Article
Chemistry, Physical
Eric Navarrete, Frank Guell, Paulina R. Martinez-Alanis, Eduard Llobet
Summary: Different thicknesses of Au films were used in the growth of ZnO nanowires, with the 6 nm thick layers showing the most stable and repeatable gas sensing properties. Despite ZnO nanowires grown using the thickest Au layers reaching the highest responses under dry conditions, those grown using the thinnest Au film were more resilient at detecting NO2 in the presence of ambient moisture. The gas sensing results were discussed in light of defects and Au impurities in the ZnO nanowires, as revealed by characterization techniques such as X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and photoluminescence spectroscopy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Shu-Meng Yang, Hsi-Kai Yen, Kuo-Chang Lu
Summary: In this study, high-density and crystalline indium tin oxide nanowires (ITO NWs) were synthesized by chemical vapor deposition, and silver nanoparticles were decorated on the surface of the NWs using an electrochemical method. The ITO NWs exhibited visible light-emitting properties and high resistivity, indicating their potential application in electronic and optoelectronic devices.
Article
Chemistry, Multidisciplinary
Roman Bashkurov, Yosi Kratish, Natalia Fridman, Dmitry Bravo-Zhivotovskii, Yitzhak Apeloig
Summary: Thermolysis of tris(silyl) tin hydride 2 at 70 degrees C for 3 hours leads to the formation of various silyl-stannylene compounds, including the novel octastannacubane 9; the mechanism of this reaction mainly involves elimination reactions and dimerization reactions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
Yufeng Tao, YunPeng Ren, Xuejiao Wang, Rui Zhao, Jingwei Liu, Chunsan Deng, Chengbo Wang, Wenguang Zhang, Hui Hao
Summary: The study unexpectedly discovered a femtosecond laser deposition (fs-LD) technique for fabricating Tin-oxide gas sensors with high morphological control and gas detection capabilities. By tuning the laser exposure dose, the morphology of SnO2 nanostructures can be controlled, leading to the creation of gas sensors with excellent sensitivity and fast detection ability.
Article
Biochemistry & Molecular Biology
Antonio Baldanza, Maria Giovanna Pastore Carbone, Cosimo Brondi, Anastasios C. Manikas, Giuseppe Mensitieri, Christos Pavlou, Giuseppe Scherillo, Costas Galiotis
Summary: The study demonstrates the successful incorporation of graphene monolayers into a polymer matrix, resulting in a nanolaminate material with improved mechanical properties and gas barrier performance. This novel material has potential applications in various fields.
Article
Chemistry, Physical
Pao-Hsun Huang, Zhi-Xuan Zhang, Chia-Hsun Hsu, Wan-Yu Wu, Chien-Jung Huang, Shui-Yang Lien
Summary: The study explores the impact of radical intensity on the deposition mechanism, optical, and electrical properties of tin oxide (SnO2) thin films. Adequate intensities of Ar* and O* at 1500W power lead to the highest O-V ratio, narrowest band gap, and densest film structure. Increasing plasma power enhances carrier concentration while powers beyond 1500W increase resistivity due to removal of O-V and significant Ar* bombardment.
Article
Chemistry, Multidisciplinary
Jia-Chi Su, Tsung-Lin Hsieh, Shu-Meng Yang, Shao-Chun Chao, Kuo-Chang Lu
Summary: With the continuous advancement of high-tech industries, the proper handling of pollutants has become urgent. In this study, Zn2SnO4 (ZTO) nanowires were synthesized and modified with Ag nanoparticles to form nanoheterostructures. The nanoheterostructures exhibited excellent photocatalytic properties, effectively degrading pollutants. The study also explored the reusability and stability of the nanowires and the relationship between photocatalytic efficiency and the number of Ag nanoparticles.
