Article
Environmental Sciences
Bathula Babu, Bhusankar Talluri, Thirumala Rao Gurugubelli, Jonghoon Kim, Kisoo Yoo
Summary: The nitrogen-annealing environment significantly improves the electrochemical performance of SnO2 quantum dots, leading to higher specific capacitance and photocurrent compared to pristine samples.
Article
Chemistry, Multidisciplinary
Ruiguang Xing, Xiaobin Gong, Xiaoxu Zhuang, Yanan Li, Chaoke Bulin, Xin Ge, Bangwen Zhang
Summary: In this study, a novel nitrogen-doped graphene quantum dot-modified polyaniline (NGQD/PANI) was reported as supercapacitor electrodes through in situ polymerization. Characterization and evaluation indicated that the NGQDs/PANI material exhibited high specific capacitance and cycling stability, making it valuable for energy storage device utilization in future supercapacitor fields.
JOURNAL OF NANOPARTICLE RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Hilal Ahmad, Rais Ahmad Khan, Bon Heun Koo, Ali Alsalme
Summary: In this study, comparative analysis was conducted between electrochemically exfoliated graphene sheets, solvothermally synthesized graphene quantum dots, and acid refluxed carbon nanotubes as energy storage electrode nanomaterial. It was found that solvothermally synthesized graphene quantum dots exhibited superior energy electrode material properties in an alkaline electrolyte solution.
Article
Chemistry, Physical
Wansheng Luo, Wenchao Chen, Hongying Quan, Zhi-Xia Zhang, Yong Zeng, Yunying Wang, Dezhi Chen
Summary: In this study, carbon quantum dots (CQDs) were implanted into NiCo-LDHs nanosheets to construct a carbon quantum dots/NiCo-LDHs heterostructure electrode. This design improved the conductivity and morphological stability of the electrode, leading to enhanced capacitance performance and cycle life. The research provides a new opportunity for the development of high-performance nanocomposites for flexible supercapacitor electrodes.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Maksym Chylii, Liudmila Loghina, Anastasia Kaderavkova, Stanislav Slang, Petr Svec, Jhonatan Rodriguez Pereira, Bozena Frumarova, Dana Cizkova, Ales Bezrouk, Miroslav Vlcek
Summary: This study presents a tunable approach for synthesizing monodisperse, highly photoluminescent ZnSexS1-x and Mn-doped ZnSe0.1S0.9 quantum dots using environmentally friendly and highly reactive thio- and selenoureas. The molar ratios of sulphur and selenium sources were varied to obtain ZnSexS1-x quantum dots with different compositions. Mn-doped ZnSe0.1S0.9 quantum dots were successfully synthesized using a low-cost hot-injection method, and their optical properties were studied.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Biochemistry & Molecular Biology
M. Chandra Sekhar, Nadavala Siva Kumar, Mohammad Asif, Surya Veerendra Prabhakar Vattikuti, Jaesool Shim
Summary: An innovative 2D/0D g-C3N4/CeO2 nanostructure was synthesized using a simple precursor decomposition process. The nanostructure exhibited a capacitance of 202.5 F/g, remarkable rate capability, and stability, surpassing the performance of g-C3N4 electrode. The combination of g-C3N4 and CeO2 quantum dots also enabled an asymmetric device with the highest energy density (9.25 Wh/kg) and power density (900 W/kg).
Review
Materials Science, Multidisciplinary
Noura Zahir, Pierre Magri, Wen Luo, Jean-Jacques Gaumet, Philippe Pierrat
Summary: Graphene quantum dots (GQDs) are nanofragments of graphene with outstanding properties such as high conductivity, high surface area, and good solubility, making them widely applicable in various fields. Recent research focuses on introducing GQDs in batteries, supercapacitors, and micro-supercapacitors, showing excellent electrochemical performance and proposing future optimization strategies.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Fitri Aulia Permatasari, Muhammad Alief Irham, Satria Zulkarnaen Bisri, Ferry Iskandar
Summary: The translated paragraph introduces carbon-based quantum dots (C-QDs) as materials for supercapacitors, with superior optoelectronic properties and great application potential, in either bare electrode or composite form to enhance supercapacitor performances. The review also highlights the latest progress and application prospects of C-QDs in the field of supercapacitors.
Article
Chemistry, Multidisciplinary
Liangrui Lv, Juanjuan Hu, Qingqing Chen, Mingming Xu, Chunyang Jing, Xiaoying Wang
Summary: A switchable electrochemical hairpin-aptasensor has been established for the detection of OTA in food samples. The sensor utilizes a hairpin-DNA as a signal switch and combines gold nanospheres and multiwalled carbon nanotubes to establish a support interface. Conjugated polymer-nanoparticle composites are used to label report DNA, forming a signal probe. The sensor offers a low detection limit and a wide monitoring range.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Hoanh Van Ngo, Hung Tran Nguyen, Hieu Trung Le, Thanh Huu Le, Thien Tri Vu, Kien Trung Pham, Thinh Xuan Phung
Summary: This article investigates the design and manufacturing of composite electrode materials for supercapacitors. The rGO/CoFe2O4 composite material is produced by growing cobalt ferrite particles on the surface of rGO using a simple and efficient thermal reduction technique. The addition of cobalt ferrite significantly improves the electrochemical properties of rGO, making rGO/CoFe2O4 composites potential electrode materials for supercapacitors in the future.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Energy & Fuels
Mahasweta Chatterjee, Samik Saha, Tuli Chatterjee, Sachindranath Das, Swapan Kumar Pradhan
Summary: Monoclinic amorphous Ni1-xMnxWO4 (x = 0.00, 0.02) compounds were successfully synthesized by hydrothermal technique. Mn-ion incorporation improves the electrochemical performance and reduces particle size, resulting in enhanced specific capacitance and specific surface area.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Pukhrambam Sushma Devi, Sagolsem Nonganbi Chanu, Prajnamita Dasgupta, Bhabani Sankar Swain, Bibhu Prasad Swain
Summary: In this study, rGO/PEDOT:PSS/PVP composite films with various rGO contents (0-25wt%) were synthesized, and their properties were characterized using multiple techniques. The results showed that the rGO content had an impact on the microstructure, optical properties, and electrochemical performance of the composite films.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Energy & Fuels
Bhanita Goswami, Chayanika Das, Debajyoti Mahanta
Summary: This study investigated the effect of organic dyes on the electrochemical performance of Fe3O4-polypyrrole nanocomposite in supercapacitor applications. Results showed that adsorption of organic dyes significantly improved the cyclic stability of the nanocomposite as electrode material.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Elumalai Dhandapani, Kavitha kandiah, R. Vasudevan, R. Ramesh, Navaneethan Duraisamy
Summary: A binder-free PIn/CDs thin-film/layer electrode was synthesized using a hybrid electrospray method. The PIn/CDs demonstrated excellent electrochemical properties and cyclability due to the synergistic effect of PIn and CDs. The CDs provided an electron allocation pathway and contributed to the high specific surface area of the electrode. The PIn/CDs thin-film showed superior performance as an efficient electrode for supercapacitor application.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Rahul Singhal, Bhagirath Saini, Monica Kiehnle-Benitez, Thomas Sadowski, Christine Broadbridge, Jules Scanley, Peter K. LeMaire, Rakesh K. Sharma
Summary: Composites of MnO2/MWCNTs were prepared using a one-pot hydrothermal method, and their physical characteristics and electrochemical performance were evaluated. The results showed that MnO2 was uniformly entangled with MWCNTs, and the composite materials exhibited high specific capacitance at a current density of 1 A/g.
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.