Article
Chemistry, Multidisciplinary
Dezhi Zhu, Jianfeng Yan, Jiawang Xie, Guangzhi He
Summary: Metallic nanorods are important materials with tunable plasmon resonances, high photothermal conversion efficiency, and chemical stability. The shape and atomic structures of metallic nanorods are crucial for practical applications, and ultrafast laser excitation can be used for atomic-level ablation to enhance surface activity. Near-field effect plays a key role in this process, providing opportunities for tailoring metallic nanorods at the atomic level.
Article
Chemistry, Physical
Jianming Cui, Saksham Phul, Kristen A. Fichthorn
Summary: By using the theory of absorbing Markov chains, the mechanisms that control the shapes of crystals with penta-twinned structures were explored. Different types of products, including decahedra, nanorods, and nanowires, were predicted based on the morphology of the seed. The model was validated by comparing the predicted nanowire morphologies with experimental results.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Weilun Li, Wenming Tong, Anchal Yadav, Eva Bladt, Sara Bals, Alison M. Funston, Joanne Etheridge
Summary: The shape of metal nanocrystals is influenced by seed nucleation and growth environments, with surface energies and crystallinity affected by the choice of environments. By deliberately incorporating twin planes during post-seed growth, new final morphologies can be delivered, offering new routes for synthesizing different morphologies and facet orientations by breaking symmetry and introducing new facet orientations.
CHEMISTRY OF MATERIALS
(2021)
Article
Automation & Control Systems
Zhenhua Pan, Yuanqing Xia, Zhongqi Sun, Tingting Yu
Summary: This paper investigates the self-organized aggregation control of large-scale UAVs by designing a scalable distributed network architecture to overcome the nonextensible problem of traditional network topology. A novel centerless and scalable multilayer graph model is presented to organize a large number of UAVs into interconnected and globally covered layers, each consisting of undifferentiated clusters. Furthermore, a self-organized aggregation control law based on the potential function method is designed for autonomous configuration and swarming considering collision and obstacle avoidance.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2023)
Article
Engineering, Electrical & Electronic
Sabah M. Mohammad, Suvindraj Rajamanickam, Z. Hassan, Mundzir Abdullah, A. R. Shafiqa, Abdulsalam Abuelsamen
Summary: The study successfully synthesized Ag NPs/ZnO NRs nanorods array using a simple and cost-effective hydrothermal technique combined with the photo-deposition method for the fabrication of self-power MSM UV photodetector device. The presence of Ag NPs was confirmed by notable changes in the morphological surface of ZnO NRs after the photo-deposition process. The photodetector with Ag NPs showed significantly enhanced conductivity and high performance, with a responsivity value of 42.79 A W-1 and an EQE of 13,436.06% at 15 V bias voltage.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Materials Science, Multidisciplinary
Juan Yao, Ludan Zhang, Hongli Zhao, Zhitao Chen, Tengfei Bi, Huan He, Xiaoming Shen, Yuechun Fu
Summary: In this study, ZnO nanowires were successfully grown on p-Si substrates using the hydrothermal method, and a self-powered ultraviolet photodetector was constructed. The morphology and performance of the ZnO nanowires changed with increasing growth time.
Article
Chemistry, Physical
Kang Wang, Sirong Yu, Wei Li, Yuanji Song, Pu Gong, Mingshan Zhang, Huaisen Li, Daijun Sun, Xizhen Yang, Xuewu Wang
Summary: In order to prepare stainless steel mesh (SSM) with special wettability suitable for oil-water separation research, a micro-nano rough structure was constructed on the surface of SSM using electrodeposition and solvothermal methods. Finally, a ZnS superhydrophobic coating (ZnS@SSM) with high water contact angle of 158 degrees was successfully prepared on the surface of SSM. The oil-water separation efficiency of the sample was 97.8%, and the ZnS@SSM coating exhibited excellent self-healing and durability performance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Automation & Control Systems
Dengxiu Yu, C. L. Philip Chen, Hao Xu
Summary: The article proposes intelligent decision making and bionic movement control for self-organized swarms, utilizing swarm intelligent decision making and an enhanced genetic algorithm for path planning, and a new swarm motion potential function for formation generation, collision avoidance, and connectivity preservation.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Hicham Zaid, Koichi Tanaka, Michael Liao, Mark S. Goorsky, Suneel Kodambaka, Hanna Kindlund
Summary: Refractory high-entropy alloy nitride (VNbTaMoW)N layers were successfully grown on single-crystalline MgO(001) via ultrahigh vacuum direct current magnetron sputtering in Kr/N-2 gas mixtures. The alloy nitride film exhibits a dense columnar microstructure near the substrate-film interface with the growth of rather unusual 111-textured nanorods through self-organization on isostructural MgO(001).
Review
Chemistry, Inorganic & Nuclear
Zhengang Guo, Zhifeng Liu
Summary: Photoelectrochemical water splitting is an effective way to capture and convert solar energy into chemical energy, addressing current energy and environmental issues. Enhancing the efficiency of solar energy conversion relies on optimizing the performance of semiconductor photoelectrodes, including photon absorption, charge separation, and surface chemical reactions.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Bijun Geng, Xiaobing Zeng, Qianwei Liang, Li Tan, Yuyu Chen, Rongkai Ye, Jianqiang Hu
Summary: In this work, the redox reaction kinetics mechanism was used for the first time to reveal the sequential growth mechanism of gold and silver nanocrystals in Ag-Au-Ag heterojunction nanorods. The mechanism provides insight into the design and synthesis of other one-dimensional segmented metal nanostructures.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Engineering, Aerospace
Xiaorong Zhang, Wenrui Ding, Yufeng Wang, Yizhe Luo, Zehao Zhang, Jing Xiao
Summary: This paper proposes a Bio-inspired Self-organized Fission-fusion Control (BiSoFC) algorithm for the UAV swarm, which solves the problem of swarm control under dynamic obstacle interference. By achieving the fission-fusion movement of the UAV swarm, the algorithm copes with dynamic obstacles under different disturbance situations.
Article
Chemistry, Applied
Ansgar Kretzschmar, Victor Selmert, Hans Kungl, Hermann Tempel, Ruediger A. Eichel
Summary: Molecular sieves are important for gas separation and material characterization due to their ability to discriminate substances by size. This study evaluates different concepts for estimating gas molecule size and highlights some drawbacks of the widely used kinetic diameter. Alternative recommendations from existing literature are presented.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Juan Xu, Xingzhong Zhu, Lihui Xu, Caixia Kan, Daning Shi
Summary: Hard template-directed growth methods are effective for synthesizing Ag nanostructures with precise size control, while soft template methods are flexible for synthesizing Ag nanostructures with various morphologies. However, the strong confinement effect of the hard template limits the diversity of Ag nanostructures and neglects the role of the soft template.
Article
Engineering, Civil
Taehooie Kim, Kshitij Jerath
Summary: The study introduces a congestion-aware Cooperative Adaptive Cruise Control (CACC) algorithm to address the trade-off between raising the critical density and reducing congestion risk at higher penetration rates of ACC-equipped vehicles. The algorithm is based on General Motor's car-following models and adjusts driver sensitivity based on real-time congestion states. Results show that the congestion-aware CACC algorithm can increase effective critical density and reduce susceptibility to perturbations in vehicle demographics.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)