Article
Chemistry, Inorganic & Nuclear
James D. Parish, Michael W. Snook, Andrew L. Johnson
Summary: A family of tin(ii) heteroleptic complexes and homoleptic systems were successfully synthesized and structurally characterized. NMR spectroscopy and single-crystal X-ray diffraction studies were used for comprehensive characterization. Thermal behavior of the complexes was investigated to determine their suitability as ALD precursors for SnO thin films deposition.
DALTON TRANSACTIONS
(2021)
Article
Nanoscience & Nanotechnology
Takashi Onaya, Toshihide Nabatame, Yong Chan Jung, Heber Hernandez-Arriaga, Jaidah Mohan, Harrison Sejoon Kim, Naomi Sawamoto, Chang-Yong Nam, Esther H. R. Tsai, Takahiro Nagata, Jiyoung Kim, Atsushi Ogura
Summary: The study investigated the change in interplanar spacing (d-spacing) of the ferroelectric orthorhombic (O) phase in low-temperature fabricated HfxZr1-xO2 (HZO) films. It was found that an increase in post-metallization annealing (PMA) temperature led to higher remanent polarization (2P(r)) values and a linear relationship between 2P(r) and the d-spacing of O/T/C phases. The presence of a ferroelectric O phase was crucial for the wake-up effect, which was reduced after PMA at 400 degrees C in both thermal and plasma-enhanced atomic layer deposition (ALD) HZO films. The analysis of the ferroelectric O phase is important for understanding ferroelectricity and endurance in the films.
Article
Chemistry, Physical
Pablo Collantes Jimenez, Gustav Sievers, Antje Quade, Volker Brueser, Rebecca Katharina Pittkowski, Matthias Arenz
Summary: To address the scarcity of Ir in catalyzing the sluggish oxygen evolution reaction in acidic water electrolysis, unconventional approaches are needed to design more active catalysts with minimal resource usage for commercial scaling. This study presents a benchmark of self-supported Ir-Co catalysts with low Ir loading, produced by physical vapour deposition, under relevant current densities in a gas diffusion electrode setup. By selectively leaching the Co, a nanoporous structure with a high electrochemically active surface area and a mixed oxide and metallic character was formed, leading to significantly higher oxygen evolution mass activities compared to a commercial IrOx nanoparticle catalyst used as a benchmark.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
In Su Jeon, Garam Bae, Moonjeong Jang, Yeoheung Yoon, Seunghun Jang, Wooseok Song, Sung Myung, Jongsun Lim, Sun Sook Lee, Ha-Kyun Jung, Jinha Hwang, Ki-Seok An
Summary: The study successfully manipulated the surface area and density of oxygen vacancies of ZnO nanowires using atomic layer deposition, leading to improved gas sensor response values and detection limits. The surface area was found to be critical for enhancing gas response up to 50 ALD cycles, while the density of oxygen vacancies was more crucial for gas sensing performance with increasing ALD cycles (>50 cycles).
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Roelof J. Kriek, Liesel A. van Heerden, Anzel Falch, Malcolm Gillespie, Alaa Y. Faid, Frode Seland
Summary: This work demonstrates that combining an already active metal/surface, such as Ni, with metals/surfaces that exhibit low activity, like Pt and Al, can further enhance its activity. Combinatorial screening of plasma vapour deposited PtxNiyAlz thin-film ratios in alkaline medium showed that Pt9Ni56Al35 performed better than its individual components for the oxygen evolution reaction. Subsequent evaluation of Pt9Ni56Al35 as an electrocatalyst in a membraneless divergent electrode-flow-through (DEFTTM) alkaline electrolyser resulted in the highest current density to date.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Ranjan Kumar Ghadai, Kamaraj Logesh, Robert Cep, Jasgurpreet Singh Chohan, Kanak Kalita
Summary: Titanium nitride (TiN) thin film coatings were deposited on silicon (p-type) substrate using atmospheric pressure chemical vapour deposition (APCVD) technique to evaluate the effect of deposition time on the physical and mechanical characteristics. Characterization using SEM, AFM, and nanoindentation revealed the presence of Ti and N elements, the morphology of small-sized particles with cracks and pores, and increased surface roughness with longer deposition time. The nanomechanical properties such as nanohardness and Young's modulus showed an increase with longer deposition time. The deposition time was found to play a vital role in TiN coating deposition using CVD technique.
