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6566篇 您的检索式:期刊名="Nano Research"
    题名 作者 年代 出处 被引量
1The photoluminescence mechanism in carbon dots (graphene quantum dots, carbon nanodots, and polymer dots): Current state and future perspective显示文摘目前,光致发光(PL ) 的实际机制荧光灯碳点(CD ) 仍然是在研究人员之中的开的争论。因为 CD 的变化,为这些种碳材料总结 PL 机制是高度重要的;那么做能指导有效合成线路和新奇应用程序的开发。这评论将集中于 CD 的 PL 机制。三种类型荧光灯 CD 被包含:graphene 量点(GQD ) ,碳 nanodots (CND ) ,和聚合物点(PD ) 。四合理 PL 机制被证实了:被碳核心决定的量监禁效果或结合的 -domains, ;表面状态,它由碳脊梁和连接的化学的组的杂交坚定;分子状态,它完全坚定由荧光灯分子在 CD 的表面或内部上连接了;并且提高交叉连接的排放(C ) 效果。为 CD 给一篇彻底的摘要,范畴和合成线路,以及化学 / 物理的性质,简短预先被介绍。Shoujun Zhu Yubin Song Xiaohuan Zhao Jieren Shao Junhu Zhang Bai Yang 2015Nano Research2015,8,2:120
2Nano-Graphene Oxide for Cellular Imaging and Drug Delivery显示文摘Two-dimensional graphene offers interesting electronic,thermal,and mechanical properties that are currently being explored for advanced electronics,membranes,and composites.Here we synthesize and explore the biological applications of nano-graphene oxide(NGO),i.e.,single-layer graphene oxide sheets down to a few nanometers in lateral width.We develop functionalization chemistry in order to impart solubility and compatibility of NGO in biological environments.We obtain size separated pegylated NGO sheets that are soluble in buffers and serum without agglomeration.The NGO sheets are found to be photoluminescent in the visible and infrared regions.The intrinsic photoluminescence(PL)of NGO is used for live cell imaging in the near-infrared(NIR)with little background.We found that simple physisorption viaπ-stacking can be used for loading doxorubicin,a widely used cancer drug onto NGO functionalized with antibody for selective killing of cancer cells in vitro.Owing to its small size,intrinsic optical properties,large specifi c surface area,low cost,and useful non-covalent interactions with aromatic drug molecules,NGO is a promising new material for biological and medical applications.Xiaoming Sun Zhuang Liu Kevin Welsher Joshua Tucker Robinson Andrew Goodwin Sasa Zaric Hongjie Dai 2008Nano Research2008,1,3:118
3A mini review of NiFe-based materials as highly active oxygen evolution reaction electrocatalysts显示文摘当重要反应在水切开和可充电的金属空气电池包含了,氧进化反应(OER ) 电解为干净精力产生和有效精力存储吸引了增加的注意。镍 / 铁(NiFe ) 基于混合物自从最后世纪,和更新的兴趣在为更好的活动和稳定性开发先进基于 NiFe 的材料上在最近的年里被见证,作为活跃 OER 催化剂被知道了。在这评论,我们在场基于 NiFe 的 OER electrocatalysts 上的早发现和最近的进步以化学性质,合成方法论和催化表演。基于 NiFe 的混合物的每个班的优点和劣势被总结,包括 NiFe 合金, electrodeposited 电影和分层的双氢氧化物 nanoplates。基于 NiFe 的混合物的活跃阶段的一些机械学的研究被介绍并且讨论了给卓见进活跃催化地点的性质,它能便于进一步改善的 NiFe 基于的 OER electrocatalysts。最后,为 OER 的基于 NiFe 的混合物的一些应用程序被描述,包括与有在 1.5 V 和高效下面的电压的一节单个 AAA 电池操作可充电的 Zn 空气电池的 electrolyzer 的开发。Ming Gong Hongjie Dai 2015Nano Research2015,8,1:77
4Metal organic frameworks derived single atom catalysts for electrocatalytic energy conversion显示文摘The development of efficient and cost-effective catalysts to catalyze a wide variety of electrochemical reactions is key to realize the large-scale applicati on of ren ewable and clean en ergy tech no logies.Owing to the maximum atom-utilization efficie ncy and unique electronic and geometric structures,single atom catalysts(SACs)have exhibited superior performance in various catalytic systems.Recently,assembled from the function alized orga nic lin kers and metal no