Article
Materials Science, Multidisciplinary
Guangzhi He, Chengkai Qian, Zhipeng Cai, Kejian Li, Qu Liu, Jianfeng Yan
Summary: Laser shock peening combined with pulse magnetic field is proposed as a new strategy to improve the uniformity of mechanical properties and microstructures in metallic materials. The integration, called magnetic field-assisted laser shock peening (MFLSP), leads to uniform grain refinement and surface hardness. This is achieved by dispersing dislocation lines from low-angle grain boundaries to the intragranular area through the stimulation of magnetic fields. The enhanced grain refinement results in uniform surface hardening, making it a valuable approach to adjust the mechanical properties of metallic materials.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Coatings & Films
Zhanghan Tang, Xia Dong, Kedian Wang, Yongxiang Geng, Meng Gao, Xuesong Mei
Summary: By changing the experimental sequence of WLSP and LSP, this study investigates the effects of different surface treatments on DD6 superalloy samples. The results show that all surface treatments induce 110 cross-slip bands and strengthen the sample surface. Single WLSP plus single LSP treatment effectively prevents thermal relaxation of the CRS layer and results in a better CRS layer thickness, dislocation distribution, and density compared to double LSP and double WLSP treatments. Pipeline diffusion of elements improves the electrochemical and thermal corrosion resistance of the single-crystal superalloy.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Milad Hamidi Nasab, Maurizio Vedani, Roland E. Loge, Navid Sohrabi, Amir Mohammad Jamili, Anton du Plessis, Stefano Beretta
Summary: In recent years, the laser powder bed fusion of aluminum alloys has gained significant attention due to its wide application in various industries. However, these parts suffer from residual stresses, surface irregularities, and defects, which limit their use in fatigue-sensitive applications. Laser shock peening has been employed as a post-processing method to address these issues.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Coatings & Films
Erfan Maleki, Sara Bagherifard, Okan Unal, Alireza Jam, Shuai Shao, Mario Guagliano, Nima Shamsaei
Summary: The surface texture of metallic parts produced by laser powder bed fusion (L-PBF) significantly affects their mechanical properties, particularly fatigue behavior. Post-processing methods, such as laser shock peening (LSP) and ultrasonic nanocrystalline surface modification (UNSM), can effectively improve the mechanical performance of these materials. By conducting a range of experiments, it was found that the hybrid LSP + UNSM process resulted in a significant improvement in mechanical properties and fatigue behavior due to sub-surface pores closure, increased surface hardness, induced surface compressive residual stresses, and reduced surface roughness. The fatigue life was improved by up to 75, 56, and 35-fold compared to the as-built state after applying LSP + UNSM, UNSM, and LSP treatments, respectively.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Sunil Pathak, Sanin Zulic, Jan Kaufman, Jaromir Kopecek, Ondrej Stransky, Marek Bohm, Jan Brajer, Libor Beranek, Ashish Shukla, Michal Ackermann, Filip Vele, Tomas Mocek
Summary: This study investigates the post-processing of additively manufactured stainless steel (SS) 304 L samples through laser shock peening (LSP). The results show significant improvements in compressive residual stresses and surface morphology. These findings contribute to a better understanding of the LSP mechanism in the post-processing of AM parts.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Yuhao Sun, Huixia Liu, Youjuan Ma, Haokun Zhang, Xiao Wang
Summary: This study investigated the effect of electric pulse-assisted laser shock peening, a new composite surface treatment method, on the microstructure and corrosion resistance of high-purity magnesium. The results showed that this method can effectively enhance the corrosion resistance of high-purity magnesium by refining the grain structure and increasing the dislocation density.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Optics
Joerg Koerner, Sanin Zuli, Juergen Reiter, Mathias Lenski, Joachim Hein, Ragnar Boedefeld, Danijela Rostohar, Tomas Mocek, Malte C. Kaluza
Summary: This paper presents the setup of a compact, q-switched, cryogenically cooled Yb:YAG laser capable of producing high energy laser pulses in a short period of time, demonstrating its potential application in laser shock peening process.
Article
Chemistry, Physical
Sijia Liu, Youngdae Kim, Jinesung Jung, Seongguk Bae, Sungho Jeong, Keesam Shin
Summary: This study established the optimal process parameters for ultrasonic shot peening (USP) and laser shock peening (LSP) on IN738LC alloys. The microstructural observations and microhardness measurement revealed that plastic deformation-induced dislocation build-up was crucial for alloy strengthening in both methods, while significant strengthening via gamma ' shearing was only observed in the USP-treated alloys.
