High gain selective metal organic framework preconcentrators
    3.
    发明授权
    High gain selective metal organic framework preconcentrators 有权
    高增益选择性金属有机骨架预收敛剂

    公开(公告)号:US08123834B2

    公开(公告)日:2012-02-28

    申请号:US11539405

    申请日:2006-10-06

    IPC分类号: B01D53/02

    摘要: Novel metal organic framework (MOF) molecules and methods of synthesizing them are described. MOFs are organometallic crystalline structures that have high sorption capacity due to high surface area, tailorable selectivity, an inert nature, and thermal stability at high temperatures. MOFs may be used as sorbents in preconcentrators for analytical devices to provide orders of magnitude of improved sensitivity in analyte detection. MOFs are also useful as sorbents in new compact and portable micropreconcentrator designs such as a modified purge and trap system and a multi-valve microelectromechanical system (MEMS) to achieve high gain in analyte detection. Further, MOFs may be used as coatings for novel microstructure arrays in micropreconcentrators where the microstructures are designed to increase the surface area to volume ratio inside the micropreconcentrator while minimizing the pressure drop across the micropreconcentrator.

    摘要翻译: 描述了新的金属有机骨架(MOF)分子及其合成方法。 MOFs是由于高表面积,可定制选择性,惰性和高温下的热稳定性而具有高吸附能力的有机金属结晶结构。 MOF可用作分析仪器预浓缩器中的吸附剂,以提供分析物检测中提高灵敏度的数量级。 MOFs还可用作新的紧凑型和便携式微型浓缩器设计中的吸附剂,例如改进的吹扫和捕集系统以及实现分析物检测的高增益的多阀微机电系统(MEMS)。 此外,MOFs可以用作微量浓缩器中的新型微结构阵列的涂层,其中微结构被设计成增加微浓缩器内部的表面积与体积比,同时最小化微量浓缩器上的压降。

    Low contaminant formic acid fuel for direct liquid fuel cell
    4.
    发明授权
    Low contaminant formic acid fuel for direct liquid fuel cell 有权
    用于直接液体燃料电池的低污染甲酸燃料

    公开(公告)号:US07618725B2

    公开(公告)日:2009-11-17

    申请号:US11079893

    申请日:2005-03-14

    IPC分类号: H01M8/00 C06B33/00 C10L1/30

    摘要: A low contaminant formic acid fuel is especially suited toward use in a direct organic liquid fuel cell. A fuel of the invention provides high power output that is maintained for a substantial time and the fuel is substantially non-flammable. Specific contaminants and contaminant levels have been identified as being deleterious to the performance of a formic acid fuel in a fuel cell, and embodiments of the invention provide low contaminant fuels that have improved performance compared to known commercial bulk grade and commercial purified grade formic acid fuels. Preferred embodiment fuels (and fuel cells containing such fuels) including low levels of a combination of key contaminants, including acetic acid, methyl formate, and methanol.

    摘要翻译: 低污染性甲酸燃料特别适用于直接有机液体燃料电池。 本发明的燃料提供大功率输出,其保持相当长的时间并且燃料基本上不易燃。 已经确定特定的污染物和污染物水平对燃料电池中甲酸燃料的性能是有害的,并且本发明的实施方案提供了与已知的商业散装级和商业纯化级甲酸燃料相比具有改进性能的低污染燃料 。 优选的实施方案燃料(和含有这种燃料的燃料电池)包括低水平的关键污染物(包括乙酸,甲酸甲酯和甲醇)的组合。

    Bi-direction rapid action electrostatically actuated microvalve
    5.
    发明申请
    Bi-direction rapid action electrostatically actuated microvalve 有权
    双向快速动作静电驱动微型阀

    公开(公告)号:US20080149869A1

    公开(公告)日:2008-06-26

    申请号:US11797197

    申请日:2007-05-01

    IPC分类号: F16K31/02

    摘要: A bi-directional electrostatic microvalve includes a membrane electrode that is controlled by application of voltage to fixed electrodes disposed on either side of the membrane electrode. Dielectric insulating layers separate the electrodes. One of the fixed electrodes defines a microcavity. Microfluidic channels formed into the electrodes provide fluid to the microcavity. A central pad defined in the microcavity places a portion of the second electrode close to the membrane electrode to provide a quick actuation while the microcavity reduces film squeezing pressure of the membrane electrode. In preferred embodiment microvalves, low surface energy and low surface charge trapping coatings, such as fluorocarbon films made from cross-linked carbon di-fluoride monomers or surface monolayers made from fluorocarbon terminated silanol compounds coatings coat the electrode low bulk charge trapping dielectric layers limit charge trapping and other problems and increase device lifetime operation.

