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Review
Energy & Fuels
Manuraj Mohan et al.
Summary: Among transition metal chalcogenides, MoS2 is widely studied due to its fascinating physico-chemical properties. Its layered structure and high surface-to-volume ratio have attracted attention in energy storage, leading to numerous applications. While there are review articles on MoS2 and MoS2-based nanocomposites for energy storage applications, there is a lack of reviews focusing on the supercapacitor performance of MoS2. This article presents recent advances in MoS2-based supercapacitors, discussing the conducting-semiconducting phases, doping effects, and the status of MoS2 in flexible and wearable supercapacitors, as well as future prospects and challenges as electrode materials.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Benzheng Li et al.
Summary: In this study, a new type of layered porous nickel oxide doped zinc oxide nanocomposite was synthesized using sunflower straw as a template. The results showed that the synthetic SFS NiO/ZnO successfully maintained the original pore morphology of the sunflower straw material and consisted of a large number of nanoparticles of uniform size and shape. The gas sensing performance of the prepared samples indicated that the SFS NiO/ZnO biocomposite had promising sensing performance for formaldehyde.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Di Wu et al.
Summary: This paper focuses on the design of novel nanocomposites for gas sensors with superior performance. A series of nanocomposites were synthesized using the hydrothermal method and their morphological and structural properties were confirmed through various characterizations. Among the five fabricated gas sensors, the gCN-ZNO-5 sensor showed the highest response of 14.6 towards 100 ppm ethanol, along with good selectivity (2.4), reproducibility (5 cycles), stability (24 days), minimum limit of detection (0.1 ppm), and short response/recovery times (25 s/12 s).
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Linjer Chen et al.
Summary: A novel heterojunction of MoS2 and a-Fe2O3 was successfully synthesized by hydrothermal method, which showed enhanced photocatalytic and photoelectrochemical performance due to special adjustments to the nanostructure. The nano MoS2/a-Fe2O3 exhibited excellent surface area and intrinsic edges, leading to more active reaction sites. The formation of strong heterojunction between the two semiconductors contributed to the improved photocatalytic degradation of organic dyes. The fabricated nano MF samples demonstrated stability, reusability and wide utilization potential in photocatalytic and PEC processes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Jiacheng Yang et al.
Summary: A resistive sensor based on NiO/Ti3C2Tx sensitive nanocomposites was developed for NH3 detection in a natural environment. The addition of NiO nanoparticles significantly enhanced the gas-sensing response of pure Ti3C2Tx MXene to NH3 at room temperature, and improved the response and recovery time. The sensor also exhibited prospective and high selectivity to volatile organic compounds (VOCs), as well as good repeatability and long-term stability.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Di Wu et al.
Summary: In this study, a series of nanocomposites based on MoS2 octahedrons and ZnO-Zn2SnO4 nanoparticles were synthesized for detecting H2S gas at low temperatures. Among them, the gas sensor of MS-ZNO-5 showed the highest response to 2 ppm H2S and less response to other tested gases. The sensor also exhibited humble selectivity, good stability, promising reproducibility, rapid response/recovery times, low detection limit, and a linear relationship between H2S concentration and response.
Article
Chemistry, Analytical
Jinyong Hu et al.
Summary: By using Au@MoS2 core-shell hetero-structures as sensitive materials, a visible-light-assisted gas sensor was designed, and the effect of localized surface plasmon resonance on gas-sensitive features was investigated. The optimized sensor exhibited an enhanced response and elevated recoverability for the detection of NO2 (1 ppm), primarily due to the effective amplification of the light absorption efficiency of MoS2 induced by the LSPR effect from the Au nanoparticle cores. This study provides a new insight into the development of high-performance visible-light-modulated gas sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Asha Sharma et al.
Summary: Research into wearable electrochemical sensors based on two-and three-dimensional nanomaterials is urgently needed for clinical monitoring and analysis in health care. Metal-organic frameworks (MOFs) have the potential to be effectively utilized as electrochemical sensors due to their large surface vicinity, controlled variable porous structure, enhanced capability, and excellent catalytic property. This article reviews the synthesis and analysis of MOFs as well as their use as electrochemical sensors in the medical field, providing new possibilities for enhancing the functionality of wearable electrochemical sensors.
TRENDS IN ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Yang Li et al.
