Article
Chemistry, Physical
Omer Coban, Suleyman Tekmen, Emre Gur, Sebahattin Tuzemen
Summary: In this study, NiO and WO3 oxide semiconductors were prepared on glass substrates using RF Magnetron Sputtering technique and their structural and optical properties were characterized. The optical responses of these semiconductors to hydrogen gas were investigated and it was found that they exhibited different optical absorption changes in the wavelength range of 450-850 nm. Palladium coating significantly improved the response and recovery times of NiO sensors and increased their response to high concentrations of H-2 gas by approximately 150%.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Rohan B. Ambade, Hojae Lee, Ki Hhyun Lee, Hyeonhoo Lee, Ganesh Kumar Veerasubramai, Young-Beom Kim, Tae Hee Han
Summary: Ultrafast flashlight sintering (FLS) was used to fabricate mesoporous ultrathin NiO nanosheets on carbon cloth (CC) as green electrodes for flexible supercapacitors (SCs). The FLS-NiO@i12J electrodes exhibited remarkable specific capacity and outperformed conventional thermally annealed (CTA) NiO electrodes. The flexible FLS-NiO@i12J//rGO asymmetric SCs showed remarkable energy density and cycling stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Lingxiao Xue, Yuan Ren, Yanyan Li, Wenhe Xie, Keyu Chen, Yidong Zou, Limin Wu, Yonghui Deng
Summary: In this study, Pt-Pd/SnO2 nanoalloy functionalized mesoporous microspheres were successfully synthesized for real-time monitoring of methane. The synthesized material exhibited excellent sensing performance and stability.
Article
Chemistry, Multidisciplinary
Xiao Wang, Jieqiong Qin, Qi Hu, Pratteek Das, Pengchao Wen, Shuanghao Zheng, Feng Zhou, Liang Feng, Zhong-Shuai Wu
Summary: In this study, a new type of two-dimensional mesoporous nanosheets is developed for a co-planar integrated microsystem of zinc ion microbattery and gas sensor. These nanosheets exhibit unique triple functionality and demonstrate superior electrical performance, mechanical stability, and smart integration.
Article
Chemistry, Multidisciplinary
Aoqun Jian, Junhe Wang, Hongying Lin, Shiqiang Xu, Dan Han, Zhongyun Yuan, Kai Zhuo
Summary: MoS2 nanochains were successfully prepared using a facile electrospinning and hydrothermal process. The morphology of MoS2 nanochains was evaluated using field emission scanning electron microscopy and high-resolution transmission electron microscopy. A slurry composed of MoS2 nanochains was coated on a silver electrode for ammonia detection, showing a detection range of 25-500 ppm. The MoS2 nanochains exhibited excellent sensing response, reproducibility, selectivity, and a detection limit of 720 ppb. The responsiveness of MoS2 nanochains to ammonia remained unchanged for 1 week.
Article
Multidisciplinary Sciences
Mabel Rodriguez-Fernandez, Jose Carlos Pineno, Rodrigo Alcantara, Juan Jesus Gallardo, Javier Navas
Summary: In recent years, perovskite-type materials have drawn great attention due to their interesting characteristics, such as luminescent properties. The ability to tune the emission wavelength, along with high photoluminescence quantum yields, has opened up various applications for these materials, such as sensors and LEDs. In this study, Pd-doped CsPbBr3 perovskite nanocrystals emitting in the near infrared region were synthesized and characterized. The results show promising potential for using these nanocrystals as sensors in the field of nanobiomedicine in the future.
Article
Chemistry, Multidisciplinary
Jiacheng Yang, Yingang Gui, Yunfeng Wang, Shasha He
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
Chemistry, Physical
K. Gunasekaran, S. Athithya, M. Navaneethan, S. Harish, J. Archana
Summary: A novel two-dimensional hexagonal mesoporous nickel oxide and titanium substituted nickel oxide nanosheets were synthesized and used as counter electrodes in dye-sensitized solar cells, showing excellent electrochemical and photovoltaic performance. The high performance of nickel oxide-based and 1-TNO-based counter electrodes can be attributed to the high specific surface area and mesoporous nature of the nanosheet structure.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Qingting Li, Wen Zeng, Qu Zhou, Zhongchang Wang
Summary: This article reports on ethanol gas sensors using NiO hollow spheres assembled from nanoparticles, nanoneedles, and nanosheets. The sensors showed good response to ethanol and had a larger surface area and stability. The template-free preparation of the sensors also saved time and cost.
