Nano Futures最新文献_第5页

Study of the adsorptive removal of (Fe+2) and (Ni+2) from water by synthesized magnetite/corn cobs magnetic nanocomposite 合成磁铁矿/玉米芯磁性纳米复合材料吸附去除水中(Fe+2)和(Ni+2)的研究

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-04-25 DOI: 10.1088/2399-1984/ac6a31

Mohamed N Sanad, S. El-Dek, U. Eldemerdash, Mohamed M. ElFaham

引用次数: 1

Participatory Utopian Sketching: A Methodological Framework for Collaborative Citizen (Re)Imagination of Urban Spatial Futures 参与式乌托邦素描:城市空间未来的协同公民(再)想象的方法论框架

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-04-01 DOI: 10.1016/j.futures.2022.102938

Suzanna Törnroth, J. Day, Moritz F. Fürst, S. Mander

引用次数: 4

Constructing practice-oriented futures for sustainable urban food policy in Bangkok 构建曼谷可持续城市食品政策的实践导向未来

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-04-01 DOI: 10.1016/j.futures.2022.102949

Kanang Kanatamaturapoj, Steven R. McGreevy, Natapol Thongplew, Motoki Akitsu, J. Vervoort, A. Mangnus, Kazuhiko Ota, Christoph D. D. Rupprecht, Norie Tamura, Maximillian Spiegelberg, Mai Kobayashi, S. Pongkijvorasin, S. Wibulpolprasert

引用次数: 5

Progress of graphdiyne-based materials for anodes of alkali metal ion batteries 碱金属离子电池负极石墨烯基材料研究进展

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-03-31 DOI: 10.1088/2399-1984/ac62e6

Manman Liu, Yue Ma, Xiaofeng Fan, D. J. Singh, W. Zheng

{"title":"Progress of graphdiyne-based materials for anodes of alkali metal ion batteries","authors":"Manman Liu, Yue Ma, Xiaofeng Fan, D. J. Singh, W. Zheng","doi":"10.1088/2399-1984/ac62e6","DOIUrl":"https://doi.org/10.1088/2399-1984/ac62e6","url":null,"abstract":"Graphdiyne (GDY)-based materials are carbon allotropes with a two-dimensional (2D) planar structure composed of diacetylene bonds (sp) and sp 2 hybridized carbons. Their unique geometrical and electronic structure give them excellent electrochemical properties. The larger specific surface area and ion-diffusion channels in pores can provide more storage sites for alkali metal ions and increase the diffusion rate of electrons and ions. Hence, GDY-based materials possess broad prospects in electrochemical energy storage and have gained more favor as anode materials for alkali ion batteries. Here, we have made a systematic summary of GDY-based materials and their derivatives, including the geometrical and electronic structures, synthesis, modifications, and storage mechanisms of Li+/Na+/K+, along with the applications in Li+/Na+/K+ batteries. In view of the current situation, the large-scale application of GDY-based materials as anodes in alkali ion batteries is still a great challenge. We hope that this work can provide a theoretical basis for GDY-based materials with superior performance, more convenient and safer preparation, and higher yield.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46668926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Multi-orbital topolectrical circuit for topological quantum states 拓扑量子态的多轨道拓扑电路

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-03-11 DOI: 10.1088/2399-1984/ac5cd2

