Article
Environmental Sciences
Mohamad M. Ayad, Mona E. Abdelghafar, Nagy L. Torad, Yusuke Yamauchi, Wael A. Amer
Summary: A method for the eco-friendly preparation of carbon quantum dots (CQDs) using hydrothermal treatment of laurel leaves is demonstrated. The optical and structural characteristics of the prepared CQDs are investigated. A quartz crystal microbalance (QCM) sensor modified with CQDs is capable of detecting formaldehyde vapors, and the sensing properties are investigated. The detection of formaldehyde in the presence of humidity and the adsorption kinetics of various VOCs vapors are discussed.
Article
Engineering, Electrical & Electronic
Luyu Wang, Jia Song, Yuhang Wu, Chunyang Yu
Summary: Developing a long-term stable gaseous formaldehyde (HCHO) sensor is urgent. The modified Titanium dioxide (TiO2) nanorods on the Quartz Crystal Microbalance (QCM) sensing platform demonstrate excellent HCHO detection capabilities with a low detection limit of 50 ppb at normal temperature. The sensor also exhibits short response and recovery times of 10 s and 13 s, respectively, and satisfactory selectivity and short-term repeatability. Furthermore, the molecular formula of hydrate HCHO (HCHO•βH2O) in real air containing humidity is elucidated as HCHO•2.03-2.35H2O within a relative humidity range of 50-90%.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Analytical
Zhanjia Kang, Dongzhi Zhang, Tingting Li, Xiaohua Liu, Xiaoshuang Song
Summary: This paper presents a quartz crystal microbalance sensor based on SnO2 NFs/PDA composite with high sensitivity and selectivity to formaldehyde gas. The sensor exhibited excellent sensing characteristics over a wide range of formaldehyde concentration, including high sensitivity, short response/recovery times, and high linearity. The adsorption mechanism of formaldehyde gas was attributed to hydrogen bonding and aldehyde ammonia Schiff base interactions.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Electrical & Electronic
Zhiqiong Li, Baohui Zhang, Chen Fu, Ran Tao, Honglang Li, Jingting Luo
Summary: MXenes are attractive nanomaterials for humidity-sensitive materials due to their active sites, surface chemistry, and stability. Surface modification of Ti3C2Tx MXene through sulfurization enhances its humidity sensing performance, with the sulfurized MXene QCM sensor exhibiting high humidity sensitivity and ultrafast response and recovery time. It also shows a 20 times higher water absorption ratio compared to the as-synthesized MXene, indicating its potential for high-performance and fast humidity sensors.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Seydiren Seeneevassen, Mohammad Ali Mohammadzadeh Kashan, Yun Mun Lim, Narayanan Ramakrishnan
Summary: We propose a novel ultraviolet (UVA and UVC) sensing technique based on changes in parallel resonance frequency (f(p)) of a ZnO film-coated quartz crystal microbalance (QCM). By measuring the changes in impedance and frequency, we can detect UVA and UVC exposure. The rate of change in f(p) values within the first 10 seconds of measurement shows linear characteristics and allows for the detection of different intensities. The proposed method has the potential for broad industrial and domestic applications where UV radiation is crucial, such as water purification and disinfection.
IEEE SENSORS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Xinglin Yu, Xiangdong Chen, Xiang Yu, Xinpeng Chen, Xing Ding
Summary: This work introduces a quartz crystal microbalance (QCM) humidity sensor prepared by a one-step method based on pencil drawing, showing excellent stability and long-term performance, as well as rapid response and recovery time.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2021)
Article
Chemistry, Physical
Pengjia Qi, Ziwei Xu, Tingting Zhou, Tong Zhang, Hongran Zhao
Summary: Chitosan-functionalized mesoporous silica MCM-41 composite materials were prepared which exhibited improved sensitivity and reliability in QCM sensors compared to individual chitosan and MCM-41 sensors. The optimal sensor showed excellent properties such as negligible humidity hysteresis, short response and recovery times, and good long-term stability. The adsorption mechanism of water molecules on the sensitive films was investigated using Langmuir adsorption isotherm model and Gibbs free energy.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Review
Chemistry, Analytical
Kaimin Wu, Feizhi Kong, Jingjing Zhang, Ying Tang, Yao Chen, Long Chao, Libo Nie, Zhao Huang
Summary: Single-nucleotide polymorphisms (SNPs) are the most common form of genetic variation in the human genome, and are closely related to individual differences. SNP detection with simple preparation and operational procedures, high affinity and specificity, and cost-effectiveness has been a challenge. This review provides an overview on improvements for SNP biosensing based on fluorescent and electrochemical methods, and presents the advantages, disadvantages, and challenges of each method.
