Article
Chemistry, Multidisciplinary
Xueying Chang, Maher F. El-Kady, Ailun Huang, Cheng-Wei Lin, Stephanie Aguilar, Mackenzie Anderson, Jason Zi Jie Zhu, Richard B. Kaner
Summary: By covalently grafting TANI onto 3D graphene networks, a hybrid electrode material was designed to significantly enhance the charge-discharge cycling stability of PANI-based supercapacitors.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Chui-Yi Kung, Tzong-Liu Wang, Hung-Yin Lin, Chien-Hsin Yang
Summary: In this study, a robust high-performance polyaniline-modified graphene electrode was successfully used in assembling a supercapacitor, showing high specific capacitance values and excellent cycling performance.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Anjana Baby, Sachin Sunny, J. Vigneshwaran, Sibi Abraham, Sujin Jose, Waseem Sharaf Saeed, Mohan Reddy Pallavolu, Jayesh Cherusseri, Sreeja Puthenveetil Balakrishnan
Summary: Electronically conducting polymers (ECPs)/carbon nanomaterial-based polyaniline electrodes have attracted significant interest in the field of supercapacitors due to their exceptional electrochemical properties. In this study, a PANI-grafted graphene oxide (GO)-azopyridine (Azo) nanocomposite was synthesized and utilized as electrodes for fabricating supercapacitors. The nanocomposite exhibited a high gravimetric capacitance of 426 F g(-1) and excellent cycling stability. An asymmetric supercapacitor constructed with PANI/GO-Azo as the positive electrode delivered a high energy density of 12.45 W h kg(-1) with a power density of 274.9 W kg(-1). These findings highlight the promising potential of the PANI/GO-Azo nanocomposite electrode for next-generation supercapacitors.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Ozlem Budak, Ozlem Uguz, Atif Koca
Summary: In this study, a one-step electrodeposition method was used to fabricate binder free nickel cobalt oxide and nickel cobalt oxide reduced graphene oxide composite nanosheets, which exhibited excellent electrochemical performance with high specific capacitance and superior stability. Moreover, the potential of the NCO-rGO composite nanosheets in practical applications was demonstrated by constructing an asymmetric supercapacitor.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Marwa Ben Hadj Said, Khaled Charradi, Zakarya Ahmed, Hubert Cachet, Catherine Debiemme-Chouvy, Qana A. Alsulami, Sami Boufi, Sherif M. A. S. Keshk, Radhouane Chtourou
Summary: A ternary composite electrode consisting of graphene oxide, cellulose hydrogel, and polyaniline was synthesized and electrochemically characterized. It showed significantly enhanced cycling stability and improved capacitance, indicating a synergistic effect of cellulose hydrogel on PANi-GO.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Xudong Fu, Jiexin Wen, Chunguang Xia, Qingting Liu, Rong Zhang, Shengfei Hu
Summary: Nafion-doped polyaniline/graphene oxide composites were synthesized and used as electrode materials for flexible supercapacitors based on Nafion membrane. Nafion doping improved the utilization rate and electrochemical surface area of polyaniline, while graphene oxide enhanced its electrochemical stability. The flexible supercapacitors showed high specific capacitances and good cycling stability.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Zhaokun Wang, Licong Jiang, Hongwei Pan, Yongyin Cui, Chengzhong Zong
Summary: In this study, resveratrol was used as a green reducing agent to prepare reduced graphene oxide with excellent electrochemical performance. The composite exhibited high specific capacitance, stable cycle performance, and ultrahigh-rate performance, making it a promising material for supercapacitors.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Analytical
Shixing Chao, Yifeng Zhao, Yuanjie Zhu, Weiqiang Zhou, Danhua Zhu, Yanmei Liang, Danqin Li, Yanli Wu, Yao He, Jingkun Xu, Peipei Liu
Summary: The immobilization of capsaicin molecules on the graphene surface improves the capacitance performance of nitrogen-doped graphene through non-covalent modification. The resulting Cap-functionalized NG shows high capacitance and excellent cycling life, making it a promising material for energy storage. In addition, density functional theory calculations provide insights into the mechanism of pseudocapacitance and the adsorption configuration of Cap on NG.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Automation & Control Systems
Yi-Fang Hung, Chia Cheng, Chun-Kai Huang, Chii-Rong Yang, Shih-Feng Tseng
Summary: This study investigated the electrochemical reduction of graphene oxide powders with different bias voltages and treatment times, demonstrating that using a bias of -17.5 V for 2 hours produced the best reduced GO powders. The resulting rGO showed increased carbon to oxygen ratios, enhanced electrical conductivity, and improved specific capacitance, making them suitable for high-performance supercapacitors.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Eleni C. Vermisoglou, Petr Jakubec, Aristides Bakandritsos, Vojtech Kupka, Martin Pykal, Veronika Sedajova, Jakub Vlcek, Ondrej Tomanec, Magdalena Scheibe, Radek Zboril, Michal Otyepka
Summary: By employing fluorographene chemistry, arginine moiety was covalently grafted onto graphene, resulting in high capacitance and long cycling life, offering new possibilities in the application of supercapacitors.
