gatherings are associated with an increased risk of depressive disorder.
PSYCHOLOGICAL MEDICINE
(2023)
Review
Substance Abuse
Louise Mewton, Rachel Visontay, Nicholas Hoy, Darren M. Lipnicki, Matthew Sunderland, Richard B. Lipton, Maelenn Guerchet, Karen Ritchie, Jenna Najar, Nikolaos Scarmeas, Ki-Woong Kim, Steffi Riedel Heller, Martin van Boxtel, Erin Jacobsen, Henry Brodaty, Kaarin J. Anstey, Mary Haan, Marcia Scazufca, Elena Lobo, Perminder S. Sachdev
Summary: This study synthesizes international findings on the alcohol-dementia relationship, indicating that abstinence from alcohol is associated with an increased risk for all-cause dementia, while there is no consistent evidence to suggest that the amount of alcohol consumed in later life is associated with dementia risk among current drinkers.
Letter
Medicine, General & Internal
Su Jeong Seong, Bin Na Kim, Ki Woong Kim
Summary: This study aims to investigate whether national dementia plans in G7 countries and South Korea conform to the recommendations of the World Health Organization and the Organization for Economic Cooperation and Development.
Article
Medicine, General & Internal
Dae Jong Oh, Hee Won Yang, Tae Hui Kim, Kyung Phil Kwak, Bong Jo Kim, Shin Gyeom Kim, Jeong Lan Kim, Seok Woo Moon, Joon Hyuk Park, Seung-Ho Ryu, Jong Chul Youn, Dong Young Lee, Dong Woo Lee, Seok Bum Lee, Jung Jae Lee, Jin Hyeong Jhoo, Jong Bin Bae, Ji Won Han, Ki Woong Kim
Summary: This cohort study suggests that older women with low emotional support are at risk for dementia. The level of emotional support should be included in dementia risk assessments.
Article
Chemistry, Multidisciplinary
Hyeong-Ku Jo, Jahee Kim, Yi Rang Lim, Sunyoung Shin, Da Som Song, Garam Bae, Yeong Min Kwon, Moonjeong Jang, Soonmin Yim, Sung Myung, Sun Sook Lee, Chang Gyoun Kim, Ki Kang Kim, Jongsun Lim, Wooseok Song
Summary: In this study, a synthetic platform for large-scale production of 2D SnSe semiconductors was developed. The SnSe-based photodetectors showed broadband photodetection capabilities, and their performance and stability were evaluated.
Article
Geriatrics & Gerontology
Gihwan Byeon, Sung Ok Kwon, Jin Hyeong Jhoo, Jae-Won Jang, Jong Bin Bae, Ji Won Han, Tae Hui Kim, Kyung Phil Kwak, Bong Jo Kim, Shin Gyeom Kim, Jeong Lan Kim, Seok Woo Moon, Joon Hyuk Park, Seung-Ho Ryu, Jong Chul Youn, Dong Woo Lee, Seok Bum Lee, Jung Jae Lee, Dong Young Lee, Ki Woong Kim
Summary: This study aimed to determine the differences in risk factors for dangerous driving between older adults with normal cognition and those with cognitive impairment. The driving risk questionnaire (DRQ) and accident/violation records were analyzed. Significant associations were found between risky driving and crash history, safety concern, reduced mileage, and aggressive driving in the normal cognition group. In the cognitive impairment group, only crash history was significantly associated. These findings contribute to evaluating and predicting risky driving and providing advice on whether to continue driving in clinics.
INTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY
(2023)
Article
Neuroimaging
Jun Sung Kim, Jong Bin Baeb, Ji Won Han, Dae Jong Oh, Seung Wan Suh, Jae Hyoung Kim, Ki Woong Kim
Summary: This study investigated the effects of controlled hypertension (cHT) and white matter hyperintensity (WMH) on cognitive function, as well as the mediating role of WMH in the relationship between cHT and cognitive impairment. The results showed that older WMH age was associated with a faster decline in cognitive function, and WMH age mediated the effects of cHT on cognitive function. Therefore, older individuals with cHT and older WMH age may be at a higher risk of cognitive decline.
