Article
Engineering, Electrical & Electronic
Munira Sultana, Mohammad Jellur Rahman, M. S. Bashar
Summary: A microwave irradiation-assisted single-step method using a customized domestic microwave oven has been employed to synthesize ZnO nanorods with hexagonal prismatic shape. The effects of process parameters such as precursor reagents, synthesis time, and precursor concentration have been investigated. The study focuses on the morphological, structural, and optical properties of the ZnO nanorods, analyzed by scanning electron microscopy, powder x-ray diffraction, and UV-Vis spectroscopy. It is observed that the average diameter and length of the ZnO nanorods vary depending on the precursor, precursor concentration, and synthesis time.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Lin Li, Fenglian Qi, Jiong Guo, Jing Fan, Wenxiang Zheng, Murtaza Ghulam, Weizhi Wang, Zihui Meng, Lili Qiu
Summary: In this study, Fe2O3@Au hexagonal nanodisks with tunable near-infrared (NIR) absorptions were successfully prepared. The localized surface plasmon resonance (LSPR) peaks of Au nanodisks were accurately tuned in the NIR therapeutic window. The Fe2O3@Au nanodisks showed low cytotoxicity and high photothermal therapy (PTT) performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Marwa A. Moghazy
Summary: Environmental pollution has a significant impact on humans and other organisms. The demand for a green method to synthesize nanoparticles for pollutant removal is increasing. This study focuses on synthesizing MoO3 and WO3 nanorods using the green and self-assembled Leidenfrost method. Characterization analysis shows the formation of nanoscale WO3 and MoO3 with specific properties.
Article
Engineering, Electrical & Electronic
Song Zou, Jingxuan Wu, Bo Wang, Qingsong Luo, Wenjun Wang, Zhenxing Wang, Yu Wan, Changhao Feng
Summary: Efficient and reliable monitoring of trimethylamine (TMA) is crucial for environmental protection and human healthcare. Molybdenum trioxide (MoO3) nanofibers have been identified as a promising sensing material with a low-detection limit for TMA. Controllable morphology of MoO3 nanofibers was achieved through adjusting electrospinning and calcination conditions. MoO3 with a second-step calcination time of 90 s exhibited excellent sensing properties towards TMA.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Nanoscience & Nanotechnology
Luis E. Jimenez-Ramirez, Emilio Munoz-Sandoval, Florentino Lopez-Urias
Summary: In this work, few-layered MoS2 nanostructures with different morphologies were successfully synthesized by mechanically modifying the Mo precursor. High-energy ball milling treatment of MoO3 powders allows for control over the size and shape of MoS2 structures, and oxygen deficiency in the precursor promotes the formation of a high density of nanoflakes.
Article
Chemistry, Multidisciplinary
Ethar Yahya Salih, Asmiet Ramizy, Osamah Aldaghri, Mohd Faizul Mohd Sabri, Nawal Madkhali, Tarfah Alinad, Khalid Hassan Ibnaouf, Mohamed Hassan Eisa
Summary: This study presents a simple technique for preparing novel hexagonal-shaped mixed metal oxide nanorods using Zn/Al-layered double hydroxide as a precursor for dye-sensitized solar cell application. The study shows that the nanorods' diameter has a strong correlation with the efficiency of the fabricated solar cells. Additionally, the study demonstrates the optical behavior of the fabricated oxide film and the absorption enhancement caused by the utilized dye.
