Article
Chemistry, Physical
Chenhong Fang, Zhi Xu, Le Li, Huijun Ouyang, Guyu Xiao
Summary: In this study, a post-impregnation approach was used for the first time to incorporate a micropore template into a carbon precursor. By pyrolysis, abundant mesopores and numerous micropores were simultaneously generated, resulting in hierarchical pore structures and high specific surface area in the porous carbons.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Changde Ma, Jiang Gong, Shuang Zhao, Xiaoguang Liu, Xueying Mu, Yanhui Wang, Xuecheng Chen, Tao Tang
Summary: The study introduces a green and one-pot method to produce heteroatom-doped hierarchical porous carbon materials without toxic reagents. The nitrogen-doped porous carbon obtained has high specific surface area and abundant heteroatom dopants, with the potassium carbonate template being recyclable. The material exhibits high specific capacitance and excellent rate capability, making it suitable for various research fields.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Materials Science, Multidisciplinary
Qiuhong Sun, Kai Zhu, Xiangli Ji, Dandan Chen, Cheng Han, Ting-Ting Li, Yue Hu, Shaoming Huang, Jinjie Qian
Summary: In this study, a highly efficient non-noble metal catalyst was synthesized using the zeolite-imidazole framework carbonization and carbon nanotube growth methods. After the addition of an iron source, the resulting porous carbon nanomaterial exhibited excellent catalytic activity for oxygen reduction reaction, comparable to commercial platinum catalysts. Additionally, the interwoven carbon nanotubes obtained through urea catalysis further shortened the diffusion pathways of ions and electrons.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Physical
Lei Jiao, Xiaofang Li, Wenbo Wei, Sheng-Hua Zhou, Shu-Guo Han, Dong-Dong Ma, Yue Mao, Qiang Xu, Xin-Tao Wu, Qi-Long Zhu
Summary: A hierarchically ordered porous superstructure of N-doped carbon embedded with FeNi diatomic sites has been synthesized for highly efficient CO2 electroreduction. The unique structure of the catalyst, including Fe-Ni atomic pair sites and multi-level porosity, contributes to excellent activity, selectivity, and stability. The optimized electron state and decreased reaction energy barrier within the diatomic pairs improve the intrinsic catalytic activity and selectivity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Jiajia Xiao, Zihe Cai, Tahir Muhmood, Xiaojun Hu, Shengxuan Lin, Xiaobin Hu
Summary: A tailored trimodal porous carbon support embedded with copper nanoclusters is proposed to confine red phosphorous (RP) for lithium/sodium-ion batteries. The resulting Cu-OMC@RP anode exhibits high reversible capacity, superb rate properties, and outstanding cycling stability.
Article
Chemistry, Physical
Feng Wei, Huadong Tian, Pengmei Chen, Yaohui Lv, Jiarui Huang
Summary: Carbonaceous zinc ion hybrid capacitors (CZHCs) have gained considerable attention due to their high energy density from zinc-ion batteries and the excellent safety and high power density from supercapacitors. However, the complex preparation process for the carbon cathode necessitates the development of a simple and efficient method. This study demonstrates the synthesis of porous carbon nanosheets (C-Xs) through a dual-template strategy and K2CO3 activation of anthracene molecules, resulting in layered sheet-like structures with high surface area. The Zn-C-Xs ZHC cathode exhibits outstanding zinc storage properties, achieving a discharge capacity of 121.7 mAh g(-1), maximum energy density of 109.3 Wh kg(-1), and power density of 15.6 kW kg(-1) in a 3M ZnSO4 electrolyte. After 30,000 cycles, it maintains a capacity retention of 96.2% and a coulombic efficiency close to 100%. This work presents a simple and efficient route for the synthesis of carbon nanosheet cathodes using a dual-template strategy for ZHCs.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Zhenwei Wu, Kun Zhang, Chunhui Ma, Sha Luo, Wei Li, Shouxin Liu
Summary: N-doped hierarchically porous carbon (N-HPC) with ordered mesopores is synthesized from liquefied wood through a soft-templating and chemical blowing method with the assistance of NH4Cl. The NH4Cl enhances the interactions between the carbon sources and soft templates, resulting in carbon materials with highly ordered mesostructure after carbonization. NH4Cl is further used to introduce N atoms and micropores into the carbon structures. The obtained N-HPC exhibits a highly ordered p6mm mesostructure, high specific surface area (1160 m2 g-1), and nitrogen content of 3.75 wt%, leading to enhanced electrochemical performance for supercapacitors.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Liyuan Qin, Yang Wu, Enchen Jiang
Summary: Swine manure activated carbon (SMAC) was prepared using a simple in situ template method and pyrolysis. The effects of in situ templates and structural characteristics of SMACs were studied. The results showed that the pickling steps during pyrolysis and activation could control the pore structure of SMACs, resulting in excellent structural properties. SMAC exhibited good electrochemical performance in supercapacitors.
