Nano Trends最新文献_第10页

A perspective on the synergistic use of 3D printing and electrospinning to improve nanomaterials for biomedical applications 3D打印和静电纺丝协同使用改善生物医学应用纳米材料的前景

Nano Trends Pub Date : 2023-10-09 DOI: 10.1016/j.nwnano.2023.100025

Ovinuchi Ejiohuo

{"title":"A perspective on the synergistic use of 3D printing and electrospinning to improve nanomaterials for biomedical applications","authors":"Ovinuchi Ejiohuo","doi":"10.1016/j.nwnano.2023.100025","DOIUrl":"https://doi.org/10.1016/j.nwnano.2023.100025","url":null,"abstract":"<div>3D printing and electrospinning are used to fabricate complex structures with improved properties. Combining 3D printing and electrospinning potentially creates composite structures with even superior properties for biomedical applications. However, there is limited research, use, and literature on this synergy. While 3D printing is used extensively in the biomedical and pharmaceutical industries, the 3D printed polymer strength can be limited due to the high cooling rate during the printing process, resulting in a lack of crystallinity. Additives such as crosslinkers and reinforcements such as particles, nanomaterials, and fibers are often incorporated into the polymer melt to improve its properties. One promising reinforcement is electrospun nanofibers, which have high aspect ratios, specific surface area, and porosity. However, electrospinning can result in variability in fiber size and morphology.Further research is needed to optimize the technique and improve its reproducibility. This perspective provides an assessment of this synergistic technology. This study explores the potential for biomedical applications while offering opinions on the most recent research combining 3D printing and electrospinning. The fact that effective 3D printing and electrospinning integration can generate a powerful platform to develop nanomaterials with superstructures highlights the high significance of this perspective.</div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"4 ","pages":"Article 100025"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50178912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical epitaxy of nanostructures 纳米结构的电化学外延

Nano Trends Pub Date : 2023-10-03 DOI: 10.1016/j.nwnano.2023.100024

Yuwei Guo , Yang Hu , Jian Shi

引用次数: 0

Photocatalytic H2O2 production in controlled oxidative environments using covalent triazine frameworks 使用共价三嗪框架在受控氧化环境中光催化产生H2O2

Nano Trends Pub Date : 2023-09-27 DOI: 10.1016/j.nwnano.2023.100023

Sunil Kumar , Bolormaa Bayarkhuu , Hyorin Ahn , Hyekyung Cho , Jeehye Byun

{"title":"Photocatalytic H2O2 production in controlled oxidative environments using covalent triazine frameworks","authors":"Sunil Kumar , Bolormaa Bayarkhuu , Hyorin Ahn , Hyekyung Cho , Jeehye Byun","doi":"10.1016/j.nwnano.2023.100023","DOIUrl":"https://doi.org/10.1016/j.nwnano.2023.100023","url":null,"abstract":"<div>An emerging sustainable technology for the photocatalytic synthesis of hydrogen peroxide (H2O2) from molecular oxygen and sunlight has garnered significant research interest. The addition of sacrificial agents often enhances O2 reduction for H2O2 production but also results in the accumulation of their oxidized impurities in the reaction media. Exploring photo-oxidative reaction designs, therefore, is critical to improving photocatalytic H2O2 production. Herein, we report that controlling oxidative reaction media makes a significant difference in photocatalytic H2O2 production. The challenging toluene oxidation could be integrated with photocatalytic O2 reduction, co-producing H2O2 as well as benzaldehyde. Covalent triazine frameworks (CTFs) were selected as platform photocatalysts, where the CTF with a thiophene linker exhibited a high H2O2 production (105 µmol) with toluene oxidation under simulated sunlight, which was 4.7- and 2.5-fold higher than that observed with H2O (22.3 µmol) and H2O/alcohol (42.4 µmol) oxidation, respectively. The theoretical calculation reveals that the binding affinities of toluene and O2 on CTF surfaces enable the simultaneous production of benzaldehyde and H2O2, respectively. A dual-phase system composed of toluene and water layers allows simple separation of the two products with high purity. Our finding demonstrates the crucial influence of oxidative environments in photocatalytic O2 reduction, showing the potential of toluene photo-oxidation as a cooperative reaction medium for H2O2 production.</div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"4 ","pages":"Article 100023"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50178913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review on MnCo2S4-based composite materials for supercapacitors 超级电容器用MnCo2S4基复合材料研究进展