Junjie Yao, Xiamin Hao, Biyu Song, Yizhen Jia, C. Hua, Miao Zhou

{"title":"Multi-orbital topolectrical circuit for topological quantum states","authors":"Junjie Yao, Xiamin Hao, Biyu Song, Yizhen Jia, C. Hua, Miao Zhou","doi":"10.1088/2399-1984/ac5cd2","DOIUrl":"https://doi.org/10.1088/2399-1984/ac5cd2","url":null,"abstract":"Remarkable progress has been made in using electric circuits as a powerful platform to realize a plethora of exotic topological quantum states, even of higher orders and/or dimensions. So far the proposed circuits are restricted to a single-orbital tight-binding model with different lattices. Here, we introduce the concept of a multi-orbital topolectrical circuit and construct practical LC circuits to demonstrate its superiorities. As a proof of concept, we assemble two sets of inductors in one plaquette to simulate a (px, py )-orbital model within a two-dimensional hexagonal lattice. In the presence of spin–orbit coupling, as generated by mixing voltage degrees of freedom, a quantum spin Hall (QSH) state emerges with spin-resolved edge modes propagating along the boundary in the time domain. Implementation of negative impedance converters (NICs) with nonreciprocal links transforms the circuit into a quantum anomalous Hall (QAH) state. Remarkably, we demonstrate that QSH/QAH states can be reversibly switched by tuning the resistance of NIC, and an experimental observable-edge distance ratio is proposed to facilitate the phase transition detection. This work provides an exciting playground for exploring multi-orbital physics in topolectrical circuits, paving the way for future applications in nanoelectronics, telecommunications, signal processing and quantum computing.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48498805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of Pt–Ag–Au heterogeneous truncated hollow sub-microspheres for chemically self-propelled colloidal motors 化学自推进胶体马达用Pt-Ag-Au非均相截断空心亚微球的制备

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-02-23 DOI: 10.1088/2399-1984/ac57bc

Yi Wei, Qian Zhao, Hongwen Zhang, Le Zhou, W. Cai

{"title":"Fabrication of Pt–Ag–Au heterogeneous truncated hollow sub-microspheres for chemically self-propelled colloidal motors","authors":"Yi Wei, Qian Zhao, Hongwen Zhang, Le Zhou, W. Cai","doi":"10.1088/2399-1984/ac57bc","DOIUrl":"https://doi.org/10.1088/2399-1984/ac57bc","url":null,"abstract":"Colloidal motors with cavity structure, which have advantages over solid motors in catalytic efficiency, cargo capacity and biocompatibility, are still expected. Here, we design and fabricate a type of truncated hollow sub-microsphere via organic colloidal template etching/heating and layer-by-layer isotropic deposition. The as-prepared truncated hollow sphere is of one circular open pore through the shell layer and built of Pt, Ag and Au shell layers from inside to outside. They are controllable in sphere diameter, circular open pore size and shell thickness, which depend on the template and deposition conditions. Further experiments have shown that the Ag sandwich layer and post-deposition ageing process are crucial to obtaining strong and complete truncated hollow sub-microspheres. Their formation is attributed to the template geometry and nearly isotropic deposition. Due to the catalytic Pt layer on the inner surface and the truncated hollow spherical structure, such Pt–Ag–Au hollow spheres are demonstrated to be chemically propelled colloidal motors, which can directionally move in H2O2-containing solutions. This study presents a controllable route for mass-fabricating heterogeneous multi-layer truncated hollow sub-microspheres, and provides a new type of chemically self-propelled colloidal motor.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45524554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Broadband absorbing mono, blended and hybrid nanofluids for direct absorption solar collector: a comprehensive review 宽带吸收单、混合和混合纳米流体的直接吸收太阳能集热器:综合综述

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-02-23 DOI: 10.1088/2399-1984/ac57f7

Sreehari Sreekumar, Nihilkumar Shah, J. Mondol, N. Hewitt, Supriya Chakrabarti

{"title":"Broadband absorbing mono, blended and hybrid nanofluids for direct absorption solar collector: a comprehensive review","authors":"Sreehari Sreekumar, Nihilkumar Shah, J. Mondol, N. Hewitt, Supriya Chakrabarti","doi":"10.1088/2399-1984/ac57f7","DOIUrl":"https://doi.org/10.1088/2399-1984/ac57f7","url":null,"abstract":"The evolution of nanofluids over the years has opened new research opportunities in the field of renewable energy. Research on the optical properties of nanofluids for application in direct absorption solar collectors (DASCs) is progressing at a burgeoning speed. In a DASC system, nanofluid with high optical absorptivity can convert the incident solar energy into the thermal energy of the fluid. The dispersed nanoparticles in the fluid act in the process through the phenomenon of absorption and scattering. Studies conducted on the optical property characterization of monocomponent nanofluids have become saturated. Moreover, the photothermal efficiency (PTE) of the nanofluid can be enhanced by using multicomponent nanofluids. Nanofluids prepared using varying materials, shapes and sizes of nanoparticles can tune the absorption spectra of the bulk fluid to improve the PTE. A hybrid nanocomposite can similarly enhance the absorptivity due to the synergy of materials present in the nanocomposite particle. In this review, a comprehensive survey on the synthesis and optical characterization of different monocomponent, blended and hybrid nanocomposite nanofluids has been performed.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45536706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

