Article
Nanoscience & Nanotechnology
Tomoki Matsuda, Ryotaro Seo, Akio Hirose
Summary: The interfacial strength and fracture behavior of Ag/Si interfaces formed by a composite paste comprising Ag2O microparticles, Ag microflakes, and terpineol is studied through microscale tensile testing. The paste induces a delayed reduction of Ag2O and subsequent interconnection between the Ag grains and Si substrate. The characteristic interface formation helps achieve a high joint strength at a bonding temperature of 250 degrees C and the fracture occurs in the Ag layer rather than at the interface.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Electrical & Electronic
Hong Wang, Xiaodong Quan, Qiao Zeng, Ying Wu, Bokai Liao, Xingpeng Guo
Summary: The corrosion behavior of low-temperature sintered silver nanoparticles in NH4Cl solution was investigated using electrochemical measurements and surface characterizations. Thiazolyl derivatives were found to be effective corrosion inhibitors for the silver nanoparticles. The corrosion rate increased with NH4Cl concentration and decreased with solution alkalinity, while 2-mercaptobenzothiazole and sodium 2-mercaptobenzothiazole showed excellent corrosion inhibition efficiencies in NH4Cl solutions.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Zhuohuan Wu, Wei Liu, Jiayun Feng, Zhicheng Wen, Xinyue Zhang, Xinming Wang, Chunqing Wang, Yanhong Tian
Summary: In this study, a hybrid paste containing Cu@Ag core-shell microparticles and Ag nanoparticles was designed for Cu-Cu bonding. The Cu@Ag microparticles exhibited excellent oxidation stability and Ag nanoparticles filled the pores among them, reducing the sintering temperature of the paste. Cu-hybrid paste-Cu joints were formed within approximately 15 s using electromagnetic induction heating. The joints had a shear strength of 48 MPa, porosity of 0.73%, and resistivity of 13.25 μΩ•cm when sintered at 26 kW. A possible interconnection mechanism at the contact interface was proposed, related to the melting point of metal particles and the effect of magnetic eddy currents. This fast bonding technology provides a new approach for high-power devices under high operation temperatures.
Article
Chemistry, Physical
Choong-Jae Lee, Dong-Gil Kang, Byeong-Uk Hwang, Kyung Deuk Min, Jinho Joo, Seung-Boo Jung
Summary: This study focuses on addressing the oxidation issues of Cu nanopaste, and the intensive pulsed light (IPL) sintering process can improve the microstructure and electrical properties of Cu patterns by removing organic residues, leading to enhanced quality of printed Cu patterns.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Kirak Son, Aesun Oh, Eunyoung Park, Hyun-Cheol Bae
Summary: In this study, the thermal shock reliability of die-attach technology using a micro-nano bimodal Cu-Ag paste was investigated. The results showed that the bimodal Cu-Ag paste die-attach maintained high strength for 1000 cycles, making it a reliable option for high-temperature Si and SiC power devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Qian Gao, Wei Zhou, Zhidong Xia, Xiaobo Wang, Yishu Wang, Ziwei Yue, Fu Guo
Summary: This study investigates the application of metal nanoparticles in the 3rd semiconductors and synthesizes Cu-Ag core-shell micro/nano-mixed particles using the liquid phase reduction method, which demonstrate better anti-oxidation properties compared to Cu nanoparticles. The sintered films prepared by polyethylene glycol 400 (PEG-400) exhibit superior electrical properties and hardness, with the Cu@Ag MNPs paste achieving a shear strength of 20.14 MPa at 300°C. Additionally, the Cu@Ag MNPs film displays a denser structure compared to Ag MNPs and Cu MNPs films.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Hu Huang, Lingqiong Wu, Shengbin Cheng, Xiaofeng Wu, Shiping Zhan, Yunxin Liu
Summary: The study significantly improves the response rate of the optical temperature sensing of upconversion nanoparticles by coupling with Ag@C@Ag nanoparticles, leading to a potential application in the field of nanoscale temperature sensing.