Article
Chemistry, Physical
Yingji Sang, Li Bai, Biao Zuo, Lei Dong, Xinping Wang, Wei-Shi Li, Fu-Gang Zhao
Summary: The combination of commercial graphite fluoride and p-phenylenediamine for functionalization and in situ polymerization resulted in graphene/polyaniline nanocomposites with high capacitive performances and stability. The as-prepared G-pPDA-PANI triads demonstrated outstanding energy and power densities in bendable all-solid-state supercapacitors, showcasing superior rate capability, cycling stability, and mechanical flexibility.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Multidisciplinary Sciences
Naser Namdar, Foad Ghasemi, Zeinab Sanaee
Summary: Graphene-based supercapacitors demonstrate exceptional energy storage capacity and stability, and a recent study introduced a fast and simple method to prepare rGO-based supercapacitors with capacitance up to 10.2 F/cm³, suitable for practical energy storage applications.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Physical
Ba Trung Ho, TaeGyeong Lim, Myeong Hee Jeong, Ji Won Suk
Summary: This study demonstrates the fabrication of high-performance flexible supercapacitors using activated graphene embedded in graphene fibers. The rGO/AG fibers exhibit excellent specific areal capacitance and cycling performance in a PVA/LiCl gel electrolyte, showing great potential for developing flexible FSCs.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Zeynep Orhan, Sakir Aydogan, Hulya Ozturk Dogan
Summary: In this study, cobalt chromite/electro-reduced graphene oxide (CCO/ERGO) nanocomposites were fabricated on nickel foam electrode by a two-step synthesis method. The analytical and morphological structure of the CCO/ERGO nanocomposite was characterized using various techniques. The CCO/ERGO nanocomposite exhibited high specific capacitance and showed potential for future-generation supercapacitors applications.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Michal Blaha, Milan Bousa, Vaclav Vales, Otakar Frank, Martin Kalbac
Summary: The study successfully synthesized a graphene/polyaniline heterostructure with excellent electrochemical performance, which can be used as electrode materials for supercapacitors. After cyclic testing, the material showed a capacitance retention rate of +/-1%, one order of magnitude higher than the capacitance of pristine graphene.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biophysics
Ana M. Ulloa-Gomez, Alec Lucas, Abbey Koneru, Amit Barui, Lia Stanciu
Summary: We have developed a novel aptasensor that can detect mercury (Hg2+) through both colorimetric and electrochemical methods. This device is portable, rapid, and versatile, and can detect Hg2+ down to 0.01 ppm. It shows high selectivity against other heavy metals and offers a dual detection platform with quantification and multiplexing capabilities.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Biophysics
Ana M. Ulloa-Gomez, Alejandra Agredo, Alec Lucas, Sandeep B. Somvanshi, Lia Stanciu
Summary: We developed an aptasensing platform for the detection of cTnT in the immediate and early phases of AMI. The platform uses a microfluidic paper-based analytical device modified with gold-decorated polystyrene microparticles functionalized with a highly specific cTnT aptamer. The platform showed high selectivity and stability, and provides a label-free, smartphone-based detection method with shorter processing time compared to traditional methods.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Nanoscience & Nanotechnology
Ulisses Heredia-Rivera, Venkat Kasi, Akshay Krishnakumar, Sachin Kadian, Amit Kumar Barui, Zihao He, Haiyan Wang, Lia Stanciu, Rahim Rahimi
Summary: Cold atmospheric plasma-assisted deposition technology is a solvent-free and scalable method for in situ polymerization and direct deposition of conductive polypyrrole-silver nanocomposites. By adjusting the precursor composition, PPy-Ag nanocomposite films with tunable degrees of polymerization and Ag nanoparticle loading can be fabricated.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Adil Saleem, He Zhu, Muhammad K. Majeed, Rashid Iqbal, Bushra Jabar, Arshad Hussain, M. Zeeshan Ashfaq, Muhammad Ahmad, Sajid Rauf, Jean Pierre Mwizerwa, Jun Shen, Qi Liu
