Oriented Multiwalled Organic-Co(OH)(2) Nanotubes for Energy Storage

Lau Garrett C.; Sather Nicholas A.; Sai Hiroaki; Waring Elizabeth M.; Deiss-Yehiely Elad; Barreda Leonel; Beeman Emily A.; Palmer Liam C.; Stupp Samuel I.

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Oriented Multiwalled Organic-Co(OH)(2) Nanotubes for Energy Storage

机译：定向多壁有机Co（OH）（2）纳米管用于储能

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In energy storage materials, large surface areas and oriented structures are key architecture design features for improving performance through enhanced electrolyte access and efficient electron conduction pathways. Layered hydroxides provide a tunable materials platform with opportunities for achieving such nanostructures via bottom-up syntheses. These nanostructures, however, can degrade in the presence of the alkaline electrolytes required for their redox-based energy storage. A layered Co(OH)(2)-organic hybrid material that forms a hierarchical structure consisting of micrometer-long, 30 nm diameter tubes with concentric curved layers of Co(OH)(2) and 1-pyrenebutyric acid is reported. The nanotubular structure offers high surface area as well as macroscopic orientation perpendicular to the substrate for efficient electron transfer. Using a comparison with flat films of the same composition, it is demonstrated that the superior performance of the nanotubular films is the result of a large accessible surface area for redox activity. It is found that the organic molecules used to template nanotubular growth also impart stability to the hybrid when present in the alkaline environments necessary for redox function.

机译：在储能材料中，大表面积和定向结构是关键体系结构设计特征，可通过增加电解质通道和有效的电子传导途径来提高性能。层状氢氧化物为可调谐材料平台提供了通过自下而上的合成方法实现此类纳米结构的机会。然而，这些纳米结构在存在其基于氧化还原的能量存储所需要的碱性电解质的情况下会降解。报道了一种分层的Co（OH）（2）-有机杂化材料，该材料形成了由微米级，直径30 nm的管组成的分层结构，该管具有Co（OH）（2）和1-pyrenebutyric acid的同心弯曲层。纳米管结构可提供高表面积以及垂直于基材的宏观取向，从而实现有效的电子转移。通过与具有相同组成的平面膜的比较，证明了纳米管膜的优异性能是氧化还原活性的大可及表面积的结果。已经发现，当存在于氧化还原功能所必需的碱性环境中时，用于模板化纳米管生长的有机分子也赋予杂化物以稳定性。

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来源
《Advanced Functional Materials》 |2018年第3期|1702320.1-1702320.10|共10页
作者
Lau Garrett C.; Sather Nicholas A.; Sai Hiroaki; Waring Elizabeth M.; Deiss-Yehiely Elad; Barreda Leonel; Beeman Emily A.; Palmer Liam C.; Stupp Samuel I.;
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作者单位

Northwestern Univ, Dept Mat Sci & Engn, 2220 Campus Dr, Evanston, IL 60208 USA;

Northwestern Univ, Dept Mat Sci & Engn, 2220 Campus Dr, Evanston, IL 60208 USA;

Northwestern Univ, Simpson Querrey Inst BioNanotechnol, 303 East Super St,11th Floor, Chicago, IL 60611 USA;

Northwestern Univ, Dept Chem & Biol Engn, 2145 Sheridan Rd, Evanston, IL 60208 USA;

Northwestern Univ, Dept Mat Sci & Engn, 2220 Campus Dr, Evanston, IL 60208 USA;

Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA;

Univ Calif Davis, Dept Mat Sci & Engn, 1 Shields Ave, Davis, CA 95616 USA;

Northwestern Univ, Simpson Querrey Inst BioNanotechnol, 303 East Super St,11th Floor, Chicago, IL 60611 USA|Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA;

Northwestern Univ, Dept Mat Sci & Engn, 2220 Campus Dr, Evanston, IL 60208 USA|Northwestern Univ, Simpson Querrey Inst BioNanotechnol, 303 East Super St,11th Floor, Chicago, IL 60611 USA|Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA|Northwestern Univ, Dept Med, 251 East Huron St Galter Suite 3-150, Chicago, IL 60611 USA|Northwestern Univ, Dept Biomed Engn, 2145 Sheridan Rd, Evanston, IL 60208 USA;

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正文语种 eng
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关键词
cobalt hydroxide; energy storage; hierarchical structures; hybrid materials;

机译：氢氧化钴;储能;分层结构;混合材料;

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机译：能量存储：取向多壁有机CO（OH）2纳米管，用于储能（ADV。Funct。Matter。3/2018）

Oriented Multiwalled Organic-Co(OH)(2) Nanotubes for Energy Storage

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