Article
Materials Science, Multidisciplinary
Lizhen Hou, Xing Zhen, Linlin Liu, Daitao Kuang, Yangyang Gao, Heng Luo, Lianwen Deng, Chuansheng Chen, Shiliang Wang
Summary: This study presents a one-step method for synthesizing magnetic alloy-C core-shell nanoparticles with tunable elemental components, showing performance variations under different Co/Ni molar ratios. These nanoparticles exhibit stability at low temperatures and slight oxidation at higher temperatures.
RESULTS IN PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Abhishek Kumar, Anu Sharma, Yi Chen, Megan M. Jones, Stephen T. Vanyo, Changning Li, Michelle B. Visser, Supriya D. Mahajan, Rakesh Kumar Sharma, Mark T. Swihart
Summary: This study presents a novel material for medical-grade masks filtration media with antimicrobial activity, including copper@ZIF-8 core-shell nanowires to enhance the masks' ability to resist bacteria and viruses. Experimental results demonstrate that Cu@ZIF-8 NWs have a good effect in inhibiting SARS-CoV-2 virus replication.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Zhonghua Zhang, Shizhen Li, Yang Liu
Summary: Understanding the mechanisms of sintering Cu-Ag core-shell nanoparticles is crucial for optimizing sintering processes and designing desired sintering structures. Molecular dynamics simulations were conducted in this study to investigate the sintering behaviors and mechanisms of CS NPs, considering shell thickness, particle size, and temperature. The results showed that dislocation loops played a key role in sintering by facilitating crystal evolution and reducing amorphous structures. The state of dislocation loops could be controlled by shell thickness and NP size.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Electrochemistry
Zhilin Yan, Jiyang Liu, Yangfan Lin, Zheng Deng, Xueqin He, Jianguo Ren, Peng He, Chunlei Pang, Chengmao Xiao, Deren Yang, Haojie Yu, Ning Du
Summary: Uniformly depositing silicon on pyrolytic metal-organic frameworks and encapsulating it in a carbon shell can enhance the electrochemical performance of silicon, exhibiting excellent rate capability and cycle performance in lithium-ion batteries.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Marzieh Tahmasbi, Nadiya Koukabi, Farzad Seidi
Summary: In this study, a novel and recoverable nickel-based metal-organic framework catalyst was successfully fabricated for carbon-carbon bond formation in organic chemistry. The catalyst exhibited an efficient magnetic core-shell structure and a 3D dendritic fibrous morphology, with excellent thermal stability and magnetic properties. Moreover, the catalyst showed high performance in synthesizing diphenylacetylene under solvent-free and microwave conditions.
Article
Materials Science, Multidisciplinary
Jin Kyu Han, Da Som Song, Yi Rang Lim, Raphael E. Agbenyeke, Ivano E. Castelli, Vincenzo Esposito, Sun Young Kim, Sang Don Bu, Wooseok Song, Sung Myung, Sun Sook Lee, Jongsun Lim
Summary: A novel coaxial hetero-structured MoS2/SnO2 nanotube array was designed for flexible visible light photodetection, achieving high photoresponsivity and external quantum efficiency through controlled deposition thickness and strain. The linear correlation between excitation power and photocurrent, as well as the superlinearity of photocurrent in the device, were observed, with density functional theory calculations revealing a strong correlation between strain, bandgap, and photocurrent. The study suggests a detailed mechanism for enhancing photoresponsivity in the strain-tailored nanotube arrays, which are expected to revolutionize smart optical devices with low driving voltage and high power efficiency.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Chemistry, Physical
Patrick Y. Yee, Sarah Brittman, Nadeemullah A. Mahadik, Joseph G. Tischler, Rhonda M. Stroud, Alexander L. Efros, Peter C. Sercel, Janice E. Boercker
Summary: The study presents a method to deposit a PbS shell onto Cu2-xS nanocrystals, enhancing the optical properties of PbS nanocrystals. This structure shows potential for future applications.