des,metal-organic frameworks(MOFs)with ultrafi ne porosity have received treme ndous attention as precursors or self-sacrificing templates for preparing porous SACs.Here,the recent advances toward the synthesis strategies for using MOF precursors/templates to con struct SACs are systematically summarized with special emphasis on the types of central metal sites.The electrochemical applications of these recently emerged MOF-derived SACs for various energy-conversion processes,such as oxygen reduction/evolution reaction(ORR/OER),hydrogen evolution reaction(HER),and CO2 reduction reaction(CO2RR),are also discussed and reviewed.Fin ally,the curre nt challe nges and prospects regardi ng the developme nt of MOF-derived SACs are proposed.Tingting Sun Lianbin Xu Dingsheng Wang Yadong Li 2019Nano Research2019,12,9:63
5Modulating the local coordination environment of single-atom catalysts for enhanced catalytic performance显示文摘The local coordination environment of catalysts has been investigated ftor an extended period to obtain enhanced catalytic performance.Especially with the advancement of single-atom catalysts(SACs),research on the coordination environment has been advanced to the atomic level.The surrounding coordination atoms of central metal atoms play important roles in their catalytic activity,selectivity and stability.In recent years,remarkable improvements of the catalytic performance of SACs have been achieved by the tailoring of coordination atoms,coordination numbers and second-or higher-coordination shells,which provided new opportunities for the further development of SACs.In this review,the characterization of coordination environment,tailoring of the local coordination environment,and their related adjustable catalytic performance will be discussed.We hope this review will provide new insights on further research of SACs.Xinyuan Li Hongpan Rong Jiatao Zhang Dingsheng Wang Yadong Li 2020Nano Research2020,13,7:70
6Raman Spectroscopy and Imaging of Graphene显示文摘Graphene has many unique properties that make it an ideal material for fundamental studies as well as for potential applications.Here we review recent results on the Raman spectroscopy and imaging of graphene.We show that Raman spectroscopy and imaging can be used as a quick and unambiguous method to determine the number of graphene layers.The strong Raman signal of single layer graphene compared to graphite is explained by an interference enhancement model.We have also studied the effect of substrates,the top layer deposition,the annealing process,as well as folding(stacking order)on the physical and electronic properties of graphene.Finally,Raman spectroscopy of epitaxial graphene grown on a SiC substrate is presented and strong compressive strain on epitaxial graphene is observed.The results presented here are highly relevant to the application of graphene in nano-electronic devices and help in developing a better understanding of the physical and electronic properties of graphene.Zhenhua Ni Yingying Wang Ting Yu Zexiang Shen 2008Nano Research2008,1,4:51
