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1. 发明授权

US10290385B2 Synthetic diamond materials for electrochemical sensing applications 有权
公开(公告)号：US10290385B2
公开(公告)日：2019-05-14
申请号：US14382464
申请日：2013-03-13
申请人： Element Six Technologies Limited
发明人： Eleni Bitziou , Laura Anne Hutton , Julie Victoria MacPherson , Mark Edward Newton , Patrick Robert Unwin , Nicola Louise Palmer , Timothy Peter Mollart , Joseph Michael Dodson
IPC分类号： H01B1/04 , G01N27/30
摘要： A boron doped synthetic diamond material which has the following characteristics: a solvent window meeting one or both of the following criteria as measured by sweeping a potential of the boron doped synthetic diamond material with respect to a saturated calomel reference electrode in a solution containing only deionized water and 0.1M KNO3 as a supporting electrolyte at pH 6: the solvent window extends over a potential range of at least 4.1 V wherein end points of the potential range for the solvent window are defined when anodic and cathodic current density measured at the boron doped synthetic diamond material reaches 38 mA cm−2; and the solvent window extends over a potential range of at least 3.3 V wherein end points of the potential range for the solvent window are defined when anodic and cathodic current density measured at the boron doped synthetic diamond material reaches 0.4 mA cm−2; a peak-to-peak separation ΔEp (for a macroelectrode) or a quartile potential ΔE3/4_1/4 (for a microelectrode) of no more than 70 mV as measured by sweeping a potential of the boron doped synthetic diamond material at a rate of 100 mV s−1 with respect to a saturated calomel reference electrode in a solution containing only deionized water, 0.1M KNO3 supporting electrolyte, and 1 mM of FcTMA+ or Ru(NH3)63+ at pH 6; and a capacitance of no more than 10 μF cm−2 as measured by sweeping a potential of the boron doped synthetic diamond material with respect to a saturated calomel reference electrode between 70 mV and −70 mV in a solution containing only deionized water and 0.1M KNO3 supporting electrolyte at pH 6, measuring resultant current, subtracting a current value at 0 V when sweeping towards negative potentials from a current value at 0 V when sweeping towards positive potentials, dividing the subtracted current value by 2, and then dividing the result by an area (cm2) of the boron doped synthetic diamond material and by a rate at which the potential is swept (Vs−1) to give a value for capacitance in F cm−2.

2. 发明申请

US20150102266A1 SYNTHETIC DIAMOND MATERIALS FOR ELECTROCHEMICAL SENSING APPLICATIONS 审中-公开
公开(公告)号：US20150102266A1
公开(公告)日：2015-04-16
申请号：US14382464
申请日：2013-03-13
申请人： Element Six Technologies Limited
发明人： Eleni Bitziou , Laura Anne Hutton , Julie Victoria MacPherson , Mark Edward Newton , Patrick Robert Unwin , Nicola Louise Palmer , Timothy Peter Mollart , Joseph Michael Dodson
IPC分类号： H01B1/04 , G01N27/30
CPC分类号： H01B1/04 , G01N27/308
摘要： A boron doped synthetic diamond material which has the following characteristics: a solvent window meeting one or both of the following criteria as measured by sweeping a potential of the boron doped synthetic diamond material with respect to a saturated calomel reference electrode in a solution containing only deionised water and 0.1 M KNO3 as a supporting electrolyte at pH 6: the solvent window extends over a potential range of at least 4.1 V wherein end points of the potential range for the solvent window are defined when anodic and cathodic current density measured at the boron doped synthetic diamond material reaches 38 mA cm−2; and the solvent window extends over a potential range of at least 3.3 V wherein end points of the potential range for the solvent window are defined when anodic and cathodic current density measured at the boron doped synthetic diamond material reaches 0.4 mA cm−2; a peak-to-peak separation ΔEp (for a macroelectrode) or a quartile potential ΔE3/4—1/4 (for a microelectrode) of no more than 70 mV as measured by sweeping a potential of the boron doped synthetic diamond material at a rate of 100 mV s−1 with respect to a saturated calomel reference electrode in a solution containing only deionised water, 0.1 M KNO3 supporting electrolyte, and 1 mM of FcTMA+ or Ru(NH3)63+ at pH 6; and a capacitance of no more than 10 μF cm−2 as measured by sweeping a potential of the boron doped synthetic diamond material with respect to a saturated calomel reference electrode between 70 mV and −70 mV in a solution containing only deionised water and 0.1 M KNO3 supporting electrolyte at pH 6, measuring resultant current, subtracting a current value at 0 V when sweeping towards negative potentials from a current value at 0 V when sweeping towards positive potentials, dividing the subtracted current value by 2, and then dividing the result by an area (cm2) of the boron doped synthetic diamond material and by a rate at which the potential is swept (Vs−1) to give a value for capacitance in F cm−2.

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