CHEMISTRY OF MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Xiaohe Wei, Guodong Zhao, Pengfei Feng, Yao Kou, Yu Tang
Summary: This study demonstrates a simplified growth strategy of europium/1,3-benzenedicarboxylic acid (1,3-BDC) MOF on NaYF4:Ce/Tb@NaYF4 nanoparticles through a one-step reaction. By grafting carboxylic acid groups on the surface of nanoparticles, the growth of Eu-MOF is facilitated, resulting in NaYF4:Ce/Tb@NaYF4@Eu-MOF@HPBA nanocomposites. The luminescence lifetime of Tb3+ and Eu3+ can be effectively tuned, providing insights into nanoparticle@MOF hybrid structures for time-resolved anticounterfeiting applications.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jinsong Gong, Xiaobin Li, Shaoping Li, Man Xu, Wubin Dai
Summary: To overcome the toxicity caused by the degradation of ZIF-8, a stable and biocompatible ZIF-8 nanocarrier is designed via biomimetic mineralization. The use of multiple drugs can efficiently avoid multidrug resistance, making it a promising vehicle for targeted cancer therapy.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zehao Zhou, Jian Zhao, Zhenghan Di, Bei Liu, Zhaohui Li, Xuemin Wu, Lele Li
Summary: A mesoporous MOF shell was synthesized on the surface of gold nanorods to capture single AuNRs for combinational phototherapy against solid tumors. The core-shell heterostructures combine a mesoporous structure and photoinduced singlet oxygen generation behavior with plasmonic photothermal conversion characteristic of AuNRs, enabling an efficient tumor treatment strategy. Applications beyond cancer therapy, such as plasmonic harvesting of light energy for catalytic reactions within MOFs and multifunctional nanocarriers for agricultural formulations, are also highlighted.
Review
Chemistry, Physical
Shan Dai, Antoine Tissot, Christian Serre
Summary: Encapsulation of active guest compounds inside metal-organic frameworks (MOFs) can lead to properties beyond those of bare MOFs and/or guest species. Core-shell composites show better accessibility to pores, optimal diffusion of substrate, and prevent aggregation and runoff of active guests, promoting synergistic effects. Advances in synthetic strategies and potential applications, such as environmental catalysis, gas separation, and sensing, are discussed in this review to promote new generations of MOFs based composites for energy-related applications.
ADVANCED ENERGY MATERIALS
(2022)
Article
Materials Science, Biomaterials
Nisha G. Pillai, Archana K., Kyong Yop Rhee, A. Asif
Summary: A new strategy of PEGylation over core-shell MOFs of HKUST-1 and Cu-MOF-2 by a solvothermal method was demonstrated. The synthesized PEGylated core-shell MOFs showed synergistic enhancement in physicochemical and biological properties. The strategy provides a facile approach to design promising biocompatible nano-dimensional core-shell MOFs for biological applications.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Chemistry, Multidisciplinary
Mei-Hua Chen, Qian-Ying Lu, Yi-Ming Li, Ming-Ming Chu, Xue-Bo Cao
Summary: In this study, ZnO@ZIF-8 core-shell heterostructures were successfully synthesized, with ZIF-8 shell effectively increasing the specific surface area of ZnO nanorods. The synergistic effect between ZnO and ZIF-8 resulted in high photocatalytic activity, leading to rapid degradation of methylene blue under solar light irradiation. Additionally, the stability experiments demonstrated that the prepared ZnO@ZIF-8 nanocomposites retained over 95% of their photocatalytic activity after four cycles.
Article
Chemistry, Physical
Qingyuan Luo, Ronghuo Yuan, Yan-Ling Hu, Defa Wang
Summary: InxGa1-xN nanowires with core/shell structure grown on n-type Si substrate by Ni-assisted CVD method were studied for their photocatalytic properties. Thicker GaN shell was found to reduce photoactivity, and a strategy to improve performance was proposed.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Arun Kumar, Raimondo Cecchini, Claudia Wiemer, Valentina Mussi, Sara De Simone, Raffaella Calarco, Mario Scuderi, Giuseppe Nicotra, Massimo Longo
Summary: The study demonstrates the self-assembly of core-shell GeTe/Sb2Te3 nanowires on Si (100) and SiO2/Si substrates using metalorganic chemical vapour deposition catalyzed by Au nanoparticles. The obtained nanowires consist of a single crystalline GeTe core and a polycrystalline Sb2Te3 shell, with diameters ranging from 50-130 nm and lengths up to 7 micrometers. The morphology, structure, and composition of the core and core-shell nanowires were analyzed using various techniques such as SEM, XRD, micro-Raman mapping, HRTEM, and EELS.
Article
Materials Science, Multidisciplinary
Zhuo Liu, Wei Cheng, Dekui Mu, Yueqin Wu, Qiaoli Lin, Xipeng Xu, Han Huang
Summary: The influence of early-stage C diffusion on the microstructures of chromium carbides formed in the solid-state interface reaction was investigated using XPS and TEM techniques. It was found that the catalytically converted disordered carbon (DC) was the first phase formed in the early-stage reaction. Abnormal C diffusion in sputtered Cr was observed for the first time, which affected the interfacial microstructures. The formation behaviors of Cr7C3 and Cr23C6 carbides were examined, and Cr23C6 was found to be the dominant phase formed in the interface reaction. The origin and evolution of crystal twins at grain boundaries between interfacial carbides were also studied using HRTEM.