Article
Chemistry, Analytical
John Bosco Balaguru Rayappan, Parthasarathy Srinivasan
Summary: Detection of methylamines in seafood quality assessment was conducted using chemi-resistive sensing with alpha-MoO3 nanorods synthesized via microwave technique. The calcination process influenced growth patterns, transforming triclinic phased ammonium molybdenum oxide to orthorhombic phased alpha-MoO3. The calcined samples showed densely populated nanorods with controlled aspect ratio and twinning dislocations, affecting grain features and activation energy. Maximum sensing response towards trimethylamine was observed with calcined sample prepared at 450 W. Response/recovery times varied with different methylamine species.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Neha Sakhuja, Ravindra Jha, Navakanta Bhat
Summary: The study presents a facile green synthesis method for 2D MoO3 for detecting ammonia at room temperature. MoO3 nanosheets with a metastable hexagonal phase were obtained by liquid exfoliation in water using ultrasonication. The phase transformation of MoO3 was attributed to water molecules intercalation in the 2D layers, resulting in excellent response towards ammonia in device tests.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Feng Hu, Rui-Lin He, Zong-Jie Guan, Chun-Yu Liu, Quan-Ming Wang
Summary: The reduction of alkynyl-silver and phosphine-silver precursors with weak reducing reagent Ph2SiH2 resulted in the formation of a novel silver nanocluster with the largest structure known so far. This disc-shaped cluster contains a Ag-69 kernel consisting of a bicapped hexagonal prismatic Ag-15 unit wrapped by six Ino decahedra through edge-sharing. The use of Ino decahedra as building blocks for a cluster of clusters is a first. The study also reveals that the central silver atom has a coordination number of 14, the highest in metal nanoclusters, and provides insights into metal cluster assembling mechanisms.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Energy & Fuels
Y. S. Nagaraju, H. Ganesh, S. Veeresha, H. Vijeth, H. Devendrappa
Summary: This paper describes a simple and well-controlled hydrothermal synthesis method for transition metal hydroxide nanorods and the construction of free-standing and stable hybrid structures. The nanocomposite was characterized and analyzed using various techniques, showing high specific capacitance, long cycle life, and high energy density.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
P. Kwasniak, S. Delannoy, F. Prima, E. Clouet
Summary: The plasticity of hexagonal titanium-aluminum alloys is influenced by the solute concentration and the order state of Al atoms. Introducing short-range order (SRO) affects Al strengthening and the competition between prismatic and basal slip modes. With ab initio calculations, we explore the interaction of screw dislocations with isolated Al atoms and Al pairs in a short-range ordered Ti-Al alloy. Calculated activation energies demonstrate significant hardening due to Al addition for both slip systems, making them competitive. This hardening effect is even more pronounced for Al pairs, resulting in reduced plastic anisotropy of Ti-Al alloys with SRO.
MATERIALS RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Kavya Pradeepan, Dinesh Kumar Subbiah, Noel Nesakumar, Gautham B. Jegadeesan, Arockia Jayalatha Kulandaisamy, John Bosco Balaguru Rayappan
Summary: This study aimed to develop an electrochemical sensor using molybdenum trioxide nanointerfaced glassy carbon working electrode for the sensitive detection of cetirizine dihydrochloride in water samples. The sensor demonstrated a rapid response time and a low detection limit, with good anti-interference properties, making it applicable for real sample analysis.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Chemistry, Physical
Keisuke Imaeda, Seiju Hasegawa, Kohei Imura
Summary: The geometrical modification of two-dimensional gold nanoplates has been investigated in this study, revealing that plasmonic cavity modes remain qualitatively consistent as long as the snipping size is not significant. Tip truncation affects both the optical selection rules and the energy relation for plasmonic cavity modes, providing a foundation for the rational design of plasmonic cavities with desired optical functionality.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Materials Science, Ceramics
Irum Shaheen, Khuram Shahzad Ahmad
Summary: This study focused on the sustainable design and synthesis of molybdenum trioxide nanoparticles using bioactive compounds as fuel, demonstrating their potential for electrochemical applications. The MoO3 nickel foam electrode exhibited moderate capacitance, energy density, and power density, showing promise for energy storage devices such as supercapacitors.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Pandi Muthukumar, Elango Sowmiya, Gunasekaran Arunkumar, Mehboobali Pannipara, Abdullah G. Al-Sehemi, Savarimuthu Philip Anthony
Summary: Water pollution caused by organic dyes poses significant challenges to the environment and living organisms. In recent years, there has been a growing focus on developing cost-effective methods to effectively remove organic dyes. In this study, we successfully achieved complete removal of organic dyes from water using MoO3 catalyst. The experimental results demonstrated that MoO3 has a high adsorption capacity for dyes and the adsorbed dyes remained stable for an extended period of time.