7TiO_(2) Nanocrystals Grown on Graphene as Advanced Photocatalytic Hybrid Materials显示文摘A graphene/TiO_(2) nanocrystals hybrid has been successfully prepared by directly growing TiO_(2) nanocrystals on graphene oxide(GO)sheets.The direct growth of the nanocrystals on GO sheets was achieved by a two-step method,in which TiO_(2) was first coated on GO sheets by hydrolysis and crystallized into anatase nanocrystals by hydrothermal treatment in the second step.Slow hydrolysis induced by the use of EtOH/H2O mixed solvent and addition of H2SO4 facilitates the selective growth of TiO_(2) on GO and suppresses growth of free TiO_(2) in solution.The method offers easy access to the GO/TiO_(2) nanocrystals hybrid with a uniform coating and strong interactions between TiO_(2) and the underlying GO sheets.The strong coupling gives advanced hybrid materials with various applications including photocatalysis.The prepared graphene/TiO_(2) nanocrystals hybrid has superior photocatalytic activity to other TiO_(2) materials in the degradation of rhodamine B,showing an impressive three-fold photocatalytic enhancement over P25.It is expected that the hybrid material could also be promising for various other applications including lithium ion batteries,where strong electrical coupling to TiO_(2) nanoparticles is essential.Yongye Liang Hailiang Wang Hernan Sanchez Casalongue Zhuo Chen Hongjie Dai 2010Nano Research2010,3,10:57
8Magnetite/Reduced Graphene Oxide Nanocomposites: One Step Solvothermal Synthesis and Use as a Novel Platform for Removal of Dye Pollutants显示文摘简单的用无毒、划算的先锋的步骤 solvothermal 策略被开发了准备磁铁矿 / 还原剂 graphene 氧化物(MRGO ) 为染料污染物质的移动的 nanocomposites。利用 graphene 和磁性的 nanoparticles 的联合好处,这些 MRGO nanocomposites 展览优秀移动效率(超过 91% 为玫瑰精 B 并且超过 94% 为孔雀石绿色) 并且从由一个外部磁场的水的答案的快速的分离。有趣地, MRGO composites 的性能强烈依赖于两 Fe3O4 和 pH 值装载。另外,这新吸附物的吸附行为与 Freundlich 等温线和 pseudo-second-order 适合很好运动模型。在进一步的应用程序,真实 samplesincluding 工业废物水和湖 waterhave 使用 MRGO composites 对待。所有结果证明 MRGO composites 是为染料污染物质的移动的有效吸附物并且能因此为染料净化提供一个新平台。Hongmei Sun Linyuan Cao Lehui Lu 2011Nano Research2011,4,6:42
9One-Dimensional ZnO Nanostructures: Solution Growth and Functional Properties显示文摘一个维(1D ) ZnO nanostructures 不仅为他们的显著化学、物理的性质,而且为他们的现在和将来的多样的工艺的应用在最后十年强烈地并且广泛地被学习了。这篇文章给在 1D ZnO 的上下文以内被使 nanostructures 经由湿化学方法综合了的进步的全面概述。我们将盖住合成方法论和相应生长机制,不同结构,做并且 alloying,底层上的控制位置的生长,并且最后,他们是的功能的性质催化剂,恐水病的表面,传感器,并且在 nanoelectronic,光, optoelectronic,和精力收获设备。Sheng Xu Zhong Lin Wang 2011Nano Research2011,4,11:49
10Transition-metal doped edge sites in vertically aligned MoS2 catalysts for enhanced hydrogen evolution显示文摘为象氢进化反应那样的电气化学的反应的高度活跃、便宜的催化剂(她的) 为有效精力的发展是关键的变换和存储技术。理论模拟在揭示在材料和他们的催化活动的电子结构之间的关联是有帮助的,并且指导改进催化剂的预言和发展。然而,在精确地设计需要的原子地点的困难在做在试验性、理论的结果之间的直接比较导致挑战。在瞬间 < 潜水艇 class= “ a-plus-plus ” > 2 , 而薹是惰性的,瞬间边被表明了为她活跃。用一条计算基于描述符的途径,我们预言由合并转变金属原子(Fe,公司, Ni,或 Cu ) ,薹地点应该也成为她活跃。垂直地站的、终止边的瞬间 < 潜水艇 class= “ a-plus-plus ” > 2 nanofilms 为验证这些预言提供一个明确的模型系统。转变金属做了瞬间 < 潜水艇 class= “ a-plus-plus ” > 2 nanofilms 表演交换水流密度由的增加至少双重,与理论计算一致。这个工作为由把倡导者合并到特别原子地点改进电气化学的催化剂,并且为使用明确的系统以便理解提升效果的起源开创进一步的机会。Haotian Wang Charlie Tsai Desheng Kong Karen Chan Frank Abild-Pedersen Jens K. Norskov Yi Cui 2015Nano Research2015,8,2:41
