Article
Chemistry, Multidisciplinary
Eric R. R. Hoglund, De-Liang Bao, Andrew O'Hara, Thomas W. W. Pfeifer, Md Shafkat Bin Hoque, Sara Makarem, James M. M. Howe, Sokrates T. T. Pantelides, Patrick E. E. Hopkins, Jordan A. A. Hachtel
Summary: Grain boundaries are a common microstructural feature that greatly influence the functionality of various materials. Extensive experimental and theoretical studies have been conducted to understand the correlation between atomic-scale grain boundary structures and macroscopic properties. In this study, a SrTiO3 grain boundary was examined using advanced microscopy and spectroscopy techniques, along with density functional theory. The results provide insights into the impact of individual boundaries on macroscopic properties through the analysis of localized grain boundary vibrations.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Liu Yang, Yanyan Wang, Xu Wang, Shareen Shafique, Fei Zheng, Like Huang, Xiaohui Liu, Jing Zhang, Yuejin Zhu, Chuanxiao Xiao, Ziyang Hu
Summary: This review focuses on the application of atomic force microscopy (AFM)-based scanning probing techniques in investigating the local properties of polycrystalline photovoltaic materials. By studying the optoelectronic heterogeneities at grain interiors (GIs) and grain boundaries (GBs), it is possible to understand their critical roles in device performance and guide optimization. The potential of these AFM-based techniques in developing next-generation photovoltaics and optoelectronics is also discussed.
Article
Chemistry, Multidisciplinary
Wenjie Li, Weimin Li, Guo Chen, Liyun Wu, Jun Zhang, Ming Chen, Guohua Zhong, Junyi Zhu, Ye Feng, Hao Zeng, Chunlei Yang
Summary: Conducting atomic force microscopy is used to investigate the mechanism behind the lower power conversion efficiency (PCE) of CZTS solar cells compared to CIGS solar cells. The difference in efficiency is attributed to the distinct band alignment at the grain boundaries and grain interior for the two materials. CZTS demonstrates type-I band alignment, leading to enhanced carrier recombination and decreased PCE.
Article
Materials Science, Multidisciplinary
Xiongbo Yan, Junjun Wei, Kang An, Jinlong Liu, Liangxian Chen, Xiaotong Zhang, Chengming Li
Summary: Transient heat treatment of polycrystalline CVD diamond films in an Ar/H-2 plasma arc environment resulted in structural changes of the diamond grain boundaries. The graphitization difference near nucleation side and near growth side is attributed to varying grain boundary contents, with bonded-hydrogen atoms playing an active role in the process. Evolution in Raman spectra peak intensity suggests involvement of long-chain hydrocarbon precursors in the sp(3)-to-sp(2) transformation mechanism.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Xiaochen Li, Haibo Long, Jianfei Zhang, Dongfeng Ma, Deli Kong, Yan Lu, Shiduo Sun, Jixiang Cai, Xiaodong Wang, Lihua Wang, Shengcheng Mao
Summary: This study used in situ TEM observations to directly reveal dislocation nucleation at grain boundaries in nanocrystalline metals. The findings contradict the common hypothesis predicted by molecular dynamic simulations, showing that complete dislocations can be emitted from grain boundaries in small-grained structures.
MATERIALS CHARACTERIZATION
(2021)
Article
Polymer Science
Gregory Meyers, Rajesh Paradkar, Ester Caro, Wenzhao Yang, Kenneth Kearns
Summary: This article describes various atomic force microscopy methods for imaging and measuring the modulus of polyethylene layers in a five-layer multilayer film. The methods can distinguish the layers based on different signals and are highly sensitive to density differences, with statistically significant results.
Article
Materials Science, Multidisciplinary
Yizhong Guo, Jiao Teng, Guo Yang, Ang Li, Yao Deng, Chengpeng Yang, Lihua Wang, Xin Yan, Ze Zhang, Xiaoyan Li, En Ma, Xiaodong Han
Summary: Detailed monitoring of atomic-scale processes is crucial for understanding grain rotation in nanocrystalline metals. In this study, in situ atomic-resolution evidence reveals that the type of grain boundary plays a role in the atomic processes involved in grain rotation in nanocrystalline Pt. General GBs exhibit a combination of dislocation activities and atomic rearrangements, while tilt GBs mostly rely on dislocation activities. GB dislocation climb, glide, and reaction are often associated with Lomer-like dislocation formation and destruction.