Nano Trends Pub Date : 2023-09-26 DOI: 10.1016/j.nwnano.2023.100022

Shamali S. Rendale , Abhishek A. Kulkarni , Hemraj M. Yadav , Kiran Kumar K. Sharma , Tejasvinee S. Bhat

{"title":"Review on MnCo2S4-based composite materials for supercapacitors","authors":"Shamali S. Rendale , Abhishek A. Kulkarni , Hemraj M. Yadav , Kiran Kumar K. Sharma , Tejasvinee S. Bhat","doi":"10.1016/j.nwnano.2023.100022","DOIUrl":"https://doi.org/10.1016/j.nwnano.2023.100022","url":null,"abstract":"<div>Manganese-cobalt sulfide (MnCo2S4) based materials have shown immense potential in the field of energy storage which can be attributed to the high theoretical capacitance, cost-effectiveness, abundance, and feasibility in the synthesis. The present review is mainly classified into two categories of electrode materials: the pristine MnCo2S4 and the composites of MnCo2S4. Over the years, there have been numerous reports on this topic also comprised different experimentations. This report mainly reviews the advances that have taken place over time in MnCo2S4-based electrode materials alongside studying the effects of the morphology and the constituents of MnCo2S4. Moreover, the MnCo2S4 composites show higher performances than the pristine MnCo2S4, including a higher delivery of capacitance, energy density, and power density. Although the interest in this topic is constantly increasing, there is ample scope for the development of MnCo2S4-based materials on a large scale. The review also provides the current shortcomings in our observation and the possible solutions to overcome them.</div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"4 ","pages":"Article 100022"},"PeriodicalIF":0.0,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50178914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A first-principles investigation on the structural, stability and mechanical properties of novel Ag, Au and Cu-graphdiyne magnetic semiconducting monolayers 新型Ag、Au和Cu石墨烯磁性半导体单层结构、稳定性和力学性能的第一性原理研究

Nano Trends Pub Date : 2023-09-24 DOI: 10.1016/j.nwnano.2023.100021

Bohayra Mortazavi , Fazel Shojaei , Xiaoying Zhuang

{"title":"A first-principles investigation on the structural, stability and mechanical properties of novel Ag, Au and Cu-graphdiyne magnetic semiconducting monolayers","authors":"Bohayra Mortazavi , Fazel Shojaei , Xiaoying Zhuang","doi":"10.1016/j.nwnano.2023.100021","DOIUrl":"https://doi.org/10.1016/j.nwnano.2023.100021","url":null,"abstract":"<div>Most recently, silver-metalated graphdiyne (GDY) nanomembranes have been fabricated using the wet-chemistry approach, with highly efficient response for light-driven decomposition of antibiotics (ACS Appl. Nano Mater. 2023, 6, 7395). Inspired by this exciting advance, herein for the first time we theoretically explore the key physical properties of the single-layer M-(N)GDY (M=Cu, Ag, Au) monolayers. Spin-polarized density functional theory (DFT) results reveal that metalated GDY monolayers favor a high-spin ground state, presenting a magnetic moment of 3 µB/unitcell. The sheets are characterized as small band gap magnetic semiconductors, ranging between 0.112 and 0.960 eV, in which only one spin contributes to the band gap. Ab-initio molecular dynamics results confirm the remarkable thermal stability of the constructed graphdiyne nanomembranes at 1000 K. The dynamical stability and mechanical properties at the ground state are furthermore investigated using machine learning interatomic potentials. The ultimate tensile strengths of the metalated graphdiyne lattices are found to be decent, over 6 GPa close to the ground state, but a few folds lower than the native metal-free counterparts. The presented first-principles results confirm remarkable thermal, dynamical and mechanical stability, and appealing electronic characteristics of the metalated graphdiyne nanosheets, attractive to design advanced light-weight energy storage/conversion and spintronic nanosystems.</div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"4 ","pages":"Article 100021"},"PeriodicalIF":0.0,"publicationDate":"2023-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50178915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electronic structures and properties of lead-free cesium- or rubidium-based perovskite halide compounds by first-principles calculations 用第一性原理计算无铅铯基或铷基钙钛矿卤化物的电子结构和性质

