Article
Chemistry, Multidisciplinary
Cataldo Valentini, Veronica Montes-Garcia, Pietro Antonio Livio, Tomasz Chudziak, Jesus Raya, Artur Ciesielski, Paolo Samori
Summary: For the past fifteen years, the reduction of electrically insulating graphene oxide (GO) to its conducting form, reduced graphene oxide (rGO), through thermal annealing has been extensively studied. However, the high temperatures required for this process are not suitable for flexible electronics. In this study, the low-temperature annealing of GO was systematically investigated, revealing that the reduced GO (TrGO) obtained at relatively low temperatures exhibited improved electrochemical characteristics and retained its resistance after bending cycles on plastic substrates.
Article
Chemistry, Multidisciplinary
Alexander J. Porkovich, Pawan Kumar, Zakaria Ziadi, David C. Lloyd, Lin Weng, Nan Jian, Toshio Sasaki, Mukhles Sowwan, Abheek Datta
Summary: EMSIs play a crucial role in improving metal NP supported catalysts by enabling effective adsorption and interaction of reactants through charge transfer. By increasing the population of multiple twinned Ru NPs, the surface potential of the catalysts is significantly enhanced, leading to improved activity and stability in the oxygen evolution reaction.
Article
Chemistry, Physical
Michele Melchionna, Miriam Moro, Simone Adorinni, Lucia Nasi, Sara Colussi, Lorenzo Poggini, Silvia Marchesan, Giovanni Valenti, Francesco Paolucci, Maurizio Prato, Paolo Fornasiero
Summary: Integrating graphene oxide (GO) into nanostructured Bi2O3 electrocatalysts for CO2 reduction (CO2RR) improves performance toward formic acid production, with different structures potentially resulting in varied electrocatalytic behavior.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Juan M. Devida, Facundo Herrera, M. Antonieta Daza Millone, Feilix G. Requejo, Diego Pallarola
Summary: Graphene oxide is widely used in electrical sensors for monitoring various processes. However, the presence of defects on the surface of the graphene affects its electrical properties. Therefore, it is important to adjust the surface chemistry of graphene oxide for the immobilization of biomolecules while preserving its electrochemical integrity.
Article
Chemistry, Multidisciplinary
Ke Li, Houbing Zou, Rammile Ettelaie, Jingxia Zhang, Hengquan Yang
Summary: This study presents a novel biocatalytic cascade using Pickering emulsion droplets with two enzymes localized separately in the outer and inner interfacial layers. This approach allows the enzymes to be positioned in their preferred reaction microenvironments and in close proximity to each other on the nanoscale. The interfacial biocatalytic cascades exhibit remarkable catalytic efficiency in alkene epoxidation and thioether oxidation, with a catalytic efficiency 6.9-13.6 times higher than that of free enzymes in solution and their multi-enzymatic counterparts. The enhanced cascading efficiency is attributed to the remarkable interfacial effect of Pickering droplets.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Helin Qin, Jun Wang, Donghui Guo, Dingyong Zhong
Summary: 2D materials have attracted attention for applications in halide perovskite optoelectronic devices due to their high carrier mobility and adjustable work function. Heterogeneous stacking of halide perovskites with 2D materials has been shown to be an effective way to improve the performance of perovskite photovoltaic and optoelectronic devices. The study on the interfacial interactions and electronic properties of graphene/CsPbI3 heterostructures provides valuable insights for designing next-generation electronic devices.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2021)
Article
Chemistry, Physical
Ningning Xuan, Aozhen Xie, Bing Liu, Zhengzong Sun
Summary: Bilayer graphene (BLG) has attracted significant research interest for its tunable physical properties dependent on twisted angles and interlayer interaction. This article focuses on the study of BLG single crystals with representative twisted angles of approximately 0 degrees and approximately 30 degrees, grown by chemical vapor deposition (CVD). The surface potentials of pristine BLG single crystals indicate that the surface potential difference between single layer graphene (SLG) and BLG is lower for approximately 0 degrees compared to approximately 30 degrees. Additionally, reversible tuning of the electrical coupling and properties of BLG is achieved through diazonium salts reaction and nitrogen doping, resulting in a wide range of surface potential tuning from 0 to 50 mV.