Article
Optics
Saumyabrata Banerjee, Jacob Spear
Summary: In this paper, the authors demonstrate the introduction of compressive stresses in pure tungsten and its alloy TAM7525 through nanosecond laser shock peening (ns-LSP) without the need for absorption and confinement layers. The peak compressive stresses achieved in pure tungsten and TAM7525 without confinement layer compare favorably to the results obtained with water as a confinement layer in traditional ns-LSP. The depth of compressive stresses recorded in tungsten and its alloy through confinement layer free ns-LSP is significantly greater than that achieved in aluminum through femtosecond laser shock peening (fs-LSP) at atmospheric pressure.
Article
Materials Science, Coatings & Films
L. B. Peral, Amado Quintero, A. T. Vielma, Maria Florentina Barbes, I Fernandez-Pariente
Summary: TEM analysis was conducted to study the microstructural changes of low alloy steel subjected to different shot peening treatments, revealing that CSP treatment promotes ferrite amorphization while SSP treatment results in the nucleation of nanocrystals from the amorphous matrix. The mechanical evolution showed similar compression stress values but increased affected layer thickness with SSP treatments. Furthermore, microhardness measurements demonstrated significant hardening in the upper material layer, with the influence of CSP and SSP confirmed by FWHM measurements.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Nuclear Science & Technology
Eui-Kyun Park, Hyun-Jae Lee, Ju-Hee Kim, Yun-Jae Kim
Summary: This paper presents approximate in-depth residual stress and plastic strain profiles for laser-peened alloy 600 surface via FE analysis. The effects of the initial welding residual stress and the number of shots are quantified in the approximations. The proposed profiles are validated by comparing with published LSP experimental results for welded plates, and the effects of the initial welding residual stress and the number of shots on these profiles are discussed. The proposed profile can be directly applied to predict the mitigation effect of LSP on PWSCC and to efficiently perform structural integrity assessment of laser peened nuclear components.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Jan Schubnell, Eva-Regine Carl, Ardeshir Sarmast, Manuel Hinterstein, Johannes Preussner, Marco Seifert, Christoph Kaufmann, Peter Russbueldt, Jan Schulte
Summary: Laser shock peening (LSP) is a mechanical surface treatment process that can modify near-surface material properties. Compared to conventional shot peening (SP), LSP allows for more precise adjustment of process parameters and achieves greater penetration depth of compressive residual stresses. However, the high process times of LSP result in high production costs. This study explores the application of ultrafast LSP (U-LSP) using an ultrafast laser source on different materials. The results show that U-LSP significantly reduces process time and can achieve similar compressive residual stresses compared to conventional laser shock peening (C-LSP) in certain cases.
Article
Optics
Noor Shahira Masroon, Akihiro Hata, Miho Tsuyama, Manabu Heya, Hitoshi Nakano
Summary: By controlling the acoustic impedance of water in laser peening experiments, it was found that warm water around 60 degrees C could significantly improve the mechanical performance of stainless steel, indicating the development of a simple and efficient method for laser peening.
Article
Engineering, Mechanical
Xiankai Meng, Xumin Leng, Chong Shan, Liucheng Zhou, Jianzhong Zhou, Shu Huang, Jinzhong Lu
Summary: In this study, ultrasonic-assisted laser shock peening (ULP) was proposed to improve the fatigue resistance of 2024-T351 aluminum alloys by combining ultrasonic shock peening (UP) and laser shock peening (LP) techniques to enhance the microstructure and mechanical properties. The microstructure, residual stress, microhardness, and vibration fatigue life of four different specimen types were tested and analyzed. The results showed that ULP significantly increased the dislocation density and refined the grains, leading to higher compressive residual stress and microhardness, which inhibited crack initiation and propagation, and thus greatly increased the vibration fatigue life.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Materials Science, Multidisciplinary
Magdalena Rozmus-Gornikowska, Jan Kusinski, Lukasz Cieniek, Jerzy Morgiel
Summary: The study investigated the influence of laser shock peening on the surface morphology and microstructure of a nickel-based superalloy, discovering that laser shock peening caused ablation and melting of the surface layer, leading to increased surface roughness. After laser treatment, severe distortion of the γ/γ' microstructure was observed beneath the surface layer, along with the formation of localized shear bands of deformation. Additionally, the nanohardness value was significantly increased in the laser-treated region.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Sen Xiang, Xingtao Liu, Rong Xu, Fei Yin, Gary J. Cheng
Summary: Lightweight high-strength steel is an important subject in the field of structural materials. Recent studies have shown that the use of B2 intermetallic phase can further enhance the mechanical properties of metal alloys. In this study, a thermal-controlled high strain rate plastic deformation process called warm laser shock peening (wLSP) was used to process a lightweight Fe-Mn-Al-C steel, resulting in the precipitation of B2 intermetallic phase and high density dislocations. The strong coupling effect between the B2 intermetallic precipitates and shock wave leads to the avalanche multiplication of ultrahigh density and ultrafine B2 precipitates, significantly improving the strength and ductility of the material.