Article
Engineering, Electrical & Electronic
Ilia Chiniforooshan Esfahani, Hongwei Sun
Summary: The micropillar-enhanced QCM viscosity measurement device developed in this work achieves ultra-sensitive viscosity measurement of a sample droplet by utilizing the coupled vibration between micropillars and quartz substrate.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Engineering, Electrical & Electronic
Kun Tang, Xiangdong Chen, Xing Ding, Xiang Yu, Fang Liu, Jiaqi Lu
Summary: Water seepage of building walls is a common problem, and the lack of early detection methods often makes it worse. To solve this, an ultrasensitive QCM humidity sensor based on fullerenol-assisted dispersion of Nafion/MWCNTs composites is proposed. The sensor shows significantly improved humidity sensing properties due to the uniform dispersion of MWCNTs in Nafion with the assistance of fullerenol, which enhances water molecule diffusion and enables early detection of water seepage in building walls by monitoring air humidity changes.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Analytical
Runlong Li, Yu Fan, Zhiheng Ma, Dan Zhang, Yiming Liu, Jiaqiang Xu
Summary: A 2D ultrathin MXene nanosheet was prepared and utilized as a sensitive film for constructing a humidity sensor with high sensitivity and stability. The enhanced humidity response mechanism of MXene nanosheets was explored through DFT calculations and experimental verification.
Article
Chemistry, Multidisciplinary
Zhiheng Ma, Tongwei Yuan, Yu Fan, Yang Chen, Yueling Bai, Zhixuan Cheng, Jiaqiang Xu
Summary: The capture and separation of CO2 is crucial for addressing global warming. In this study, a new method using QCM was proposed to extract the CO2 adsorption enthalpy on MOFs, and its reliability and versatility were demonstrated through experiments.
Article
Chemistry, Physical
Canan Armutcu, Tunca Karasu, Sena Piskin, Erdogan Ozguer, Lokman Uzun
Summary: In this study, a Quartz Crystal Microbalance (QCM) sensor was used to monitor TNT in aqueous solution in real-time, and a method to detect TNT from vapor phase was also developed. The sensor achieved selective detection of TNT by attaching TNT peptide aptamer on the gold surface of QCM sensor. The results showed that the sensor had excellent selectivity and sensitivity.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Jianjian Qiu, Dongmei Ke, Hancui Lin, Yilin Yu, Qunhao Zheng, Hui Li, Hongying Zheng, Lingyun Liu, Jiancheng Li
Summary: A QCM-based 2-PEA gas sensor was developed using aldehyde functionalized mesoporous carbon as the sensing material, demonstrating improved sensitivity and selectivity towards 2-PEA vapor. The high concentration of active sites and the presence of the -CHO group in FDU-15 were found to play crucial roles in the adsorption and response to 2-PEA.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Analytical
Qiao Chen, Yao Yao, Xian-he Huang, Dong Liu, Kun-lei Mao
Summary: This paper proposes a new method using an interdigital electrode and a quartz crystal microbalance to improve the sensitivity of humidity sensors. By using cellulose nanocrystals as humidity-sensitive materials, the experimental results demonstrate high sensitivity and stability of the sensor.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Applied
Mohamad M. Ayad, Nagy L. Torad, Ahmed Abu El-Nasr, Wael A. Amer
Summary: A scalable route to encapsulate Pt and Ag nanoparticles homogeneously inside amine-functionalized KIT-6 mesochannels was demonstrated as heterogeneous mesoporous catalysts. The catalysts with small-sized NPs of approximately 6.0 and 3.0 nm showed high catalytic efficiency and good reusability. Various reaction parameters were studied to understand the catalytic performance of the mesoporous catalysts.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Chemistry, Physical
Miharu Eguchi, Muxina Konarova, Nagy L. Torad, Te-An Chang, Dun-Yen Kang, Joe Shapter, Yusuke Yamauchi
Summary: The gas barrier film, made from water and layered aluminosilicates, exhibits moderate permeance due to capillary flow and high adhesion. It is particularly effective in preserving fresh produce with low respiration rates, blocking oxygen transfer and microorganisms, and preventing gas leakage by tightly adhering to the produce surface.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Applied
Eslam Salama, Ali Hamdy, Hassan S. Hassan, Wael A. Amer, El-Zeiny M. Ebeid, Mona Ossman, Marwa F. Elkady
Summary: In this study, the adsorption performance of Zn-adeninate bio-MOF as an adsorbent for both anionic and cationic dyes was investigated. The results showed that the Zn-adeninate bio-MOF had a significant surface area and pore volume, making it an effective material for the removal of dyes from polluted water.