Summary: This study reports a nanocomposite with a unique structure of MoS2 nanosheets dispersed SnO2 nanoparticles. The sensing performance of a MoS2/SnO2 sensor towards low concentration CO was investigated under UV light illumination. It was found that the MoS2/SnO2 sensor exhibits improved CO gas response compared to pure SnO2, which is attributed to the formation of a heterostructure between MoS2 and SnO2. Additionally, the sensor also demonstrates fast response and recovery time. It provides a potential platform for monitoring CO gas at room temperature.
CERAMICS INTERNATIONAL
(2023)
Article
Electrochemistry
Sonali Verma et al.
Summary: The development of an efficient mechanical to electric energy conversion system and its integration with an energy storage device for self-powered portable devices is an advanced research field. This study proposes a self-charging asymmetric piezo-supercapacitor using zinc oxide nanoparticles as piezoelectric material, achieving high cyclic stability and voltage generation through compressive force.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Surajit Das et al.
Summary: In this study, a p-NiO/n-SnO2 heterojunction-based formaldehyde (HCHO) sensor was fabricated by decorating the surface of pre-deposited SnO2 thin film with laser-ablated NiO nanoparticles. The gas sensing properties of the sensor were systematically investigated, and it showed a higher response towards 50 ppm HCHO compared to the pristine SnO2 sensor. The study demonstrated that laser ablation methods have great potential as a chemical-free surface decoration route for metal oxide heterojunction-based sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Materials Science, Ceramics
T. Pushpagiri et al.
Summary: This study investigated the influence of Zn ion doping on the structural, vibrational, colloidal stability, and morphological features of NiO nanoparticles. XRD confirmed that the crystallite size decreases with increasing doping concentration. SEM revealed predictable changes in size and morphology due to varying doping doses. TEM images showed that the produced samples have a spherical form. The gas sensor behavior of Zn-doped NiO nanoparticles confirmed their suitability for CO2 gas sensing.
CERAMICS INTERNATIONAL
(2023)
Article
Multidisciplinary Sciences
Aamir Ahmed et al.
Summary: This work presents the sulfonation technique to convert the outer layers of surgical face masks into carbon nanoparticles, which can be used as supercapacitor electrodes. The electrochemical testing shows that the carbon thin film electrode exhibits high specific capacitance and cycle stability. This research is an important step towards recycling the waste generated from surgical face masks during the COVID-19 pandemic for energy storage.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Kyu Seung Lee et al.
Summary: This study demonstrates the sensing properties and adsorption mechanism of monolayer graphene and multilayer graphene encapsulated ZnO quantum dots for NO2 gas. The results show that the gas response value and surface potential change of multilayer graphene encapsulated ZnO quantum dots are significantly higher than those of monolayer graphene and ZnO quantum dots. The proposed adsorption mechanism provides insights for improving the detection behavior and enhancing the accuracy of gas sensor analysis.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Metallurgy & Metallurgical Engineering
Han-bing He et al.
Summary: In this study, vertical MoS2 nanosheets were patterned onto graphene as nanoflowers through a two-step hydrothermal method. The interconnected network and intimate contact between MoS2 nanosheets and graphene by vertical channels enabled a high mechanical integrity of the electrode and cycling stability.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Chemistry, Physical
Ali Akhtar et al.
Summary: A nanocomposite with spherical NiCo2O4 decorated onto g-C3N4 layered structure was synthesized for detecting ethanol vapors, showing a low detection limit, enhanced response, and excellent stability and selectivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Xingtai Chen et al.
Summary: Pd-modified Sb-doped SnO2 nanomaterials were prepared using a hydrothermal reaction and reduction method. The samples exhibited uniform doping of Sb within the SnO2 lattice and successful incorporation of Pd on the surface. Compared to pristine SnO2, the material with 3 mol% Sb doping and 7 wt% Pd decoration showed the highest response to hydrogen gas at high temperature, as well as excellent selectivity and cycling stability. The improved sensing performance was attributed to changes in the energy band structure, lattice distortion-induced oxygen vacancies, and strong metal-support interaction between Pd and SnO2.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Truong Tien Hoang Duong et al.
Summary: In this study, a PtO2-decorated MoS2 nanostructure gas sensor was fabricated using a chemical reduction process. The gas response of the as-obtained PtO2-decorated MoS2 gas sensor toward NH3 is remarkably high, almost 20 times higher than that of the pristine MoS2 nano-structure gas sensor.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Analytical
Haineng Bai et al.