Nano Trends Pub Date : 2023-09-16 DOI: 10.1016/j.nwnano.2023.100020

Riku Okumura, Takeo Oku, Atsushi Suzuki

引用次数: 1

Recent trends in metal-doped carbon nitride-catalyzed heterogeneous light-driven organic transformations 金属掺杂氮化碳催化非均相光驱动有机转化的最新趋势

Nano Trends Pub Date : 2023-09-09 DOI: 10.1016/j.nwnano.2023.100019

Pengfei Zhou , Qian Yang , Yurong Tang , Yunfei Cai

引用次数: 0

Research of graphdiyne materials applied for electrochemical energy storage 石墨烯材料在电化学储能中的应用研究

Nano Trends Pub Date : 2023-09-04 DOI: 10.1016/j.nwnano.2023.100017

Deyi Zhang , Xiaodong Li , Wenjing Liu , Jingchi Gao , Xingru Yan , Qin Liu , Changshui Huang

{"title":"Research of graphdiyne materials applied for electrochemical energy storage","authors":"Deyi Zhang , Xiaodong Li , Wenjing Liu , Jingchi Gao , Xingru Yan , Qin Liu , Changshui Huang","doi":"10.1016/j.nwnano.2023.100017","DOIUrl":"https://doi.org/10.1016/j.nwnano.2023.100017","url":null,"abstract":"<div>In recent decades, as the world has grappled with the twin challenges of environmental degradation and energy scarcity, the search for sustainable, efficient, and environmentally sound energy technologies has become more urgent than ever. Interest in carbon-based materials has surged in recent years because they are environmentally friendly, abundant, and chemically stable. As an emerging carbon allotrope, graphdiyne (GDY) is a promising candidate for next-generation energy devices due to its unique chemical structure, natural porosity (the pore diameter is 0.542 nm and the layer spacing is 0.365 nm), high conjugation, amazing charge mobility, excellent conductivity, and excellent stability. Here we reviewed the applications of GDY and its derivatives in electrochemical energy storage have been reviewed, including intrinsic GDY (GDY film, GDY with different aggregated morphologies, such as nanotubes, nanowires, and nanostrips), heteroatom doped GDY, GDY composite, and GDY derivates. The preparation strategies of those GDY-based materials and their performances applied in the electrochemical energy storage devices have been compared and discussed. GDY has been reported extensively to show great potential in various energy storage devices including lithium-ion batteries (LIBs), sodium-ion batteries (SIBs), and potassium-ion batteries (KIBs), of which the theoretical capacities are up to 2553 (LIBs), 2006 (SIBs), 1600 (KIBs) mAh/g, respectively. This review covers the latest developments, challenges and prospects of GDY based materials for the applications of various energy storage fields. Hopefully, this paper can provide valuable insights for the research of GDY and related carbon materials in electrochemical energy storage and promote the application of carbon materials.</div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"4 ","pages":"Article 100017"},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50178910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced photoelectrochemical water splitting in ternary layered chalcogenide ZnIn2S4 coupled with MWCNT 三元层状硫族化合物ZnIn2S4与MWCNT耦合增强光电化学水分解