Article
Chemistry, Physical
Mingjiang Li, Xin Peng, Zhaohui Li, Gangtie Lei, Shuhong Xie, Xiaoping Ouyang, Yanhuai Ding, Kailing Sun, Tongye Wei
Summary: Researchers have successfully embedded alpha-MnS nanoparticles in sulfur/nitrogen-doped porous carbon, creating MnS@S,N-PC electrode materials with excellent electrochemical properties.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Xuetao Zhang, Qifang Lu, Enyan Guo, Jiansong Feng, Mingzhi Wei, Jingyun Ma
Summary: Poplar catkins are used as a biotemplate for designing interconnected porous carbon materials for hybrid supercapacitors. NiCo LDH/IPC composites exhibit superior electrochemical performance and provide higher specific energy and better cycling stability in hybrid supercapacitors compared to pure NiCo LDH electrodes.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Engineering, Environmental
Paramasivam Balasubramanian, Hasmat Khan, Ji-Hu Baek, Se-Hun Kwon
Summary: This study successfully designed and synthesized a single-atom catalyst consisting of atomic Co and Ni with NiCo alloys encapsulated nitrogen-doped carbon nanotubes (N-CNTs). The catalyst showed excellent performance in oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) with ultralow overpotential and high mass activity, making it suitable for clean hydrogen production.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Le Li, Zhi Xu, Xiaoxia Chen, Chenhong Fang, Deyue Yan, Guyu Xiao
Summary: The use of nanoscale melamine resin spheres (NMRS) in the fabrication of porous carbons has shown to enhance their properties significantly, acting as both a pore-forming agent and dopant. This bifunctional template provides a convenient pathway for the production of porous carbons with excellent catalytic performances.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Engineering, Environmental
Beichen Xue, Jiahuan Xu, Rui Xiao
Summary: Porous carbon cages were prepared from heavy bio-oil using an ice template-assisted activation method. The resulting porous carbons possess an open structure with hollow cavities and layered shells, leading to excellent energy and power performance for supercapacitors.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Ying Long, Yan Xia, Run Zhu, Shenxin Xia, Yangfei Cao, Tongtao Li, Angang Dong
Summary: In this study, three-dimensional ordered, hierarchically porous carbon polyhedrons (3D-OHPCs) were constructed as an efficient support for immobilizing platinum nanocrystals (NCs). The 3D-OHPCs were achieved by template-confined pyrolysis of a zinc-based zeolite imidazolate framework (ZIF-8) grown within polystyrene templates. The resulting material, named CA-Pt@3D-OHPCs-1600, showed comparable activities to commercial Pt/C catalysts and could withstand over 30,000 cycles of accelerated durability tests.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Huiling Li, Yi-Lin Liu, Haotian Jin, Lihua Cao, Haoqi Yang, Shaohua Jiang, Shuijian He, Shanshan Li, Kunming Liu, Gaigai Duan
Summary: The study presents a hierarchical porous polyimide-derived carbon electrode fabricated using bimetallic salts as precursor and template. The electrode shows high specific capacitance and good rate performance and stability.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Engineering, Chemical
Ahmed Amine Azzaz, Camelia Matei Ghimbeu, Salah Jellai, Leila El-Bassi, Mejdi Jeguirim
Summary: In this research, an ecofriendly approach was used to treat liquid and solid agricultural wastes from the olive mill industry. The treatment involved impregnating raw olive pomace with olive mill wastewater and converting the resulting sample into hydrochars and biochars through hydrothermal carbonization and slow pyrolysis methods. The study found that the yields of hydrochars were higher than biochars, and the carbon percentage and volatile matter contents varied with the treatment temperature. Higher temperatures resulted in increased macro-elements contents and decreased O/C ratios, leading to higher heating values for both hydrochars and biochars. The analysis also revealed differences in surface chemistry and functional groups between hydrochars and biochars. These findings highlight the potential applications of hydrochars and biochars in agriculture and the environment, and their potential use in co-firing with coal in industrial boilers.