Summary: This study successfully realizes a room-temperature NO2 gas sensor based on CuO/MoS2 heterojunctions with excellent sensitivity and fast response/recovery speeds. The sensor exhibits remarkable response and short response/recovery time to 10 ppm NO2 at room temperature under red light illumination, and has low detection limit, excellent reversibility, and high selectivity to NO2.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Rishi Ranjan Kumar et al.
Summary: A high-performance room temperature NO2 chemoresistive gas sensor was fabricated using a MoS2/ZnO nanohybrid, exhibiting remarkable responses, low detection limit, and full recovery. The Langmuir adsorption model was utilized to study the adsorption/desorption kinetics in detail.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Chen Su et al.
Summary: A novel flower-like hierarchical NiO-ZnO heterostructure was synthesized using a one-step hydrothermal method with the assistance of glucose and further calcination treatment. Gas sensors based on this heterojunction showed excellent response and stability for glycol detection at relatively low operating temperature. This work demonstrates a great potential for efficient glycol gas detection by directly synthesizing G-NiO-ZnO heterojunction in a one-step approach.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Xue Li et al.
Summary: This paper investigates the gas sensing properties of CdGa2O4 spinel oxide-based gas sensors for formaldehyde. By controlling the preparation conditions, materials with good responses to formaldehyde were obtained, showing promise for the detection of formaldehyde at ultralow concentrations.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Ao Liu et al.
Summary: The study developed an NH3 gas sensor based on PANI composited with MoS2 nanosheet-coated SnO2 nanotubes, showing excellent response signal and low detection limit. The sensor exhibited good performance, response-recovery time, repeatability, flexibility, and selectivity at room temperature.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Environmental
H. I. Hamouda et al.
Summary: The synthesized nanocomposite of Ag-MWCNTs demonstrates excellent antimicrobial capability, particularly showing higher inhibition against gram-positive bacteria and a broad-spectrum activity against various microbial strains. SEM and fluorescent microscopy analysis revealed that the antibacterial agent firmly agglutinated to the surface of bacterial cells, leading to cell wrapping, morphological disruption, and cell death.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Gyu Jin Choi et al.
Article
Chemistry, Physical
M. Manuraj et al.
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Multidisciplinary
Lei Xu et al.
JOURNAL OF MATERIALS RESEARCH
(2020)
Article
Chemistry, Analytical
Haipo Dai et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2019)
Article
Chemistry, Physical
Qiao Wang et al.
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Materials Science, Multidisciplinary
R. BoopathiRaja et al.
Article
Chemistry, Physical
Ya Xiong et al.
APPLIED SURFACE SCIENCE
(2018)
Article
Chemistry, Physical
Xiaoguang San et al.
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Physics, Multidisciplinary
Seungbok Choi et al.
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
(2017)
Article
Nanoscience & Nanotechnology
Xian Li et al.
Article
Chemistry, Analytical
Ya Xiong et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Materials Science, Ceramics
Muhammad Mansha et al.
CERAMICS INTERNATIONAL
(2016)
Article
Materials Science, Ceramics
Huihui Yan et al.
CERAMICS INTERNATIONAL
(2016)
Article
Chemistry, Physical
P. X. Zhao et al.
JOURNAL OF ALLOYS AND COMPOUNDS
(2016)
Article
Chemistry, Multidisciplinary
Shumao Cui et al.
Article
Nanoscience & Nanotechnology
Jian Wang et al.
NANOSCALE RESEARCH LETTERS
(2015)
Article
Chemistry, Inorganic & Nuclear
Jinzhu Li et al.
DALTON TRANSACTIONS
(2014)
Article
Chemistry, Physical
W. Q. Li et al.
JOURNAL OF ALLOYS AND COMPOUNDS
(2014)
Article
Chemistry, Analytical
Niranjan S. Ramgir et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2013)
Article
Chemistry, Multidisciplinary
Weijia Zhou et al.
Article
Physics, Applied
Mahendra D. Shirsat et al.
APPLIED PHYSICS LETTERS
(2009)
Article
Engineering, Multidisciplinary
V. S. Demin et al.
MEASUREMENT TECHNIQUES
(2008)