11Single-atom catalysis enables long-life, high-energy lithium-sulfur batteries显示文摘With high energy density and low material cost,lithium sulfur batteries(LSBs)emerge quite expeditiously as a fascinating energy storage system over the past decade.Broad applications of LSBs ranging from electric vehicles to stationary grid storage seem rather bright in recent literatures.However,there still exist many pressing challenges to be addressed because we do not yet fully understand and control the electrode-electrolyte interface chemistries during battery operation,such as polysulide shuttling and poor utilization of active sulfur.Single-atom catalysts(SACs)pave new possibilities of tackling the tough issues due to their decent applicability in the atomic-level identification of structure-activity relationships and reaction mechanism,as well as their structural tunability with atomic precision.This review comprehensively summarizes the very recent advances in utilization of highly active SACs for LSBs by stating and discussing the related publications,which involves catalyst synthesis routes,battery pertormance,catalytic mechanisms,optimization strategies,and promises to achieve long-lite,high-energy LSBs.We see that endeavors to employ SACs to modify sulfur cathode have allowed efficient polysulfide conversion and confinement,leading to the minimization of shuttle effect.Parallel efforts are being devoted to extending the scope of SACs to cell separator and lithium metal anode in order to unlock the full potential of LSBs.We also obtain mechanistic insights into battery chemistries and nature of SACs in their strong interactions with polysulfides through advanced in situ characterizations documented.Overall,acceleration in the development of LSBs by introducing SACs is noticeable,and this cutting edge needs more attentions to further promoting the design of better LSBs.Zechao Zhuang Qi Kang Dingsheng Wang Yadong Li 2020Nano Research2020,13,7:46
12Carbon Nanotubes in Biology and Medicine:In vitro and in vivo Detection,Imaging and Drug Delivery显示文摘Carbon nanotubes exhibit many unique intrinsic physical and chemical properties and have been intensively explored for biological and biomedical applications in the past few years.In this comprehensive review,we summarize the main results from our and other groups in this field and clarify that surface functionalization is critical to the behavior of carbon nanotubes in biological systems.Ultrasensitive detection of biological species with carbon nanotubes can be realized after surface passivation to inhibit the non-specific binding of biomolecules on the hydrophobic nanotube surface.Electrical nanosensors based on nanotubes provide a label-free approach to biological detection.Surface-enhanced Raman spectroscopy of carbon nanotubes opens up a method of protein microarray with detection sensitivity down to 1 fmol/L.In vitro and in vivo toxicity studies reveal that highly water soluble and serum stable nanotubes are biocompatible,nontoxic,and potentially useful for biomedical applications.In vivo biodistributions vary with the functionalization and possibly also size of nanotubes,with a tendency to accumulate in the reticuloendothelial system(RES),including the liver and spleen,after intravenous administration.If well functionalized,nanotubes may be excreted mainly through the biliary pathway in feces.Carbon nanotube-based drug delivery has shown promise in various In vitro and in vivo experiments including delivery of small interfering RNA(siRNA),paclitaxel and doxorubicin.Moreover,single-walled carbon nanotubes with various interesting intrinsic optical properties have been used as novel photoluminescence,Raman,and photoacoustic contrast agents for imaging of cells and animals.Further multidisciplinary explorations in this field may bring new opportunities in the realm of biomedicine.Zhuang Liu Scott Tabakman Kevin Welsher Hongjie Dai 2009Nano Research2009,2,2:50