Article
Chemistry, Physical
Shixiang Zhou, Li Yao, Hui Mei, Konstantinos G. Dassios, Laifei Cheng, Litong Zhang
Summary: Chiral-rotating gas sensing structures composed of chemiresistive-sensitized SiCuOC have been proposed to reduce thermal expansion of gas sensors at high temperatures. The structures disperse thermal stress by heat-induced torsion, maintaining dimensional stability. The synergistic sensitization effect of the substrate and surface sensing layer results in high response/recovery speed and value, with long-term detection maintained. The structures exhibit low thermal expansion coefficient, high deformation resistance, and can perform gas detection under pressure and thermal loading.
CHEMISTRY OF MATERIALS
(2022)
Editorial Material
Materials Science, Multidisciplinary
Bryan W. Stuart, George E. Stan
Summary: This Special Issue focuses on the developments of Physical Vapour Deposited (PVD) biomedical coatings, particularly in dentistry and orthopaedics. These methods have not yet been widely adopted in the biomedical industry. The new generation of implant coatings can be achieved through innovative approaches.
Article
Chemistry, Physical
Teerayut Prada, Viyada Harnchana, Anthika Lakhonchai, Artit Chingsungnoen, Phitsanu Poolcharuansin, Narong Chanlek, Annop Klamchuen, Prasit Thongbai, Vittaya Amornkitbamrung
Summary: Surface modification of PTFE TENG using a two-step plasma etching process enhances energy conversion performance, increasing power density significantly. The use of sequential two-step O-2/Ar plasma modification results in improved surface area and charge trapping sites, leading to intensified triboelectric charge density and enhanced power output for PTFE-based TENG.
Article
Physics, Applied
Dalawan Limthin, Piyawan Leepheng, Korakot Onlaor, Benchapol Tunhoo, Annop Klamchuen, Thutiyaporn Thiwawong, Darinee Phromyothin
Summary: In this study, the selectivity and sensitivity of salbutamol detection were enhanced by modifying a carbon plate electrode with a novel molecularly imprinted polymer (MIP) combined with reduced graphene oxide (RGO). The modified RGO/MIP electrode showed higher sensitivity and selectivity compared to the MIP electrode.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
Article
Energy & Fuels
Tirapote Rattana-Amron, Annop Klamchuen
Summary: During the thermal degradation period, the Kinetic Akahira-Sunose (KAS) method was considered the optimal kinetic approach for studying motor oil oxidation, providing the highest fitting precision. The study revealed multiple reactions at the initial stage of the oxidation process and a sudden decrease in activation energy between conversion extents of 0.1 to 0.2. Further research is needed to better understand the oxidation behavior of motor oil for accurate stability prediction.
PETROLEUM SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Chanthawut Jetjamnong, Sutharat Chotikaprakhan, Rattanachai Kowong, Chanunthorn Chananonnawathorn, Atipong Bootchanont, Tossaporn Lertvanithphol, Saksorn Limwichean, Puchong Kijamnajsuk, Annop Klamchuen, Gang Meng, Anucha Watcharapasorn, Hideki Nakajima, Mati Horprathum
Summary: In this study, NiWO nanorod films were prepared using reactive magnetron co-sputtering with oblique angle deposition. The influence of Ni target sputtering power on the microstructural, morphology, and chemical composition of the films was investigated. Results showed that the sputtering power affected the diameter, length, and tilt angle of the nanorods, while surface roughness increased with increasing Ni sputtering power.
