Recent Advances in Perovskite Nanomaterials for Sensing Applications DOI Creative Commons
Samiksha Dabas, Manish Kumar, Dharm Veer Singh

и другие.

Journal of The Electrochemical Society, Год журнала: 2024, Номер 171(11), С. 117529 - 117529

Опубликована: Ноя. 1, 2024

Perovskite-structured materials have been extensively studied for sensing applications on account of their good thermal stability and 3–4 eV bandgap. They utilized to detect traces O 2 , NO, CO, NO CO H O, CH 4 similar smaller gas molecules such as C 5 OH etc. In addition, other are optical sensing, I-V fluctuations, strain sensors, electromechanical metal ions, halides reported toxic gases, Volatile Organic Compounds (VOCs), detection fungicides, pesticides, explosives, cellular imaging, radiation humidity temperature sensing.

Язык: Английский

Perovskite-based p-n type heterojunction Decorated with Reduced Graphene Oxide for Improved Liquified Petroleum Gas Sensing DOI
Rajanigandha Barik, Surya Kanta Ghadei,

Madhusmita Bhuyan

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 178905 - 178905

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

2
Engineering an Ultrafast Ambient NO2 Gas Sensor Using Cotton-Modified LaFeO3/MXene Composites DOI
Neeraj Dhariwal,

Preety Yadav,

Manju Kumari

и другие.

ACS Sensors, Год журнала: 2024, Номер unknown

Опубликована: Дек. 3, 2024

This work presents a room-temperature (RT) NO2 gas sensor based on cotton-modified LaFeO3 (CLFO) combined with MXene. (LFO), CLFO, and CLFO/MXene composites were synthesized via hydrothermal method. The fabricated sensor, utilizing MXene/CLFO, exhibits p-type behavior fully recoverable sensing capabilities for low concentrations of NO2, achieving higher response 14.2 times at 5 ppm. demonstrates excellent performance time 2.7 s recovery 6.2 s, along notable stability. sensor's sensitivity is attributed to interactions the material's surface, adsorption energy, charge-transfer mechanisms. Techniques such as in situ FTIR (Fourier transform infrared) spectroscopy, GC–MS (gas chromatography–mass spectroscopy), near-ambient pressure X-ray photoelectron spectroscopy employed verify their byproducts. Additionally, finite-difference time-domain simulations used model electromagnetic field distribution provide insight into interaction between molecules surface nanoscale. A prototype wireless IoT (Internet Things)-based leakage detection system was also developed, showcasing practical application. study offers valuable development sensors limit.

Язык: Английский

Процитировано

4
Vitalizing Perovskite Oxide-Based Acetone Sensors with Metal–Organic Framework-Derived Heterogeneous Oxide Catalysts DOI
Minhyun Kim,

Seyeon Park,

Jaewan Ahn

и другие.

ACS Sensors, Год журнала: 2024, Номер 9(12), С. 6492 - 6501

Опубликована: Ноя. 1, 2024

Perovskite oxides are promising candidates for chemiresistive-type gas sensors owing to their exceptional thermal and chemical stability during solid–gas reactions. However, perovskites suffer from critical issues such as low surface area poor activity, which negatively influence the sensing characteristics. While metal nanoparticles can be incorporated in improve reactivity, fundamental incompatibility between catalytic metals perovskite often leads substantial structural degradation well phase instability. Herein, we overcome this challenge through introduction of an intermediary that forms coherent interfaces with both catalyst metals. Specifically, present case study p-type La0.8Ca0.2Fe0.98Pt0.02O3 perovskite, whose hole accumulation layer was modulated by incorporation metal–organic framework (MOF)-derived n-type α-Fe2O3 decorated highly dispersed Pt catalysts. The resulting composite exhibited significantly improved activity over nonmodified La0.8Ca0.2FeO3 leading chemiresistive performance toward acetone (Rg/Ra = 39.8 10 ppm at 250 °C) high cross-sensitivity against interfering gases. Importantly, our findings reaffirm interfacial engineering facilitating reactions on and, doing so, effectively provide a general synthetic guideline design perovskite-based chemiresistors.