Nano Trends Pub Date : 2023-09-04 DOI: 10.1016/j.nwnano.2023.100018

Mohit Khosya, Mohd Faraz, Neeraj Khare

{"title":"Enhanced photoelectrochemical water splitting in ternary layered chalcogenide ZnIn2S4 coupled with MWCNT","authors":"Mohit Khosya, Mohd Faraz, Neeraj Khare","doi":"10.1016/j.nwnano.2023.100018","DOIUrl":"https://doi.org/10.1016/j.nwnano.2023.100018","url":null,"abstract":"<div>Layered hexagonal zinc indium sulfide coupled with multiwalled carbon nanotubes (MWCNT/H-ZnIn2S4) nanocomposites were prepared via using the hydrothermal method and investigated its photoelectrochemical (PEC) water-splitting properties. A series of MWCNT/H-ZnIn2S4 nanocomposites with different concentrations of MWCNT have been synthesized. The effects of the addition of different concentrations of MWCNT on the PEC performance of H-ZnIn2S4 material are studied. The outcomes showed that the maximum value of photocurrent density is obtained for 20 wt% MWCNT/H-ZnIn2S4, which is ∼3.8 times higher as compared to the H-ZnIn2S4 photoanode under visible light illumination. The enhancement in the current density is because of the electron-accepting behavior of MWCNT that helps in the effective separation and transfer of charges at the interface. The ability of MWCNT to accept and transport electrons offers a better path to regulate the movement of photogenerated charge carriers, extending the lifetime of the photogenerated charges produced in the semiconductors. A plausible mechanism for observed enhanced PEC activity of MWCNT/H-ZnIn2S4 nanocomposites is provided, which is supported by impedance spectroscopy and Mott-Schottky results.</div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"4 ","pages":"Article 100018"},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50178908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emperor's new clothes: Novel textile-based supercapacitors using sheep wool fiber as electrode substrate 皇帝的新衣：以羊毛纤维为电极基底的新型纺织超级电容器

Nano Trends Pub Date : 2023-09-01 DOI: 10.1016/j.nwnano.2023.100014

Alyssa Grube , Ahmad Arabi Shamsabadi , Mostafa Dadashi Firouzjaei , Syed Ibrahim Gnani Peer Mohamed , Laurel Hilger , Mark Elliott , Kaitlin McKenzie , Mona Bavarian

{"title":"Emperor's new clothes: Novel textile-based supercapacitors using sheep wool fiber as electrode substrate","authors":"Alyssa Grube , Ahmad Arabi Shamsabadi , Mostafa Dadashi Firouzjaei , Syed Ibrahim Gnani Peer Mohamed , Laurel Hilger , Mark Elliott , Kaitlin McKenzie , Mona Bavarian","doi":"10.1016/j.nwnano.2023.100014","DOIUrl":"https://doi.org/10.1016/j.nwnano.2023.100014","url":null,"abstract":"<div>Textile-based supercapacitors (TSCs) are being used to meet the ever-increasing demand for mobile, safe, and convenient energy sources to power personal electronic devices. To that end, the smart textiles used in wearable technology need to be made from highly conductive yarns that are easily manufacturable. To date, synthetic- and cellulosic-based yarns have been exclusively used for the fabrication of TSCs, while other yarns have not been explored. Here, we used conductive protein-based yarns for TSCs and report on the use of wool coated with Ti3C2Tx MXene as a potential electrode material. To knit TSCs, wool and cotton yarns were coated with MXene flakes and their surfaces were characterized using Scanning Electron Microscopy (SEM) and X-Ray Photoelectron Spectroscopy (XPS). The electrochemical characterization was conducted to examine the performance of wool- and cotton-based MXene electrodes as substrates and determine charge storage and resistive behavior. These tests showed that wool TSCs exhibited more pseudocapacitive behavior, while cotton TSCs exhibited a wider current range. At a scan rate of 5 mV/s, cotton TSCs presented an areal capacitance of 823.9 mF/cm2 while this value for the wool TSCs was 284 mF/cm2. The performance of yarns was also tested under various mechanical deformation conditions and after washing in order to assess the stability of TSCs. This study indicates the potential of protein-based yarns as electrode substrates for integration of MXene to fabricate smart textile-based devices.</div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"3 ","pages":"Article 100014"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50204402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1