Article
Computer Science, Artificial Intelligence
Steve Kench, Samuel J. Cooper
Summary: SliceGAN is a generative approach that constructs complex 3D images from 2D image examples, making it particularly useful for studying microstructured materials. It leverages high-quality 2D imaging techniques to create 3D datasets, eliminating the need for challenging 3D training data. This approach demonstrates promising potential for design optimization, with the ability to generate high-fidelity 3D datasets using a single representative 2D image.
NATURE MACHINE INTELLIGENCE
(2021)
Article
Chemistry, Physical
Leah Isseroff Bendavid, Serena Inoue, Brandon Mai, Sandra Yu
Summary: In this study, CdS/graphene bilayers were examined for their enhanced photocatalytic activity. Graphene oxide (GO) was used to strengthen interfacial adhesion in the CdS/graphene bilayer and tune its electronic properties. The effects of oxygen concentration and functional group identity on the interfacial and electronic properties were investigated. It was found that increasing the oxygen concentration weakened the interfacial adhesion, while increasing the hydroxyl functional group concentration could potentially enhance adhesion. The electronic structure of CdS monolayer was not significantly affected by the GO layer, preserving its optimal optoelectronic properties. However, the band edge alignment between the layers could be tuned by varying the oxygen composition of GO, thus increasing the efficiency of photoexcited charge transfer.
SURFACES AND INTERFACES
(2022)
Article
Physics, Multidisciplinary
Tatiana Latychevskaia
Summary: In this study, a new method is proposed to reconstruct 3D sample distribution from a single 2D intensity measurement, exceeding the classical limit in z resolution. This method is practical for radiation-sensitive materials or experimental setups with constraints on the number of intensity measurements.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Physical
Ziyuan Liu, Lei Tao, Yan-Fang Zhang, Jinbo Pan, Shixuan Du
Summary: Through high-throughput calculations, we have identified 39 two-dimensional ferroelectric materials with low switching barriers and large polarization. These materials include alpha, beta, and gamma phases. Seven of them exhibit ferroelectric switching barriers below 0.3 eV/f.u., polarization larger than 2 x 10(-10) C/m, and high thermodynamic stability. We have also found that larger electronegativity differences result in larger ferroelectric polarization.
Article
Chemistry, Multidisciplinary
Joel S. Miller
Summary: Layered artificial antiferromagnets, fabricated using atom deposition techniques, consist of nanometer-scale magnetically ordered layers separated by a nonmagnetic layer. They played a crucial role in the discovery of the giant magnetic effect (GMR) and the development of computer memory and spintronics. Insulating antiferromagnets, formed using synthetic chemical methods, are expected to enable new phenomena and applications by enhancing the propagation of spin currents.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Zizheng Wang, Hao Jiang, Guangfu Wu, Yi Li, Teng Zhang, Yi Zhang, Xueju Wang
Summary: This study reports a method for programmable three-dimensional microfluidic structures assembled from polydimethylsiloxane (PDMS) and shape-memory polymers (SMPs). The approach allows for the creation of diverse geometries and the ability to program temporary shapes, with well-maintained fluid flow during deformation and shape recovery.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Yuttana Intaravanne, Ruoxing Wang, Hammad Ahmed, Yang Ming, Yaqin Zheng, Zhang-Kai Zhou, Zhancheng Li, Shuqi Chen, Shuang Zhang, Xianzhong Chen
Summary: In this study, we propose and experimentally demonstrate a method for achieving color-selective three-dimensional (3D) polarization structures using a single metasurface. By controlling the incident wavelengths, different polarization structures can be achieved in the same observation region, providing polarization control with color information in 3D space.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Songyue Chen, Cheng Bai, Chenying Zhang, Da Geng, Ruiliang Liu, Yu Xie, Wei Zhou
Summary: The flexible three-dimensional force sensor, mimicking bionic human skin, utilizes contact resistance changes from three interlocked hemispheres units for force detection. The sensor demonstrates good sensitivity and response time, suitable for applications like precise grasping.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Biology
Justine M. Pinskey, Adhya Lagisetty, Long Gui, Nhan Phan, Evan Reetz, Amirrasoul Tavakoli, Gang Fu, Daniela Nicastro
Summary: This study used cryo-electron microscopy to investigate flagella in the aquatic eukaryote choanoflagellates, and found that their flagellar structures are more similar to those of multicellular organisms. Additionally, unique features of choanoflagellate flagella were described, and unknown functional structures were reported on the extracellular surface of the flagellar membrane.
