Microhole array electrodes based on microporous alumina membranes

Brumlik, Charles J.; Martin, Charles R.; Tokuda, Koichi

doi:10.1021/ac00034a022

Cited by 42 publications

(41 citation statements)

References 28 publications

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“…My research group has been exploring a method, that we call templatesynthesis, for preparing micro and nanomaterials [see, for example, (7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)]. …”

Section: Mamentioning

confidence: 99%

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Nanomaterials: A Membrane-Based Synthetic Approach

Martin

1994

Science

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4,037

2,524

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Materials with nanoscopic dimensions not only have potential technological applications in areas such as device technology and drug delivery but also are of fundamental interest in that the properties of a material can change in this regime of transition between the bulk and molecular scales. In this article, a relatively new method for preparing nanomaterials, membrane-based synthesis, is reviewed. This method entails synthesis of the desired material within the pores of a nanoporous membrane. Because the membranes used contain cylindrical pores of uniform diameter, monodisperse nanocylinders of the desired material, whose dimensions can be carefully controlled, are obtained. This "template" method has been used to prepare polymers, metals, semiconductors, and other materials on a nanoscopic scale.

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Section: Mamentioning

confidence: 99%

“…My groLp is also using the template method to prepare arrays of microscopic and nanoscopic electrodes for fundamental and applied electrochemistry (13, 14,54). This approach has since been adopted by other researchers (55).…”

Section: Template Synthesis Of Conductive Polymersmentioning

confidence: 99%

Nanomaterials: A Membrane-Based Synthetic Approach

Martin

1994

Science

Self Cite

4,037

2,524

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“…This was placed on a smooth Teflon plate, for the Al tape-treated face of a membrane to face on this plate. On top of it, the other Teflon plate with an opening of 0.71 cm 2 , which allowed us to perform electrochemical measurements, was positioned and two Teflon plates were tightened up with screws. Therefore, the rough face of a membrane was always exposed to electrolyte solutions.…”

Section: Methodsmentioning

confidence: 99%

“…Preparations of micro(nano)tubules and fibrils of various metals [1][2][3] and conducting polymers 4,5 has attracted considerable attention due to their potential applications in the area of physics, electronics, and materials science. 6 A wide variety of approaches have been attempted using porous materials as a template such as filter paper, 7 ion exchange membranes, 8 nylon fabrics, 9 zeolite, 10 alumina, 11 and polycarbonate (PC) membranes.…”

Section: Introductionmentioning

confidence: 99%

Deposition of polypyrrole on microporous filtration membranes at air/water interface

Pyo

Cho

2002

J of Applied Polymer Sci

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Microfiltration membranes were utilized as a template for the preparation of polypyrrole films at the air/water interface. Unlike the formation of polypyrrole tubules (or fibrils) when the membranes are soaked in polymerization media, chemical polymerization on the membrane at the interface resulted in the film formation on the membrane surface in contact with polymerization media, without remaining open micropores. Investigations of electrochemical responses with anthraquinone-2-sulfonate and Fe(CN) 6 4Ϫ on fully reduced or oxidized polypyrrole as well as studies of conductivity changes with polypyrrole deposition were carried out to confirm this behavior. Complete coverage of one side of a microfiltration membrane with a polypyrrole layer, remaining micropore walls, and the other side of a membrane intact, could be useful in various applications because it allows further electrochemical treatment/ measurements utilizing these open micropores straightforward.

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“…A diffusional flux of species to a recessed micro-disk array electrodes are known to differ, according to the potential scan rate, recess depth, pore diameter, and spacing between pores [27,[30][31][32]. Two shapes of j-E dependencies might be expected; sigmoidal ones for low rates, a small membrane pore diameter, and a low pore density, and peak shaped ones for higher scan rates, bigger membrane pore diameter, and a higher pore density.…”

Section: Determination Of Diffusion Coefficientsmentioning

confidence: 99%