Article
Chemistry, Physical
Chao-Zhi Zhang, Qian-Qian Shen, Ying Wang, Ting Li, Dong-Qin Ding
Summary: Graphene oxide (GO) derivatives are widely used in new materials and energy fields. Wastewater containing GO particles needs to be treated due to their biological hazards. Experimental investigation of the radical reaction of GO particles in water provides valuable information for the development of effective methods to treat GO wastewater.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Zhengrong Li, Lulu An, Min Song, Tonghui Zhao, Jingjing Zhang, Chang Zhang, Zhizhan Li, Deli Wang
Summary: Controlling the particle size of the catalyst is crucial for designing efficient electrocatalysts for hydrogen electrode reactions. By controlling the particle sizes, the adsorption of hydrogen and hydroxyl on Ru/C can be effectively tuned, leading to enhanced hydrogen oxidation and evolution reactions. This study reveals that metallic Ru is the active site for these reactions, and smaller catalyst particles are more efficient for hydrogen oxidation due to the three-phase interface reaction. The metallic state of Ru is crucial for hydrogen evolution, and catalytic sites with low hydrogen binding energy play a key role in the majority of the hydrogen oxidation reaction activity. The results emphasize the importance of balancing particle size and metallic states in the design of efficient catalysts for hydrogen electrode reactions.
CHINESE CHEMICAL LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Pratiksha M. Biranje, Jyoti Prakash, Amit P. Srivastava, Sujoy Biswas, Ashwin W. Patwardhan, Jyeshtharaj B. Joshi, Kinshuk Dasgupta
Summary: This study demonstrates the electrochemical exfoliation of graphite to synthesize few-layer graphene oxide (GO) using innovative electrode design and arrangement. Control of sulfuric acid concentration and pH in the electrolyte, as well as the addition of sodium hydroxide, affected the exfoliation yield and morphology of GO sheets. The transition of GO sheets to different structural morphologies was observed by changing the electrolyte composition and pH, with lateral dimensions ranging from 500 nm to 24 µm.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Christoph Baeumer, Jiang Li, Qiyang Lu, Allen Yu-Lun Liang, Lei Jin, Henrique Perin Martins, Tomas Duchon, Maria GloEss, Sabrina M. Gericke, Marcus A. Wohlgemuth, Margret Giesen, Emily E. Penn, Regina Dittmann, Felix Gunkel, Rainer Waser, Michal Bajdich, Slavomir Nemsak, J. Tyler Mefford, William C. Chueh
Summary: The composition of LaNiO3 thin film surfaces dictates surface transformation and the activity of the oxygen evolution reaction, with Ni termination being significantly more active than La termination in the initial state. Active surface phases only develop for select as-synthesized surface terminations.
Article
Engineering, Environmental
Xueying Cao, Yueqing Wang, Dongxing Tan, Bari Wulan, Jizhen Ma, Weijian Guo, Jintao Zhang
Summary: A self-feeding deposition strategy was used to disperse nickel species into single atoms along with the growth of nitrogen-doped carbon nanotubes, inhibiting the aggregation of nickel nanoparticles. The resulting carbon nanotubes and carbon matrix encapsulated the nickel nanoparticles, promoting efficient electron transfer. The unique nucleo- and electm-philic interfaces facilitated the adsorption and activation of carbon dioxide and benzylamine molecules, leading to enhanced electrocatalytic performances.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Coatings & Films
Osman Karslioglu, Lena Trotochaud, Farhad Salmassi, Eric M. Gullikson, Andrey Shavorskiy, Slavomir Nemsak, Hendrik Bluhm
Summary: Standing wave ambient pressure photoemission spectroscopy (SWAPPS) is a promising method for investigating chemical and potential gradients across solid-vapor and solid-liquid interfaces under realistic environmental conditions. This study demonstrates the stability of multilayer mirrors consisting of B4C and W layers at temperatures exceeding 600 degrees C, making them suitable candidates for future SWAPPS studies of surface and subsurface species in heterogeneous catalytic reactions.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2022)
Article
Chemistry, Multidisciplinary
Wei Liu, Giorgio Speranza
Summary: Recovering the properties of graphene through reduction processes involves removing oxygen atoms, though residual oxygen atoms and lattice defects still limit the recovery of the original properties. It is crucial to select a chemical process that allows for fine tuning of residual oxygen content and thus adjusting the properties of the final product. In this study, a chemical-processing technique using hydroiodic acid successfully tuned the oxygen content from 33.6% to 10.7%, showcasing precise control over material properties.
Article
Chemistry, Inorganic & Nuclear
Jiawei Fei, Dan Zhang, Tiantian Wang, Yue Shi, Jiawei Zhu, Tianrong Zhan, Minge Tian, Jianping Lai, Lei Wang
Summary: The effect of precisely tuned interstitial built-in electric field on the adsorption of intermediates and hydrogen spillover was systematically investigated using a series of nanocatalysts. The results showed that the catalyst with the best catalytic performance for hydrogen evolution reactions was achieved by adjusting the interstitial content. Moreover, the catalyst exhibited long-time stability in water electrolyzer.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Julia C. Hestenes, Richard May, Jerzy T. Sadowski, Naiara Munich, Lauren E. Marbella
Summary: Ni-rich transition-metal oxides with high specific capacities have potential for improving Li-ion battery energy density, but suffer from interfacial instabilities. This study utilizes SSNMR and XPEEM techniques, along with in situ solution NMR, to investigate the chemical properties and spatial distribution of CEI in detail.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Rongting Wu, Stephen Eltinge, Ilya K. Drozdov, Adrian Gozar, Percy Zahl, Jerzy T. Sadowski, Sohrab Ismail-Beigi, Ivan Bozovic
Summary: Borophene, a crystalline monolayer boron sheet, has the potential to be used in flexible electronics, energy storage, and catalysis due to its polymorphism. Synthesized on a square-lattice Cu(100) surface, borophene forms micrometre-scale single-crystal domains with a new polymorph different from previous reports.
