Article
Chemistry, Analytical
Peng He, Haitao Fu, Xiaohong Yang, Shixian Xiong, Dezhi Han, Xizhong An
Summary: This study investigated various integration types of In2O3/ZnS composites as high-performance sensing materials for different volatile organic compounds. Two optimized structures were prepared by adjusting the molar ratios of In2O3 to ZnS and showed different sensing responses towards specific target gases, highlighting the importance of composite selection and structure design in developing high-performance gas sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Review
Chemistry, Physical
Y. Shi, X. Li, X. F. Sun, X. Shao, H. Y. Wang
Summary: Detection of ethanol is crucial in various fields due to its explosive, colorless and volatile nature. Metal oxide semiconductors (MOS) gas sensors, particularly those based on indium oxide (In2O3), have gained attention for their low cost and convenient detection. This paper summarizes the strategies used in the last decade to enhance the performance of In2O3-based gas sensors for ethanol detection, including morphology modification, doping, heterojunction construction, and the use of composite materials. The sensing mechanism for ethanol detection by gas sensors is also presented.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
R. Aysha Parveen, R. Ajay Rakkesh, D. Durgalakshmi, S. Balakumar
Summary: In this study, an efficient room-temperature gas sensor was synthesized using a microwave-assisted hydrothermal method, with a hybrid nanostructure composed of biomass-derived graphene nanosheets and Ag2S. The hybrid nanostructure showed higher hydrogen sensing efficiency than pure Ag2S nanoparticles, with a maximum response of 45.5% for 150 ppm exposure of hydrogen gas at room temperature. The fast response time and high gas sensitivity of the hybrid sensor were attributed to the diverse attributes and synergetic effect between Ag2S and GNS hybrids.
Article
Materials Science, Multidisciplinary
Pulok Das, Nirmalya Sankar Das, Kausik Sardar, Brahami Das, Ashadul Adalder, Kalyan Kumar Chattopadhyay
Summary: Various CuBO2 nanostructures with different shapes and properties were successfully synthesized using different methods. The samples were thoroughly characterized using various techniques, and it was found that the CuBO2 nanoparticles synthesized via sol-gel method showed the highest aspect ratio and exhibited pseudo capacitive nature. The electrochemical properties of the samples were correlated with their aspect ratio, surface area, and elemental variation. This study not only expands the applications of CBO, but also provides insight into its electrochemical behavior.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Feng Li, Ziqiang Zeng, Mingyang Wu, Leda Liu, Wenlong Li, Fobao Huang, Wei Li, He Guan, Wangchang Geng
Summary: Selective detection of noxious gases at low temperature is important in many industrial applications. In this study, SnS2/ZnS microspheres doped with 3.0 at% Sm were prepared and showed enhanced gas sensing performance, including higher response, fast response/recovery speed, low detection limit and good selectivity.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Yuwei Qu, Zhichao Song, Jun Zhang
Summary: Highly sensitive and long-term stable ethanol gas sensors based on 3D urchin-like ZnO micro/nanospheres are synthesized. The sensors exhibit a high sensitivity of 15.0, fast response and recovery times of 14 seconds and 7 seconds respectively when detecting 200 ppm ethanol gas at 280 degrees C. After 450 days of storage, the sensors still maintain a sensitivity of 5.9 towards 200 ppm ethanol gas at the same operating temperature.
Article
Chemistry, Analytical
Ozlem Barin, Ahmad Ajjaq, Ali Orkun Cagirtekin, Irmak Karaduman Er, Memet Ali Yildirim, Aytunc Ates, Selim Acar
Summary: This study proposes an effective approach to develop and tune hydrogen gas sensors by studying the effect of nucleation layers and chemical stabilizing agents. The results show that the synthesis methods and coating techniques significantly affect the morphology and gas sensing performance of the sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Polymer Science
Mohammad Kamal Hossain, Qasem Ahmed Drmosh
Summary: A simple and hands-on process was used to fabricate polymer-templated hydrophobic nanostructures for hydrogen gas sensing platforms. High-resolution FESEM revealed double-layer structures with nanoscale flower-like petals and the wetting contact angle was approximately 142.0 degrees. Palladium sputtering resulted in a thinner layer with a contact angle of around 130.0 degrees, showing potential for higher gas adsorption sites. The stable and durable surface nanostructures were tested for H-2 gas sensing performance, demonstrating their dual role in hydrophobicity and superior gas-sensing characteristics.