Article
Materials Science, Multidisciplinary
Saksorn Limwichean, Hideki Nakajima, Tossaporn Lertvanithphol, Kittikhun Seawsakul, Chanunthorn Chananonnawathorn, Raju Botta, Pitak Eiamchai, Viyapol Patthanasettakul, Pongpan Chindaudom, Annop Klamchuen, Noppadon Nuntawong, Prayoon Songsiriritthigul, Mati Horprathum
Summary: The study explored the long-term stability of silver nanorods (Ag NRs) for surface-enhanced Raman spectroscopy (SERS) substrates. Ag NRs films were deposited on silicon wafer substrates using magnetron sputtering with the glancing-angle deposition (GLAD) technique. It was found that storing the samples under high vacuum post-deposition suppressed background contamination in SERS spectra, leading to prolonged SERS performance with stable response even under air ambient usage. X-ray photoemission spectroscopy revealed carbon accumulation on Ag NRs film surfaces after high vacuum storage, enhancing SERS performance over three months.
Article
Chemistry, Multidisciplinary
Saman Kuntharin, Viyada Harnchana, Annop Klamchuen, Kitiphat Sinthiptharakoon, Prasit Thongbai, Vittaya Amornkitbamrung, Prinya Chindaprasirt
Summary: A strategy to enhance the energy conversion performance of a cement-based triboelectric nanogenerator (TENG) has been proposed by fabricating a cement-carbon black (CB) composite, which exhibits a 13-fold enhancement of the electrical output and the highest power density of 2.38 W/m2. The improvement is attributed to the good dispersion of conductive CB nanoparticles in the cement matrix, leading to a high dielectric constant that intensifies the triboelectric charge density of TENG.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Yutthanakon Kanaphan, Annop Klamchuen, Chirapan Chaikawang, Viyada Harnchana, Sutham Srilomsak, Jeffrey Nash, Tuksadon Wutikhun, Alongkot Treethong, Tirapote Rattana-amron, Sanchai Kuboon, Pongtanawat Khemthong, Monrudee Liangruksa, Nonglak Meethong
Summary: This study investigates the interfacial properties and electronic structure of carbon and small Si-based molecules through first principles calculations. The simulations demonstrate that the interfaces of C/SiO2 and C/SiO facilitate the lithiation process and provide additional lithium storage pathways. The fabrication of nanocomposites with rich C/SiOx interfaces is proposed, which exhibits stable capacity and high capacity retention.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Food Science & Technology
Thanatorn Trithavisup, Pornnicha Sanpinit, Sakhiran Sakulwech, Annop Klamchuen, Yuwares Malila
Summary: Chicken meat from commercial broilers (CBs) and spent laying hens (SHs) has similar nutritional value based on chemical composition. However, the high insoluble collagen in SH meat may result in lower protein digestibility and bio-accessibility compared to CB meat.
Article
Environmental Sciences
Mushtaq Ahmad, Thanaphum Manjantrarat, Wachiraya Rattanawongsa, Phitchaya Muensri, Rattaporn Saenmuangchin, Annop Klamchuen, Sasitorn Aueviriyavit, Kanokwan Sukrak, Wiyong Kangwansupamonkon, Sirima Panyametheekul
Summary: Air pollution in built-up areas of Asia, caused by rapid industrialization and urbanization, has become increasingly severe. This study focuses on examining the impact of pollution on the health of people living in Bangkok, Thailand. The major sources of air pollution in Bangkok are identified as local emission sources and sea salt. The health risks associated with particulate matter exposure are found to be mostly non-carcinogenic, except for chromium, which poses a carcinogenic risk to adults through inhalation. Overall, this research emphasizes the serious threat that air pollution poses to the residents of Bangkok.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Materials Science, Multidisciplinary
Narathon Khemasiri, Annop Klamchuen, Sukittaya Jessadaluk, Prapakorn Rattanawarinchai, Punlapa Borklom, Adirek Rangkasikorn, Sakon Rahong, Chaiyuth Saekung, Mati Horprathum, Chanunthorn Chananonnawathorn, Tuksadon Wutikhun, Jiti Nukeaw, Navaphun Kayunkid
Summary: Transparent electrode (TE) plays a crucial role in optoelectronics, and the surface properties of TE layer greatly affect its electrical performance. This study investigates the morphological properties of laser-ablated aluminum-doped zinc oxide (AZO) films and finds a significant impact of laser fluence on the electrical properties. The optimized AZO film with low resistivity and high optical transmittance achieved from controlling the laser fluence is utilized for electrochromic devices.