Article
Chemistry, Multidisciplinary
Meng-Nan Zhu, Haoqing Jiang, Bo-Wen Zhang, Minrui Gao, Peng-Fei Sui, Renfei Feng, Karthik Shankar, Steven H. Bergens, Gary J. Cheng, Jing-Li Luo
Summary: In this study, a high-energy pulsed laser method was developed to enrich Bi single atoms, and it was found that Bi-C exhibited excellent performance for the CO2RR, selectively producing formate with high current density and TOF value.
Review
Materials Science, Multidisciplinary
Yixuan Ye, Yu Zhang, Tao Huang, Shikun Zou, Yalin Dong, Han Ding, Vijay K. K. Vasudevan, Chang Ye
Summary: Many aviation accidents are caused by failure of aircraft engine components, particularly engine blades which are susceptible to fatigue fracture and impact damage. The United States has successfully implemented laser shock peening (LSP) to enhance fatigue performance of these components. This review provides an overview of LSP development for treating aircraft engine components, with a focus on limitations and challenges. It serves as a reference for future research to improve component performance.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Shifeng Li, Leiyang Wang, Bang Wu, Dingyi Guo, Yunfan Li, Yilin Zhao, Gary J. Cheng, Feng Liu
Summary: In this article, a 40-W X-band monolithic GaAs balanced limiter is fabricated using GaAs p-i-n technology. Various techniques such as rounded rectangular p-i-n diode, Lange coupler with widened crossover wires, reasonable thickness I-layer, and optimized isolated terminal resistance are employed to improve the power-handling capability of the limiter. The experimental results demonstrate that the limiter exhibits excellent small-signal performance with an insertion loss of less than 1.2 dB and input/output return losses of less than -20 dB. Moreover, it can handle a maximum power of more than 40 W while maintaining an output power of less than 20 dBm, making it highly suitable for high-power X-band communication systems.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Mechanical
Jing Yang, Daoxin Liu, Kaifa Fan, Yanjie Liu, Zhencheng Ren, Dan Liu, Xingchen Xu, Tianyi Jia, Hao Zhang, Chang Ye
Summary: In this study, a gradient nanostructured GH4169 superalloy was prepared using ultrasonic surface rolling process (USRP), and the compressive residual stress was determined to be the leading factor for the improvement of its fretting fatigue resistance at elevated temperatures.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Engineering, Manufacturing
Sen Xiang, Xingtao Liu, Licong An, Haozheng Qu, Gary J. J. Cheng
Summary: This paper proposes a novel method to modulate the heating and cooling during laser shock processing via temporal pulse shaping, combining ultrafast-heating and laser shock peening to generate desired microstructure and mechanical property. Different processing temperatures can be achieved by modulating the duration and spacing of pulses. Finite element method modeling and phase-field model are used to simulate and study the temperature profile, dislocation dynamics, and nanoprecipitation generation during this process.
