Article
Chemistry, Physical
T. J. Marrow, I Sulak, B-S Li, M. Vuksic, M. Williamson, D. E. J. Armstrong
Summary: Nano-indentation was used to study the (0001) surface of highly oriented pyrolytic graphite at temperatures up to 600 degrees C. The results revealed an increased tendency for inelastic deformation at high temperature, with buckling and kink formation of the graphite crystals.
Article
Materials Science, Multidisciplinary
M. Hassan, L. Jiaji, P. Lee, R. S. Rawat
Summary: ZnO thin films with randomly oriented 1-dimensional and multipod nanostructures were synthesized using thermal evaporation technique. The deposition rate was found to significantly influence the morphology of the nanostructures.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Multidisciplinary Sciences
Can Xiao, Bernat Mir-Simon, Pilar Rivera-Gil
Summary: This article reports a synthetic procedure to obtain stable, reproducible, and robust highly-SERS performing nanocomposites for labeling. The biosensing performance was validated by designing a SERS-based detection assay model for SARS-CoV-2, with a detection limit below 10 ng/mL.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
M. Eugenia Perez-Ojeda, Edison Castro, Claudia Kroeckel, Matteo Andrea Lucherelli, Ursula Ludacka, Jani Kotakoski, Katharina Werbach, Herwig Peterlik, Manuel Melle-Franco, Julio C. Chacon-Torres, Frank Hauke, Luis Echegoyen, Andreas Hirsch, Gonzalo Abellan
Summary: In this study, covalently functionalized carbon nano-onions (CNOs) were synthesized using a reductive approach with unprecedented alkali-metal CNO intercalation compounds. The controlled intercalation process with potassium was investigated for the first time, revealing a Fano resonance in highly doped CNOs. The experimental results were further confirmed by electron energy loss spectroscopy, X-ray diffraction, and rationalized with DFT calculations. This work provides important insights into reductive CNO functionalization principles and potential applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Shuailing Ma, Yongsheng Zhao, Hailong Li, Robert Farla, Zihan Zhang, Chao Zhou, Xingbin Zhao, Yanping Huang, Yanhui Liu, Kuo Bao, Bin Yang, Xigui Yang, Pinwen Zhu, Qiang Tao, Tian Cui
Summary: This study presents a method for synthesizing transparent nano-polycrystalline diamond under low pressure and low temperature conditions. The use of self-catalyzed hydrogenated carbon nano-onions as a precursor enables synthesis under nearly industrial conditions. The significant impact of hydrogen on the thermodynamics allows for effective synthesis.
Article
Optics
Jie Ding, Yulan Li, Hui Chen, Yunpeng Cai, Zhenxu Bai, Yaoyao Qi, Bingzheng Yan, Yulei Wang, Zhiwei Lu
Summary: In this work, we investigate the impact of thermal loading on the performance of an external cavity diamond Raman laser. A model is formulated to study the temperature, thermal stress, and thermal deformation in the diamond Raman medium. Experimental results show a DRL generating Stokes emission at 1240 nm with high output power and beam quality.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Vadim Sedov, Alexey Popovich, Stepan Linnik, Artem Martyanov, Junjun Wei, Sergei Zenkin, Evgeny Zavedeev, Sergey Savin, Alexander Gaydaychuk, Chengming Li, Victor Ralchenko, Vitaly Konov
Summary: This study used a combination of two chemical vapor deposition (CVD) methods, microwave plasma-assisted (MW CVD) and hot filament (HF CVD), to grow 100 μm-thick polycrystalline diamond (PCD) films on Si substrates. The combined material reduced the overall bow by a factor of 2-3 compared to the opposite convex/concave trends of HF CVD and MW CVD films. Using MW CVD for the initial growth of a 25 μm-thick PCD layer allowed the combined film to have a much higher thermal conductivity of 210 W/mK, compared to 130 W/mK for the 93 μm-thick pure HF CVD film.
Article
Chemistry, Physical
Jingxuan Pei, Zhenfei Tian, Xiang Yu, Shuting Zhang, Shiqing Ma, Yibo Sun, Rabah Boukherroub
Summary: Antibiotic residues in wastewater pose a threat to aquatic environment and human safety. A surface-enhanced Raman scattering substrate with high sensitivity, reusability and stability has been developed for detecting antibiotic residues.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Li Zhang, Ximiao Wang, Huanjun Chen, Chuan Liu, Shaozhi Deng
Summary: The study demonstrates the potential applications of nano-gap structures for signal generation and sensitive chemical sensing at the nanoscale. Arranging the nano-gaps into arrays can improve the signal intensity.
Article
Chemistry, Physical
Paul C. Uzoma, Xiaolei Ding, Xiaolei Wen, Lansheng Zhang, Oleksiy Penkov, Huan Hu
Summary: The mechanical and tribological properties of a newly invented nano-spherical silicon tip were investigated in this study, showing good durability and stable elastic modulus, making it suitable for AFM operations and nanoscale tribology measurements.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Cesar Daniel Rivera-Tello, Francisco Javier Flores-Ruiz, M. Flores, O. Jimenez, I Farias, J. Oseguera-Pena
Summary: This study investigated the influence of methane flow on the micro-tribological behavior of diamond-like carbon coatings using Raman spectroscopy. The results showed a direct relationship between methane flow and coating thickness, and the analysis of Raman spectra helped establish the properties of the carbon coatings. Additionally, the study demonstrated a strong correlation between wear resistance and hardness with Raman parameters.
Article
Multidisciplinary Sciences
Sung Keun Lee, Yoosoo Yi, Yong-Hyun Kim, Hyo-im Kim, Paul Chow, Yuming Xiao, Peter Eng, Guoyin Shen
Summary: Diamond's unprecedented hardness is due to its electronic bonding nature under extreme pressure, which has been experimentally observed through inelastic x-ray scattering spectra measurements up to 2 million atmospheres. The observed changes in electronic structure reveal the ability of diamond to withstand deformation and internal stress, shedding light on the origin of its hardness.
Article
Chemistry, Physical
Satish Yadav, Mohit Chandra, R. Rawat, Ashish Khandelwal, L. S. Sharath Chandra, R. J. Choudhary, Vasant Sathe, A. K. Sinha, Kiran Singh
Summary: Co4Nb2O9 (CNO) is an interesting magnetoelectric material, and in this study, comprehensive temperature-dependent properties including structural, phonon, dielectric, and magnetic aspects were reported. The results show that CNO exhibits dielectric transition and magnetoelastic coupling at the antiferromagnetic ordering temperature (T-N).
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Engineering, Electrical & Electronic
Junkai Li, Chengyu Yang, Yulong Jin, Yang Lu, Yiting Shan, Xianfu Luo, Qianqian Xian, Hongqing Zhou
Summary: Ba(Mg1/3Nb2/3)O-3-MgO composite ceramics were prepared by solid-phase method, and the effect of adding different amounts of nano-silica on their properties was studied. The results showed that adding a proper amount of MgO could significantly decrease the permittivity of the ceramics, while adding nano-silica greatly improved the Q x f values of the samples.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Lucia Amy, Sofia Favre, Ricardo Faccio
Summary: This study explores a promising alternative for manufacturing anodes for sodium-ion batteries and evaluates the properties of nanostructures of sodium titanate by examining the pH variation during hydrothermal synthesis. The experimental results show that the relative weight between phases and the direct band gap can be controlled by adjusting the pH conditions, leading to changes in the morphology of the structural phases. Additionally, the changes in electrical properties over a possible operation temperature range of a potential device are discussed.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)