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RSC主编推荐:纳米领域精彩文章快览(免费阅读原文)

英国皇家化学会(RSC)是一个超过175年历史的面向全球化学家的非营利会员制机构,旗下拥有44种期刊,其中很多在化学领域有很高影响力。为了进一步帮助广大读者追踪科技前沿热点,X-MOL团队与英国皇家化学会合作,推出英国皇家化学会期刊主编推荐的精彩文章快览,本期文章属“纳米领域”,英文点评来自英国皇家化学会期刊的主编。如果大家对我们的解读有更多的补充和点评,欢迎在文末写评论发表您的高见!


Chemical Science (IF: 9.063)



1. Triperyleno[3,3,3]propellane triimides: achieving a new generation of quasi-D3h symmetric nanostructures in organic electronics

Chem. Sci., 2019, Advance Article

DOI: 10.1039/C9SC00849G



Researchers from the Beijing University of Chemical Technology and the University of Kentucky, USA, present a new 3D symmetric rylene imide nanostructure that has high solubility, a large pi surface, electron accepting ability and a variety of active sites. This promising new material has the potential to be used in OLEDs.


北京化工大学和美国肯塔基大学的研究人员展示了一种新的三维对称型萘嵌苯酰亚胺纳米结构,它具有高溶解度、大的π表面、电子接受能力和多种活性位点。这种有前景的新材料有可能用于OLEDs。


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2. Enhancing singlet oxygen generation in semiconducting polymer nanoparticles through fluorescence resonance energy transfer for tumor treatment

Chem. Sci., 2019, Advance Article

DOI: 10.1039/C8SC05501G



Scientists at NUPT, Nanjing and NPU, Xi'an, have reported a new type of dual-emissive semiconducting polymer nanoparticle containing fluorescent BODIPY derivatives and near-infrared phosphorescent iridium (III) complexes. The high singlet oxygen yield of 0.97 is among the best reported for photosensitizers and they test one of the complexes for use in photodynamic therapy both in vitro and in vivo.


南京邮电大学和西北工业大学的科学家们报道了一种含有荧光BODIPY衍生物和近红外磷光铱(III)配合物的新型双发射半导体聚合物纳米粒子,具有高达0.97的单线态氧产率,是目前已报道的最佳光敏剂之一。他们还将其中一种用于光动力疗法的体外和体内测试。


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Nanoscale Horizons (IF: 9.391)



1. Suppressing defect states in CsPbBr3 perovskite via magnesium substitution for efficient all-inorganic light-emitting diodes

Nanoscale Horiz., 2019, Advance Article

DOI: 10.1039/c9nh00066f



Perovskite light-emitting diodes are one of the most promising candidates for next-generation display but the toxicity of lead sets an obstacle for practical applications. Previous studies have demonstrated that Sn can be used to replace Pb; however, the easy oxidation of Sn2+ to Sn4+ poses threats to the efficiency and stability of the resulting optoelectronic devices. In this work, the authors demonstrate that by partially substituting Pb with Mg, defect states in all-inorganic CsPbBr3 perovskite films are dramatically reduced, leading to efficient and stable devices. This Mg-substitution strategy enables us not only to suppress the non-radiative recombination in perovskite films to improve the performance of PeLEDs but also to realize eco-friendly optoelectronic devices.


钙钛矿发光二极管是下一代显示器中最有前景的候选者之一,但铅的毒性阻碍了其实际应用。已有研究表明锡可以代替铅,然而,Sn2+极易氧化成Sn4+,这对于所制成的光电子器件的效率和稳定性构成了威胁。本文作者证明,用镁部分取代铅,在全无机CsPbBr3钙钛矿薄膜中的缺陷态显著降低,能够获得高效且稳定的器件。这种镁取代策略不仅可以抑制钙钛矿薄膜中的非辐射复合,从而改善钙钛矿发光二极管(PeLEDs)的性能,还可以制备出环保的光电子器件。


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2. MOF nanoleaves as new sacrificial templates for the fabrication of nanoporous Co–Nx/C electrocatalysts for oxygen reduction

Nanoscale Horiz., 2019, Advance Article

DOI: 10.1039/c9nh00095j



Recently, 3D zeolitic-imidazolate framework (ZIF) -derived electrocatalysts have shown great potential as electrocatalysts for the oxygen reduction reaction (ORR). However, their natural tendency to agglomerate limits the exposure of the active sites and significantly reduces their ORR performance. In this paper, the authors report a “shape-transforming via aqueous solution-mediated” method to rationally synthesize novel leaf-like ZIFs with similar morphological advantages as 2D MOFs. The developed strategy for synthesizing ZIF nanoleaves will have enormous potential for developing various novel transition metal-based electrocatalysts with highly mesoporous structure and highly accessible active sites to enhance the overall ORR performance and durability.


近期,三维沸石咪唑酯骨架(ZIF)衍生的电催化剂在氧还原反应(ORR)中表现出了巨大潜力。然而,它们自身的团聚趋势限制了活性位点的暴露并显著降低了它们的氧还原反应性能。本文作者报道了一种“通过水溶液介导的形状转化”方法,合理合成了与二维MOF具有相似形态学优势的新型叶片状ZIF。这一ZIF纳米叶片的先进合成策略具有巨大潜力,可用于开发具有高度介孔结构和暴露活性位点的多种多样新型基于过渡金属的电催化剂,提高氧还原反应的整体性能和耐久性。


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3. Nonmetallic plasmon induced 500-fold enhancement in the upconversion emission of the UCNPs/WO3−x hybrid

Nanoscale Horiz., 2019, Advance Article

DOI: 10.1039/c9nh00106a



Nonmetallic plasmonic materials with low-cost and abundant reserves have attracted much attention as potential substitutes for plasmonic noble metals. In this study, nonmetallic plasmonic WO3−x was used to substitute plasmonic metals for enhancing the upconversion luminescence (UCL) of upconversion nanoparticles (UCNPs). To the author’s surprise, over 500-fold selective enhancement at the 521 nm emission was achieved by the UCNPs/WO3−x hybrid, which is larger than those of many reported metallic nanostructures. It is demonstrated that such significant selective enhancement can be mainly ascribed to the plasmonic WO3−x induced intense electrical field and thermal effect. This work is expected to pave the way for further development of low-cost nonmetallic plasmonic materials.


低成本且储量丰富的非金属等离激元材料作为等离激元贵金属的潜在替代物而备受关注。在本项研究中,非金属等离激元材料WO3−x 用于代替等离激元金属,以增强上转换纳米粒子(UCNPs)的上转换发光(UCL)。出乎意料的是,UCNP/WO3−x混合物的521 nm发射得到了500多倍的选择性增强,高于报道的多数金属纳米结构。作者证明了这种显著的选择性增强主要归因于等离激元WO3−x 诱导的强电场和热效应。预计这项工作将为进一步开发低成本非金属等离激元材料指出新的方向。


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