Article
Materials Science, Multidisciplinary
Chenghao Zhang, Chun Li, Mushi Zheng, Xiaoqing Si, Dejun Gao, Junlei Qi, Jian Cao
Summary: Mechanically durable superhydrophobic surfaces were fabricated using silver nanoparticle paste and stainless steel mesh. A facile method was adopted to synthesize silver nanoparticle paste, and a multi-level hierarchical superhydrophobic surface was formed by introducing a stainless steel mesh during the sintering process.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Biochemical Research Methods
Franziska Beck, Carina Horn, Antje J. Baeumner
Summary: Electrochemical immunosensors offer rapid analyte quantification with high sensitivity and selectivity, but user-friendliness can often be a challenge. Using silver nanoparticles instead of gold nanoparticles in POC sensors not only improves sensitivity, but also simplifies assay protocols to meet POC requirements, achieving lower limits of detection in a 2-minute automatic measurement.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Yanxun Guan, Fen Xu, Lixian Sun, Yumei Luo, Riguang Cheng, Yongjin Zou, Lumin Liao, Zhong Cao
Summary: In this study, a hydrogen peroxide electrochemical sensor has been developed by electropolymerizing polypyrrole (PPy) on a glass carbon electrode (GCE) and modifying Ag and Cu nanoparticles on the surface of PPy via electrodeposition. The sensor shows good response to H2O2 with two linear intervals and exhibits high reproducibility, repeatability, anti-interference, and stability. The proposed sensor reduces the cost by using non-precious metals without compromising the sensing performance of H2O2.
Article
Materials Science, Multidisciplinary
Yang Zuo, Ana Robador, Martin Wickham, Samjid H. Mannan
Summary: This study systematically investigates the effect of oxidation on the microstructure and strength of sintered Cu during high temperature aging. The oxides fill into the interspace of Cu nanoparticles, initially increasing the density and strength of sintered Cu. However, particle coarsening behavior occurs later and turns the deformable sintered Cu matrix into a brittle structure. Meanwhile, a novel mechanism of oxidation mediated nano-void formation along the grain boundary (GB) was revealed.
Article
Chemistry, Multidisciplinary
Xingwang Shen, Junjie Li, Shuang Xi
Summary: This paper presents a novel surface modification method for enhancing the pressureless sintering performance of silver nanoparticles using organic amines as a coating agent. The study demonstrates that silver nanoparticles modified with n-octylamine achieve the lowest resistivity and highest shear strength in bonded joints.
Article
Chemistry, Multidisciplinary
Thang Phan Nguyen, Il Tae Kim
Summary: Decorating Ag nanoparticles on the surface of 1T MoS2 nanosheets can enhance the electrochemical performance of the MoS2 anode, improve its conductivity, and increase cycling performance. In the experiments, Ag3@MoS2 showed the best cycling performance with a reversible specific capacity of 510 mAh.g(-1) and excellent recovery capacity when the current decreased.
Article
Chemistry, Multidisciplinary
Zikun Ding, Zhichao Wang, Bowen Zhang, Guo-Quan Lu, Yun-Hui Mei
Summary: Electrochemical migration (ECM) is a serious issue for power devices with high-density packaging. By doping 0.1wt% SiOx nanoparticles, an anti-ECM nano-Ag-SiOx paste was developed to improve the ECM lifetime and thermo-mechanical reliability of sintered nano-Ag. The addition of SiOx not only protects the Ag from oxidation but also reduces porosity and grain boundaries, retarding silver ECM.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Analytical
Muhammed Bekmezci, Hudanur Ozturk, Merve Akin, Ramazan Bayat, Fatih Sen, Rozhin Darabi, Hassan Karimi-Maleh
Summary: In this study, Silver-Platinum (Pt-Ag) bimetallic nanoparticles were synthesized using a biogenic reduction method with plant extracts. The reduction method provided a novel approach to obtaining nanostructures with fewer chemicals. The Pt-Ag bimetallic nanoparticles demonstrated an ideal size of 2.31 nm as observed through Transmission Electron Microscopy. Characterization of the nanoparticles was conducted using Fourier Transform Infrared Spectroscopy, X-ray Diffractometry, and Ultraviolet-Visible spectroscopy. Electrochemical measurements using Cyclic Voltammetry and Differential Pulse Voltammetry indicated a limit of detection of 0.03 μM and a limit of quantification of 0.11 μM. The antibacterial properties of the Pt-Ag NPs were also evaluated, showing strong antibacterial effects against Escherichia coli and Staphylococcus aureus bacteria.