Article
Engineering, Electrical & Electronic
Jinshui Miao, Chloe Leblanc, Jinjin Wang, Yue Gu, Xiwen Liu, Baokun Song, Huairuo Zhang, Sergiy Krylyuk, Weida Hu, Albert Davydov, Tyson Back, Nicholas Glavin, Deep Jariwala
Summary: Low power consumption is an important requirement in the development of modern electronics. Tunnel field-effect transistors based on two-dimensional materials offer improved electrostatic control and potentially higher on-current densities and on/off ratios.
NATURE ELECTRONICS
(2022)
Editorial Material
Optics
Kosmas L. Tsakmakidis, Tomasz P. Stefanski
Summary: Topological features, particularly nodal rings, which usually require three-dimensional structures, have been experimentally demonstrated in a simple one-dimensional photonic crystal, representing a significant breakthrough.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Optics
Bumho Kim, Jicheng Jin, Zhi Wang, Li He, Thomas Christensen, Eugene J. Mele, Bo Zhen
Summary: Researchers have achieved three-dimensional nonlinear optical materials by precisely controlling and twisting individual two-dimensional van der Waals interfaces. By adding pseudo-screw symmetries to WS2 stacks, new nonlinear crystals with fundamentally different properties from natural WS2 have been realized. The size of the newly enabled nonlinearity can be enhanced by controlling the number of interfaces and the excitation wavelength.
Review
Endocrinology & Metabolism
Michael C. Lawrence
Summary: The article describes the three-dimensional structure of insulin and its receptor, as well as their interactions, highlighting research gaps in structural understanding. A near-complete picture has been obtained of hormone receptor interactions, providing new insights and requiring revision of the existing hormone receptor engagement models.
MOLECULAR METABOLISM
(2021)
Article
Chemistry, Physical
Lei Yang, Tengyang Gao, Saisai Yuan, Ying Dong, Yiming Chen, Xijuan Wang, Chuanxiang Chen, Liang Tang, Teruhisa Ohno
Summary: This study developed a heterojunction photocatalyst by in-situ growth of 2D cadmium sulfide on the surface of copper-doped In2S3 to suppress charge recombination. The experiment showed that the efficient interface contact formed between In2S3 and CdS promoted charge transfer and exhibited a high spatial charge separation rate.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Aerospace
John W. Kurelek, Burak A. Tuna, Serhiy Yarusevych, Marios Kotsonis
Summary: Experimental assessment of three-dimensional flow development over a NACA 0018 airfoil under specific conditions reveals the formation of strongly two-dimensional separation bubbles in both natural and weakly excited cases. Analysis shows the formation of spanwise-oriented and strongly two-dimensional shear-layer vortices in the separation bubble upstream, with spanwise undulations in the vortex filaments leading to the development of hairpinlike structures downstream.
Article
Materials Science, Multidisciplinary
Gengjie Wang, Yaoyin Zhang, Lu Zhu, Yujie Ma, Shumin Zhang, Zhifu Huang, Zhenhua Cao, Xiangkang Meng
Summary: In this study, coating of various metals on carbon nanotubes was performed using magnetron sputtering and molecular dynamics simulation. Transmission electron microscopy and simulation studies revealed three modes of metal nucleation on the carbon nanotube surface: particle growth, island growth, and film growth. The nucleation mode was mainly influenced by three factors: the initial energy of the metal before reaching the carbon nanotube surface, the energy required for carbon nanotube to bond with metal, and the diffusion energy of metal atoms on the carbon nanotube surface. Based on the analysis of jump trajectory, potential energy, and temperature change of metal atoms in molecular dynamics simulation, a method for improving deposition ratios by alloying and increasing deposition rate was proposed and verified through simulation and experiments. These results provide a new approach to regulate the interface structure and nucleation model of carbon nanotubes and metals.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Qingxi Zhai, Kuo-Juei Hu, Yuxuan Shi, Hurong Ji, Hao Wu, Yilun Ren, Biao Wang, Shaochun Tang, Yujie Ma, Mingjin Cui, Xiangkang Meng
Summary: In this study, a novel amorphous-crystalline heterostructure material, MS/Ni0.67Fe0.33-MOF, was successfully synthesized by embedding crystalline metal sulfide (MS) into amorphous Ni0.67Fe0.33-MOF. The material exhibited excellent catalytic performance, durability, and stability with low overpotential and small Tafel slope in the electrochemical oxygen evolution reaction. This work provides important insights into the design of highly efficient catalysts for optimizing water-splitting systems.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jingrong Zhai, Ye Hu, Mengfei Su, Jiangwei Shi, Hang Li, Yezhi Qin, Feng Gao, Qingyi Lu
Summary: Bismuth and indium species are integrated into a uniform heterogeneous spherical structure, forming a core-shell C@In2O3@Bi-50 catalyst with high selectivity, large partial current density, and long-term stability for electrocatalytic reduction of CO2 to formic acid.