    摘要翻译: 双向静电微型阀包括通过向设置在膜电极的两侧的固定电极施加电压来控制的膜电极。 绝缘层将电极分开。 固定电极之一限定微腔。 形成在电极中的微流体通道为微腔提供流体。 限定在微腔中的中心衬垫使第二电极的一部分靠近膜电极,以提供快速致动,同时微腔降低膜电极的膜挤压压力。 在优选的实施方案中,微型阀,低表面能和低表面电荷捕获涂层,例如由交联的碳二氟化物单体制成的碳氟化合物膜或由氟碳封端的硅烷醇化合物涂层制成的表面单层涂覆电极,低体积电荷捕获电介质层限制电荷 捕捉等问题,增加设备的使用寿命。

    Novel Catalyst Mixtures
    7.
    发明申请
    Novel Catalyst Mixtures 有权
    新型催化剂混合物

    公开(公告)号:US20120308903A1

    公开(公告)日:2012-12-06

    申请号:US13174365

    申请日:2011-06-30

    申请人: Richard I. Masel

    发明人: Richard I. Masel

    摘要: Catalysts that include at least one catalytically active element and one helper catalyst can be used to increase the rate or lower the overpotential of chemical reactions. The helper catalyst can simultaneously act as a director molecule, suppressing undesired reactions and thus increasing selectivity toward the desired reaction. These catalysts can be useful for a variety of chemical reactions including, in particular, the electrochemical conversion of CO2 or formic acid. The catalysts can also suppress H2 evolution, permitting electrochemical cell operation at potentials below RHE. Chemical processes and devices using the catalysts are also disclosed, including processes to produce CO, OH−, HCO−, H2CO, (HCO2)−, H2CO2, CH3OH, CH4, C2H4, CH3CH2OH, CH3COO−, CH3COOH, C2H6, O2, H2, (COOH)2, or (COO−)2, and a specific device, namely, a CO2 sensor.

    摘要翻译: 可以使用包含至少一种催化活性元素和一种辅助催化剂的催化剂来提高速率或降低化学反应的超电势。 辅助催化剂可以同时作为导向分子,抑制不期望的反应,从而增加对所需反应的选择性。 这些催化剂可用于各种化学反应,包括特别是CO 2或甲酸的电化学转化。 催化剂还可以抑制H2的逸出,允许电化学电池在低于RHE的电位下运行。 还公开了使用催化剂的化学方法和装置,包括生产CO,OH-,HCO-,H 2 CO,(HCO 2) - ,H 2 CO 2,CH 3 OH,CH 4,C 2 H 4,CH 3 CH 2 OH,CH 3 COO-,CH 3 COOH,C 2 H 6,O 2,H 2 ,(COOH)2或(COO-)2,以及特定装置,即CO 2传感器。

    MOF synthesis method
    8.
    发明授权
    MOF synthesis method 有权
    MOF合成法

    公开(公告)号:US07880026B2

    公开(公告)日:2011-02-01

    申请号:US11785102

    申请日:2007-04-13

    IPC分类号: C07F15/00 C07F3/00 C07F1/00

    摘要: A rapid, simple and versatile metal organic framework molecule (MOF) synthesis method particularly adapted to make non-linear MOFs includes heating MOF precursors, such as a metal or metal oxide and an organic ligand, in a microwave oven for a period sufficient to achieve crystallization. Microwave-assisted MOF synthesis yields high quality MOF crystals in a reaction time ranging from about 5 seconds to about 2.5 minutes, compared to hours and days required in conventional solvothermal and hydrothermal methods. In addition, microwave assisted methods provide MOF materials with uniform crystal size and well-defined shape. Further, microwave synthesis of MOFs allows the size and shape of MOF crystals to be tailored for use in a wide range applications by manipulating reaction conditions. Secondary growth processes may also be employed to grow larger crystals using seeds obtained from microwave-assisted synthesis methods.