Article
Chemistry, Physical
Tianxue Zhu, Jiaqing Xiong, Jingwei Chen, Xinran Zhou, Guofa Cai, Yuekun Lai, Pooi See Lee
Summary: In this study, a flexible electrochromic nylon fiber based on Ag nanowires/PEDOT:PSS/WO3 nanoparticles was successfully fabricated, demonstrating rapid color switching and high optical modulation. The fiber was also sustainable to repeated mechanical deformations, making it suitable for flexible optoelectronic devices.
Review
Chemistry, Multidisciplinary
Jian Lv, Gurunathan Thangavel, Pooi See Lee
Summary: This review summarizes the failure modes in printing stretchable electronics using nano/micro composite ink and proposes strategies to tackle these challenges. The importance of reliable, printable, and stretchable electronics is emphasized in this article.
Article
Chemistry, Multidisciplinary
Hongbo Fu, Yong Jiang, Jian Lv, Yao Huang, Zipeng Gai, Ying Liu, Pooi See Lee, Hong Xu, Daming Wu
Summary: This study presents a reusable multilayer dielectric elastomer actuators (DEAs) with detachable and reconfigurable structure. Scalable compliant electrodes were prepared using continuous spatial confining forced network assembly (CSNA) method, and combined with vacuum lamination (VL) approach to achieve good attachability and detachability with VHB dielectric elastomer. The fabricated electrodes can work continuously over 10,000 cycles at 40% strained stretching, and maintain a smooth surface for constructing multilayer DEAs. Additionally, the electrodes can also be recovered and reused for building new actuators due to the detachable configuration. A detachable multilayer spring roll DEA was demonstrated as a lower limb assistive device, achieving approximately 3.1 degrees of flexion and extension movement of knee models under a voltage of 7 kV.
Article
Chemistry, Multidisciplinary
Xiaoyu Guo, Shaohua Chen, Wei Church Poh, Juntong Chen, Fan Jiang, Matthew Wei Ming Tan, Pooi See Lee
Summary: In this study, a Ni-Cu salts/poly(vinyl alcohol) based organohydrogel electrolyte with excellent transparency, ionic conductivity, and mechanical properties was developed. The high viscosity of the electrolyte enabled the electrodeposition of a homogeneous Ni-Cu alloy film with a surface roughness of around 11.2 nm, which retained its black color for over 350 minutes with only a 5% increase in transmittance. The solid-state rigid electrochromic device exhibited outstanding optical contrast and cycling stability. A flexible electrochromic device was also fabricated using the organohydrogel electrolyte and annealed ITO-coated PEN films, showing good mechanical flexibility and optical contrast.
ADVANCED MATERIALS INTERFACES
(2023)
Review
Chemistry, Physical
Suchita Kandpal, Tanushree Ghosh, Chanchal Rani, Anjali Chaudhary, Jinwoo Park, Pooi See Lee, Rajesh Kumar
Summary: Significant development in science and technology has occurred to meet the rising energy demands, particularly in response to environmental concerns associated with fossil fuels. Electrochromic devices, which combine energy conversion with color modulation, hold great promise for energy storage and saving purposes in buildings and vehicles, and can operate similarly to batteries and supercapacitors.
ACS ENERGY LETTERS
(2023)
Review
Chemistry, Physical
Hyunwoo Bark, Gurunathan Thangavel, Rui Jun Liu, Daniel H. C. Chua, Pooi See Lee
Summary: Thermal energy management is crucial in various fields, and MXene, as a new type of 2D material, has unique electrical and thermal properties. This review discusses surface modification methods, as well as the progress and challenges in thermal energy management of 2D MXenes.
