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Article
Chemistry, Analytical
Wenhu Tan et al.
Summary: Binder-free CeO2 coated/Pd-decorated CuxO nanowires were synthesized through a four-step process involving electrochemical nanoengineering, galvanic replacement, soaking, and thermal annealing. The resulting nanowires exhibited enhanced sensing properties to H2S due to the optimized Pd thin layer and moisture-blocking CeO2 overlayer. The sensor showed a high response to H2S, rapid response/recovery speed, good selectivity, and humidity-independent sensing properties, making it suitable for environmental monitoring.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Tao -Tao Wu et al.
Summary: In this study, hierarchical Nb2O5@ZnO hetero-branched nanorods were synthesized for highly responsive, selective, and stable H2S sensors. These sensors showed excellent response at the optimal working temperature and maintained steady performance over a month, indicating their potential for sensitive and selective H2S detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Ajeet Singh et al.
Summary: A self-powered carbon dioxide (CO2) gas sensor based on CeO2/CdS triboelectric nanogenerator (TENG) was developed, which exhibited good sensitivity and selectivity. The resistive type and self-powered CO2 gas sensing performance of CeO2, CdS, and CeO2/CdS nanomaterials were compared. CeO2/CdS heterostructure was confirmed to form a type II heterojunction through XPS analysis. The CeO2/CdS showed a regular nanosphere morphology with a size range of 30-60 nm. The resistive type CO2 gas sensor achieved a sensor response of 3.96 at 1000 ppm CO2, while the self-powered CO2 gas sensor achieved a response of 30 at the same concentration. The minimum response and recovery times for 250 ppm CO2 were found to be 1835 and 835 ms, respectively. The self-powered CeO2/CdS TENG-based CO2 sensor demonstrated high sensitivity, selectivity, and quick responsiveness.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Physical
Gajanan M. Hingangavkar et al.
Summary: Facile hydrothermal route was employed to prepare MoS2 nanoparticles (NPs) with superior specific surface area and hexagonal lattice structure. The MoS2 NPs demonstrated excellent gas sensing performance towards H2S gas, with a fast response and recovery time. It could detect as low as 1 ppm concentration of H2S gas.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Xiao-Yong Miao et al.
Summary: Heterostructured alpha-Fe2O3/SnO2 core-shell nanowires were successfully synthesized using atomic layer deposition (ALD). The gas sensing properties of the nanowires with different shell thicknesses were investigated and the gas sensing mechanism was analyzed. The sensors exhibited high responses towards H2S and showed excellent selectivity, repeatability, and long-term stability. The formation of the alpha-Fe2O3/SnO2 heterojunction contributed to the enhanced performance, which was confirmed by density functional theory calculations.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Shiv Dutta Lawaniya et al.
Summary: In this study, we developed a eco-friendly and one-step method to synthesize hierarchical polypyrrole (PPy) nanotubes assembled urchins and flower-like nanostructures, and examined their morphology-dependent gas sensing properties. The PPy urchins and flower-like nanostructures showed high surface area and porous structure, resulting in great response, repeatability, and long-term durability to ammonia gas. Furthermore, the proposed flexible gas sensor demonstrated high mechanical robustness and remarkable performance for ammonia detection at room temperature, indicating its potential for wearable electronics applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Xidong Hao et al.
Summary: A new type YSZ-based mixed potential gas sensor with Nd2NiO4 sensing electrode was developed for the detection of hazardous gas hydrogen sulfide (H2S). The sensor exhibited the highest response value to 1 ppm H2S due to its strong electrochemical catalytic activity. It also showed fast response/recovery time, low detection range, and good sensitivity to different concentrations of H2S. Moreover, the sensor demonstrated good repeatability, excellent selectivity, and acceptable stability during 30 days continuous measurement.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Amal George et al.
Summary: Using the HFCVD technique, vanadium pentoxide (V2O5) thinfilms were deposited and their structural characteristics and gas sensing response were investigated. The thinfilms were found to be orthorhombic V2O5 with preferred orientation. Optimization of oxygen content and substrate to filament distance resulted in the formation of nanorod thinfilms. The nanorod thinfilms showed a sensing response of 1.557 and 1.721 towards 200 ppm ammonia and ethanol, with response and recovery times of 14 s and 26 s for ethanol, and 20 s and 38 s for ammonia, respectively.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Gajanan M. Hingangavkar et al.
Nano-Structures and Nano-Objects
(2023)
Article
Chemistry, Analytical
Mingcong Tang et al.