Article
Chemistry, Physical
Jiayue Wang, Jing Yang, Alexander Karl Opitz, Dmitri Kalaev, Andreas Nenning, Ethan J. Crumlin, Jerzy T. Sadowski, Iradwikanari Waluyo, Adrian Hunt, Harry L. Tuller, Bilge Yildiz
Summary: Understanding the surface defect chemistry and its strain dependency is crucial in developing next-generation electrochemical devices. This study constructed the strain-dependent surface defect equilibria of mixed ionic-electronic conducting perovskite oxides and investigated the effect of strain on the reducibility of the surfaces. The findings were validated by first principles calculations and thermodynamic analyses, providing a quantitative determination of the surface defect chemistry.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jiayue Wang, Abinash Kumar, Jenna L. Wardini, Zhan Zhang, Hua Zhou, Ethan J. Crumlin, Jerzy T. Sadowski, Kevin B. Woller, William J. Bowman, James M. LeBeau, Bilge Yildiz
Summary: Exsolution synthesizes self-assembled metal nanoparticle catalysts via phase precipitation. This method has so far overlooked the impact of exsolution on the surface chemistry and structure of the host oxide, which plays an important role in the overall catalytic activity. Surface transformations, such as nonstoichiometry and grain boundaries induced by exsolution, can alter ion transport and reaction kinetics, thereby affecting the catalytic activity. Thus, it is crucial to consider the exsolved oxide surface in designing nanocatalysts.
Article
Chemistry, Multidisciplinary
Jiayue Wang, Dmitri Kalaev, Jing Yang, Iradwikanari Waluyo, Adrian Hunt, Jerzy T. Sadowski, Harry L. Tuller, Bilge Yildiz
Summary: Exsolution is a recent advancement in fabricating oxide-supported metal nanoparticle catalysts. The kinetics of metal exsolution depends on the kinetics of oxygen release from the host oxide, in addition to the kinetics of metal cation diffusion. This study demonstrates that in the thin-film perovskite SrTi0.65Fe0.35O3 (STF) system, surface oxygen release governs the metal nanoparticle exsolution kinetics. Increasing the oxygen release rate in STF accelerates the Fe0 exsolution kinetics and increases the quantity of exsolved Fe0 over time.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Sreejith Nair, Zhifei Yang, Dooyong Lee, Silu Guo, Jerzy T. Sadowski, Spencer Johnson, Abdul Saboor, Yan Li, Hua Zhou, Ryan B. Comes, Wencan Jin, K. Andre Mkhoyan, Anderson Janotti, Bharat Jalan
Summary: A study shows that epitaxial strain can be used to enhance the metal oxidation chemistry and thin-film growth of metal oxide thin films. Platinum group metal oxides are promising materials for future electronics and spintronics. However, their synthesis as thin films is challenging due to low vapor pressures and oxidation potentials. Using Ir as an example, the researchers demonstrate how epitaxial strain can control its oxidation chemistry, enabling phase-pure Ir or IrO2 films. The study also reveals the generality of this principle by showing the effect of epitaxial strain on Ru oxidation.
NATURE NANOTECHNOLOGY
(2023)
Correction
Chemistry, Physical
Julia C. Hestenes, Jerzy T. Sadowski, Richard May, Lauren E. Marbella
Article
Chemistry, Multidisciplinary
Zixuan Li, Jerzy T. Sadowski, Andrei Dolocan, Filippo Mangolini
Summary: Functional oxides have been extensively studied for their potential applications in various fields. This study presents a new technique called IL-o-SPL that utilizes room-temperature ionic liquids as the functionalizing material to mediate the electrochemistry at AFM tip/substrate contacts. The results show that IL-o-SPL allows for the fabrication of sub-100 nm oxide features with high patterning accuracy and tunability of the chemical state and morphology of the patterned structures. This technique opens up new possibilities for the development of advanced integrated devices with tailored properties at the nanoscale.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hakon Rost, Simon P. Cooil, Anna Cecilie Asland, Jinbang Hu, Ayaz Ali, Takashi Taniguchi, Kenji Watanabe, Branson D. Belle, Bodil Holst, Jerzy T. Sadowski, Federico Mazzola, Justin W. Wells
Summary: Understanding the collective behavior of quasiparticles in solid-state systems is crucial for nonvolatile electronics, allowing control of many-body effects and their applications. Hexagonal boron nitride (hBN) is a wide-energy-bandgap semiconductor with potential for low-dimensional device heterostructures. Despite its inertness, few-layer hBN shows a significant increase in electron mass, affecting the lifetime of pi-band states. The enhancement is phonon-mediated and has important implications for hBN-based devices.