NEUROIMAGE-CLINICAL
(2023)
Article
Neurosciences
Hyang Jun Lee, Ji Sun Park, Hee Won Yang, Jeong Wook Shin, Ji Won Han, Ki Woong Kim
Summary: This study aimed to construct age-stratified normative data of non-dimensionally normalized temporal and spatial gait features in healthy older adults. The results showed that age and sex had significant effects on gait features, but after dimensional normalization, only age remained as a significant factor. These normative data can be useful in comparative studies of gait function between sexes or ethnicities with different body shapes.
Article
Medicine, General & Internal
Su Jeong Seong, Bin Na Kim, Ki Woong Kim
Summary: This study compared the implementation basis and specific action plans of National Dementia Plans (NDPs) between G7 countries and South Korea. It found that some NDPs lacked support for caregivers, safe environments, healthcare services, and end-of-life care. Some countries strengthened the policy priority of their NDPs through timely updates, evaluation, legislations, or leadership, but only three countries had a legislative basis and three countries included outcome measures in their latest NDP.
JOURNAL OF KOREAN MEDICAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Hyejin Rhyu, Seonjeong Lee, Myunghyun Kang, Daeho Yoon, Sung Myung, Wooseok Song, Sun Sook Lee, Jongsun Lim
Summary: The increasing importance of gas detection has led to extensive research on flexible and transparent high-performance gas sensors. We have developed a sensor for NO2 detection at room temperature, utilizing screen printing on a flexible substrate and coating MoS2 and single-walled carbon nanotubes (SWCNT) on a specific area through the self-assembly method. This fabrication process is rapid, easy, and cost-effective. The proposed sensor enables precise and stable NO2 gas sensing from 50 ppb to 100 ppm, and it could potentially be used for the selective detection of other gases.
Article
Medicine, General & Internal
Min Jeong Kwon, Subin Lee, Jieun Park, Sungman Jo, Ji Won Han, Dae Jong Oh, Jun-Young Lee, Joon Hyuk Park, Jae Hyoung Kim, Ki Woong Kim
Summary: Texture analysis may be an important neuroimaging marker for early detection of svPPA and differentiation from AD.
JOURNAL OF KOREAN MEDICAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Hyeong-Ku Jo, Jahee Kim, Yi Rang Lim, Sunyoung Shin, Da Som Song, Garam Bae, Yeong Min Kwon, Moonjeong Jang, Soonmin Yim, Sung Myung, Sun Sook Lee, Chang Gyoun Kim, Ki Kang Kim, Jongsun Lim, Wooseok Song
Summary: A synthetic platform for industrially applicable 2D semiconductors that addresses the main issues related to large-scale production, wide-range photosensitive materials, and oxidative stability has been developed in this study. The researchers achieved the production of 6-inch scale 2D SnSe semiconductors with spatial homogeneity using a rational synthetic platform based on the thermal decomposition of solution-processed single-source precursors. The SnSe-based photodetectors demonstrated excellent performance in broadband photodetection and were found to be stable in air and at high temperatures.
Article
Geriatrics & Gerontology
Suraj Samtani, Gowsaly Mahalingam, Ben Chun Pan Lam, Darren M. Lipnicki, Maria Fernanda Lima-Costa, Sergio Luis Blay, Erico Castro-Costa, Xiao Shifu, Maelenn Guerchet, Pierre-Marie Preux, Antoine Gbessemehlan, Ingmar Skoog, Jenna Najar, Therese Rydberg Sterner, Nikolaos Scarmeas, Ki-Woong Kim, Steffi Riedel-Heller, Susanne Rohr, Alexander Pabst, Suzana Shahar, Katya Numbers, Mary Ganguli, Erin Jacobsen, Tiffany F. Hughes, Michael Crowe, Tze Pin Ng, Jane Maddock, Anna Marseglia, Rene Melis, Dorota Szczegniak, Henrik Wiegelmann, Myrra Vernooij-Dassen, Yun-Hee Jeon, Perminder S. Sachdev, Henry Brodaty
Summary: This study found that good social connections, including living with others, weekly community group engagement, weekly interaction with family and friends, and rarely feeling lonely, are associated with slower cognitive decline.
LANCET HEALTHY LONGEVITY
(2022)
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.
