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Submillimeter-Long WS2 Nanotubes: The Pathway to Inorganic Buckypaper
Nano Letters ( IF 9.6 ) Pub Date : 2023-10-08 , DOI: 10.1021/acs.nanolett.3c02783
Vojtěch Kundrát 1, 2 , Rita Rosentsveig 1 , Kristýna Bukvišová 2, 3 , Daniel Citterberg 3 , Miroslav Kolíbal 3, 4 , Shachar Keren 5 , Iddo Pinkas 6 , Omer Yaffe 5 , Alla Zak 7 , Reshef Tenne 1
Nano Letters ( IF 9.6 ) Pub Date : 2023-10-08 , DOI: 10.1021/acs.nanolett.3c02783
Vojtěch Kundrát 1, 2 , Rita Rosentsveig 1 , Kristýna Bukvišová 2, 3 , Daniel Citterberg 3 , Miroslav Kolíbal 3, 4 , Shachar Keren 5 , Iddo Pinkas 6 , Omer Yaffe 5 , Alla Zak 7 , Reshef Tenne 1
Affiliation
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WS2 nanotubes present many new technologies under development, including reinforced biocompatible polymers, membranes, photovoltaic-based memories, ferroelectric devices, etc. These technologies depend on the aspect ratio (length/diameter) of the nanotubes, which was limited to 100 or so. A new synthetic technique is presented, resulting in WS2 nanotubes a few hundred micrometers long and diameters below 50 nm (aspect ratios of 2000–5000) in high yields. Preliminary investigation into the mechanistic aspects of the two-step synthesis reveals that W5O14 nanowhisker intermediates are formed in the first step of the reaction instead of the ubiquitous W18O49 nanowhiskers used in the previous syntheses. The electrical and photoluminescence properties of the long nanotubes were studied. WS2 nanotube-based paper-like material was prepared via a wet-laying process, which could not be realized with the 10 μm long WS2 nanotubes. Ultrafiltration of gold nanoparticles using the nanotube-paper membrane was demonstrated.
中文翻译：
亚毫米长 WS2 纳米管：无机巴基纸之路
WS 2纳米管代表了许多正在开发的新技术，包括增强生物相容性聚合物、膜、光伏存储器、铁电器件等。这些技术取决于纳米管的长宽比（长度/直径），该长宽比限制在 100 左右。提出了一种新的合成技术，以高产率生产出数百微米长、直径低于 50 nm（长径比为 2000-5000）的WS 2纳米管。对两步合成机理的初步研究表明，在反应的第一步中形成了W 5 O 14纳米晶须中间体，而不是先前合成中使用的普遍存在的W 18 O 49纳米晶须。研究了长纳米管的电学和光致发光性质。WS 2纳米管基纸状材料是通过湿法成网工艺制备的，这是10μm长的WS 2纳米管无法实现的。演示了使用纳米管纸膜对金纳米颗粒进行超滤。
更新日期：2023-10-08
中文翻译：
亚毫米长 WS2 纳米管：无机巴基纸之路
WS 2纳米管代表了许多正在开发的新技术，包括增强生物相容性聚合物、膜、光伏存储器、铁电器件等。这些技术取决于纳米管的长宽比（长度/直径），该长宽比限制在 100 左右。提出了一种新的合成技术，以高产率生产出数百微米长、直径低于 50 nm（长径比为 2000-5000）的WS 2纳米管。对两步合成机理的初步研究表明，在反应的第一步中形成了W 5 O 14纳米晶须中间体，而不是先前合成中使用的普遍存在的W 18 O 49纳米晶须。研究了长纳米管的电学和光致发光性质。WS 2纳米管基纸状材料是通过湿法成网工艺制备的，这是10μm长的WS 2纳米管无法实现的。演示了使用纳米管纸膜对金纳米颗粒进行超滤。
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