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Interconversion between nanoribbons and nanospheres mediated by detachable ‘invisibility suit’
Materials Today Nano ( IF 10.3 ) Pub Date : 2019-11-26 , DOI: 10.1016/j.mtnano.2019.100068
Y.-H. Luo , X.-T. He , C. Wang , J.-Y. Wang , Z.-Y. Zheng , J. Zhao , L.-H. Guo , L.-H. Zhai , B.-W. Sun

Taming the ultrathin nanomaterials with the desired stability and functionality is one of the challenges of chemistry and materials science. Developing a detachable smart ’invisibility suit’ may represent an attractive strategy for coping with this dilemma. Here, a protection-deprotection strategy for ultrathin nanomaterials of hydrogen-bonded organic frameworks (HOFs), by putting on and taking off a detachable ’invisibility suit,’ is reported. Upon wearing the ’invisibility suit,’ the ultrathin nanoribbons with high crystallinity can fold into ’sturdy’ nanospheres, the latter featured with amorphous character, stimuli inertia, and excellent extreme condition resistance, achieving the challenging goal of ’stealth.’ In addition, the superior water affinity, sensitive selectivity, ultrahigh water adsorption capacity, and promising energy-saving activation steps for the ’stealth’ nanospheres have been demonstrated, suggesting a promising candidate for the real-world application as an effective dehydrator. More importantly, taking off the ’invisibility suit’ leads to the release of the initial nanoribbons, which features the promising thermal and NIR light-triggered photoluminescence and photocatalysis. These results have provided an inter-conversion cycle between nanoribbons and nanospheres, which are expected to significantly promote the demand-oriented storage, transportation, and practical application of ultrathin nanomaterials.



中文翻译:

可分离的“隐形服”介导的纳米带和纳米球之间的相互转化

使超薄纳米材料具有所需的稳定性和功能性是化学和材料科学的挑战之一。开发可脱卸的智能“隐形服”可能是应对这种困境的一种有吸引力的策略。在此,报道了通过穿上和脱下可脱卸的“隐形服”,对氢键有机骨架(HOF)的超薄纳米材料进行保护-脱保护的策略。穿着“隐形服”后,具有高结晶度的超薄纳米带可以折叠成“坚固”的纳米球,后者具有无定形特征,刺激惯性和出色的极端条件抵抗力,从而实现了“隐身”的挑战性目标。此外,卓越的水亲和力,灵敏的选择性,超高的吸水能力,已经证明了“隐身”纳米球的节能活化步骤是可行的,这表明它在现实世界中作为有效的脱水剂具有广阔的应用前景。更重要的是,脱掉“隐形服”可以释放出最初的纳米带,其特征在于有希望的热和近红外激发光致发光和光催化作用。这些结果提供了纳米带和纳米球之间的相互转换循环,有望显着促进以需求为导向的存储,运输和超薄纳米材料的实际应用。脱掉“隐形服”可以释放出最初的纳米带,其具有可观的热和近红外触发光致发光和光催化作用。这些结果提供了纳米带和纳米球之间的相互转换循环,有望显着促进以需求为导向的存储,运输和超薄纳米材料的实际应用。脱掉“隐形服”可以释放出最初的纳米带,其具有可观的热和近红外激发光触发的光致发光和光催化作用。这些结果提供了纳米带和纳米球之间的相互转换循环,有望显着促进以需求为导向的存储,运输和超薄纳米材料的实际应用。

更新日期:2019-11-26
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