ADSORPTION SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Mohamad M. Ayad, Mona E. Abdelghafar, Nagy L. Torad, Yusuke Yamauchi, Wael A. Amer
Summary: A method for the eco-friendly preparation of carbon quantum dots (CQDs) using hydrothermal treatment of laurel leaves is demonstrated. The optical and structural characteristics of the prepared CQDs are investigated. A quartz crystal microbalance (QCM) sensor modified with CQDs is capable of detecting formaldehyde vapors, and the sensing properties are investigated. The detection of formaldehyde in the presence of humidity and the adsorption kinetics of various VOCs vapors are discussed.
Article
Engineering, Environmental
Silvia Chowdhury, Nagy L. Torad, Aditya Ashok, Gilang Gumilar, Watcharop Chaikittisilp, Ruijing Xin, Ping Cheng, Md Ikram Ul Hoque, Md Abdul Wahab, Mohammad Rezaul Karim, Brian Yuliarto, Md Shahriar Hossain, Yusuke Yamauchi, Yusuf Valentino Kaneti
Summary: This work presents a template- and etching-free approach to fabricate hollow bimetallic nickel-cobalt benzenetricarboxylic acid hexagonal nanoplates. These nanoplates exhibit high sensitivity and stability in the sensing of ammonia, and have faster adsorption rates compared to other nano materials. The hollow two-dimensional structure and bimetallic composition present in these nanoplates contribute to their excellent sensing performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Reda E. El-Shater, Ahmed S. Atlam, M. K. Elnimr, S. T. Assar, D. I. Tishkevich, T. I. Zubar, S. V. Trukhanov, A. V. Trukhanov, Di Zhou, Moustafa A. Darwish
Summary: Multiferroic composite materials have been widely used in various applications. In this study, multiferroic composite materials of Ni0.5Zn0.5Fe2O4 and BaTiO3 were prepared using co-precipitation synthesis route. The samples were characterized and their electrical and magnetic properties were studied. It was found that the prepared samples showed good electrical properties and magnetic properties when an appropriate amount of Ni0.5Zn0.5Fe2O4 was added.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Nagy L. Torad, Yuta Tsuji, Azhar Alowasheeir, Masako Momotake, Kazuki Okazawa, Kazunari Yoshizawa, Michio Matsumoto, Masafumi Yamato, Yusuke Yamauchi, Miharu Eguchi
Summary: To increase chemical reaction rates, general solutions include increasing the concentration/temperature and introducing catalysts. In this study, the rate constant of an electrophilic metal coordination reaction is accelerated 23-fold on the surface of layered aluminosilicate (LAS), where the reaction substrate (ligand molecule) induces dielectric polarization owing to the polar and anionic surface. This unique method to accelerate the chemical reaction is expected to expand the range of utilization of LASs, which are chemically inert, abundant, and environmentally friendly. The concept is also applicable to other metal oxides which have polar surfaces, which will be useful for various chemical reactions in the future.