Summary: A sensitive H2S sensor for detecting low concentrations of H2S in SF6 electrical equipment was developed using ZnO nanorods-modified SnS2 Debye nanowires. At an optimum temperature of 180 degrees C, the sensor showed a response time of 10 s and a recovery time of 51 s to 30 ppm H2S, with a response value of 71.2%. The sensor exhibited a detection limit as low as 50 ppb for H2S, along with excellent stability, moisture resistance, and long-term stability. The study also demonstrated that ZnO enhanced the adsorption performance of SnS2 on H2S. The H2S sensor prepared using ZnO-SnS2 is expected to be a promising candidate for detecting hazardous gases in the environment and SF6 decomposition products.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Reza Taheri Ghahrizjani et al.
Summary: A gas sensor was fabricated using SnO2 nanorods (NRs) and Ag doped SnO2 nanoparticles (NPs) to detect H2S gas. The morphology, chemical, optical, and electrical properties of the nanostructure were examined, and the sensor was enhanced by Ag doping and simultaneous exposure to UV illumination and self-heating. The unique nanostructure design improved the sensing response and reduced the destructive effect of humidity.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Yaroslav Mozharov et al.
Summary: This study synthesized nano-crystalline monoclinic sheelite ms-BiVO4 and tetragonal zircon tz-BiVO4 polymorphs and comparatively studied their surface acidity, oxidation reactivity, electric conduction, and gas sensing performance. It was found that tz-BiVO4 and V2O5 had similar concentrations of acid sites, while ms-BiVO4 had lower surface acidity. The sensitivity and selectivity of BiVO4 sensors to H2S and acetone were improved depending on temperature.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Zi-ang Zhang et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Engineering, Environmental
Gajanan M. Hingangavkar et al.
Summary: A hydrothermal route was used to synthesize molybdenum disulfide (MoS2)-graphene oxide (GO) hybrids. Various characterization techniques were employed to analyze the gas sensing performance of the prepared MoS2-GO (1 to 5 wt%) hybrids. The results showed that the hybrid with 3% GO exhibited the highest response towards 100 ppm hydrogen sulfide (H2S) gas at room temperature, with the lowest detected concentration of 1 ppm and a response value of 0.51%. This study investigated the synergistic effect of MoS2 NPs and GO sheets on the gas sensing performance for the first time.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Ceramics
Gajanan M. Hingangavkar et al.
Summary: A facile synthesis route of tungsten oxide-reduced graphene oxide (rGO) nanohybrids was reported, and various analysis techniques were used to study their gas sensing performance. The nanohybrid sensor showed remarkable gas selectivity towards nitrogen dioxide (NO2) and demonstrated potential for practical applications in air quality monitoring and emission control.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Hsu-Sheng Tsai et al.
Summary: This review systematically introduced the properties of elemental two-dimensional materials beyond graphene and their application in gas sensing. It was found that these materials are effective in detecting carbon-, nitrogen-, and sulfur-based gases, as well as organic vapors. However, the challenge lies in the instability of these materials under atmospheric conditions.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Analytical
Vimalasundari Nagarajan et al.
Summary: A novel electrochemical sensing device based on TiO2@rGO/beta-CD nanocomposite modified electrode has been developed for the trace-level detection of L-Tyrosine. The device shows excellent electrocatalytic oxidation performance, high sensitivity, and low detection limits.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Environmental
Kedhareswara Sairam Pasupuleti et al.
Summary: In this study, a high-performance langasite-based surface acoustic wave (SAW) gas sensor for nitrogen dioxide (NO2) at room temperature was developed. The sensor exhibited excellent selectivity, sensitivity, and response time, as well as stability in various relative humidity conditions. The integration of 2D materials with metal oxides shows promise for environmental protection.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Analytical
M. D. Fernandez-Ramos et al.
Summary: A resistive sensor based on carbon gel-TiO2 nanocomposites has been developed to detect ammonia gas, showing good sensitivity, selectivity, stability, and resistance to humidity.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Venkata Ramesh Naganaboina et al.
Summary: In this study, a chemiresistor based on high entropy oxide was fabricated, exhibiting higher selectivity to methane gas with good response and recovery time, long-term stability, and low power consumption. This facile approach sheds light on the rational design of high entropy oxides, paving the way for mass production and commercialization of ultra-trace gas detection sensors with superior sensing capability.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Environmental
Yajie Zhang et al.
Summary: In this study, In2O3/MoS2 composite sensor was synthesized to improve the sensitivity and selectivity of NO2 detection at room temperature.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Heng Zhang et al.
Summary: This study synthesized Pd modified LaFeO3 with a high specific surface area using the sol-gel method, which exhibited high response stability, selectivity, and potential in H2S detection.
Article
Chemistry, Analytical
Gajanan M. Hingangavkar et al.
Summary: Nanoflowers of WO3 were grown on glass substrate using an inexpensive hydrothermal method at low temperatures. The structure and morphology of the WO3 nanoflowers were studied using various characterization techniques. The nanoflowers exhibited a hexagonal crystal structure and a porous morphology with a high specific surface area. They showed exceptional gas sensing properties towards toxic NO2 gas, with good reproducibility and stability. The interaction mechanism between the gas and the WO3 nanoflowers was investigated using impedance spectroscopy.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Bao-Yu Song et al.