Язык: Английский

Процитировано

3
Reduced graphene oxide/urea-modified LaFeO₃ composite films for humidity sensing/supercapacitor applications DOI
Manju Kumari, Neeraj Dhariwal,

Preety Yadav

и другие.

Materials Chemistry and Physics, Год журнала: 2025, Номер unknown, С. 130456 - 130456

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Sucrose auto-combustion synthesis of Al3+ and Cr3+ substituted LaFeO3 ceramic perovskite: Structural, magnetic, and electrical characterizations DOI Creative Commons
M.A. Gabal,

D.S. Al-Ooseimy,

Y.M. Al Angari

и другие.

Results in Chemistry, Год журнала: 2025, Номер unknown, С. 102126 - 102126

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0
Recent Advances on the Gas-Sensing Properties and Mechanism of Perovskite Oxide Materials - A Review DOI Creative Commons
Nafis Ahmad, Prakash Kanjariya,

G. Padma Priya

и другие.

ACS Omega, Год журнала: 2025, Номер 10(14), С. 13780 - 13796

Опубликована: Апрель 1, 2025

Perovskite oxide-based materials (ABO3) have gained much attention as promising candidates for advanced gas-sensing applications due to their versatile structures, tunable properties, and excellent stability. This review discusses recent developments in the synthesis, structural optimization, functionalization of perovskites enhance performance. Strategies such doping, creating oxygen vacancies, tuning morphology, forming heterojunctions significantly improved sensitivity, selectivity, response, recovery times. Specific advances include incorporation nanostructures, porous morphologies, catalytic elements, which optimized adsorption desorption processes various target gases, including volatile organic compounds, NO2, CO2. Mechanistic insights into role surface defects, charge carrier dynamics are also addressed. These position perovskite important components next-generation gas sensors environmental monitoring industrial applications.

Язык: Английский

Процитировано

0
Design and development of a novel device to identify the individual concentration of NO and NO2 in a gas mixture DOI

Md Abu Sayeed Sujan,

Suman Chatterjee

Review of Scientific Instruments, Год журнала: 2025, Номер 96(4)

Опубликована: Апрель 1, 2025

This study investigates the performance of advanced potentiometric sensors utilizing yttria-stabilized zirconia (YSZ) substrates coated with lanthanum copper oxide (La2CuO4) or tungsten (WO3) for selective detection nitrogen oxides (NO and NO2). The were systematically evaluated at operating temperatures 550, 600, 650 °C. results indicate that sensitivity to NO2 significantly increases higher temperatures, while response NO is more pronounced lower temperatures. behavior attributed catalytic conversion vice versa, enhanced by a porous platinum (Pt) layer applied sensing elements. A robust linear relationship between generated potential gas concentrations was established, allowing accurate estimation unknown in mixed environments. In addition, highlights importance temperature optimizing sensor demonstrates application these environmental monitoring regulatory compliance. findings contribute insights into designing efficient technologies aimed improving air quality management strategies globally.

Язык: Английский

Процитировано

0
Enhanced n-butanol sensing performance of Co3O4/LaFeO3 nanocomposites DOI
Jian Zhang, Yue Yu, Yanping Chen

и другие.

Materials Letters, Год журнала: 2024, Номер unknown, С. 137574 - 137574

Опубликована: Окт. 1, 2024

Язык: Английский

Процитировано

1
Recent Advances in Perovskite Nanomaterials for Sensing Applications DOI Creative Commons
Samiksha Dabas, Manish Kumar, Dharm Veer Singh

и другие.

Journal of The Electrochemical Society, Год журнала: 2024, Номер 171(11), С. 117529 - 117529

Опубликована: Ноя. 1, 2024

Perovskite-structured materials have been extensively studied for sensing applications on account of their good thermal stability and 3–4 eV bandgap. They utilized to detect traces O 2 , NO, CO, NO CO H O, CH 4 similar smaller gas molecules such as C 5 OH etc. In addition, other are optical sensing, I-V fluctuations, strain sensors, electromechanical metal ions, halides reported toxic gases, Volatile Organic Compounds (VOCs), detection fungicides, pesticides, explosives, cellular imaging, radiation humidity temperature sensing.

Язык: Английский

Процитировано

1