Reversible transformation of hydrophobicity and hydrophilicity of aligned carbon nanotube arrays and buckypapers by dry processes

Wang, H. Z.; Huang, Zhongping; Cai, Qingjun; Kulkarni, Kavita; Chen, Chung‐Lung; Carnahan, David; Ren, Zhonghai

doi:10.1016/j.carbon.2009.10.041

Cited by 67 publications

(49 citation statements)

References 57 publications

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“…Ruthenium oxide nanoparticles were synthesized according to literature with a modified sol-gel method as described in the experimental section42. The as-grown GM foams are mildly treated with UV-generated ozone for 60 seconds to enhance the surface wettability, and this process has been verified to be a nondestructive process43. X-ray diffraction (XRD) measurements were performed to confirm the phase and purity of the RuO 2 nanoparticles.…”

Section: Resultsmentioning

confidence: 99%

Hydrous Ruthenium Oxide Nanoparticles Anchored to Graphene and Carbon Nanotube Hybrid Foam for Supercapacitors

Wang

Guo

Lee

et al. 2014

Sci Rep

473

291

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In real life applications, supercapacitors (SCs) often can only be used as part of a hybrid system together with other high energy storage devices due to their relatively lower energy density in comparison to other types of energy storage devices such as batteries and fuel cells. Increasing the energy density of SCs will have a huge impact on the development of future energy storage devices by broadening the area of application for SCs. Here, we report a simple and scalable way of preparing a three-dimensional (3D) sub-5 nm hydrous ruthenium oxide (RuO2) anchored graphene and CNT hybrid foam (RGM) architecture for high-performance supercapacitor electrodes. This RGM architecture demonstrates a novel graphene foam conformally covered with hybrid networks of RuO2 nanoparticles and anchored CNTs. SCs based on RGM show superior gravimetric and per-area capacitive performance (specific capacitance: 502.78 F g−1, areal capacitance: 1.11 F cm−2) which leads to an exceptionally high energy density of 39.28 Wh kg−1 and power density of 128.01 kW kg−1. The electrochemical stability, excellent capacitive performance, and the ease of preparation suggest this RGM system is promising for future energy storage applications.

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Section: Resultsmentioning

confidence: 99%

Hydrous Ruthenium Oxide Nanoparticles Anchored to Graphene and Carbon Nanotube Hybrid Foam for Supercapacitors

Wang

Guo

Lee

et al. 2014

Sci Rep

473

291

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“…the relative wettability of the samples by comparing the contact angles at an arbitrary time, as is commonly performed in the literature [72][73][74][75][76].…”

Section: Contact Angle Kinetics (Cak) Studymentioning

confidence: 99%

Wettability of colloid-imprinted carbons by contact angle kinetics and water vapor sorption measurements

Banham

Feng

et al. 2015

Carbon

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“…In this context, a key feature for many applications is to succeed in reversibly controlling the wettability of surfaces (i.e., the change from hydrophobic to hydrophilic and back). This has been attempted by the application of electric fields, heating, and light irradiation . The reversible light induced superhydrophobic–superhydrophylic transition of Ag@TiO 2 core@shell nanofibers (NFs) is a clear example of the possibilities offered by these structures to light tuning the water contact angle (WCA) of a nanostructured surface …”

Section: Introductionmentioning

confidence: 99%

Plasma Deposition of Superhydrophobic Ag@TiO₂ Core@shell Nanorods on Processable Substrates

Macías-Montero

Borrás

Romero‐Gómez

et al. 2013

Plasma Processes & Polymers

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---------This work reports the low temperature plasma formation of Ag@TiO 2 nanorods consisting of a silver core and an external shell of TiO 2 deposited on silver coated processable substrates.Layers of supported nanorods have been analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and time of flight secondary ion mass spectroscopy (TOF-SIMS). The analysis of the nanorods morphologies as a function of the preparation conditions has revealed that the effect of the plasma sheath, the high mobility of the silver and the incoming direction of the precursor moieties are key factors determining the morphology, dimensions and tilting orientation of the core@shell nanostructures. Post-annealing of the asprepared samples at 673 K induced the crystallization of the amorphous TiO 2 shell into the anatase phase. The as-grown amorphous and anatase Ag@TiO 2 NRs surfaces present a superhydrophobic behavior with water contact angles higher than 150º, that turn into superhydrophilic through a two-step kinetic by irradiation with UV light. This wetting behavior is discussed within the framework of the Wenzel and Cassie-Baxter models, a Supporting Information is available at Wiley Online Library or from the author. ((Other reference to the authors can also appear here, such as Author-One and Author-Two contributed equally to this work.)) -2 -including the effect of the water penetration in the inter-NR space during the light-mediated superhydrophobic-superhydrophilic transformation.

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Reversible transformation of hydrophobicity and hydrophilicity of aligned carbon nanotube arrays and buckypapers by dry processes

Cited by 67 publications

References 57 publications

Hydrous Ruthenium Oxide Nanoparticles Anchored to Graphene and Carbon Nanotube Hybrid Foam for Supercapacitors

Hydrous Ruthenium Oxide Nanoparticles Anchored to Graphene and Carbon Nanotube Hybrid Foam for Supercapacitors

Wettability of colloid-imprinted carbons by contact angle kinetics and water vapor sorption measurements

Plasma Deposition of Superhydrophobic Ag@TiO₂ Core@shell Nanorods on Processable Substrates

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Reversible transformation of hydrophobicity and hydrophilicity of aligned carbon nanotube arrays and buckypapers by dry processes

Cited by 67 publications

References 57 publications

Hydrous Ruthenium Oxide Nanoparticles Anchored to Graphene and Carbon Nanotube Hybrid Foam for Supercapacitors

Hydrous Ruthenium Oxide Nanoparticles Anchored to Graphene and Carbon Nanotube Hybrid Foam for Supercapacitors

Wettability of colloid-imprinted carbons by contact angle kinetics and water vapor sorption measurements

Plasma Deposition of Superhydrophobic Ag@TiO2 Core@shell Nanorods on Processable Substrates

Contact Info

Product

Resources

About

Plasma Deposition of Superhydrophobic Ag@TiO₂ Core@shell Nanorods on Processable Substrates