Article
Chemistry, Physical
Adrian Beda, Angel M. Escamilla-Perez, Loic Simonin, Camelia Matei Ghimbeu
Summary: This study focuses on the synthesis of hard carbons from natural polyphenols derived from different vegetal extracts. The obtained hard carbons have disordered structures and a certain amount of inorganic compounds, and exhibit good electrochemical performance and cycling stability, with the best performance achieved for materials derived from myrobalan.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Anna Celeste, Francesco Capitani, Pierre Fertey, Annalisa Paolone, Ferenc Borondics, Oana Grad, Gabriela Blanita, Claudia Zlotea
Summary: Metal-organic frameworks (MOFs) are materials that confine metallic nanoparticles (NPs) within their pores, providing high functionality and mechanical stability. This study demonstrates that the incorporation of Pd NPs enhances the mechanical stability of MOF materials and proposes a spectroscopic quantity for characterizing densified materials.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Chemical
Deneb Peredo-Mancilla, Camelia Matei Ghimbeu, Benedicte Rety, Bich-Ngoc Ho, David Pino, Cyril Vaulot, Cecile Hort, David Bessieres
Summary: Modifying the surface chemistry of activated carbon through oxidative thermal treatment and ammonia modification enhances its selectivity for CH4/CO2 adsorption. Increased polar surface functionalities significantly improve the selectivity factor of the activated carbon. This study demonstrates an efficient surface modification strategy for the preparation of activated carbon adsorbents with superior separation performance.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Physical
Lucas Faccioni Chanchetti, Bruno Hessel Silva, Jorge Montero, Claudia Zlotea, Yannick Champion, Walter Jose Botta, Guilherme Zepon
Summary: The structure and hydrogen storage properties of three Ti31V26Nb26Zr12M5 multicomponent alloys with M = Fe, Co, and Ni were investigated. The alloys synthesized by arc melting were characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The as-cast ingots showed multi-phase dendritic structures mainly composed of BCC phases and small amounts of C14 Laves phases. Upon hydrogenation, each alloy absorbed around 1.9 H/M at room temperature. XRD analysis of fully hydrogenated samples revealed the formation of multi-phase structures consisting of FCC and C14 hydrides. Thermo Desorption Spectroscopy (TDS) indicated that the hydrogenated alloys exhibited multi-step desorption processes with wide temperature ranges and low onset temperatures. XRD analysis of partially hydrogenated samples suggested the presence of intermediate BCC hydrides. XRD analysis of desorbed samples showed reversible reactions of absorption/desorption: BCC + C14 alloy 4 intermediate BCC hydride + C14 hydride 4 FCC + C14 hydrides. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Adrian Beda, Francois Rabuel, Omar Rahmouni, Mathieu Morcrette, Camelia Matei Ghimbeu
Summary: Spherical hard carbon particles were synthesized from eco-friendly tannin-polyphenol precursors. The solvent and cross-linker had a major effect on material yield and particle shape/size. Mimosa-derived hard carbon exhibited higher graphitic interlayer space and higher reversible capacity.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Nanoscience & Nanotechnology
Louiza Larbi, Romain Wernert, Philippe Fioux, Laurence Croguennec, Laure Monconduit, Camelia Matei Ghimbeu
Summary: Potassium vanadium oxyfluoride phosphate was modified by a carbon coating, leading to improved electrochemical performance. Two methods, chemical vapor deposition (CVD) and pyrolysis of chitosan, were used to create the carbon coating. The CVD method resulted in a more homogeneous coating, while the chitosan method increased the specific surface area and reduced surface functionalities. The carbon-coated material showed enhanced coulombic efficiency and mitigation of electrolyte decomposition, leading to improved performance at high C-rates.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Nichapa Klinthoopthamrong, Sombat Thanawan, Gautier Schrodj, Karine Mougin, Kheng-Lim Goh, Taweechai Amornsakchai
Summary: This study investigated the influence of cellulose nanofiber (CNF) on the mechanical properties of long pineapple leaf fiber (PALF)-reinforced epoxy composites. It was found that the addition of small amounts of CNF had minimal effects on the flexural modulus and strength of the epoxy resin. However, the impact strength of the epoxy increased with 1 wt.% CNF, but decreased with 3 and 5 wt.% CNF. The introduction of PALF significantly increased the flexural modulus and strength of the epoxy, as well as the impact strength. A synergistic effect was observed when both CNF and PALF were present, resulting in a remarkable improvement in impact strength.