Article
Chemistry, Analytical
Chunyan Li, Pil Gyu Choi, Kyusung Kim, Yoshitake Masuda
Summary: This paper discusses the direct fabrication of ultrathin Ni(OH)2 nanosheets on substrates via a solvothermal process. The thickness and morphology of the nanosheets can be controlled by manipulating the ethanol content in the solvent. The 75% ethanol-based NiO gas sensor demonstrates ultrahigh acetone sensitivity, ultralow detection limit, good stability, and superior acetone selectivity. Low cost NiO nanosheets fabricated via a simple process could be considered as potential candidates for commercial acetone sensing applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Multidisciplinary
Chunyan Li, Pil Gyu Choi, Yoshitake Masuda
Summary: NiO nanosheets were synthesized using a facile solvothermal method and used as gas sensors to analyze the exhaled biomarker of psychological stress, allyl mercaptan (AM) gas. MnO2 nanosheets were also synthesized onto the surfaces of the NiO nanosheets to enhance gas-sensing performance. The gas-sensing response of the NiO nanosheet sensor was found to be higher compared to the MnO2@NiO nanosheet sensor.
Article
Chemistry, Multidisciplinary
Abhishek Kumar, Yaoli Zhao, Shema Rachel Abraham, Thomas Thundat, Mark T. Swihart
Summary: A low-cost sensor using Pd alloy nanosheets on paper is developed for sensitive detection of hydrogen gas. The sensor exhibits improved stability and lower detection limit compared to conventional interdigitated electrode-based sensors. This simple manufacturing method opens up possibilities for widespread use in fuel-cell vehicles and related infrastructure.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
Xiafen Hu, Xiang Li, Xiaoxia Wang, Huayan Zhang, Chaoqi Zhu, Jinjin Wu, Changsheng Xie, Dawen Zeng
Summary: 2D ultra-thin mesoporous WO3 nanosheets exhibit outstanding sensing properties for ppb-level C2H6S3 detection, with high sensitivity and selectivity, which can be very helpful for biomarker identification.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Mariana Chelu, Paul Chesler, Mihai Anastasescu, Cristian Hornoiu, Daiana Mitrea, Irina Atkinson, Costin Brasoveanu, Carmen Moldovan, Gabriel Craciun, Marin Gheorghe, Mariuca Gartner
Summary: With the rapid development of urbanization and industry, the emissions of volatile organic compounds (VOCs) in the atmosphere have increased dramatically, causing a significant impact on human health. Therefore, the development of new and cheap detection devices for VOCs has become a topic of high interest. In this study, ZnO/NiO heterostructures were synthesized for the detection of formaldehyde, which showed promising performance at room temperature.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Analytical
Xinyu Liu, Cuiping Jia, Xin Liu, Jiabing Luo, Yan Zhou, Wenle Li, Shutao Wang, Jun Zhang
Summary: Ag-doped mesoporous In2O3 synthesized through hydrothermal and calcination methods exhibited enhanced sensitivity and adsorption performance in gas sensing, specifically towards ethanol.
