Article
Materials Science, Ceramics
Haifeng Liu, Chengbo Li, Ruishi Xie, Jie Li, Guohua Ma, Kui Zheng, Xingquan Zhang, Heyan Huang, Tongjiang Peng, Jichuan Huo
Summary: Different La1-xBaxMnO3+delta nanopowders were prepared using a traditional sol-gel method and showed excellent gas-sensing performance towards acetone. The Ba2+ doping agent can enhance the response of the sensor towards acetone by converting Mn3+ to Mn4+ and introducing hole carriers into the semiconductor, while also promoting the conduction rate and gas sensing speed. These results suggest the potential applicability of La1-xBaxMnO3+delta perovskite-type structures in industrial acetone sensing.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Jun Min Suh, Donghwi Cho, Sangmin Lee, Tae Hyung Lee, Jae-Wook Jung, Jinho Lee, Sung Hwan Cho, Tae Hoon Eom, Jung-Wuk Hong, Young-Seok Shim, Seokwoo Jeon, Ho Won Jang
Summary: This study focuses on highly porous and periodic 3D TiO2 nanostructures for indoor air quality monitoring. The nanostructures show unprecedented gas response and extremely fast response time, providing promising perspectives for the development of chemoresistive gas sensors in the Internet of Everything application.
Article
Energy & Fuels
Jun Zhang, Shao-Hua Luo, Li-Li Sui, Qun-Xiang Ren, Yan Qin, Da-Jun Zhang
Summary: Neodymium-ion doping has been found to have an effect on the crystalline microstructure, crystal appearance, and electrochemical parameters of LiMnPO4/C cathodes. Proper neodymium-ion doping can enhance lithium-ion diffusivity and improve the high-rate performance of the cathode materials, as demonstrated by the LiMn0.94Nd0.06PO4/C sample.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Adele R. Latypova, Maxim D. Lebedev, Ilya A. Tarasyuk, Alexander I. Sidorov, Evgeniy V. Rumyantsev, Artur S. Vashurin, Yuriy S. Marfin
Summary: A one-step synthesis method for organomodified silica materials using a special surfactant DDAO was developed in this study, eliminating the need for heat treatment. SEM images revealed that all obtained materials had similar spherical morphology with a particle diameter of about 500 nm. The catalytic activity experiments showed that the amino-modified matrix exhibited the highest activity, while the phenyl-modified matrix demonstrated low activity due to hydrophobic interactions hindering product diffusion.
Article
Chemistry, Multidisciplinary
Musa Mohamed Zahidi, Mohamad Hafiz Mamat, A. Shamsul Rahimi A. Subki, Mohd Hanapiah Abdullah, Hamizura Hassan, Mohd Khairul Ahmad, Suriani Abu Bakar, Azmi Mohamed, Bunsho Ohtani
Summary: This study fabricated a unique nanorod-assembled actinomorphic-flower-like microsphere structured film of tantalum (Ta)-doped titanium dioxide. The Ta-doped TiO2 actinomorphic-flower-like microsphere (TAFM) was prepared via the solution immersion method. Characterization of the samples using various techniques showed that the rutile-phased TAFM sample had finer nanorods with enhanced electrical properties. It was also found that the TAFM exhibited high electron trap density and showed promising results as a resistive-type sensing film for a humidity sensor.
Article
Chemistry, Physical
Fanpu Meng, Jinyong Hu, Can Liu, Yuming Tan, Yong Zhang
Summary: The gas sensor based on YbFeO3 nanocrystallines showed the best response ability and selectivity towards acetone gas among the sensors fabricated using different lanthanide elements. The rapid response/recovery characteristic and low detection limit of the YbFeO3 gas sensor can be attributed to the low binding energy of the Ln-O bond in lanthanide.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Rishuang Jing, Zhuoxin Yang, Li Sun, Zhongquan Nie, Zhichao Yu, Ensi Cao
Summary: Pr6O11-loaded ZnO sensor with a Pr/Zn ratio of 0.05 exhibited the highest gas response to acetone, with relatively high repeatability, stability, and selectivity. The improved sensing performance can be attributed to the larger electron depletion region and higher Schottky barrier height in the ZnO nanorods caused by electron transfer from ZnO to Pr6O11 across the interface.
