Article
Chemistry, Physical
Andre do Nascimento Barbosa, Cesar Augusto Diaz Mendoza, Neileth Johanna Stand Figueroa, Mauricio Terrones, Fernando Lazaro Freire Junior
Summary: In this study, WS2 monolayers were treated with low-power N-2 plasma for different periods of time, and their properties were studied using various techniques. The results showed that short treatment times increased the photoluminescence signal, while longer exposure quenched it. Raman spectra indicated that the treatment did not cause significant changes in peak positions, and XPS revealed the presence of N impurities in the lattice.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Mitsuhiro Inoue, Hiroaki Iwane, Hideshi Kikuyama, Yuzo Tasaki, Yuji Honda, Takayuki Abe
Summary: Lithium phosphorus oxynitride (LiPON) electrolyte particles with high ionic conductivity were prepared using the N2-plasma treatment method to improve the Li3PO4 particle conductivity and form amorphous LiPON particles. The crystallinity of the formed LiPON particles increases with longer treatment times.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Mitsuhiro Inoue, Hiroaki Iwane, Hideshi Kikuyama, Yuzo Tasaki, Yuji Honda, Takayuki Abe
Summary: Highly ionic conductive LiPON electrolyte particles were prepared using the polygonal barrel-plasma treatment method. The treatment time significantly affected the ionic conductivity of the LiPON particles, and the formation of an amorphous LiPON layer was observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Byunguk Kim, Namgue Lee, Junghoon Lee, Taehun Park, Hyunwoo Park, Youngjoon Kim, Changhyun Jin, Dahyun Lee, Hohoon Kim, Hyeongtag Jeon
Summary: Deposition of titanium nitride thin films using remote plasma enhanced atomic layer deposition technique allows lower temperature operation and improved film quality. Films deposited under specific plasma power and exposure time exhibit lower impurity content, improved crystallinity, and minimal surface roughness.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Xiaoqin Pan, Wei Li, Yueping Fang, Haoran Zhang, Yong Xiao, Maxim Molokeev, San Ping Jiang, Yingliang Liu, Bingfu Lei
Summary: A new semi-artificial photosynthetic system has been successfully developed for efficient synthesis of ammonia through N2 fixation at room temperature and ambient pressure, using material-cell hybrids and microbial photo-electrolysis cells (MPECs). The system showed significantly higher synthesis efficiency compared to pure microalgae fixation methods.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Ceramics
Keiji Saiki, Toshihiro Ishikawa
Summary: The purpose of the study was to control the particle size of spherical silica-titania mixed oxide particles during synthesis and investigate the relationship between the Si/Ti molar ratio and the crystal structure obtained, as well as the adiabatic flame temperature and the particle size.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Chemistry, Physical
Xinghui Liu, Ruinian Hua, Jinhai Niu, Zhenyi Zhang, Jialiang Zhang
Summary: The photocatalytic activity of Titanium dioxide nanosheets (TiO2 NFs) can be enhanced by N-2 plasma treatment, leading to more oxygen vacancy and Ti3+ ions in the N-TiO2 NFs. The Ti3+ self-doped system formed by Ti3+ ions increases the light absorption range, resulting in a 14.85 times higher catalytic H-2 evolution rate in N-TiO2 NFs compared to pristine TiO2 NFs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Food Science & Technology
Fusheng Sun, Xiaoxue Xie, Yufan Zhang, Mingyu Ma, Yaqiong Wang, Jiangwei Duan, Xinpei Lu, Guangxiao Yang, Guangyuan He
Summary: Cold air atmospheric pressure plasma treatment altered the physiochemical and functional properties of wheat gliadin by generating high-energy reactive oxygen and nitrogen species, leading to conformational rearrangement and modification of key amino acids. The increase in disulfide bonds and free thiol groups, along with enhanced zeta potential and colloidal particle size, improved the foaming ability and stability of gliadin, making it a more versatile ingredient for potential applications in the food industry.