Review
Materials Science, Multidisciplinary
Jingwei Chen, Gupta Adit, Lun Li, Yingxin Zhang, Daniel H. C. Chua, Pooi See Lee
Summary: Exploration of alternative energy storage systems, such as sodium-ion batteries, has become necessary due to the supply risks associated with lithium-ion batteries. Sodium-ion batteries have shown advantages in terms of cost-effectiveness and comparable energy density to lithium-ion batteries. This review summarizes and discusses the strategies adopted to optimize the various components and address the cost, safety, and commercialization issues in sodium-ion batteries. Despite advancements, challenges such as energy density, scalability, and trade-offs between energy density and functionality need to be addressed for commercialization. The review aims to provide an overview of the latest achievements in sodium-ion batteries and inspire further efforts in designing upgraded systems.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hyunwoo Bark, Pooi See Lee
Summary: A printable, thermally conductive, and mechanically stable composite ink for thermal management is introduced using galvanic replacement method.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shaohua Chen, Shu Fen Tan, Harpreet Singh, Liang Liu, Mathieu Etienne, Pooi See Lee
Summary: MXene film has great potential as a low-voltage electrochemical actuator, and functionalization of MXene can significantly improve its strain and mechanical properties, resulting in larger actuation under low voltage. The sliding mechanism between MXene layers may inspire the design of high-performance actuators.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Feng Jiang, Liuxiang Zhan, Jin Pyo Lee, Pooi See Lee
Summary: Fluid-based triboelectric nanogenerators (FB-TENGs) are emerging energy technologies with improved effective contact area and prolonged triboelectric effect compared to their solid-based counterparts. This review summarizes the working mechanism and optimization strategies of various FB-TENGs, including liquid-solid, gas-solid, liquid-liquid, and gas-liquid TENGs. Their respective advantages, applications, and challenges have been also systematically discussed, offering guidance for designing high-performance FB-TENGs.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Peiwen Huang, Hongbo Fu, Matthew Wei Ming Tan, Yixuan Jiang, Pooi See Lee
Summary: This study presents a one-step DLP 3D printing method for multilayer Dielectric Elastomer Actuators (DEAs), avoiding the time-consuming layer-by-layer process. Optimized DLP-printable Polyurethane Acrylate-based DEA material results in a non-pre-stretched cylindrical DEA with 270 mN blocked force and 45% actuation efficiency at 100 Hz. Demonstrated applicability as vibrotactile devices show promise for robotics and haptic interfaces.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Rahul Sahay, Yen-Cheng Tu, Izzat Aziz, Arief S. Budiman, Cher Ming Tan, Pooi See Lee, Olivier Thomas, Nagarajan Raghavan
Summary: In this study, the reliability of nickel-niobium oxide (crystalline-amorphous) sandwich nanolayers on a PI substrate (Ni-Nb2O5-PI) was reported as a potential candidate for electrodes or interconnects for flexible electronic or energy devices. The incorporation of amorphous niobium oxide into the nickel nanolayers significantly improved their fatigue/fracture strength with a slight reduction in electrical conductivity and low resistance oscillation essential for operational reliability of flexible devices. Additionally, the nickel-niobium oxide/polyimide stack was demonstrated to be electrically/mechanically stable up to 500 K stress cycles at a bending radius of 8.5 mm.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Physical
Hui Wang, Matthew Wei Ming Tan, Wei Church Poh, Dace Gao, Wenting Wu, Pooi See Lee
Summary: By adding a soft, stretchable, transparent, and solid-state poly(ionic liquid) (PIL) as a compliant filler, the actuation performance of dielectric elastomer actuators (DEAs) can be improved. The PIL filler provides high dielectric constant and low Young's modulus, increasing the strain and bending angle of the DEAs. Notably, the PIL filler also eliminates filler leakage problems and enables the DEAs to have recoverability. The solid-state PIL filler can be used for soft robotics, interactive lighting, or wearables.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Chemistry, Multidisciplinary