Summary: Current commercial nickel (Ni)-rich cathodes for high-energy lithium (Li) batteries often contain toxic and expensive Mn/Co, which causes issues like transition-metal dissolution and surface degradation. This study compares a Mn/Co-free Ni-rich Li-Ni0.94Fe0.05Cu0.01O2 (SCNFCu) cathode with acceptable electrochemical performance to a Mn/Co-containing cathode. Despite slightly lower discharge capacity, SCNFCu cathode maintains 77% of its capacity after 600 cycles, outperforming the high-Ni LiNi0.9Mn0.05Co0.05O2 (SCNMC) cathode (66%). Fe/Cu ions in the SCNFCu cathode reduce structural disintegration, undesirable reactions, and Li loss. This discovery opens up new possibilities for developing Mn/Co-free cathode materials for next-generation high-energy Li batteries with the flexibility and scalability of SCNFCu.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Lina Wang, Lei Shi, Qi Liu, Yalan Huang, Wensheng Yan, Xiao Liang, Xiao Zhao, Hui Chen, Xiaoxin Zou
Summary: We report the synthesis and characterization of honeycomb layered strontium iridate (SrIr2O6) as an efficient electrocatalyst for the acidic oxygen evolution reaction (OER) with robust structural stability. Unlike most iridate catalysts, SrIr2O6 can maintain its crystalline structure during OER instead of forming an amorphous active phase. The edges of SrIr2O6 demonstrate high catalytic activity for OER following the adsorbate evolution mechanism, while the basal planes are catalytically inert. SrIr2O6 exhibits about 10-fold higher intrinsic activity than the benchmark catalyst IrO(2), with minimal iridium leaching (approximately 0.03%) and long-term catalytic stability for over 300 hours.
Article
Chemistry, Physical
Guoyu Ding, Meng Yao, Jinhan Li, Tingting Yang, Yudong Zhang, Kuiming Liu, Xinhui Huang, Zhonghan Wu, Jiayu Chen, Ziyan Wu, Jiayong Du, Changru Rong, Qi Liu, Wei Zhang, Fangyi Cheng
Summary: In this study, nonstoichiometric Li1+xNi1-xO2 with submicron particle size and superior rate performance was successfully synthesized by molten salt-assisted synthesis combined with a Li-refeeding strategy. The single-crystalline Li1.045Ni0.955O2 exhibited high specific capacity, considerable rate capability, and initial Coulombic efficiency, outperforming near stoichiometric LiNiO2. This study highlights the significance of molten salt-assisted synthesis and Li-refeeding modification in upgrading Ni-based layered oxide cathode materials for advanced Li-ion batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Applied
Yu Tang, Jun Zhao, He Zhu, Jincan Ren, Wei Wang, Yongjin Fang, Zhiyong Huang, Zijia Yin, Yalan Huang, Binghao Zhang, Tingting Yang, Tianyi Li, Leighanne C. Gallington, Si Lan, Yang Ren, Qi Liu
Summary: Experiments combined with density functional theory calculations demonstrate that the co-doping of Mg2+ and Gd3+ can mitigate the kinetic limitations of high-voltage LiCoO2 cathode, improving the diffusion mobility of lithium ions and enabling a more homogeneous charge/discharge process. The doped LCO exhibits extreme fast charging capability and high-rate capacity retention when used with a Li metal anode.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Xiaopeng Tang, Xin Lai, Qi Liu, Yuejiu Zheng, Yuanqiang Zhou, Yunjie Ma, Furong Gao
Summary: Onboard measuring the electrochemical impedance spectroscopy (EIS) for lithium-ion batteries has been a challenging issue for the development of technologies like portable electronics and electric vehicles. In this study, we propose a fast and accurate EIS predicting system by combining the fractional-order electric circuit model with a median-filtered neural network machine learning. Our method allows using size-varying input data sampled at a rate down to 10 Hz and unlocks opportunities to detect the battery's internal electrochemical characteristics onboard via low-cost embedded sensors.