MATERIALS CHARACTERIZATION
(2023)
Article
Nanoscience & Nanotechnology
Yu Yin, Wangrui Ren, Qiyang Tan, Houwen Chen, Han Huang, Ming-Xing Zhang
Summary: A cost-effective high entropy alloy with a single face-centred cubic matrix is developed to enhance the application potential of cryogenic high entropy alloys. It exhibits temperature-dependent tensile properties, with increased yield strength, tensile strength, and ductility at lower temperatures. The alloy stands out with its relatively low cost, superior strain hardening capacity, and exceptional strength-ductility synergy at 77K, making it a promising material candidate for cryogenic applications.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Electrical & Electronic
Peng Chen, Qi Yao, Junqi Xu, Qiang Sun, Alexander J. Grutter, Patrick Quarterman, Purnima P. Balakrishnan, Christy J. Kinane, Andrew J. Caruana, Sean Langridge, Ang Li, Barat Achinuq, Emily Heppell, Yuchen Ji, Shanshan Liu, Baoshan Cui, Jiuming Liu, Puyang Huang, Zhongkai Liu, Guoqiang Yu, Faxian Xiu, Thorsten Hesjedal, Jin Zou, Xiaodong Han, Haijun Zhang, Yumeng Yang, Xufeng Kou
Summary: Intercalating ferromagnetic MnTe layers into the framework of MnBi2Te4 can create ferromagnet-intercalated MnBi2Te4 superlattices with tunable magnetic exchange interactions. By using molecular beam epitaxy, we have created [(MBT)(MnTe)(m)](N) superlattices and investigated their magnetic interaction properties using polarized neutron reflectometry and magnetoresistance measurements. The incorporation of ferromagnetic spacers adjusts the antiferromagnetic interlayer coupling of the MnBi2Te4 layers through the exchange-spring effect at MnBi2Te4/MnTe hetero-interfaces. The thickness of MnTe can be used to modulate the relative strengths of the ferromagnetic and antiferromagnetic order, and the superlattice periodicity can tailor the spin configurations of the synthesized multilayers.
NATURE ELECTRONICS
(2023)
Article
Physics, Applied
Dingbang Yang, Junjie Jiang, Jiaxin Chen, Xiao Guo, Xinhui Yang, Xiaoming Zheng, Chuyun Deng, Haipeng Xie, Fei Song, Fangping Ouyang, Xiaoming Yuan, Mingxing Chen, Han Huang
Summary: We fabricated high quality 2D/3D MoS2/MoO2 heterostructures with atomic clean interface using one-step chemical vapor deposition. The study revealed the specific epitaxial relationship between MoS2 and MoO2 and demonstrated the interfacial charge transfer from MoS2 to MoO2. The in-plane anisotropy induced by MoO2 in MoS2 expands the application of isotropic MoS2 in polarization-dependent fields.
APPLIED PHYSICS LETTERS
(2023)
Article
Engineering, Mechanical
Shang Gao, Haoxiang Wang, Han Huang, Renke Kang
Summary: This work investigated the deformation and crack formation of monocrystalline 4H-SiC involved in single grit grinding using molecular dynamics (MD) simulation. The mechanism for crack initiation and propagation in mono-crystalline 4H-SiC was revealed for the first time. Stress analysis demonstrated the driving forces and propagation directions of the cracks.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Zhuo Liu, Wei Cheng, Dekui Mu, Qiaoli Lin, Xipeng Xu, Han Huang
Summary: This study critically examined the solid-state interface reaction between single-crystal synthetic diamond and chromium metal, revealing the role of crystal orientation in the formation and growth of interfacial products. The catalytically converted carbon was found to be formed prior to chromium carbides, contrary to previous studies. The interfacial strain distribution was quantitatively measured, and an improved strain concentration was observed after the ripening of interfacial carbides. The article proposed an approach for tailoring the interfacial microstructure between synthetic diamond and bonding metals.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Review
Biology
Yian Wang, Qijia Yan, Chunmei Fan, Yongzhen Mo, Yumin Wang, Xiayu Li, Qianjin Liao, Can Guo, Guiyuan Li, Zhaoyang Zeng, Wei Xiong, He Huang
Summary: Cancer is a major cause of death globally, posing a significant burden on society. In China, it is a growing challenge for the healthcare system. This study analyzes recent data on cancer incidence, mortality, and survival rates in China in 2016, identifying key risk factors and discussing potential countermeasures for prevention and treatment.
SCIENCE CHINA-LIFE SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Junli Guo, Deping Lu, Jin Zou
Summary: The performance of Cu-Fe alloy is influenced by the solidification structure, which is determined by the microstructural evolution during solidification. The study examined the solidification sequence, solid-liquid interface variation, and microstructural evolution of Cu-20wt%Fe alloy at different cooling rates. It was found that the remelting of primary gamma-Fe dendrites occurred and the Fe phase morphology changed as the cooling rate increased. The growth of the primary gamma-Fe phase was inhibited due to insufficient diffusion of Fe and Cu at the solidification front.