Article
Chemistry, Multidisciplinary
Lun Tan, Xianzhen Liu, Peng Wu, Liwei Cao, Wei Li, Ang Li, Zhao Wang, Haoshuang Gu
Summary: The research and development of high-performance NH3 sensors is important for environment monitoring and disease diagnosis applications. TiO2-modified monolayer MoS2 films with controllable TiO2 loading contents were fabricated and showed enhanced room-temperature NH3 sensing performance. The TiO2/MoS2 system with 95% surface coverage of TiO2 exhibited improved sensor response, low detection limit, wide detection range, good repeatability, and superior selectivity against other gases. The TiO2 modification improved the surface reactivity of the sensing layers and acted as gas-gating layers to modulate the electron depletion layer and the conductivity of the MoS2 films, resulting in improved NH3 sensing performance. This n-n hetero-compositing strategy provides a simple and cost-effective approach for developing high-performance NH3 sensors based on 2D semiconductors.
Article
Crystallography
Mohammad R. Alenezi, Abdullah M. Almeshal
Summary: Developing new bottom-up fabrication methods to control the physical properties of active materials for high-performance devices is essential. The hydrothermal method reported in this article produces ZnO bridging nanowire sensors without the need for a seed layer and with site-selectivity. By controlling the growth environment, the performance of the sensors is enhanced, with improved sensitivity to acetone gas and faster response and recovery times.
Review
Biochemistry & Molecular Biology
Nayeem Ahmad Pandit, Tokeer Ahmad
Summary: In this review, the application of tin oxide and its composites in gas sensing is comprehensively discussed, focusing on the sensing mechanisms, synergistic effects, and methods to achieve high selectivity, sensitivity, and rapid response speed. The review highlights the recent advances in tin oxide and its composites for gas sensing applications, as well as the challenges and future prospects in this field.
Review
Chemistry, Physical
Tingting Zhou, Tong Zhang
Summary: With the advancement of nanoscience and nanotechnology, nanomaterials with unique properties have gained more attention in the field of electronic sensors, especially in gas sensing devices. Recent achievements have led to a new wave of research in designing advanced sensing materials with different dimensional structures. The sensitivity and performance of these materials are closely related to their structure, electronic properties, and surface chemistry, influencing various gas sensing applications such as environmental monitoring and flexible wearable electronics.
Article
Chemistry, Inorganic & Nuclear
Shiyu Zhou, Jiapeng Ji, Tong Qiu, Liguang Wang, Wenbin Ni, Sheng Li, Wenjun Yan, Min Ling, Chengdu Liang
Summary: The study designed a composite material based on ZIF-8 derived ZnO, functionalized with rGO to enhance the selectivity of H-2 sensing, achieving significant results.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Review
Chemistry, Analytical
Ricardo Matias Trujillo, Daniela Estefania Barraza, Martin Lucas Zamora, Anna Cattani-Scholz, Rossana Elena Madrid
Summary: In recent years, nanomaterials have been widely used in optimizing electrochemical sensors for H2O2 sensing, with electrodes made of metal nanoparticles combined with organic and inorganic molecules to enhance sensing capabilities. The review article provides an overview of different nanomaterials, molecules, polymers, and transduction methods used in these devices, comparing their performance based on sensitivity values, limit of detection, and linear range of application reported in the literature.