Article
Chemistry, Multidisciplinary
Xinfei Ge, Lijun Wang, Wenjun Zhang
Summary: This study provides direct evidence for the phosphorus availability-promoting effect of alginate as a fertilizer additive, and offers guidance for the better design of phosphorus fertilizer additives to achieve sustainable phosphorus management in agriculture.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Wenlong Yao, Shuyan Fang, Ziyang Hu, Like Huang, Xiaohui Liu, Houcheng Zhang, Jing Zhang, Yuejin Zhu
Summary: This study uses photoconductive atomic force microscopy to investigate the photocurrent and photovoltage of large-grained perovskites, revealing that photocurrent collection along grain boundaries relies on adjacent grains, showing grain boundary to grain boundary heterogeneity. Additionally, it is found that the photovoltage of grains deduced at specific positions is larger than that of grain boundaries, playing a crucial role in improving photovoltage.
Article
Chemistry, Multidisciplinary
Seokbeom Roh, Taeha Lee, Da Yeon Cheong, Yeonjin Kim, Soohwan Oh, Gyudo Lee
Summary: In this study, the surface charge and stiffness of metaphase chromosomes were measured using atomic force microscopy. The results showed that the chromosomes were positively charged and had uniform stiffness when covered with extra materials, but became strongly negatively charged and showed non-uniform and augmented stiffness after removing the extra materials. This study provides new insights into the structure and analysis of chromosomes.
NANOSCALE ADVANCES
(2023)
Article
Construction & Building Technology
Yuhong Wang, Kecheng Zhao, Fangjin Li, Qi Gao, King Wai Chiu Lai
Summary: This study investigated the presence of asphaltenes in different types of asphalt and their impacts on the asphalt properties. It was found that the dispersion and formation of asphaltene particles vary depending on the asphalt source, with asphaltene content playing a predominant role in determining viscosity and asphaltene morphology likely affecting the derived ductility of asphalt.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Zhong Li, Jianing Qi, Zhuangzhuang Li, Hongxia Li, Hui Xu, Guohua Bai, Xianguo Liu, Xuefeng Zhang
Summary: The magnetic domain structure and soft magnetic properties of high-entropy alloys FeCoNi(AlSi)x (0.1 <= x <= 0.7) are influenced by grain and phase boundaries. The variations in grain and phase boundaries in different alloys affect their magnetic properties differently.
Article
Chemistry, Multidisciplinary
Elida I. de Obaldia, Jesus J. Alcantar-Pena, Frederick P. Wittel, Jean Francois Veyan, Salvador Gallardo-Hernadez, Yury Koudriavtsev, Dainet Berman-Mendoza, Orlando Auciello
Summary: This paper investigates the effect of hydrogen atom insertion into the grain boundaries of polycrystalline diamond films, focusing on the H atom concentration and its impact on the properties. The study suggests a simple model where two dangling bonds per unit cell of C atoms serve as the site of hydrogen incorporation. The experiment results show that the concentration of H atoms at the grain boundaries is consistent regardless of grain size. Conductive atomic force microscopy and ultraviolet photoelectron spectroscopy techniques were used to observe the electrical behavior and metallic properties of the films.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Penghui Li, Yeqiang Bu, Linyan Wang, Chong Wang, Junquan Huang, Ke Tong, Yujun Chen, Julong He, Zhisheng Zhao, Bo Xu, Zhongyuan Liu, Guoying Gao, Anmin Nie, Hongtao Wang, Yongjun Tian
Summary: Fracture behaviors in perfect and twinned B4C crystals were studied via in situ TEM mechanical testing. It was found that cracks preferentially initiated at the twin boundaries (TBs) and propagated along them, resulting in the fracture of B4C. The theoretical calculations also showed a softening effect of TBs on B4C, with amorphous bands preferentially nucleated at the TBs. These findings clarify the atomic arrangement and the role of planar defects in the failure of B4C.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Genchun He, Chao Xu, Chunmei Liu, Huaping Liu
Summary: This study systematically investigated the effect of symmetrical (001) tilt grain boundaries on the hardness of diamond and revealed that the misorientation angle plays a crucial role, with smaller angles leading to hardness enhancement. For misorientation angles smaller than 36.87°, plastic deformations are mainly caused by dislocation propagation, while for larger angles, it is mainly through atomic disordering mode.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Physical
Monika Kosowska, Awadesh K. Mallik, Michal Rycewicz, Ken Haenen, Malgorzata Szczerska
Summary: In this research, a mathematical investigation on the application of diamond structures in a fiber-optic Fabry-Perot measurement was conducted to assess their impact on the finesse coefficient. The study presented modeled transmission functions of cavities using different diamond structures and compared the results with experimental findings.