Article
Chemistry, Multidisciplinary
Hang Li, Xinyu Ding, Jiangwei Shi, Mengfei Su, Ye Hu, Chunyan Zhang, Feng Gao, Qingyi Lu
Summary: Defect engineering has played a significant role in promoting the application of various technologies. However, selectively manufacturing defect sites in existing material systems remains challenging. This study demonstrates in situ site-directed tailoring of metal sites in Prussian blue analogs (PBA) by utilizing the reducibility differences of different metal atoms, resulting in naturally nonpreferred unsaturated coordination centers. The in situ capture of small reducing molecules also allows for site-directed tailoring of crystal facets during growth, leading to oriented 1D growth. The resulting PBA with nonpreferred unsaturated coordination centers exhibit excellent catalytic properties for the oxygen evolution reaction, making it suitable for various applications.
Article
Chemistry, Physical
Hao Wu, Zexu Li, Zhichao Wang, Yujie Ma, Sirui Huang, Fan Ding, Fengqi Li, Qingxi Zhai, Yilun Ren, Xiaowen Zheng, Yurong Yang, Shaochun Tang, Yu Deng, Xiangkang Meng
Summary: Introduces a two-step method for preparing medium-entropy metal sulfide nanoparticles. Compared to metal-organic frameworks (MOFs) precursors, medium-entropy metal sulfides exhibit better electrocatalytic performance in oxygen evolution and reduction reactions. Sulfidation leads to the metallic ions possessing higher valence states, as confirmed by electron energy loss spectroscopy (EELS) and X-ray photoelectron spectroscopy (XPS) characterization. Rechargeable zinc-air batteries assembled with the Fe1.2(CoNi)1.8S6 medium-entropy metal sulfide nanoparticles catalyst show superior performances compared to the commercial catalyst (Pt/C+RuO2). The reported fabrication strategy may contribute to fundamental research and industrial applications of medium-entropy materials in rechargeable zinc-air batteries.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Haifeng Bian, Guoli Zhang, Qingxi Zhai, Yanyan Du, Yujie Ma, Beibei Yang, Shaochun Tang, Duan Bin, Xiangkang Meng, Hongbin Lu
Summary: Stainless steel is a potential material for bipolar plates, but faces corrosion issues in acidic environments. Ti3C2Tx is a possible coating for stainless steel bipolar plates, but can lead to galvanic corrosion. A PPY/Ti3C2Tx-AE double-layer coating is designed and prepared on 304SS bipolar plates, showing superior corrosion resistance and long-term stability compared to other coatings. The excellent performance is attributed to barrier and anodic protection effects, as well as a solution to galvanic corrosion. This new coating system provides insights for the design of double-layer coatings for stainless steel bipolar plates.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Physical
Biao Wang, Yilun Ren, Shaowei Chen, Qingxi Zhai, Yuxuan Shi, Yujie Ma, Shaochun Tang, Xiangkang Meng
Summary: A new efficient and robust electrocatalyst with a cactus-like hierarchical structure was developed, incorporating zero-dimensional, one-dimensional, and two-dimensional components. This catalyst exhibited remarkable cycle life and catalytic activity in lithium-sulfur batteries. This research provides a new strategy for the development of long-life Li-S batteries.
Article
Chemistry, Multidisciplinary
Yilun Ren, Yujie Ma, Biao Wang, Shaozhong Chang, Qingxi Zhai, Hao Wu, Yuming Dai, Yurong Yang, Shaochun Tang, Xiangkang Meng
Summary: Rich p-n junction CoS2/ZnS heterostructures embedded on N-doped carbon nanosheets are fabricated as a continuous and efficient bidirectional catalyst, which can accelerate the conversion of LiPSs and promote the diffusion and decomposition of Li2S, while also possessing strong chemisorption ability to anchor LiPSs and superior affinity for homogeneous Li deposition. The assembled cell with a CoS2/ZnS@PP separator exhibits excellent cycling stability and areal capacity, showing the potential of the catalyst in promoting Li-S chemistry.