Article
Chemistry, Inorganic & Nuclear
Jiaying Liu, Tiezhu Xin, Zizhen Yang, Weixun Hao, You Wang, Juanyuan Hao
Summary: A Bi2S3/ZnS heterostructure has been developed as a sensing material with improved sensitivity towards H2S, especially in dark conditions. The sensor shows high response rate, excellent selectivity, and stability, making it suitable for practical applications in dark and humid environments.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Environmental Sciences
Zahra Saeed Khan, Muhammad Rizwan, Muhammad Hafeez, Shafaqat Ali, Muhammad Rizwan Javed, Muhammad Adrees
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Chemistry, Physical
Shafiq Ur Rehman, Muhammad Hafeez, Waqar Uddin, Sayed Ali Khan, Qixiao Lu, Liu Wei, Muhammad Saeed, Muhammad Sohail, Awais Siddique Saleemi, Sachin Kumar, Ling Zhu
APPLIED SURFACE SCIENCE
(2019)
Article
Chemistry, Physical
Shafiq Ur Rehman, Bin Amin, Muhammad Hafeez, Sayed Ali Khan, Irshad Ahmad Mir, Waqar Uddin, Liu Wei, Ling Zhu
APPLIED SURFACE SCIENCE
(2020)
Article
Chemistry, Physical
Muhammad Hafeez, Shafiq Ur Rehman, Awais Siddique Saleemi, Muhammad Saeed, Ling Zhu
APPLIED SURFACE SCIENCE
(2019)
Article
Chemistry, Physical
Irshad A. Mir, Masroor A. Bhat, Zahir Muhammad, Shafiq Ur Rehman, Muhammad Hafeez, Qasim Khan, Ling Zhu
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Crystallography
Awais Siddique Saleemi, Muhammad Saeed, Muhammad Hussan, Shafiq Ur Rehman, Muhammad Hafeez, Shahid Mehmood, M. Aurang Zeb Gul Sial, Shern-long Lee
Article
Environmental Sciences
Muhammad Adrees, Zahra Saeed Khan, Shafaqat Ali, Muhammad Hafeez, Sofia Khalid, Muhammad Zia Ur Rehman, Afzal Hussain, Khalid Hussain, Shahzad Ali Shahid Chatha, Muhammad Rizwan
Article
Environmental Sciences
Zahra Saeed Khan, Muhammad Rizwan, Muhammad Hafeez, Shafaqat Ali, Muhammad Adrees, Muhammad Farooq Qayyum, Sofia Khalid, Muhammad Zia Ur Rehman, Muhammad Aleem Sarwar
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Physics, Condensed Matter
Muhammad Saeed, Waqar Uddin, Awais Siddique Saleemi, Muhammad Hafeez, Madiha Kamil, Irshad Ahmad Mir, Sunila, Rooh Ullah, Shafiq Ur Rehman, Zhu Ling
PHYSICA B-CONDENSED MATTER
(2020)
Article
Engineering, Electrical & Electronic
Muhammad Hafeez, Bandar Ali Al-Asbahi, Mohammad Hafizuddin Hj Jumali, Muhammad Yahaya, Fakharul Inam, Muhammad Fahad Bhopal, Arshad S. Bhatti
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2020)
Article
Chemistry, Physical
Muhammad Hafeez, Awais Siddique Saleemi, Shafiq Ur Rehman, Muhammad Adrees, Shahid Mehmood, Irshad A. Mir, Ling Zhu
Summary: Chromium (III) oxide, synthesized through CVD method with Iodine as an assisting material, exhibits a unique layered structure similar to graphene and other TMDCs. Raman spectroscopy was employed to predict the anti-ferromagnetic ordering of spin in Cr2O3 hexagonal flakes, while PL spectroscopy revealed the creation of magnon states due to layer stacking and ordering. The stability and reliability of the flakes for spintronic devices were tested using photo-detector response measurements.
APPLIED SURFACE SCIENCE
(2021)
Article
Environmental Sciences
Muhammad Adrees, Zahra Saeed Khan, Muhammad Hafeez, Muhammad Rizwan, Khalid Hussain, Muhammad Asrar, Mohammed Nasser Alyemeni, Leonard Wijaya, Shafaqat Ali
Summary: The study showed that ZnO NPs can promote the growth of wheat, with the best results seen at 100 mg/L under normal moisture conditions. In grains, the Cd concentrations decreased by 26%, 81%, and 87% when using 25, 50, and 100 mg/L NPs, respectively, under normal moisture conditions, and decreased by 35%, 66%, and 81% under water deficit conditions.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Chemistry, Physical
Shafiq Ur Rehman, Abdus Samad, Muhammad Saeed, Bin Amin, Muhammad Hafeez, Irshad A. Mir, Ling Zhu
Summary: The ZrS2 monolayer exhibits promising electrochemical performance in LIBs, but issues such as reversibility and cycle life can be improved by capping it with graphene, which also provides mechanical strength and conducting channels. The hybrid of ZrS2 and graphene serves as a highly efficient 2D anode material for Li ion batteries.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Awais Siddique Saleemi, Muhammad Hafeez, Aqsa Munawar, Naeem Akhtar, Waseem Abbas, Muhammad Ehsan Mazhar, Zahid Shafiq, Anthony P. Davis, Shern-Long Lee
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Review
Chemistry, Multidisciplinary
Muhammad Hafeez, Lin Gan, Arshad Saleem Bhatti, Tianyou Zhai
MATERIALS CHEMISTRY FRONTIERS
(2017)