Yangyang Xin, Xinran Zhou, Hyunwoo Bark, Pooi See Lee
Summary: Soft grippers are crucial for handling delicate objects without causing any damage. This article reviews the use of 3D printing technologies in soft grippers, discussing the materials and printing processes involved. The application and potential development of 3D printing in soft grippers are also examined.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Raphael Salles, Wei Church Poh, Maxime Laurans, Florence Volatron, Antoine Miche, Sandra Alves, Christian Carino, Ludovic Tortech, Guillaume Izzet, Pooi See Lee, Anna Proust
Summary: Polyoxometalates (POMs), as nano-sized molecular oxides, show great potential in non-volatile memory materials. Different techniques have been used to prepare POM materials, with successful results. This study proposes a new method of covalently assembling POM networks to investigate the influence of the shaping process on communication and device performance. By utilizing the experience in handling organic-inorganic POM hybrids, diazonium hybrids have been prepared and grown on ITO electrodes, showing potential for write-once-read-many (WORM) devices with low set voltage.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Abu Talha Aqueel Ahmed, Sankar Sekar, Shubhangi S. Khadtare, Nurul Taufiqu Rochman, Bathula Chinna, Abu Saad Ansari
Summary: In this study, MnCo2S4 nanosheet catalyst was successfully synthesized and found to exhibit superior performance in hydrogen evolution. Compared to MnCo2S4, MnCo2S4 showed low overpotentials, moderate Tafel slope, and excellent sustainability. The outstanding performance can be attributed to the increased number of electrochemically active sites and enhanced electronic conductivity on the catalyst surface.
Article
Chemistry, Multidisciplinary
Victor V. Maltsev, Elena A. Volkova, Elizaveta V. Koporulina, Diana D. Mitina, Vladimir L. Kosorukov, Anna I. Jiliaeva, Daniil A. Naprasnikov, Konstantin N. Gorbachenya, Viktor E. Kisel
Summary: The phase relationships, crystal properties and luminescence kinetics of two complex systems were studied, including unit cell parameters, segregation coefficients of impurities, and lifetimes of energy levels.
Article
Chemistry, Multidisciplinary
Xiaoman Zhang, Wangwang Xu, W. J. Meng, Andrew C. Meng
Summary: This study successfully grew high-quality single crystal AlScN nanowires through ultra-high vacuum reactive sputtering technique and characterized their structure and properties. The nanowires exhibit significantly reduced mosaic spread and predominantly single ferroelectric domains, as well as a high piezoelectric constant.
Article
Chemistry, Multidisciplinary
Tom E. de Vries, Elias Vlieg, Rene de Gelder
Summary: Networks are important for describing relationships between people, roads between cities, reactions between chemicals, and other interactions. Bipartiteness, dividing the network into two groups, can facilitate the study of the network's structure. We have developed an algorithm that can find a near-optimal bipartisation within a reasonable time frame and used it to uncover the hidden structure of the CSD cocrystal network.
Article
Chemistry, Multidisciplinary
Chuchu Han, Jing Yang, Xin Zhang, Aisen Li, Jiang Peng
Summary: An elastic crystal based on a photo-reactive acylhydrazone derivative is reported, which exhibits reversible bending behavior under UV irradiation and heating. The crystal undergoes reversible E<->Z isomerization under light and heating conditions. The crystal demonstrates excellent elastic properties and the bending can be controlled to control the output direction of red light.
Article
Chemistry, Multidisciplinary
Lingfeng Zhang, Yu Wang, Yefeng Wang, Shuai Liu, Na Zhang, Mingmin Yang, Haixia Ma, Zhaoqi Guo
Summary: This study designs and synthesizes a series of high-energy salts compounds without heavy metal ions and azide groups. The molecular structures and stability of the compounds are confirmed through single-crystal X-ray diffraction and intermolecular interaction analysis. Furthermore, the thermal stability, energetic properties, and electrical initiation properties of the compounds are investigated, suggesting their potential as primary explosives.