13Advanced Asymmetrical Supercapacitors Based on Graphene Hybrid Materials显示文摘Supercapacitors 在水的答案操作是有能力的高骑车稳定性并且快收费并且排出的低费用精力存储设备,但是通常受不了低精力密度。这里,我们种 Ni (哦) 高质量的 graphene 表上的 2 nanoplates 和 RuO2 nanoparticles 以便最大化这些材料的特定的电容。我们然后在 Ni 上面配对(哦) 有一个 RuO2/graphene 电极到的 2/graphene 电极负担得起高效有在 1.5 V 的电压在水的答案操作的高精力和功率密度的不均匀的 supercapacitor。不均匀的 supercapacitor 基于 RuO2 碳或 Ni 比对称的 RuO2-RuO2 supercapacitors 或不均匀的 supercapacitors 展出显著地更高的精力密度(哦)2 碳电极对。48 W 甠瑬慲散瑮楲畦慧楴湯的高精力密度?Hailiang Wang Yongye Liang Tissaphern Mirfakhrai Zhuo Chen Hernan Sanchez Casalongue Hongjie Dai 2011Nano Research2011,4,8:37
14Fabrication of Silver Nanowire Transparent Electrodes at Room Temperature显示文摘poly 绝缘包围的银 nanowires (AgNWs )(vinylpyrrolidone ) 被一个 polyol 过程综合了并且采用了同样透明的电极。AgNW 透明电极能被热处理在大约 200 点制作吗??Takehiro Tokuno Masaya Nogi Makoto Karakawa Jinting Jiu Thi Thi Nge Yoshio Aso Katsuaki Suganuma 2011Nano Research2011,4,12:38
15Plasma-assisted fabrication of monolayer phosphorene and its Raman characterization显示文摘Wanglin Lu Haiyan Nan Jinhua Hong Yuming Chen Chen Zhu Zheng Liang Xiangyang Ma Zhenhua Ni Chuanhong Jin Ze Zhang 2014Nano Research2014,7,6:36
16A mini review on nickel-based electrocatalysts for alkaline hydrogen evolution reaction显示文摘氢来源的高 gravimetric 精力密度,地球丰富,和环境友好作为石块燃料的一种干净选择启发了氢燃料的利用。氢进化反应(她的) ,一半切开的水的反应,对纯 H 2 燃料的便宜生产关键,但是要求 electrocatalysts 的使用帮助反应动力学。由于便宜的氧进化反应(OER ) 的可获得性为在碱的媒介和在酸的媒介的便宜 OER 催化剂的缺乏的相反的电极的催化剂,研究人员们集中了于与高活动和稳定性在碱的媒介开发她的催化剂。当,镍是著名的一她的催化剂和连续努力被承担了作为碱的 electrolyzers 改进基于 Ni 的催化剂。在这评论,我们在 Ni 表面上总结她的活动和机制的更早的研究,与在用各种各样的现代技术的基于 Ni 的催化剂的优化的最近的进步一起。最近发展了基于 Ni 她的催化剂根据他们的化学性质被分类,并且象每个范畴的限制一样的优点被讨论。在所有基于 Ni 的催化剂之中,基于 Ni 的合金和基于 Ni 的异种结构由于经由附近的 synergistic 调整他们的表面吸附性质展出最有希望的 electrocatalytic 活动和稳定性元素或领域。最后,选择了应用程序发展基于 Ni 她的催化剂被加亮例如切开的水, chloralkali 过程,和微生物引起的电解房间。Ming Gong Di-Yan Wang Chia-Chun Chen Bing-Joe Hwang Hongjie Dai 2016Nano Research2016,9,1:37
17Confinedly implanted NiFe2O4-rGO: Cluster tailoring and highly tunable electromagnetic properties for selective-frequency microwave absorption显示文摘Yanlan Zhang Xixi Wang Maosheng Cao 2018Nano Research2018,11,3:36
18Single-atom site catalysts for environmental catalysis显示文摘In recent decades,the environmental protection and long-term sustainability have become the focus of attention due to the increasing pollution generated by the intense industrialization.To overcome these issues,environmental catalysis has increasingly been used to solve the negative impact of pollutants emission on the global environment and human health.Supported platinum-metal-group(PGM)materials are commonly utilized as the state-of-the-art catalysts to eliminate gaseous pollutants but large quantities of PGMs are required.By comparison,single-atom site catalysts(SACs)have attracted much attention in catalysis owing to their 100%atom efficiency and unique catalytic performances towards various reactions.Over the past decade,we have witnessed burgeoning interests of SACs in