Electrodeposited highly-ordered manganese oxide nanowire arrays for supercapacitors

Liu, Haifeng; Lu, Bing‐Qiang; Wei, Shuiqiang; Bao, Mi; Wen, Yan-Xuan; Wang, Fan

doi:10.1016/j.solidstatesciences.2012.04.003

Cited by 18 publications

(7 citation statements)

References 18 publications

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“…On the other hand, filling the template membranes is another effective way to achieve highly ordered/periodic MnO 2 nanostructures through anodic electrodeposition. Templates as anodic Al oxide (AAO) [33,37,214,215,228] and polystyrene spheres [218,219] are widely used to synthesize ordered MnO 2 nanowire arrays and macoporous MnO 2 nanostructures, respectively. For anodic electrodeposition of nanoscale MnO 2 on the electrode scaffolds, particular considerations must be paid to achieve uniform MnO 2 deposits all through the thickness of the electrode scaffolds.…”

Section: Anodic Electrodepositionmentioning

confidence: 99%

Materials and fabrication of electrode scaffolds for deposition of MnO2 and their true performance in supercapacitors

Cao

Wang

et al. 2015

Journal of Power Sources

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Section: Anodic Electrodepositionmentioning

confidence: 99%

Materials and fabrication of electrode scaffolds for deposition of MnO2 and their true performance in supercapacitors

Cao

Wang

et al. 2015

Journal of Power Sources

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“…With the recent rise of nanotechnologies, the development of many devices critically depends on the ability to control the synthesis of new nanoobject architectures, for example, nanowires or nanotubes arrays [1,2]. In this context, the directed self-assembly (DSA) fabrication technique seems to be very promising for various applications such as photonics or materials for energy applications and health [3].…”

Section: Introductionmentioning

confidence: 99%

In Situ Investigation of the Early-Stage Growth of Nanoporous Alumina

Gorisse

Dupré

Zelsmann

et al. 2018

Journal of Nanomaterials

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We report the successful use of in situ grazing incidence small-angle X-ray scattering to follow the anodization of aluminum. A dedicated electrochemical cell was designed and developed for this purpose with low X-ray absorption, with the possibility to access all azimuthal angles (360°) and to remotely control the temperature of the electrolyte. Three well-known fabrication techniques of nanoporous alumina, i.e., single, double, and pretextured, were investigated. The differences in the evolution of the scattering images are described and explained. From these measurements, we could determine at which moment the pores start growing even for very short anodization times. Furthermore, we could follow the thickness of the alumina layer as a function of the anodization time by monitoring the period of the Kiessig fringes. This work is aimed at helping to understand the different steps taking place during the anodization of aluminum at the very early stages of nanoporous alumina formation.

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“…These nanostructures offer a very large panel of applications including among others data storage with ferroelectric materials [1], sensors [2] and supercapacitors [3]. More specifically, porous AAO can be used to guide the growth of mono-crystalline nanowires by chemical vapour deposition (CVD).…”

Section: Introductionmentioning

confidence: 99%

Highly organised and dense vertical silicon nanowire arrays grown in porous alumina template on <100> silicon wafers

et al. 2013

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In this work, nanoimprint lithography combined with standard anodization etching is used to make perfectly organised triangular arrays of vertical cylindrical alumina nanopores onto standard <100>−oriented silicon wafers. Both the pore diameter and the period of alumina porous array are well controlled and can be tuned: the periods vary from 80 to 460 nm, and the diameters vary from 15 nm to any required diameter. These porous thin layers are then successfully used as templates for the guided epitaxial growth of organised mono-crystalline silicon nanowire arrays in a chemical vapour deposition chamber. We report the densities of silicon nanowires up to 9 × 109 cm−2 organised in highly regular arrays with excellent diameter distribution. All process steps are demonstrated on surfaces up to 2 × 2 cm2. Specific emphasis was made to select techniques compatible with microelectronic fabrication standards, adaptable to large surface samples and with a reasonable cost. Achievements made in the quality of the porous alumina array, therefore on the silicon nanowire array, widen the number of potential applications for this technology, such as optical detectors or biological sensors.

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Electrodeposited highly-ordered manganese oxide nanowire arrays for supercapacitors

Cited by 18 publications

References 18 publications

Materials and fabrication of electrode scaffolds for deposition of MnO2 and their true performance in supercapacitors

Materials and fabrication of electrode scaffolds for deposition of MnO2 and their true performance in supercapacitors

In Situ Investigation of the Early-Stage Growth of Nanoporous Alumina

Highly organised and dense vertical silicon nanowire arrays grown in porous alumina template on <100> silicon wafers

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