Article
Nanoscience & Nanotechnology
Justas Zalieckas, Ivan R. Mondragon, Paulius Pobedinskas, Arne S. Kristoffersen, Samih Mohamed-Ahmed, Cecilie Gjerde, Paul J. Hol, Geir Hallan, Ove N. Furnes, Mihaela Roxana Cimpan, Ken Haenen, Bodil Holst, Martin M. Greve
Summary: This study demonstrates the synthesis of diamond on titanium acetabular shells using surface wave plasma chemical vapor deposition, which has the potential to improve the osseointegration of orthopedic implants. The adhesion and proliferation of osteogenic cells were found to be better on hydrogen-terminated ultrananocrystalline diamond compared to the oxygen-terminated counterpart. These findings provide new opportunities for applying diamond coatings on orthopedic implants to enhance bone fixation and osseointegration.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Mario Baehr, Martin Jahn, Christoph Heinze, Kristin Neckermann, Jan Meijer, Thomas Ortlepp
Summary: An integrated magnetic sensor utilizing negatively charged nitrogen vacancy centers in diamond is designed and tested. The sensor device, which features a compact size of 10 mm, is accessed and readout solely optically and includes a small HPHT diamond slab, LED for excitation, and integrated photodiodes. The device achieves DC sensitivity to magnetic fields of 49 nA mT(-1) in the range of 5-50 mT and can detect very small magnetic fields with a sensitivity of 4.8 pA mu T-1.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Mario Baehr, Indira Kaepplinger, Paulius Pobedinskas, Thomas Frank, Andre Gruen, Ken Haenen, Thomas Ortlepp
Summary: This article introduces a method for preparing a diamond coating on the rear side of a pressure sensor diaphragm as a protective layer. The method involves two additional steps, namely the seeding of a nanodiamond layer and the low-temperature growth of a diamond film. Tests show that the diamond layer does not affect the stability of the device, and this method is scalable and cost effective.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Energy & Fuels
Diego Lopez-Carballeira, Jorne Raymakers, Anna Artemenko, Ruben Lenaerts, Jan Cermak, Jaroslav Kulicek, Shannon S. Nicley, Alexander Kromka, Ken Haenen, Wouter Maes, Bohuslav Rezek
Summary: Organic-based photovoltaic devices have specific advantages in terms of cost, deployment ease, semi-transparency, and performance under low and diffuse light conditions. This study investigates the influence of oligothiophene spacer length on the performance of a solar cell using thin-film boron-doped diamond electrodes. The researchers found that the length of the spacer has an impact on the efficiency of the solar cell.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Chemistry, Multidisciplinary
Gufei Zhang, Ramiz Zulkharnay, Xiaoxing Ke, Meiyong Liao, Liwang Liu, Yujie Guo, Yejun Li, Horst-Guenter Rubahn, Victor V. Moshchalkov, Paul W. May
Summary: By investigating electrical transport phenomena, it is found that diamond nanorings (DNRs) transform into bosonic semiconductors upon the formation of Cooper pairs, exhibiting a sharp resistance increase and a giant negative magnetoresistance. In contrast, diamond half-loops (DHLs) undergo a metal-superconductor transition. This finding reveals the potential use of DNRs in manipulating Cooper pairs in superconducting quantum devices.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Coatings & Films
Pieter Verding, Paulius Pobedinskas, Rani Mary Joy, Essraa Ahmed, Zdenek Remes, Rachith Shanivarasanthe Nithyananda Kumar, Sarah Baron, Markus Hoefer, Volker Sittinger, Milos Nesladek, Ken Haenen, Wim Deferme
Summary: This study investigates four different methods for seeding nanodiamond particles onto glass to produce nanocrystalline diamond coatings. These methods include standard spin coating, dip coating, ink-jet printing, and ultrasonic spray coating. The impact of these techniques on the properties of the diamond coatings, including morphology, optics, and mechanical performance, is studied. The droplet-based techniques show higher roughness but similar mechanical performance compared to spin coating.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Teodoro Garcia-Millan, Javier Ramos-Soriano, Mattia Ghirardello, Xia Liu, Cristina Manuela Santi, Jean-Charles Eloi, Natalie Pridmore, Robert L. Harniman, David J. Morgan, Stephen Hughes, Sean A. Davis, Thomas A. A. Oliver, Kathreena M. Kurian, M. Carmen Galan