Article
Chemistry, Inorganic & Nuclear
Anis Bouzidi, Loic Perriere, Erik Elkaim, Laetitia Laversenne, Vivian Nassif, Gavin Vaughan, Claudia Zlotea
Summary: This study reports the hydrogen sorption properties of a novel bcc high-entropy alloy, Ti0.30V0.25Mn0.10Zr0.10Nb0.25. The alloy can fully absorb hydrogen at room temperature in less than 60 s, with a capacity of 2.0 H/M (2.98 wt.%). The hydrogen absorption reaction occurs in two steps: bcc solid solution <-> bcc monohydride <-> fcc dihydride. The results suggest that tuning the chemical composition of high-entropy alloys may have significant implications for hydrogen sorption properties.
Article
Chemistry, Physical
Tales Ferreira, Nayely Pineda-Romero, Walter Jose Botta, Guilherme Zepon, Claudia Zlotea
Summary: This study presents a strategy to decrease the stability of hydrides formed in BCC TiVNb alloy by adding non-hydride forming elements, Cr and Al. The (TiVNb)100-x(CrAl)x alloys with x = 10, 20, 30, and 40 at.% form major BCC solid solutions with dendritic microstructures. The addition of Cr and Al thermodynamically destabilizes hydride formation, enabling reversible capacity at ambient conditions.
Article
Chemistry, Multidisciplinary
Aneeshma Peter, Benedicte Rety, Cyril Vaulot, Wajdi Heni, Thierry Steinbauer, Camelia Matei Ghimbeu
Summary: The physicochemical properties of activated carbon were investigated to evaluate its potential for adsorbing cyanuric acid. It was found that acidic pH conditions favor the adsorption process. A UV-vis spectroscopy-based method was developed to accurately measure traces of cyanuric acid in water, which can be helpful for research and development purposes. Batch adsorption experiments confirmed that the adsorption mechanism is chemisorption, and it depends on the surface chemistry of activated carbon and the reaction pH.
Article
Chemistry, Physical
Angel Manuel Escamilla-Perez, Adrian Beda, Loic Simonin, May-Line Grapotte, Jean Marc Le-Meins, Camelia Matei Ghimbeu
Summary: The relationship between the properties of hard carbon (HC) and its performance as an anode in sodium-ion batteries (NIBs) was investigated. It was found that the reversible capacity of HC is influenced by the graphitic interlayer spacing and active surface area. The capacity from the plateau region correlates with the interlayer spacing and closed porosity.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Soha Aldroubi, Badre Larhrib, Louiza Larbi, Ibrahim Bou Malham, Camelia Matei Ghimbeu, Laure Monconduit, Ahmad Mehdi, Nicolas Brun
Summary: This study reports the synthesis of boron, nitrogen co-doped carbon materials using original imidazolium salts with the tetraphenylborate anion as precursors. It was demonstrated that the presence of two benzyl groups on the imidazolium cation increased carbonization yield, promoted heteroatom-doping, improved microstructure order, and protected boron atoms from oxidation. The B, N co-doped carbon material prepared from 1,3-bis(benzyl)imidazolium tetraphenylborate exhibited fast-rate capabilities as an anode material for high-power monovalent ion batteries, maintaining 80% of the capacity after 1400 cycles at a high rate (30C) versus Li+/Li.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
W. Liu, F. Morfin, K. Provost, M. Bahri, W. Baaziz, O. Ersen, L. Piccolo, C. Zlotea
Summary: Single-atom catalysts have attracted significant attention due to their unique catalytic properties. In this study, an Ir single-atom catalyst supported on a nitrogen-rich carbon substrate was prepared and found to exhibit substantial activity and high selectivity in the hydrogenation of butadiene. Quantitative operando X-ray absorption spectroscopy revealed that the initial Ir single atoms were coordinated with four light atoms and underwent partial reduction during pre-treatment.
Article
Chemistry, Physical
Bruno Hessel Silva, Claudia Zlotea, Gavin Vaughan, Yannick Champion, Walter Jose Botta, Guilherme Zepon
Summary: Ti-V-Nb-Cr alloys were studied for their hydrogen storage properties using laboratory and synchrotron X-ray diffraction, Pair Distribution Function (PDF) analyses, Transmission Electron Microscopy (TEM), and thermo-desorption analyses (TDS). The results revealed a multi-step hydrogenation process in the alloy, which can be described by models with random atomic distribution. This research is of great significance for developing efficient hydrogen storage materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(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.