NITROGEN OXIDE GAS SENSOR BASED ON SULFUR DOPED GRAPHENE AND PREPARATION METHOD THEREFOR

    公开(公告)号:EP3376214A1

    公开(公告)日:2018-09-19

    申请号:EP16863295.8

    申请日:2016-01-06

    CPC classification number: G01N27/125 C23C16/22 G01N27/00 G01N33/0037

    Abstract: The present invention provides a nitrogen oxide gas sensor based on sulfur-doped graphene and a preparation method therefor. The method comprises the following steps: 1) providing graphene and a micro heater platform substrate, and transferring the graphene onto the micro heater platform substrate; 2) putting the micro heater platform substratecovered with the graphene into a chemical vapor deposition reaction furnace; 3) performing gas feeding and exhausting treatment to the reaction furnace by using inert gas; 4) simultaneously feeding inert gas and hydrogen gas into the reaction furnace at a first temperature; 5) feeding inert gas, hydrogen gas and sulfur source gas into the reaction furnace at a second temperature for reaction to perform sulfur doping to the graphene (21); and 6) stopping feeding the sulfur source gas, and performing cooling in a hydrogen gas and insert gas shielding atmosphere. The preparation method provided by the present invention may adopt a wafer level substrate, which can realize wafer level preparation, can achieve the level of batch preparation and can greatly reduce the production cost; and the prepared gas sensor has relatively high sensitivity and selectivity to nitrogen oxide gas molecules.

    MOLECULAR DETECTION APPARATUS, MOLECULAR DETECTION METHOD AND MOLECULAR DETECTOR
    5.
    发明公开
    MOLECULAR DETECTION APPARATUS, MOLECULAR DETECTION METHOD AND MOLECULAR DETECTOR 审中-公开
    分子检测装置,分子检测方法和分子检测器

    公开(公告)号:EP3296731A1

    公开(公告)日:2018-03-21

    申请号:EP17156678.9

    申请日:2017-02-17

    Abstract: A molecular detection apparatus includes: a collection unit collecting detection target gas containing molecules (2) to be detected; a detector (20) including detection cells (201) having an organic probe (22) provided at a sensor unit (21), for example a graphene (26) field-effect transistor, the organic probe capturing the collected molecule to be detected; and a discriminator discriminating the molecule to be detected by a detection signal generated by the molecule being captured by the organic probe. The detection cell has the organic probe containing a phosphonic acid structure or phosphoric acid structure. The organic probe comprises a polycyclic aromatic hydrocarbon group as base portion, a connecting portion and a head portion containing thze phosphonic or phosphoric acid structure.

    Abstract translation: 一种分子检测装置包括:收集单元,收集包含待检测分子(2)的检测目标气体; 包括检测单元(201)的检测器(20),所述检测单元具有设置在传感器单元(21)处的有机探针(22),例如石墨烯(26)场效应晶体管,所述有机探针捕获所收集的待检测分子; 以及鉴别器,其通过由有机探针捕获的分子产生的检测信号来鉴别待检测的分子。 检测池具有含有膦酸结构或磷酸结构的有机探针。 有机探针包含多环芳族烃基作为基础部分,连接部分和含有膦酸或磷酸结构的头部。

    MULTIPLE GAS DETECTION DEVICE
    9.
    发明公开
    MULTIPLE GAS DETECTION DEVICE 有权
    MEHRGASDETEKTIONSVORRICHTUNG

    公开(公告)号:EP3163297A1

    公开(公告)日:2017-05-03

    申请号:EP16188686

    申请日:2016-09-14

    Abstract: The multiple gas detection device 1 comprises: a first cell part provided with a first electrochemical cell 51; a second cell part provided with a second electrochemical cell 52; a third cell part provided with a third electrochemical cell 53; an inlet diffusion controller 15 controlling diffusion of measured gas; and a measured gas chamber 30 into which the measured gas flows through the inlet diffusion controller 15. The first cell part is configured to selectively detect a concentration of NO x or ammonia contained in measured gas in the measured gas chamber 30. The second cell part is configured to discharge oxygen contained in measured gas in the measured gas chamber 30 and convert NO 2 and ammonia contained in measured gas in the measured gas chamber 30 to NO. The third cell part is configured to detect a concentration of NO contained in measured gas in the measured gas chamber 30.

    Abstract translation: 多气体检测装置1包括:设置有第一电化学电池51的第一电池部分; 设有第二电化学电池52的第二电池部分; 设有第三电化学电池53的第三电池部件; 控制测量气体扩散的入口扩散控制器15; 以及被测气体流过入口扩散控制器15的测量气体腔30.该第一单元部分被配置成选择性地检测被测气体腔30中的被测气体中所含的NO x或氨的浓度。第二单元部分 被配置为排出测量气体腔室30中的测量气体中包含的氧,并且将测量气体腔室30中的测量气体中包含的NO 2和氨转换成NO。 第三单元部分构造成检测被测气体腔室30中的被测气体中包含的NO的浓度。

    METHOD, SYSTEM, AND APPARATUS FOR DIAGNOSING AN EXHAUST AFTERTREATMENT COMPONENT
    10.
    发明授权
    METHOD, SYSTEM, AND APPARATUS FOR DIAGNOSING AN EXHAUST AFTERTREATMENT COMPONENT 有权
    VERFAHREN,SYSTEM UND VORRICHTUNG ZUR DIAGNOSE DES ZUSTANDS EINER ABGASNACHBEHANDLUNGSKOMPONENTE

    公开(公告)号:EP2946084B1

    公开(公告)日:2017-05-03

    申请号:EP14715168

    申请日:2014-03-07

    Applicant: CUMMINS IP INC

    Inventor: HALL TONY JAMES

    Abstract: An apparatus includes an engine output module that determines an engine output power parameter for an engine. The apparatus includes an output power threshold module that determines if the engine output power parameter is below an output power threshold. The apparatus includes a NOx module that determines a nitrogen oxide (“NOx”) efficiency of a selective catalytic reduction (“SCR”) system in response to the output power threshold module determining that the determined engine output power parameter is below the output power threshold. The SCR system is in exhaust receiving communication with the engine. The apparatus includes a NOx threshold module that determines if the NOx efficiency is below a NOx efficiency threshold, and a NOx warning module that sends a NOx alarm signal in response to the NOx threshold module determining that the NOx efficiency is below the NOx efficiency threshold.

    Abstract translation: 一种装置包括确定发动机的发动机输出功率参数的发动机输出模块。 该装置包括确定发动机输出功率参数是否低于输出功率阈值的输出功率阈值模块。 该设备包括NOx模块,其响应于输出功率阈值模块确定所确定的发动机输出功率参数低于输出功率阈值而确定选择性催化还原(“SCR”)系统的氮氧化物(“NOx”)效率 。 SCR系统处于与发动机的排气接收通信中。 该装置包括确定NO x效率是否低于NO x效率阈值的NO x阈值模块以及响应于NO x阈值模块确定NO x效率低于NO x效率阈值而发送NO x警报信号的NO x警报模块。

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