Article
Chemistry, Inorganic & Nuclear
Carla Nunes de Melo, Yuri Blanc Rodrigues, Patricia Alejandra Robles-Azocar
Summary: Using Pd/SiO2 prepared through a conventional sol-gel method as a catalyst, the oxidation of the sesquiterpene isolongifolene resulted in isolongifolen-9-one with high selectivity. Other oxygenated products were also observed with a total yield of 94%. The system showed potential for oxidation of other sesquiterpenes with high yields. Pd (II) was used as the sole catalyst under mild conditions without co-oxidants, and the catalyst can be easily recovered and re-used while maintaining activity and selectivity.
INORGANICA CHIMICA ACTA
(2021)
Article
Materials Science, Ceramics
Qin Ma, Jinshan Yang, Yudong Xue, Jianbao Hu, Xiangyu Zhang, Shaoming Dong
Summary: This study investigated the synthesis mechanism and phase stability of square z-Y2Si2O7 using Y(NO3)3•6H2O and tetra ethoxy orthosilicate as precursors. It was found that lower precursor concentration is beneficial for the formation of a homogeneous yttrium silica network gel and stable z-Y2Si2O7 was achieved at 800 degrees C. The maximum stable temperature of z-Y2Si2O7 was found to be less than 1050 degrees C.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Review
Biochemistry & Molecular Biology
Mariuca Gartner, Hermine Stroescu, Daiana Mitrea, Madalina Nicolescu
Summary: This review highlights the importance of Zn for the synthesis of multifunctional materials with interesting properties. Various strategies such as appropriate synthesis routes, doping and co-doping of ZnO films, and the addition of polymers are discussed. ZnO can be used in thin films, mixed layers, and composite films, and it can be doped with metals or non-metals. ZnO has multiple applications in sensing technology, piezoelectric devices, transparent conductive oxides, solar cells, and photoluminescence.
Article
Materials Science, Multidisciplinary
Bouabida Seddik, Benkara Salima, Ghamri Houda
Summary: Fe-doped ZnO (FZO) nanostructures were prepared with varying Fe concentrations and their effects on the structural, morphological, optical properties, and response to iso-butane gas were studied. The results showed that Fe doping significantly influenced the performance of ZnO nanostructures, with the 3 wt.% Fe-doped ZnO exhibiting excellent sensitivity to iso-butane gas.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Carlos E. Caballero-Guerecaa, M. R. Alfaro Cruza, E. Luevano-Hipolitoa, Leticia M. Torres-Martinez
Summary: Highly transparent ZnO films were successfully deposited on glass substrates using the sol-gel technique. The quality of the films was influenced by the concentration of zinc in the precursor solution and the annealing temperature. The films showed good crystallinity and preferential orientation, and exhibited high transmittance of over 90%.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Ceramics
Maria Eugenia Cruz, Joaquin Fernandez, Alicia Duran, Rolindes Balda, Yolanda Castro
Summary: Transparent oxyfluoride glass-ceramic (OxGCs) coatings with composition 1.2Nd3+ 80SiO2- 20LaF3 were prepared using a sol-gel route combined with a pre-crystallized nanoparticles route. These coatings consist of fluoride nanocrystals in a glass matrix and have shown promising results in powders and bulk glass-ceramics. In this study, aqueous suspensions of Nd3+-doped LaF3 nanoparticles were prepared and incorporated into a silica sol to form particulate sols. The resulting coatings exhibited well-structured crystalline-like emission spectra with lifetimes of 520 and 440 μs.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Ceramics
Yanan Gao, Juncheng Liu, Beiping Dong
Summary: The Sb-doped SnO2-SiO2 film shows reduced crystallinity with Sb doping, exhibiting M-shaped changes in lattice parameters with increasing Sb concentration. Nanoparticle size decreases and then increases with Sb doping levels above 6 mol%. Additionally, the transmittance of the glass substrate coated with this film decreases, while resistance and dust removal performance exhibit complex changes with varying Sb concentrations. At 12 mol% Sb doping, the film exhibits minimal resistance and a 64% dust removal performance.
