A TEM based study of the microstructure during room temperature and low temperature hydrogen storage cycling in MgH2 promoted by Nb–V

Tan, Xuehai; Zahiri, Beniamin; Holt, Chris; Kubis, Alan; Mitlin, David

doi:10.1016/j.actamat.2012.06.009

Cited by 50 publications

(22 citation statements)

References 69 publications

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“…Material Characterization : The morphology of the as‐deposited and postcycled samples was investigated using FEI Helios NanoLab 650 SEM. The size distribution of the secondary dendritic arms from the SEM image was obtained using image analysis reported elsewhere . The width at half maximum height of at least 200 features was used to generate the distribution histogram (Figure c).…”

Section: Methodsmentioning

confidence: 99%

Active Control over the Wettability from Superhydrophobic to Superhydrophilic by Electrochemically Altering the Oxidation State in a Low Voltage Range

Sow

Kung

Mérida

2017

Adv Materials Inter

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Fast and reversible active control over the surface wettability of electrodeposited copper is achieved through electrochemical manipulation of the oxidation state. The switchable wettability described in this work allows for facile and precise control over the surface wettability, ranging from superhydrophobic (contact angle about 157°) to superhydrophilic (contact angle less than 10°) with a short response time. The rate of wetting transition and the desired contact angle can be precisely controlled by modulating the magnitude and duration of the applied potential. The wettability alteration is completely reversible when the sample is dried at ambient or heat‐dried at 100 °C. The heat‐drying does not impact the surface composition when compared to the samples dried at room temperature. The surface contains a mixture of CuO and Cu2O as revealed by the surface composition analysis. The mechanism underlying the wetting alteration is based on the Faradaic phase transformation at the surface. An integrated droplet manipulation system is also demonstrated. The single‐step and additive‐free sample preparation is scalable and can be used to design smart surfaces and devices that require control over the wettability (e.g., liquid lenses, microfluidic devices, sensitive particulate matter handling systems, controlled filtration, and biomedical applications).

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Section: Methodsmentioning

confidence: 99%

Active Control over the Wettability from Superhydrophobic to Superhydrophilic by Electrochemically Altering the Oxidation State in a Low Voltage Range

Sow

Kung

Mérida

2017

Adv Materials Inter

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“…The low final hydrogen storage capacity of Mg10NieTiF 3 in Fig. 5(a) indicates that the hypothesis for TiF 3 to promote the heterogeneous nucleation rate of MgH 2 is reasonable [33,54]. Fig.…”

Section: Activation and Absorption Kineticsmentioning

confidence: 93%

“…The particle morphologies and size distributions of modified nanocrystalline Mg10Ni have been characterized by SEM and estimated by counting 150 particles in images with the same magnification [27,28] and the results are shown in Fig. 3.…”

Section: Morphology and Size Distribution Of Catalyzed Mg-10wt%nimentioning

confidence: 99%

Hydrogenation thermodynamics of melt-spun magnesium rich Mg–Ni nanocrystalline alloys with the addition of multiwalled carbon nanotubes and TiF3

Hou

Zhang

et al. 2016

Journal of Power Sources

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“…Metallic thin films have been extensively used in the past to study hydrogen storage properties [19][20][21][22][23][24][25] and also more directly for their application as switchable mirrors [26][27][28] and optical sensors [29,30]. The advantages of the deposited thin-film model systems over ball-milled powders are the reproducibility of the sample preparation and the ability to closely control the thickness and configuration.…”

Section: Introductionmentioning

confidence: 99%

Reactions in a multilayered Si (substrate)/Ta/Mg/Fe/Ta/Pd thin-film structure during annealing and deuterium absorption

et al. 2015

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A TEM based study of the microstructure during room temperature and low temperature hydrogen storage cycling in MgH2 promoted by Nb–V

Cited by 50 publications

References 69 publications

Active Control over the Wettability from Superhydrophobic to Superhydrophilic by Electrochemically Altering the Oxidation State in a Low Voltage Range

Active Control over the Wettability from Superhydrophobic to Superhydrophilic by Electrochemically Altering the Oxidation State in a Low Voltage Range

Hydrogenation thermodynamics of melt-spun magnesium rich Mg–Ni nanocrystalline alloys with the addition of multiwalled carbon nanotubes and TiF3

Reactions in a multilayered Si (substrate)/Ta/Mg/Fe/Ta/Pd thin-film structure during annealing and deuterium absorption

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