Article
Geriatrics & Gerontology
Yu Cai, Zhengchao Wang, Bokai Liao, Zhenxing Sun, Pengfei Zhu
Summary: This article explores the effects of platelet-derived growth factor (PDGF)-BB on osteoarthritis (OA) and finds that PDGF-BB can attenuate OA development by inhibiting inflammation and enhancing cell proliferation through various signaling pathways. This is the first study to report the role of PDGF-BB in regulating OA development via PKA-mediated regulation.
JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
(2023)
Article
Chemistry, Physical
Longfei Song, Wenbin Hu, Xiaowen Zhang, Bokai Liao, Shan Wan, Lei Kang, Xingpeng Guo
Summary: This study investigates the influence of temperature on the corrosion behavior of AlCoCrFeNi2.1 eutectic high-entropy alloy in a chloride-containing sulfuric acid solution. The results show that the passive film of the alloy is stable at low temperatures but becomes unstable at high temperatures. The proportion of hydroxide and oxide in Fe and Cr changes with temperature, while Al and Ni are not significantly affected. The L12 phase exhibits good corrosion resistance at different temperatures, while pitting occurs on the B2 phase at low temperature.
Article
Chemistry, Analytical
Huan Wang, Pei Qin, Yun-Hui Feng, Hui-Liang Sun, Hui-Xiang Wu, Bo-Kai Liao, Yue-Bin Xi, Wei Wang
Summary: TiO2 nanorod arrays were successfully prepared and combined with polypyrrole to form an effective p-n junction, enhancing the photocurrent response of the nanocomposites. The PPy-TiO2 composite obtained by deposition three times showed the best photoelectric properties.
Article
Chemistry, Multidisciplinary
Bokai Liao, Zhigang Luo, Shan Wan, Lijuan Chen
Summary: In this study, the extract of acanthopanax senticosus leaf (ASLE) prepared using a one-step pure water extraction method is used as a sustainable eco-friendly corrosion inhibitor for carbon steel in acidic solutions. The corrosion inhibition efficiency is evaluated by weight loss method and electrochemical tests, and the compositions and microstructures of ASLE and corrosion products are analyzed. The results show that ASLE is an efficient mixed-type corrosion inhibitor for carbon steel in 1 mol/L HCl, with a maximum corrosion inhibition efficiency of 98.79% after 144 h immersion with the addition of 150 mg/L. It also displays superior long-term corrosion inhibition performance.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Longfei Song, Chunduo Dai, Xiaowen Zhang, Baokai Liao
Summary: In this study, the influence of hydrogen on the passive behavior of AlCoCrFeNi2.1 eutectic high-entropy alloy in a sulfuric acid solution was investigated. Electrochemical measurements and x-ray photoelectron spectroscopy were conducted. The results show that it is more difficult to form passive films on AlCoCrFeNi2.1 after hydrogen charging, which changes the density but not the semiconductor type of the passive film. Besides, the composition of the passivation film is affected by hydrogen charging, and the content of Cr2O3 in the film falls with an increase in hydrogen charging time.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Qixia Bai, Zhiyuan Jiang, Yuming Guan, Qingwu Long, Bokai Liao, Ting-Zheng Xie, Tun Wu, Zhe Zhang, Pingshan Wang
Summary: In this study, a decametric metal-organic cage, pentagonal prism Mn20LC10, was developed based on Tpy-Mn(II)-Tpy connectivity, with Mn(II) serving as a linker to provide good photosensitivity. This metal-organic cage exhibited enhanced 1O2 production, fast conversion time, recyclability, and substrate versatility in the photooxidation of benzaldehyde due to improved intersystem crossing ability. Remarkably, the abundant active sites of Mn20LC10 enabled its photooxidation under solvent-free and daylight conditions. This work offers potential approaches for the development of inexpensive, green, and low-cost photosensitizer systems.
INORGANIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Bokai Liao, Shiquan Ma, Siying Zhang, Xingxing Li, Ruixuan Quan, Shan Wan, Xingpeng Guo
Summary: The Fructus cannabis protein extract powder (FP) was used as a corrosion inhibitor through a water-extraction method. The characteristics and properties of FP were analyzed, showing the presence of multiple functional groups. The corrosion inhibition performance and stability of FP were investigated, with high efficiency observed.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Correction
Materials Science, Multidisciplinary
Song Longfei, Dai Chunduo, Zhang Xiaowen, Liao Bokai
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Polymer Science
Zhongyu Huang, Lihong Liu, Bing Lei, Guozhe Meng, Zhiyuan Feng, Honglei Guo, Bokai Liao, Ping Zhang
Summary: A new imidazole derivative corrosion inhibitor was synthesized and its corrosion inhibition performance was evaluated for Q235 carbon steel in a 3.5 wt. % NaCl acidic solution. The results showed that this inhibitor offers excellent corrosion protection performance and provides a new strategy for carbon steel corrosion protection.