CERAMICS INTERNATIONAL
(2021)
Review
Biochemistry & Molecular Biology
Yasser H. Ochoa-Munoz, Ruby Mejia de Gutierrez, Jorge E. Rodriguez-Paez
Summary: Metal oxide (MOx) gas sensors have attracted considerable attention for their potential in detecting toxic gases and volatile organic compounds (VOCs). They are expected to play a key role in various fields such as home and public security, environmental monitoring, chemical quality control, and medicine. In particular, the detection of acetone vapors using MOx-type sensors shows promise for noninvasive medical diagnosis, such as in diabetic patients.
Review
Chemistry, Inorganic & Nuclear
Tor Havard Aasen, Dag Herman Zeiner-Gundersen, Sindre Zeiner-Gundersen, Per Ohlckers, Kaiying Wang
Summary: Focused on the experimental study of Rydberg Matter (RM) for 30 years, this condensed excited matter formed by clusters of Rydberg atoms at a solid surface has potential applications in catalysis, space phenomena, and sensor technologies, yet lacks widespread attention. RM has a longer lifetime and liquid-like properties compared to ordinary Rydberg atoms.
JOURNAL OF CLUSTER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Chaoqun Cheng, Kim R. Gustavsen, Kaiying Wang
Summary: In this study, a significant resonant visible absorption was discovered in metal-oxides, induced by plasmons, which effectively enhanced the transfer of photogenerated charge carriers. This breakthrough not only advances titanium-oxides nanocomposites towards plasmonic chemistry in the visible-light region, but also highlights a potential general route to harnessing photons beyond the bandgap limitation based on plasmonic metal-oxides nanocomposites.
Review
Chemistry, Physical
Lin Wang, Yijun Feng, Kaiying Wang, Guohua Liu
Summary: This study aims to review the state-of-art knowledge on solar water sterilization using photothermal nanomaterials to enhance efficiency and affordability of water treatment. It describes the basic principle of solar water sterilization, summarizes the engineering design of photothermal materials, and analyzes their crucial role in reactor configurations for improving sterilization performance.
Review
Physics, Applied
Zheyan Wang, Hao Huang, Gang Li, Xiaohui Yan, Zhichao Yu, Kaiying Wang, Yucheng Wu
Summary: Solar-driven water splitting using perovskite oxides is an efficient process for converting solar energy into chemical energy. Despite the current low conversion efficiency, innovative modification techniques have the potential to improve the performance in the visible light range and enable practical applications in the future.
APPLIED PHYSICS REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Yijun Feng, Guohua Liu, Jinliang Xu, Kaiying Wang, Wenbin Mao, Guansheng Yao
Summary: Particle separation can be achieved by the fast dynamics of droplet impact on soap films. This viscous separation can be controlled in a deterministic manner by selectable impact parameters. This study is important for soft matter research and the study of droplets with colloid and surface chemistry.
Review
Physics, Multidisciplinary
Guohua Liu, Jinliang Xu, Ting Chen, Kaiying Wang
Summary: Plasmonics offers unprecedented control over light and has great potential for applications in solar energy. The surface plasmon resonance is responsible for enhanced light scattering and absorption. Plasmon excitations in nanostructures can be tuned to control hot-carrier emission and release heat at the nanoscale. Spectrally and thermally engineered plasmonic nanomaterials attract considerable attention for solar energy applications due to their distinct thermoplasmonic properties.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Kim Robert Gustavsen, Erik Andrew Johannessen, Kaiying Wang
Summary: In this study, a simple method was developed to prepare uniform Cu(OH)2 nanoneedle films through pre-treatment and anodization. The films exhibited excellent catalytic properties, favoring CO2 reduction with suppressed methane production.