Article
Chemistry, Physical
Jincan Ren, Yu Tang, Weibao Li, Dong He, He Zhu, Xingyu Wang, Si Lan, Zijia Yin, Tingting Yang, Zhaowen Bai, Yang Ren, Xiangheng Xiao, Qi Liu
Summary: A synergetic strategy of La, Mg co-doping and LiAlO2@Al2O3 surface coating is designed to enhance the performance of LiCoO2 (CM-LCO) cathode material under extreme temperatures. CM-LCO exhibits excellent temperature adaptability and remarkable electrochemical performance, as well as excellent cycle stability and high-rate performance. The synergistic effects of this co-modification strategy are demonstrated by investigating the electrochemical reaction kinetics and structure evolution of CM-LCO, providing a promising strategy for the application of high-voltage LCO in a wide temperature range.
Article
Chemistry, Multidisciplinary
Boling Liu, Dong He, Zunjian Ke, Hongbo Wang, Chongyang Tang, Qi Zhang, Hang Xu, Menghua Yang, Yafei Yang, Qi Liu, Xiangheng Xiao
Summary: The catalytic performance of CuNi alloy ultrafine-nano-particles synthesized through electrodeposition in the acetonitrile reduction reaction (ACNRR) has been systematically studied. It is found that CuNi alloy achieves a high ethylamine Faradic efficiency (FE) and good stability at high current density. Furthermore, CuNi alloy can also hydrogenate acetonitrile in the presence of other organics, showing high ethylamine FE.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Physical
Tianyi Song, Chenchen Wang, Lei Kang, Wenjiao Yao, Heyi Wang, Huige Chen, Qi Liu, Yang Lu, Zhiqiang Guan, Anquan Zhu, Tianxing Kang, Yongbing Tang, Chun-Sing Lee
Summary: In this study, a potential Na+ conductor Na2SeO4 was discovered to form a heterostructure P3-Na0.45Ni0.2Mn0.8O2/Na2SeO4, which effectively promotes Na+ diffusion and suppresses P3-O3 phase transitions. This heterostructure exhibits excellent rate performance and cycling stability.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Qiyu Liu, Haozhe Zhang, Jinhao Xie, Fan Yang, Zujin Yang, Xiaoqing Liu, Haibo Wu, Qi Liu, Xihong Lu
Summary: The coordination environment of antimony (Sb) is regulated by introducing high-affinity chloride ligands, which enables high-kinetic and reversible Sb stripping/plating behavior.
Article
Energy & Fuels
Dong Luo, He Zhu, Yi Xia, Zijia Yin, Yan Qin, Tianyi Li, Qinghua Zhang, Lin Gu, Yong Peng, Junwei Zhang, Kamila M. Wiaderek, Yalan Huang, Tingting Yang, Yu Tang, Si Lan, Yang Ren, Wenquan Lu, Christopher M. Wolverton, Qi Liu
Summary: A composite structure of lithium-rich materials can effectively mitigate the problem of voltage decay during cycling, improving the performance of Li-ion batteries.
Review
Nanoscience & Nanotechnology
Tingting Yang, Yubin Niu, Qi Liu, Maowen Xu
Summary: Sulfur and selenium have gained increasing attention in energy storage systems due to their high theoretical specific gravimetric and volumetric capacities. As lithium resources become more scarce, secondary batteries utilizing sulfur and selenium coupled with other alkali metal/alkaline earth metals (e.g. Na, K, Mg) are expected to play a vital role in future production and human life. The design of the cathode, as an important component in metal-S/Se batteries, remains a challenging issue due to volume expansion, poor conductivity, and the shuttle effect. In this review, various host materials for S and Se are discussed, highlighting the widespread use of carbonaceous materials and the growing popularity of polar materials in metal-S/Se batteries. The aim is to provide valuable reference and guidance for the sustainable development of metal-S/Se batteries based on previous research experiences.
NANO MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Xi Chen, Yu Tang, Zhibo Zhang, Muhammad Ahmad, Iftikhar Hussain, Tianyi Li, Si Lan, Kaili Zhang, Qi Liu
Summary: In this study, a strategy to construct a stable Li-conductive layer on the surface of single-crystalline Ni-rich cathode particles is reported, which significantly improves the Li-ion diffusion coefficients and suppresses surface phase transformation. The improved kinetics result in good durability and excellent rate capability of the single-crystalline cathode.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
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.