Article
Chemistry, Multidisciplinary
Ravindra Singh Bisht, Jaeseoung Park, Haoming Yu, Chen Wu, Nikhil Tilak, Sylvie Rangan, Tae J. Park, Yifan Yuan, Sarmistha Das, Uday Goteti, Hee Taek Yi, Hussein Hijazi, Abdullah Al-Mahboob, Jerzy T. Sadowski, Hua Zhou, Seongshik Oh, Eva Y. Andrei, Monica T. Allen, Duygu Kuzum, Alex Frano, Robert C. Dynes, Shriram Ramanathan
Summary: A single bias can tune the coupling strength between neighboring cells in a network of hydrogen-doped perovskite nickelate devices, suggesting potential use for neuromorphic learning and hardware implementation of artificial intelligence. Graded proton distribution in the inhomogeneous medium of the hydrogen-doped nickelate film enables this behavior, as shown by electrical transport measurements and spatially resolved diffraction and nanoprobe X-ray and scanning microwave impedance spectroscopic studies. Signal integration is further demonstrated through the coupling of various junctions.
Article
Materials Science, Multidisciplinary
Nassar Doudin, Kayahan Saritas, Jin-Cheng Zheng, J. Anibal Boscoboinik, Jerzy T. Sadowski, Padraic Shafer, Alpha T. N'Diaye, Min Li, Sohrab Ismail-Beigi, Eric Altman
Summary: Researchers have successfully synthesized a single layer of 2D Cr-silicate material with high Curie temperature and ferromagnetic properties, providing a new platform for studying 2D magnetism and applications in spin-polarized devices.
Article
Chemistry, Physical
Julia C. Hestenes, Jerzy T. Sadowski, Richard May, Lauren E. Marbella
Summary: The high-voltage LNMO spinel cathode offers high energy density without costly Co, but suffers from poor cycling performance due to electrolyte oxidation and transition metal dissolution. The study uses operando EPR and NMR spectroscopy to show the tight coupling of transition metal dissolution and HF formation. XPEEM provides surface-sensitive XAS measurements, suggesting surface Mn3+ sites and disproportionation during charging. The presence of MnF2 in the CEI impedes the cathode's ionic and electronic properties.
Article
Materials Science, Multidisciplinary
T. Yilmaz, E. Vescovo, J. T. Sadowski, B. Sinkovic
Summary: We conducted detailed high-resolution angle-resolved photoemission experiments on VSe2 samples grown under different conditions. The results showed that optimally grown samples exhibited high-temperature spectral kink, quasiparticle peak, and the Fermi gap in their surface electronic structure. These findings suggest strong electronic correlation, often associated with superconducting behavior. Furthermore, the temperature evolution of the quasiparticle peak and the Fermi gap followed a trend similar to that observed in high-temperature superconductors. These realizations can guide future studies in inducing high-temperature superconductivity in transition metal dichalcogenides and understanding the physics behind high-Tc superconductors.
Article
Materials Science, Multidisciplinary
Yaguang Zhu, Dongxiang Wu, Chaoran Li, Xiao Tong, J. Anibal Boscoboinik, Jerzy T. Sadowski, Guangwen Zhou
Summary: In this study, an atomistic picture of the initial-stage oxidation of Cu3Au(100) was presented using a combination of surface science tools and modeling. The results showed that oxygen adsorption led to the exfoliation of the outermost CuAu layer, exposing the inner Cu plane. This occurred through the oxygen-assisted abstraction of Au and Cu atoms from step edges and CuAu terraces, leading to the formation of Cu clusters and dissolution of Au adatoms. The adsorption of oxygen on the exposed Cu plane resulted in the nucleation and growth of a c(2 x 2)-O superstructure.
Article
Materials Science, Multidisciplinary
Ramesh C. Budhani, Vinay Sharma, Ezana Negusse, Jacob Casey, Arjun K. Pathak, Jerzy T. Sadowski, Brian Kirby
Summary: In this study, the interface-driven magnetic interactions were evaluated, and it was found that the enhancement of Dzyaloshinskii-Moriya Interaction (DMI) resulted in the stabilization of topological spin textures. Interesting magnetic behaviors, such as anomalous Hall resistivity under parallel magnetic field, were observed.
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.