Summary: Cr2O3 nanomaterials with high sensing towards trace H2S were synthesized using waste willow catkins as bio-template. The Cr-400 hierarchical structure, obtained from the calcination of 400 C, exhibited excellent morphology and enhanced detection ability for H2S gas.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Chuanxin Ge et al.
Summary: In this study, the on-chip preparation of SnO2 nanoarrays with porous netlike structure was achieved using in-situ grown NiO nanoarrays as the template. The as-prepared SnO2 nanoarrays exhibited excellent selectivity, stability, and linear response to H2S. The nanoarrays showed higher and faster H2S response compared to the dense film counterpart due to their porous net-like microstructure. A portable sensor device based on SnO2 nanoarrays was fabricated for accurate H2S detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Sujit Anil Kadam et al.
Summary: The study found that manganese-doped zinc oxide nanostructures have higher photocatalytic activity for Malachite Green dye compared to pure zinc oxide nanostructures.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
Tan Le Hoang Doan et al.
Summary: ZnO/CuO nanocomposites derived from a metal-organic framework showed excellent gas sensing performance on low concentrations of H2S gas, with high response, selectivity, and repeatability. This was attributed to the texture coefficients of the ZnO and CuO phase compositions, leading to the formation of a high number of p-n junctions and quantum confinement effects, as well as the lower binding energy of H2S.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Jae Hoon Bang et al.
Summary: The study involved decorating multi-walled carbon nanotubes with Cu2O/CuO nanoparticles for gas sensing applications, resulting in high sensor response to H2S gas. The Cu2O/CuO decorations increased the effective surface area for sensing studies and acted as an effective catalyst for H2S gas.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Alexandra Carvalho et al.
Summary: In this study, a precise determination of the oxygen content of graphene oxide samples was achieved by combining state-of-the-art ab initio computational modeling with X-ray photoemission spectroscopy. The shift of the XPS C1s peak relative to pristine graphene was accurately described using a mathematical equation, providing a method for determining the degree of oxidation of graphene oxide.
Article
Engineering, Environmental
Haijun Chen et al.
Summary: A two-step approach was reported to synthesize MoS2/Lignin-derived Carbon (MoS2@LDC) nanocomposites for efficient removal of Cr(VI) from aqueous solutions, achieving a removal efficiency of 99.35% in 30 minutes through both adsorption and reduction pathways. Hydrogen plasma treatments further enhanced the reduction activity of MoS2@LDC, improving its performance for heavy metal remediation in aquatic environments.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Yanqiao Ding et al.
Summary: This study synthesized ternary MoS2-rGO-Cu2O composites with enhanced ppb-level NO2 sensing characteristics, achieving highest response to 500 ppb NO2 at room temperature compared to pure MoS2 and binary MG15. The synergy of shell-structure, mesoporous, heterojunction construction, and enhanced conductivity contributed to the improved sensing performance of the ternary sensor.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Anurag Jaswal et al.
Summary: This paper reports the synthesis, characterization and detailed adsorption studies of rGO-MoS2 heterostructure for the removal of ofloxacin from aqueous phase. The thermodynamic study revealed the process to be spontaneous and exothermic, and the heterostructure adsorbent demonstrated remarkable reusability and stability. The combination of 2D materials in the heterostructure showed excellent performance towards the removal of pollutants, suggesting a good strategy for producing highly efficient materials.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Sujit A. Kadam et al.
Summary: A tunable bandgap without doping has been achieved by simply changing the synthesis temperature of Fe2O3 nanostructured films. The increase of Fe2+ cations and cubic (gamma) phase with elevated synthesis temperatures resulted in a reduction in the bandgap. This non-doping linear bandgap reduction of 0.55 eV makes Fe2O3 nanostructured films promising materials for applications in bandgap engineering, optoelectronic devices, and energy storage devices.
NANOSCALE ADVANCES
(2021)
Article
Engineering, Environmental
Mingxing Liang et al.
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Chemistry, Analytical
Di Liu et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Chemistry, Analytical
Renjun Si et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Engineering, Environmental
Xiaokang Qiao et al.
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Engineering, Environmental
Muhammad Ikram et al.
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Article
Chemistry, Analytical
Dongzhi Zhang et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2019)
Review
Chemistry, Physical
H. Hashtroudi et al.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Energy & Fuels
Xiangming Liu et al.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2018)
Article
Chemistry, Physical
S. M. Ingole et al.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2017)
Article
Optics
Jing Wei et al.
Article
Chemistry, Analytical
Xiaosheng Tang et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Analytical
S. T. Navale et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Analytical
P. S. Shewale et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2013)
Article
Chemistry, Analytical
S. V. Jagtap et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2008)