One-pot synthesis of 1T MoS2/MWCNT hybrids for enhanced zinc-ion storage 一锅法合成1T MoS2/MWCNT杂化物增强锌离子存储

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-01-26 DOI: 10.1088/2399-1984/ac4f2a

Yuting Wang, Zemin Zhang, Mingxue Li

引用次数: 3

An investigation into the environmental and therapeutic applications of holmium-doped titanium dioxide (Ho-TiO2) nanocatalysts: a kinetic and thermodynamic study of the photocatalytic degradation of Safranin O dye 掺钬二氧化钛(Ho-TiO2)纳米催化剂的环境和治疗应用研究:光催化降解红皂素O染料的动力学和热力学研究

IF 2.1 4区材料科学

Nano Futures Pub Date : 2021-12-17 DOI: 10.1088/2399-1984/ac446c

F. A. Jan, Wajidullah, R. Ullah, Salman, N. Ullah, A. Salam

{"title":"An investigation into the environmental and therapeutic applications of holmium-doped titanium dioxide (Ho-TiO2) nanocatalysts: a kinetic and thermodynamic study of the photocatalytic degradation of Safranin O dye","authors":"F. A. Jan, Wajidullah, R. Ullah, Salman, N. Ullah, A. Salam","doi":"10.1088/2399-1984/ac446c","DOIUrl":"https://doi.org/10.1088/2399-1984/ac446c","url":null,"abstract":"Titanium dioxide (TiO2) and holmium-doped titanium dioxide (Ho-TiO2) nanoparticles(NPs) were synthesized through a sol gel route. The synthesized NPs were characterized by ultraviolet-visible (UV–Vis) spectroscopy, x-ray diffraction (XRD), energy dispersive x-ray analysis, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy, and photoluminescence (PL) spectroscopy. DNA binding, antibacterial, hemolysis, and antioxidant assays of the synthesized NPs were also carried out in order to find their therapeutic applications. Successful doping of TiO2 with Ho reduced the bandgap from 3.10 to 2.88 eV. SEM and XRD analysis showed that both TiO2 and Ho-TiO2 NPs exhibit a tetragonal structure and the morphology of the particles improved and agglomeration reduced as a result of doping. The PL emission intensity of TiO2 also reduced with doping. The degradation of Safranin O dye over both the catalysts followed first-order kinetics. The calculated activation energy for the photodegradation of the given dye was found to be 51.7 and 35.2 KJ mol−1 for bare TiO2 and Ho-TiO2 NPs, respectively. After 180 min, 84% and 87% dye degradation was observed using pure TiO2 and Ho-TiO2, respectively. A high percent of degradation of the dye was found at a low concentration (20 ppm) and at optimal dosage (0.035 g) of both the catalysts. The rate of Safranin O dye degradation was found to increase with an increase in temperature and pH of the medium. A DNA binding study revealed that Ho-TiO2 NPs are more capable of binding to human DNA. An antibacterial activity study showed that Ho-TiO2 NPs were more efficient against both gram-negative and gram-positive bacterial strains compared to pure TiO2. Hemolysis assay showed that TiO2 and Ho-TiO2 NPs are non-biocompatible. Ho-TiO2 NPs showed higher anti-oxidant activity compared to bare TiO2.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47681698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Nanocrystals of metal halide perovskites and their analogues as scintillators for x-ray detection 金属卤化物钙钛矿纳米晶体及其类似物作为x射线探测闪烁体

IF 2.1 4区材料科学

Nano Futures Pub Date : 2021-12-10 DOI: 10.1088/2399-1984/ac421c

Huiwen Chen, Yunlong Li, Bo Zhao, Jun Ming, D. Xue

引用次数: 5