Article
Engineering, Multidisciplinary
Zongyi Zhou, Xuehong Min, Shan Wan, Jinhang Liu, Bokai Liao, Xingpeng Guo
Summary: The extract of waste feverfew root (FRE) is utilized as a green corrosion inhibitor for carbon steel in H2SO4 solution. The corrosion inhibition efficiency is evaluated through weight loss method, electrochemical tests, and in-situ scanning vibrating electrode technique. Characterization of the corrosion products is done using water contact angle, scanning electron micrograph, and X-ray photoelectron spectroscopy. The results show that at a concentration of 400 mg/L, the optimum corrosion inhibition can reach 98.1% and remains above 91% after 96 hours of immersion. The adsorption of FRE and KI follows Langmuir adsorption model, and the adsorption film exhibits hydrophobicity, effectively retarding the penetration of corrosive media.
RESULTS IN ENGINEERING
(2023)
Article
Chemistry, Physical
Tengfei Xiang, Xuxin Chen, Zhong Lv, Wei Tong, Jun Cao, Yizhou Shen, Bokai Liao, Yannan Xie, Shihong Zhang
Summary: A dual-function anti-icing/de-icing solid slippery surface has been developed by infusing GO@Fe3O4 mixed PDMS/PF lubricant into nano-grass CuO (PSSS). This surface exhibits low surface energy and photothermal effect, inhibiting ice formation and accumulation and facilitating in-situ removal of ice. The study provides a perspective for designing robust lubricant infused slippery surfaces and will have a profound influence on anti-icing/de-icing applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Jin-Hang Liu, Huixiong Jiang, Bokai Liao, Xiaohua Cao, Langhua Yu, Xiudong Chen
Summary: Replacing expensive platinum catalysts, this study explores the use of atomically dispersed single-atom catalysts to improve the efficiency of fuel cells. The designed catalysts, TM-N2O2Cx, demonstrate excellent catalytic performance and stability in acidic media. Moreover, a linear relationship between the adsorption free energies of oxygen-containing intermediates is identified, providing a volcano plot for screening exceptional catalysts for oxygen reduction reactions.
Article
Chemistry, Physical
Longfei Song, Wenbin Hu, Bokai Liao, Shan Wan, Lei Kang, Xingpeng Guo
Summary: The corrosion behavior of the AlCoCrFeNi2.1 eutectic high-entropy alloy was investigated in 3.5 wt% NaCl solution and 3.5 wt% NaCl + 0.01 mol/L NaHSO3 solution at different temperatures using electrochemical testing, XPS, and SEM/EDS. The alloy can be passivated in the NaCl solution with a passive film mainly composed of metal oxides, while it cannot be passivated in the NaCl + NaHSO3 solution. Pitting corrosion occurs at the Al-Ni-rich phase as the primary form of corrosion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Optics
Yongchang Xu, Youzhao Zhang, Xiangwei Li, Yumei Zhong, Kaiqi Lin, Bokai Liao, Xingpeng Guo, Chao Yuan, Shuyan Zhang
Summary: This study investigates the evolution of track morphology, melt pool characteristics, and defects in additively manufactured mold steel under different layer thicknesses and laser energy densities. The results show that the morphology of single tracks and the characteristics of the melt pool change with the increase in line energy density. Furthermore, an increase in layer thickness leads to the occurrence of certain defects.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Engineering, Electrical & Electronic
Bo-Kai Liao, Zong-Yi Zhou, Zhi-Gang Luo, De-Quan Wu
Summary: In this study, the corrosion behavior of SAC305 tin-based solder alloy at lower temperatures was investigated using electrochemical methods. It was found that the anti-corrosion ability decreased with increasing temperature at the same NaCl concentration. At relatively lower temperatures, a higher chloride concentration improved the corrosion resistance of SAC305 alloy, whereas the opposite conclusion was reached at high temperatures.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