Article
Nanoscience & Nanotechnology
Zhou Zhao, Zengxing Zhang, Junmin Jing, Rui Gao, Zhiwei Liao, Wenjun Zhang, Guohua Liu, Yonghua Wang, Kaiying Wang, Chenyang Xue
Summary: Black silicon, as a representative of micro/nano-textured silicon, has excellent light absorption properties and is gradually replacing standard silicon in photoelectric devices. This article summarizes recent theoretical and experimental breakthroughs in near-infrared and ultraviolet detection using black silicon. The application of black silicon in infrared detection is discussed, including the use of element doping, localized surface plasmon resonance effect, and heterojunction formation. Additionally, the application of black silicon in ultraviolet detection through induced junction and self-built electric field is introduced. The growing potential of black silicon in near-infrared and ultraviolet detection applications, such as infrared night vision imaging and national defense early warning, is further discussed.
Review
Engineering, Environmental
Zubair Masaud, Guohua Liu, Lars Eric Roseng, Kaiying Wang
Summary: Pulsed electrocatalysis presents a promising alternative for achieving higher process control, enhanced efficiency, and improved selectivity in electrochemical processes. This article provides a comprehensive overview of pulsed electrocatalysis, including mechanistic details, process parameter optimization, and demonstrations of its potential in cutting-edge applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Tao Feng, Guohua Liu, Gang Li, Yan Li, Jianguo Liang, Kaiying Wang
Summary: Supercapacitors are a promising energy storage solution in the face of increasing demand for electrification. This review summarizes recent progress on iron-based materials in supercapacitors, focusing on their applications and techniques for enhancing performance, as well as future challenges.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yi Zhang, Guoli Zhang, Juncheng Wu, Jiangyong Yu, Gang Li, Taotao Guan, Kaiying Wang
Summary: Porous carbon nanosheets (PCNs) were obtained by regulating the abundance of the dangling-bonds grafted on the CTP molecules. The PCNs showed high specific capacitance and good electrochemical performance due to their large specific surface area, suitable pore structure, and good two-dimensional structure. Assembled symmetrical EDLCs using K+ DES electrolyte exhibited satisfactory energy density and could work in a wide temperature range from -40°C to 75°C, opening up a new way for large-scale preparation of electrode materials suitable for ultra-low temperature capacitors.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xiaohui Yan, Gang Li, Kai Shen, Congwei Wang, Kaiying Wang
Summary: Nanostructured hematite shows promise as a semiconductor for PEC water oxidation but suffers from inadequate charge separation and sluggish kinetics. In this study, a nanotubular Fe2O3/Fe3O4 p-n heterojunction with dual IEFs is prepared, which promotes charge carrier separation/migration and enhances PEC performance. The addition of In2O3 clusters forms a second IEF and further improves the hole-collection efficiency. The composite photoanode achieves a state-of-the-art current density and a superior photon-to-current efficiency, making it a potential candidate for efficient PEC catalysts.
Article
Chemistry, Multidisciplinary
Hao Huang, Kaiying Wang
Summary: Conductive metal-organic frameworks exhibit excellent single-atom electrocatalytic activities, but their application is limited by the fragility of the coordinated frameworks. This study presents a metal-covalent organic framework strategy to construct a catalyst for nitrate reduction, which provides abundant metal sites and a reasonable platform for studying the catalytic mechanism of single-metal atoms.
Article
Chemistry, Multidisciplinary
Nan Zhang, Gang Li, Zhichao Yu, Zhenguo Tang, Xiaoyan Liu, Congwei Wang, Kaiying Wang
Summary: This work demonstrates the tuning of interfacial electronic properties by spontaneous photodeposition of metallic cluster co-catalyst on edge active sites, leading to enhanced charge carrier separation and surface redox reactions, thus resulting in superior photocatalytic performance.
Article
Chemistry, Physical
Kim R. Gustavsen, Kaiying Wang
Summary: The importance of using copper-based catalysts for CO2 electrochemical reduction to achieve storage of renewable energy multi-carbon products is discussed in the article, pointing out the non-selectivity of copper-based catalysts and the key factors in regulating their selectivity.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