Article
Engineering, Electrical & Electronic
Zihan Li, Shanshan Liu, Jiabao Sun, Jiayi Zhu, Yanhui Chen, Yunkun Yang, Linfeng Ai, Enze Zhang, Ce Huang, Pengliang Leng, Minhao Zhao, Xiaoyi Xie, Yuda Zhang, Nesta Benno Joseph, Rajdeep Banerjee, Awadhesh Narayan, Jin Zou, Wenqing Liu, Xiaodong Xu, Faxian Xiu
Summary: The Curie temperature of Fe5+xGeTe2 thin films can be modulated from 260 to 380 K via iron doping, allowing the two-dimensional material to be used to create planar spiral inductors and low-pass Butterworth filters.
NATURE ELECTRONICS
(2023)
Article
Chemistry, Physical
Xuliang Li, Zhiqi Fan, Shuiquan Huang, Mingyuan Lu, Han Huang
Summary: Determining the brittle-to-ductile transition (BDT) threshold is crucial for efficient machining processes of brittle materials. This study investigated the effects of tip shape and microstructural variation on the BDT behavior of single-crystal silicon and gallium arsenide. The critical cutting depth for BDT was influenced by both material microstructure and tip shape, with stress distribution and microstructure evolution being impacted. Using a sharp tip, silicon had a slightly smaller critical cutting depth than gallium arsenide, while with a blunt tip, gallium arsenide had a smaller critical cutting depth due to its higher brittleness index and density of crystallite defects.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Yu Yin, Qiyang Tan, Nan Yang, Xingrui Chen, Wangrui Ren, Lei Liu, Houwen Chen, Andrej Atrens, Ninshu Ma, Han Huang, Ming-Xing Zhang
Summary: In this study, a cost-effective Fe35Ni35Cr20Mo5Al5 high entropy alloy (HEA) with ultrafine microstructure (UFM) was successfully produced by manipulating the concurrent precipitation and recrystallization process. The UFM-HEA exhibited exceptional mechanical properties, including high yield strength, tensile strength and uniform elongation, as well as superior corrosion resistance compared to 316L stainless steel. This strategy not only provides insights into the development of new-generation cryogenic HEAs, but also enhances their industrial application potential.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Mechanical
Yongqiang Wang, Shuaiyang Zhang, Hao Xia, Yueqin Wu, Han Huang
Summary: This study used molecular dynamics simulation to investigate the cutting of GaN along different crystal orientations. The simulation revealed distinct outcomes for different cutting directions, with enhanced removal efficiency and generation of more dislocations when cutting on a-plane or along the [-2110] direction on m-plane. However, cutting on c-plane or along the [0001] direction on m-plane showed the potential for achieving better surface integrity. This study provides valuable insights into the effect of crystallite orientation on the cutting performance of GaN and demonstrates the importance of appropriate selection of cutting directions for improved surface quality.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Kasturi Vimalanathan, Zhi Zhang, Jin Zou, Colin L. Raston
Summary: Hollow C-70 nanotubules are formed by intense micro mixing of toluene solution of C-70 and isopropyl alcohol in a thin film of a vortex fluidic device (VFD), without the need for auxiliary reagents, high temperatures and pressures, and downstream processing. The self-assembly mechanism is consistent with the nanotubules being a mould of the high shear double helical topological flow generated within the thin film by Faraday waves and Coriolis forces.
CHEMICAL COMMUNICATIONS
(2023)
Article
Metallurgy & Metallurgical Engineering
Junli Guo, Qiang Hu, Jin Zou, Deping Lu
Summary: Cu-Fe alloys are copper-based materials with high strength and high conductivity, which have great potential. The cooling rate during solidification significantly affects the morphology and distribution uniformity of the Fe phase, making it an essential control parameter. Adjusting the cooling conditions during solidification can control the morphology and distribution uniformity of the Fe phase in Cu-Fe alloys, thereby enhancing their functional properties and enabling further applications.
METALLURGICAL RESEARCH & TECHNOLOGY
(2023)
Review
Engineering, Multidisciplinary
James L. Mead, Shiliang Wang, Soeren Zimmermann, Sergej Fatikow, Han Huang
Summary: This review article aims to compile and evaluate recent experimental techniques for characterizing the adhesion behavior of interfaces formed by 1D materials. It discusses the conformation of 1D materials to surfaces, the coupling of adhesion and friction during interfacial attachment and detachment, the use of 1D materials in nanocomposites, and the potential influence of environmental conditions on 1D interfacial interactions. It also provides a brief perspective on ongoing challenges and future directions in the field.