Article
Chemistry, Multidisciplinary
Sukittaya Jessadaluk, Narathon Khemasiri, Navaphun Kayunkid, Adirek Rangkasikorn, Supamas Wirunchit, Narin Tammarugwattana, Kitipong Mano, Chanunthorn Chananonnawathorn, Mati Horprathum, Annop Klamchuen, Sakon Rahong, Jiti Nukeaw
Summary: This study investigates the influence of antimony (Sb) species on the electrical properties of Sb-doped zinc oxide (SZO) thin films. The Sb species-related defects were controlled by changing the Sb2O3 content in the ablating target. Increasing the Sb2O3 content led to the dominance of Sb3+ species and a conversion from n-type to p-type conductivity in the SZO films. The substituted Sb species and Sb-Zn complex defects were responsible for the different conductivity types at low and high-level doping.
Article
Chemistry, Multidisciplinary
Yutthanakon Kanaphan, Annop Klamchuen, Voranan Piyavarakorn, Viyada Harnchana, Sutham Srilomsak, Jeffrey Nash, Tuksadon Wutikhun, Alongkot Treetong, Monrudee Liangruksa, Nonglak Meethong
Summary: Silicene has gained increasing attention in recent years due to its unique structure and outstanding anode properties. In this study, researchers successfully fabricated multilayered silicene from end-of-life silicon solar cells and used it as anode material in lithium-ion batteries. The fabricated composite showed good cycling performance and stability, providing a new opportunity for commercial application of silicene and recycling of solar waste.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Pareesa Pormrungruang, Supranee Phanthanawiboon, Sukittaya Jessadaluk, Preeda Larpthavee, Jiraphon Thaosing, Adirek Rangkasikorn, Navaphun Kayunkid, Uraiwan Waiwijit, Mati Horprathum, Annop Klamchuen, Tanapan Pruksamas, Chunya Puttikhunt, Takao Yasui, Mitra Djamal, Sakon Rahong, Jiti Nukeaw
Summary: This study presents the development and evaluation of a Zinc Oxide nanorod (ZnO NR)-surface-integrated microfluidic platform for the early detection of Dengue virus. The ZnO NR substrate demonstrated superior functionalization efficiency and remarkable sensitivity for immunofluorescence detection of DENV-3. This research highlights the potential of ZnO NRs and microfluidic platforms for early disease detection.
Article
Chemistry, Multidisciplinary
Dalawan Limthin, Piyawan Leepheng, Benchapol Tunhoo, Korakot Onlaor, Annop Klamchuen, Darinee Phromyothin, Thutiyaporn Thiwawong
Summary: In this study, enhanced sensitivity and selectivity in the photoelectrochemical determination of melamine were achieved using a combination of copper(ii) oxide (CuO) and a molecularly imprinted polymer (MIP). CuO nanomaterials were synthesized and used for surface modification of the MIP. The modified CuO/MIP electrodes showed high sensitivity and selectivity for melamine detection in a pH 7.4 PBS buffer solution.
Article
Chemistry, Multidisciplinary
Piyawan Paisrisarn, Takao Yasui, Zetao Zhu, Annop Klamchuen, Panita Kasamechonchung, Tuksadon Wutikhun, Visittapong Yordsri, Yoshinobu Baba
Summary: This study investigated the effect of crystallinity and morphology of ZnO nanowires on the capture efficiency of EVs, important biomarkers of cancer. The results showed that both the crystallinity and morphology of the nanowires played a role in improving the EV capture performance.