Article
Chemistry, Physical
Tran Thanh Tung, Nguyen Viet Chien, Nguyen Van Duy, Nguyen Van Hieu, Md Julker Nine, Campbell J. Coghlan, Diana N. H. Tran, Dusan Losic
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2019)
Article
Chemistry, Analytical
Nguyen Van Hoang, Chu Manh Hung, Nguyen Duc Hoa, Nguyen Van Duy, Inkyu Park, Nguyen Van Hieu
SENSORS AND ACTUATORS B-CHEMICAL
(2019)
Article
Chemistry, Physical
Swathi Ippili, Venkatraju Jella, Ji-Ho Eom, Jaegyu Kim, Seungbum Hong, Jin-Seok Choi, Van-Dang Tran, Nguyen Van Hieu, Yun-Jeong Kim, Hye-Jin Kim, Soon-Gil Yoon
Article
Engineering, Electrical & Electronic
Do Dang Trung, Nguyen Duc Cuong, Pham Long Quang, Nguyen Thi Ngoc Anh, Duong Tuan Quang, Pham Cam Nam, Khuc Quang Trung, Son Tang Nguyen, Nguyen Van Hieu
SENSORS AND ACTUATORS A-PHYSICAL
(2019)
Article
Chemistry, Analytical
Trinh Minh Ngoc, Nguyen Van Duy, Nguyen Duc Hoa, Chu Manh Hung, Hugo Nguyen, Nguyen Van Hieu
SENSORS AND ACTUATORS B-CHEMICAL
(2019)
Article
Nanoscience & Nanotechnology
Lai Van Duy, Nguyen Hong Hanh, Dang Ngoc Son, Pham Tien Hung, Chu Manh Hung, Nguyen Van Duy, Nguyen Duc Hoa, Nguyen Van Hieu
JOURNAL OF NANOMATERIALS
(2019)
Article
Chemistry, Physical
Nguyen Xuan Thai, Nguyen Van Duy, Nguyen Van Toan, Chu Manh Hung, Nguyen Van Hieu, Nguyen Duc Hoa
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Analytical
Phan Hong Phuoc, Nguyen Ngoc Viet, Le Viet Thong, Chu Manh Hung, Nguyen Duc Hoa, Nguyen Van Duy, Hoang Si Hong, Nguyen Van Hieu
Summary: The study explored the gas-sensing performance of composite nanofibers with internal and external hetero-junctions of ZnO-SnO2, revealing enhanced response compared to mixed nanofibers. The gas-sensing mechanism of the hetero-nanojunctions was analyzed, attributing the remarkable gas sensing performance to the formation of internal heterojunctions.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Nanoscience & Nanotechnology
Thao Dao Vu Phuong, Thuy-Linh Phi, Bui Huu Phi, Nguyen Van Hieu, Son Tang Nguyen, Tu Le Manh
Summary: This study provides a comprehensive investigation into the early stage of copper electrodeposition from a choline chloride-urea deep eutectic solvent (DES), revealing that copper deposition can be directly performed from a DES containing a small amount of water using a single potentiostatic step technique. Theoretical modeling confirms the mechanism of direct electronucleation of copper nanoparticles in the DES, and kinetic parameters play a crucial role in controlling the morphology and chemical composition of the obtained nanoparticles, as verified by surface characterization techniques.
JOURNAL OF NANOMATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Nguyen Manh Hung, Chu Manh Hung, Nguyen Van Duy, Nguyen Duc Hoa, Hoang Si Hong, Tran Khoa Dang, Nguyen Ngoc Viet, Le Viet Thong, Phan Hong Phuoc, Nguyen Van Hieu
Summary: A unique combination of nanojunction-networked SnO2 nanowires and pulsed UV-radiation shows high response gas sensors working at room temperature. The pulsed UV-radiation significantly enhances gas response and reduces response and recovery times. The enhancement of gas response is attributed to the photogeneration of electron-hole pairs.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Analytical
Vo Thanh Duoc, Chu Manh Hung, Hugo Nguyen, Nguyen Van Duy, Nguyen Van Hieu, Nguyen Duc Hoa
Summary: The grafted structures between SnO2 and ZnO nanowires were achieved through a two-step growth process, showing promising sensitivity for NO2 gas sensing.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Tran Thi Ngoc Hoa, Nguyen Van Duy, Chu Manh Hung, Nguyen Van Hieu, Ho Huu Hau, Nguyen Duc Hoa
Article
Chemistry, Multidisciplinary
Nguyen Tat Thang, Le Thi Hong, Thoan Hoang Nguyen, Chu Manh Hung, Nguyen Van Duy, Nguyen Van Hieu, Nguyen Duc Hoa
Article
Chemistry, Multidisciplinary
Tran Thi Ngoc Hoa, Nguyen Duc Hoa, Nguyen Van Duy, Chu Manh Hung, Dang Thi Thanh Le, Nguyen Van Toan, Nguyen Huy Phuong, Nguyen Van Hieu
Article
Chemistry, Multidisciplinary
Le Lam Son, Nguyen Duc Cuong, Tran Thi Van Thi, Le Trung Hieu, Do Dang Trung, Nguyen Van Hieu