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2023)
Article
Nanoscience & Nanotechnology
Tan Shu, Nan Hu, Feng Liu, Gary J. Cheng
Summary: High entropy alloys (HEAs) have gained attention for their excellent mechanical and functional properties. However, as-cast HEAs do not meet the requirements for high strength structural parts. This study presents an AlN nanoparticle-reinforced HEA matrix nanocomposite fabricated by powder bed fusion, which exhibits excellent mechanical properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Fei Yin, Shengtu Ma, Shan Hu, Yanxiong Liu, Lin Hua, Gary J. Cheng
Summary: This study explores the application of electrically assisted plastic deformation (EAPD) process in TC11 titanium alloy to enhance its formability. The mechanical behavior and microstructure evolution of TC11 titanium alloy under different current densities and strain rates were systematically investigated. It was found that pulse current can improve the formability/plasticity of TC11 titanium alloy and reduce energy consumption during manufacturing.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Multidisciplinary Sciences
Xinyu Huang, Luman Zhang, Lei Tong, Zheng Li, Zhuiri Peng, Runfeng Lin, Wenhao Shi, Kan-Hao Xue, Hongwei Dai, Hui Cheng, Danilo de Camargo Branco, Jianbin Xu, Junbo Han, Gary J. J. Cheng, Xiangshui Miao, Lei Ye
Summary: The exchange bias effect is enhanced by pressure tuning in a van der Waals heterostructure, leading to improved sensitivity and stability, and demonstrating a highly efficient spin valve. These findings provide opportunities for future customization of 2D spintronic devices.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Mechanical
Yixuan Ye, Chaoyi Zhang, Le Gao, Lan Peng, Gang Liu, Yu Zhang, Chao Tang, Tao Huang, Chang Ye
Summary: Additive manufacturing has great potential in the biomedical and aerospace industries, but the mechanical properties of additively manufactured parts are poor compared to traditional parts. To address this issue, the EP-UNSM technology is proposed, which improves the surface quality and plastic deformation depth of parts by applying pulsed current, and proves the existence of the athermal effect of electroplasticity.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Engineering, Mechanical
Xin Li, Jingyi Zhao, Yixuan Ye, Ziheng Xu, Gang Liu, Xuekun Luo, Xin Wang, Yalin Dong, Tao Huang, Chang Ye, Han Ding
Summary: An analytical model based on Hertzian contact theory and the Neuber plasticity rule is proposed to predict residual stresses generated by laser shock peening (LSP). The model is validated using experimental data. By establishing a database connecting LSP parameters with residual stress, the effects of LSP parameters on residual stress distribution can be studied and optimal LSP parameters for desired residual stress characteristics can be obtained. This multi-objective optimization method is expected to guide LSP experiments effectively.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Nanoscience & Nanotechnology
Jing Yang, Daoxin Liu, Mengyao Li, Zhencheng Ren, Dan Liu, Xingchen Xu, Xiaohua Zhang, Hao Zhang, Junfeng Xiang, Chang Ye
Summary: This study investigates the evolution mechanism of surface gradient nanostructure induced by the ultrasonic surface rolling process (USRP) in GH4169 superalloy. Characterization using transmission electron microscopy reveals that repeated impacts from USRP produced a gradient nanostructure with a thickness of -330 µm on the material's surface. The topmost surface exhibits equiaxed nanograins with an average grain size of -30 nm, with grain size increasing with depth. The study also explores the formation of dislocations, deformation twins, and stacking faults in the nanocrystallization process.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Dingyue Sun, Ming Peng, Taijin Wang, Longju Yi, Shizuo Zhang, Feng Liu, Gary J. Cheng
Summary: The addition of leflunomide (LF) to perovskite films has been shown to reduce defects and improve the photoelectric properties. The C=O bond on LF molecule can interact with the uncoordinated Pb2+ in the perovskite, reducing non-radiative recombination. LF also forms a protective layer and alters the nucleation position of perovskite, leading to decreased defects and optimized film quality. The LF-doped perovskite film exhibits low trap density and high photoelectric performance.
Article
Nanoscience & Nanotechnology
Ziran Zeng, Yunfan Li, Yilin Zhao, Jun Yuan, Longju Yi, Peilong Li, Gary J. Cheng, Feng Liu
Summary: This study investigates the application of carbonized NiCo-MOFs in flexible pressure sensors and demonstrates the improvements in performance achieved through the use of RTP carbonization. The RTP-carbonized NiCo-NPCs exhibit a modified morphology compared to the CTP-carbonized ones, resulting in higher sensitivity, wider range, and better stability and response time in the piezoresistive sensors. Moreover, the study also highlights the potential applications of the sensor in dynamic loading tests, airflow monitoring, voice recognition, and gesture detection.
Article
Multidisciplinary Sciences
Chenqi Yi, Shuyuan Qu, Yaoyu Wang, Haoning Qi, Yufeng Zhang, Gary J. Cheng
Summary: This article introduces a 3D nanoprinting method called free-space nanopainting, which uses an optical force brush (OFB) technique. OFB enables high-precision nanopatterning and significantly improves printing speed and material options.
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)
