Diamond based electrochemical sensors

A diamond and electrochemical technology, applied in the direction of material electrochemical variables, scientific instruments, instruments, etc., can solve the problems of difficult manufacturing and forming of diamond materials, and no multiple sensing is found.

Inactive Publication Date: 2013-12-18
ELEMENT SIX LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] One problem with using diamond in such applications is that diamond material is inherently difficult to fabricate and shape into suitable geometries for advanced electrochemical analysis
However, to date the applicants have not discovered an advanced diamond-based electrochemical sensor capable of simultaneously performing multiple sensing functions, especially configured for harsh environments
Even apparently relatively simple target structures can present significant technical challenges due to the inherent difficulties involved in the process of fabricating and shaping diamond into multi-structural components

Method used

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  • Diamond based electrochemical sensors
  • Diamond based electrochemical sensors
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Embodiment Construction

[0033] Certain embodiments of the present invention provide diamond-based strip electrodes for use as sensors for electrochemical applications. Figures 1 to 4 An example of such a diamond-based strip electrode is shown in .

[0034] The electrode comprises a diamond body 10 and a plurality of boron-doped diamond strip electrodes 12 arranged within the diamond body. For simplicity, three electrodes are shown in the illustrated embodiment, but in practice many more electrodes may be provided for multifunctional applications, as will be discussed later. Furthermore, it is also conceivable to provide only one or two strip electrodes in simpler applications.

[0035] At least a portion of each of the boron-doped diamond strip electrodes 12 are doped with boron to a level suitable to achieve metallic conductivity, the boron-doped diamond electrodes being separated by a non-conductive intrinsic layer 14 of diamond.

[0036] The diamond body 10 includes a front "sensing" surface 16...

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Abstract

A diamond based electrochemical band sensor comprising: a diamond body; and a plurality of boron doped diamond band electrodes disposed within the diamond body, wherein at least a portion of each of the plurality of boron doped diamond band electrodes is doped with boron to a level suitable to achieve metallic conduction, the boron doped diamond electrodes being spaced apart by non-conductive intrinsic layers of diamond, wherein the diamond body comprises a front sensing surface with the plurality of boron doped diamond band electrodes being exposed at said sensing surface and extending in an elongate manner across said surface, and wherein each boron doped diamond electrode has a length / width ratio of at least 10 at the front sensing surface.

Description

technical field [0001] Certain embodiments of the invention relate to diamond-based electrochemical sensors. Certain additional embodiments of the present invention relate to electrochemical cells including diamond-based electrochemical sensors. Certain additional embodiments of the present invention relate to methods of fabricating diamond-based electrochemical sensors. Background technique [0002] Electrochemical sensors are well known. It has also been proposed in the prior art to provide diamond-based electrochemical sensors. Diamond can be doped with boron to form a semiconductor material or an all-metal conductive material for use as an electrode. Diamond is also hard, inert and has a very wide potential window, making it an ideal material for use as a sensing electrode in electrochemical cells, especially where standard metal-based electrochemical sensors would degrade. harsh chemical, physical, and / or thermal environments. In addition, it is known to functional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30G01N33/00
CPCG01N27/308G01N33/0044G01N27/403
Inventor T·P·莫拉特G·A·斯卡斯布鲁克M·E·牛顿J·V·麦克弗森P·R·昂温
Owner ELEMENT SIX LTD
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