Article
Chemistry, Physical
Mohammed G. Kotp, Nagy L. Torad, Johann Luder, Ahmed A. M. El-Amir, Watcharop Chaikittisilp, Yusuke Yamauchi, Ahmed F. M. EL-Mahdy
Summary: In this study, two novel phenazine-based CMPs, TPT-QP CMPs and Py-QP CMPs, were successfully synthesized through the Suzuki coupling condensation reaction. These CMPs have high surface areas and good thermal stabilities. TPT-QP CMPs, in particular, have abundant hydrogen-bonding sites and demonstrate high sensitivity and selectivity in detecting sub-ppm levels of volatile acidic hydrocarbons. Additionally, a quartz crystal microbalance (QCM) sensor based on TPT-QP CMPs was fabricated for the first time, showing excellent performance in detecting trace amounts of formaldehyde.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Multidisciplinary Sciences
Enas H. El-Ghazzawy, Hesham M. H. Zakaly, Albandari W. Alrowaily, Samia A. Saafan, Antoaneta Ene, Nagat M. Abo-aita, Moustafa A. Darwish, Di Zhou, Ahmed S. Atlam
Summary: This study presents a comprehensive comparative analysis of the electrical conductivity and dielectric relaxation of nanostructured MgFe2O4 and its composites with PEG. The composites exhibit stable electrical behavior and low dielectric loss, making them promising candidates for high-frequency switching applications and microelectronic devices.
Article
Spectroscopy
Nermeen S. Hafez, Wael A. Amer, Ehab A. Okba, Mahmoud A. S. Sakr, Hussein H. Alganzory, El-Zeiny M. Ebeid
Summary: This study reports two cyanine derivatives-based ClO- sensors prepared by solvent-free microwave synthesis, which exhibit high sensitivity and selectivity to ClO- and show a noticeable color change visible to the naked eye. The sensors can detect ClO- without interference from other potential water pollutants with low detection limits. They can be used for field and domestic detection of ClO- in tap water treatment installations and have strong detection sensitivity when using the quartz crystal microbalance technique. Quantum chemical studies support the findings and explain the sensing mechanism as the formation of radical cations upon ClO- oxidation of the cyanine sensors.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Mohammed G. Kotp, Nagy L. Torad, Hiroki Nara, Watcharop Chaikittisilp, Jungmok You, Yusuke Yamauchi, Ahmed F. M. EL-Mahdy, Shiao-Wei Kuo
Summary: In this study, we report the rational syntheses of three conjugated microporous polymers (CMPs) with different thiophene contents, topologies, and molecular structures. These CMPs show spherical morphologies, tunable pore volumes, and high thermal and chemical stabilities. Among them, the TPP-ThZ CMP exhibits the highest adsorption capacity for Cr(VI), surpassing other recently reported adsorbents.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Esraa S. Elmorsy, Wael A. Amer, Ayman Mahrous, Mohamad M. Ayad
Summary: A novel and stable composite material was successfully synthesized and its structural and morphological properties were investigated. The composite exhibited higher light absorption and charge separation capabilities under visible light irradiation, resulting in significant photocatalytic degradation of methylene blue. The composite also maintained its activity after multiple cycles.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Eslam Salama, Mohamed Ghanim, Hassan Shokry Hassan, Wael A. Amer, El-Zeiny M. Ebeid, Ahmed H. El-Shazly, Mona Ossman, Marwa F. Elkady
Summary: In this study, a cost-effective powdered bio-metal organic framework was developed as an efficient adsorbent for a specific organic dye, showing large surface area and mesopore volume, as well as good chemical inertness and mechanical stability.
Article
Engineering, Environmental
Nagy L. Torad, Ramon Kanai, Kohei Ishikawa, Ryuichi Kamimura, Tohru Kawamoto, Hisashi Tanaka
Summary: This study presents a new monitoring method for the rapid assessment and quantification of low levels of radioactive cesium in Fukushima seawater. The method utilizes Prussian blue analogue nanoparticle slurries to achieve high recovery of cesium in the presence of competing ions.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(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.