Article
Materials Science, Coatings & Films
S. Ferraris, G. Orlygsson, C. H. Ng, G. Riccucci, S. Spriano
Summary: Coating titanium with chitosan is a promising method for reducing the infection risk and modulating the inflammatory response of bone implants. This research tested two titanium surfaces and employed three coating strategies. The chemically pretreated surface showed the best coating results and interface stability.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Food Science & Technology
Hao Sun, Yaoke Duan, Huandong Li, Xiaoxia Hu, Bing Li, Jie Zhuang, Junxia Feng, Ruonan Ma, Zhen Jiao
Summary: This study investigated the effects of atmospheric cold plasma (ACP) on the microbiota community composition and diversity in blueberries, as well as its correlation with anthocyanin accumulation during storage. The results showed that ACP treatment did not selectively inactivate microbiota at the phylum level, but increased the proportion of Bacteroides and Faecalibacterium at the genus level. Certain bacterial species were identified as biomarkers of ACP-mediated sterilization. The surviving microbiota were less pathogenic and more sensitive to environmental stresses. The anthocyanin concentration in blueberries was slightly affected by a 10-min ACP treatment, but decreased after a 20-min treatment. Correlation analysis revealed specific bacteria that were positively or negatively correlated with anthocyanins. This study helps evaluate the performance and risk of ACP-mediated postharvest preservation of blueberries.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Sifan Yan, Satoshi Komasa, Akinori Agariguchi, Giuseppe Pezzotti, Joji Okazaki, Kenji Maekawa
Summary: This study aims to improve the surface properties of pure titanium and circumvent the negative effects of material aging on dental implants. The results show that nonthermal atmospheric-pressure nitrogen plasma treatment can enhance the hydrophilicity of pure titanium and promote cell attachment, proliferation, and osseointegration.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Chemical
Radoslaw Krzosa, Lukasz Makowski, Wojciech Orciuch, Gill Ozcan-Taskin, Radoslaw Adamek, Michal Wojasinski
Summary: Industrial grade titanium dioxide powders from different producers were tested using various techniques such as composition analysis, scanning electron microscopy, and small angle light scattering. The results showed impurities and different particle size distributions among the powders. The tensile strength of the agglomerates was calculated using attractive Van der Waals forces and found to vary from 3.50 Pa to 49.84 Pa. The method presented in this study can be useful for characterizing and processing titanium dioxide powders.
Article
Materials Science, Ceramics
Vladimir Koshuro, Elena Osipova, Olga Markelova, Marina Fomina, Andrey Zakharevich, Sergey Pichkhidze, Aleksandr Fomin
Summary: Porous titanium-containing coatings were formed on titanium samples by atmospheric plasma spraying. Induction heat treatment increased the oxygen content in the coatings and formed titanium oxide coatings, which resulted in improved microhardness and adhesive strength.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
HyukSu Han, Sung- Moon, Seunggun Choi, Enkhbayar Enkhtuvshin, So Jung Kim, Sun Young Jung, Nguyen Thi Thu Thao, Taeseup Song
Summary: In this study, plasma treatment was utilized for surface engineering of TiO2 nanotubes, creating porous and partially amorphized surface and effectively modulating the electronic configuration for improved photocatalytic activity. The enhanced charge transport and light-absorption in TiO2 nanotubes after ion plasma treatment, in combination with nanoporous structure, leads to significantly higher photocatalytic efficiency, potentially offering a pathway for designing next-generation high-performance photocatalysts.
CERAMICS INTERNATIONAL
(2021)
Article
Biochemical Research Methods
Tianlong Zhang, Hangrui Liu, Kazunori Okano, Tao Tang, Kazuki Inoue, Yoichi Yamazaki, Hironari Kamikubo, Amy K. Cain, Yo Tanaka, David W. Inglis, Yoichiroh Hosokawa, Yalikun Yaxiaer, Ming Li
Summary: In this study, we achieved shape-based separation of drug-treated Escherichia coli (E. coli) using viscoelastic microfluidics. The ability to separate bacterial populations based on their shape has significant implications for various applications. The separation performance of the microfluidic device was influenced by the sheath-to-sample flow rate ratio and the concentration of poly-ethylene-oxide (PEO).
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