heterogeneous catalysis.However,to the best of our knowledge,the systematic summary and analysis of SACs in catalytic elimination of environmental pollutants has not yet been reported.In this paper,we summarize and discuss the environmental catalysis applications of SACs.Particular focus was paid to automotive and stationary emission control,including model reaction(CO oxidation,NO reduction and hydrocarbon oxidation),overall reaction(three-way catalytic and diesel oxidation reaction),elimination of volatile organic compounds(formaldehyde,benzene,and toluene),and removal/decomposition of other pollutants(Hg0 and SO3).Perspectives related to further challenges,directions and design strategies of single-atom site catalysts in environmental catalysis were also provided.Ningqiang Zhang Chenliang Ye Han Yan Lingcong Li Hong He Dingsheng Wang Yadong Li 2020Nano Research2020,13,12:38
19Uniform,Highly Conductive,and Patterned Transparent Films of a Percolating Silver Nanowire Network on Rigid and Flexible Substrates Using a Dry Transfer Technique显示文摘Silver nanowire films are promising alternatives to tin-doped indium oxide(ITO)films as transparent conductive electrodes.In this paper,we report the use of vacuum filtration and a polydimethylsiloxane(PDMS)-assisted transfer printing technique to fabricate silver nanowire films on both rigid and flexible substrates,bringing advantages such as the capability of patterned transfer,the best performance among various ITO alternatives(10Ω/sq at 85%transparency),and good adhesion to the underlying substrate,thus eliminating the previously reported adhesion problem.In addition,our method also allows the preparation of high quality patterned films of silver nanowires with different line widths and shapes in a matter of few minutes,making it a scalable process.Furthermore,use of an anodized aluminum oxide(AAO)membrane in the transfer process allows annealing of nanowire films at moderately high temperature to obtain films with extremely high conductivity and good transparency.Using this transfer technique,we obtained silver nanowire films on a flexible polyethylene terephthalate(PET)substrate with a transparency of 85%,a sheet resistance of 10Ω/sq,with good mechanical flexibility.Detailed analysis revealed that the Ag nanowire network exhibits two-dimensional percolation behavior with good agreement between experimentally observed and theoretically predicted values of critical volume。Anuj R.Madaria Akshay Kumar Fumiaki N.Ishikawa Chongwu Zhou 2010Nano Research2010,3,8:39
20Graphene-Based Conducting Inks for Direct Inkjet Printing of Flexible Conductive Patterns and Their Applications in Electric Circuits and Chemical Sensors显示文摘打印过程的一系列 inkjet 用基于 graphene 的墨水被学习了。在优化条件下面,使用水溶性的单人赛分层的 graphene 氧化物(去)并且很少分层的 graphene 氧化物( FGO ),各种各样的高图象质量模式能在多样的灵活底层上被打印包括纸, poly (乙烯 terephthalate )(宠物)并且 polyimide ( PI ),与打印技术的简单、便宜的 inkjet 。在塑料底层上打印的基于 graphene 的模式在热减小以后表明了高电的传导性,并且更重要地,他们在严重弯曲周期上保留了一样的传导性。因此,灵活电的电路和一个氢过氧化物化学药品传感器被制作并且显示出优秀表演,演示打印用 graphene 墨水的技术的这简单、实际的 inkjet 的应用程序。结果显示出那 graphene 材料 -- 它能容易在大规模上被生产并且为灵活、便宜的基于 graphene 的电子设备的方便制造拥有突出的电子性质有伟人潜力,由使用打印技术的简单 inkjet。Lu Huang Yi Huang diajie Liang Xiangjian Wan Yongsheng Chen 2011Nano Research2011,4,7:31
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