Summary: This study presents a new type of fluorescent probe material called nontoxic carbon dots, which can be used in biomedical diagnostic applications. The researchers successfully synthesized carbon dots with high emission efficiency and dual-emission properties, and analyzed their composition and properties using various analytical techniques. Furthermore, the utility of this fluorescent probe was demonstrated in clinical settings, where it was used for immunohistochemical staining of human brain tissues and achieved dual-channel detection.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Zhichao Liu, Simona Baluchova, Bob Brocken, Essraa Ahmed, Paulius Pobedinskas, Ken Haenen, Josephus G. Buijnsters
Summary: This study presents a simplified approach for fabricating BDD-based three-electrode sensor chips through direct inkjet printing of diamond nanoparticles on silicon substrates. The optimized inkjet-printed features resulted in uniform BDD thin-film with excellent electrochemical characteristics and reusability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Denis Ari, Jean-Francois Bergamini, Teresa Rodrigues, Wolfgang Knoll, Charles Cougnon, Essraa Ahmed, Paulius Pobedinskas, Ken Haenen, Nicolas Nuns, Rabah Boukherroub, Sabine Szunerits, Yann R. Leroux
Summary: We propose a new method to functionalize carbon materials through a catalyzed Diels-Alder reaction. Carbon materials can be used as dienes or dienophiles in the Diels-Alder reaction. Different carbon materials, such as glassy carbon, carbon powder, pyrolytic graphite, and graphene, were functionalized and characterized by electrochemical means, atomic force microscopy, and X-ray photoelectron spectroscopy experiments. This method allows for rapid and high surface coverage functionalization of carbon materials under mild conditions.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Ramiz Zulkharnay, Paul W. May
Summary: In situ observation reveals the large negative electron affinity (NEA) of scandium-terminated diamond, which shows high thermal stability up to 900 degrees C. The NEA values of -1.45 eV and -1.13 eV for diamond (100) and (111) surfaces, respectively, make them the highest measured NEA for a metal adsorbed onto bare diamond so far. This study provides insights into tuning the adsorbate-diamond interface and expands the material options for effective electron-emission applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Awadesh Kumar Mallik, Fernando Lloret, Marina Gutierrez, Rozita Rouzbahani, Paulius Pobedinskas, Wen-Ching Shih, Ken Haenen
Summary: A diamond/Ti/diamond multilayer structure was fabricated using thin-film CVD and PVD routes. Pre-treating the silicon base substrate with argon plasma etching and detonation nanodiamond seeding helped in the nucleation and growth of well-adherent CVD diamond films. Sputtering of titanium on the CVD-grown diamond surface resulted in a bead-like microstructure. Hydrogen plasma etching was essential for smoothening the as-grown texture and promoting the growth of a nanocrystalline diamond top layer. The titanium layer between the diamond layers exhibited a fine-grained microstructure.
Article
Chemistry, Multidisciplinary
Bhavesh Bharatiya, Magdalena Wlodek, Robert Harniman, Ralf Schweins, Judith Mantell, Gang Wang, Piotr Warszynski, Wuge H. Briscoe
Summary: Lipoteichoic acid (LTA) from Bacillus subtilis was found to self-assemble into spherical micelles in aqueous solution and exhibit adsorption behavior at the solid-liquid interface. The presence of calcium chloride (CaCl2) influenced the size and structure of LTA micelles, while also promoting LTA adsorption at the SiO2-water interface. This study provides valuable insights into the self-assembly behavior of LTA and its role in bacterial adhesion.
Article
Chemistry, Multidisciplinary
Niall M. C. Mulkerns, William H. Hoffmann, Javier Ramos-Soriano, Noelia de la Cruz, Teodoro Garcia-Millan, Robert L. Harniman, Ian D. Lindsay, Annela M. Seddon, M. Carmen Galan, Henkjan Gersen
Summary: A practical method based on measuring the refractive index of nanoparticles in suspension is proposed for determining the ratio of functionalisation layer volume to particle volume. The method is successfully applied to different nanoparticles and shows the ability to detect differences in surface functionalisation or composition of nanosized particles. This non-destructive and rapid method is well-suited for industrial particle characterisation and biological applications.
Article
Polymer Science
Steven T. G. Street, Yunxiang He, Robert L. Harniman, Juan Diego Garcia-Hernandez, Ian Manners
Summary: We developed a modular and functionalizable platform for producing biocompatible core-shell block copolymer nanofibers of controlled length. These nanofibers had a crystalline core and a corona that could be easily modified to incorporate imaging agents and targeting groups. The results provide a foundation for the future development of precision polymer nanofibers.
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.