Article
Materials Science, Coatings & Films
Haifeng Bian, Yanyan Du, Yilun Ren, Hao Wu, Yujie Ma, Beibei Yang, Shaochun Tang, Duan Bin, Hongbin Lu, Xiangkang Meng
Summary: A PPY/Ti3C2Tx MXene composite coating was synthesized on 304SS BPs by one-step electrodeposition, which showed improved corrosion resistance and stability in simulated PEMFC environment compared to pure PPY coating. The introduction of MXene enhanced the barrier effect, anodic protection effect, adhesion, as well as the conductivity of the coating.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Physical
Hao Wu, Zhichao Wang, Zexu Li, Yujie Ma, Fan Ding, Fengqi Li, Haifeng Bian, Qingxi Zhai, Yilun Ren, Yuxuan Shi, Yurong Yang, Yu Deng, Shaochun Tang, Xiangkang Meng
Summary: In this study, low-cost and high-efficiency electrocatalysts Fe-1.2(CoNi)(1.8)Se-x medium-entropy metal selenides (MESes) nanoparticles are successfully prepared via the selenylation of metal-organic frameworks (MOFs) precursors. The optimized Fe-1.2(CoNi)(1.8)Se-6 MESe exhibits outstanding electrocatalytic performance in alkaline media, with low overpotentials of 66 and 216 mV at 10 mA cm(-2) for the hydrogen evolution reaction and oxygen evolution reaction, respectively. A full electrolysis apparatus with Fe-1.2(CoNi)(1.8)Se-6 MESe as both cathode and anode achieves a current density of 10 mA cm(-2) at a potential of 1.55 V. Overall, this strategy of medium-entropy materials provides a low-cost approach to fabricate energy storage and conversion devices.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Gengjie Wang, Lin Li, Shumin Zhang, Lu Zhu, Yaoyin Zhang, Zhifu Huang, Zhenhua Cao, Xiangkang Meng
Summary: This study investigates the microstructure and substrate temperature dependence of FeCoNiCrCu high-entropy alloy (HEA) coatings on carbon nanotube (CNT) surfaces using experimental and molecular dynamics simulations. The crystal structure of FeCoNiCrCu evolves from amorphous to stacking faults (SFs), multiple-fold twins, and columnar grains as the CNT substrate temperature increases. The formation of SFs and microtwins is induced by mismatch stress at the interface of HEAs and CNT when the CNT substrate temperature is less than 800 K. When the CNT substrate temperature is greater than 800 K, thermal stress induces the formation of multiple-fold twins on the surface of HEAs coating. These findings offer a new method for designing and controlling the interface structure between HEAs and CNTs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Materials Science, Ceramics
Li Jiang, Mianyu Bao, Yanmao Dong, Yan Yuan, Xing Zhou, Xiangkang Meng
Summary: Metallic glass (MG) is a new type of multi-component alloy with a unique disordered atomic stacking structure, which is gradually recognized as a promising anticorrosive material. This review focuses on the current studies and developments concerning corrosion resistant MGs, and provides valuable suggestions for subsequent research.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Nanoscience & Nanotechnology
Gengjie Wang, Lin Li, Shumin Zhang, Lu Zhu, Yaoyin Zhang, Zhifu Huang, Zhenhua Cao, Xiangkang Meng
Summary: A double pulse carbothermal shock process was used to coat the surface of high entropy alloy (HEA) nanoparticles with graphene, solving the problem of their high chemical activity. This improved the feasibility of storage and transportation.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Multidisciplinary
Fengqi Li, Hao Wu, Shaochen Lv, Yujie Ma, Biao Wang, Yilun Ren, Cong Wang, Yuxuan Shi, Hurong Ji, Jian Gu, Shaochun Tang, Xiangkang Meng
Summary: This study successfully fabricated a dual-phase medium-entropy metal sulfide (dp-MEMS) of (FeCoNiMn2)S2, which demonstrates ultra-efficient catalytic activity and surprisingly stability for the oxygen evolution reaction (OER). The coexistence of dual-phase (FCC + HCP) structures effectively inhibits the structure collapse and performance attenuation during OER processes. Density functional theory calculations reveal that the formation of (FeCoNiMn2)S2 dp-MEMS results in the proximity of the d-band center to the Fermi level.
Review
Chemistry, Physical
Hang Li, Li Ling, Shengfa Li, Feng Gao, Qingyi Lu
Summary: High entropy nanomaterials (HEMs) have drawn significant attention in recent years due to their unique properties and potential applications in catalysis. This review provides an overview of the synthesis, structural design, and electrocatalytic applications of HEMs. The challenges and potential solutions for studying HEMs are discussed, as well as the superior properties and applications of HEMs in various electrocatalysis reactions. This review aims to promote the development of HEMs in the field of electrocatalysis.