    摘要翻译: 特别适用于制造非线性MOF的快速,简单且通用的金属有机骨架分子(MOF)合成方法包括在微波炉中加热MOF前体如金属或金属氧化物和有机配体足够长的时间 结晶。 与常规溶剂热和水热法所需的小时和天数相比,微波辅助MOF合成在约5秒至约2.5分钟的反应时间内产生高质量的MOF晶体。 此外,微波辅助方法提供均匀晶体尺寸和明确形状的MOF材料。 此外,MOF的微波合成允许MOF晶体的尺寸和形状通过操纵反应条件而适用于广泛的应用。 也可以使用二次生长方法来使用从微波辅助合成方法获得的种子来生长更大的晶体。

    Micromachined Gas Chromatography Columns For Fast Separation of Organophosphonate and Organosulfur Compounds and Methods for Deactivating Same
    9.
    发明申请
    Micromachined Gas Chromatography Columns For Fast Separation of Organophosphonate and Organosulfur Compounds and Methods for Deactivating Same 有权
    用于快速分离有机膦酸酯和有机硫化合物的微加工气相色谱柱及其停用方法

    公开(公告)号:US20090211452A1

    公开(公告)日:2009-08-27

    申请号:US12337882

    申请日:2008-12-18

    IPC分类号: B01D53/02 B01J20/00 B01J20/22

    摘要: Improved microcolumns and methods for producing microcolumns particularly suitable for use in gas chromatographs are disclosed. In particular, following deposition of the stationary phase coating, the microcolumns are subjected to a postcoating treatment with a molecule that binds to the active sites in the stationary phase column thereby eliminating or reducing loss of gas chromatograph performance associated with those active sites. The postcoating treatment molecule binds to the same active sites as the analytes of interest.

    摘要翻译: 公开了改进的微柱和用于生产特别适用于气相色谱仪的微柱的方法。 特别地,在静置相涂层沉积之后,微柱用与固定相柱中的活性位点结合的分子进行后涂处理,从而消除或减少与这些活性位点相关的气相色谱性能损失。 后涂层处理分子结合与感兴趣的分析物相同的活性位点。

    Rapid metal organic framework molecule synthesis method
    10.
    发明申请
    Rapid metal organic framework molecule synthesis method 有权
    快速金属有机骨架分子合成方法

    公开(公告)号:US20090131643A1

    公开(公告)日:2009-05-21

    申请号:US11785102

    申请日:2007-04-13

    摘要: A rapid, simple and versatile metal organic framework molecule (MOF) synthesis method particularly adapted to make non-linear MOFs includes heating MOF precursors, such as a metal or metal oxide and an organic ligand, in a microwave oven for a period sufficient to achieve crystallization. Microwave-assisted MOF synthesis yields high quality MOF crystals in a reaction time ranging from about 5 seconds to about 2.5 minutes, compared to hours and days required in conventional solvothermal and hydrothermal methods. In addition, microwave assisted methods provide MOF materials with uniform crystal size and well-defined shape. Further, microwave synthesis of MOFs allows the size and shape of MOF crystals to be tailored for use in a wide range applications by manipulating reaction conditions. Secondary growth processes may also be employed to grow larger crystals using seeds obtained from microwave-assisted synthesis methods.

    摘要翻译: 特别适用于制造非线性MOF的快速,简单且通用的金属有机骨架分子(MOF)合成方法包括在微波炉中加热MOF前体如金属或金属氧化物和有机配体足够长的时间 结晶。 与常规溶剂热和水热法所需的小时和天数相比,微波辅助MOF合成在约5秒至约2.5分钟的反应时间内产生高质量的MOF晶体。 此外,微波辅助方法提供均匀晶体尺寸和明确形状的MOF材料。 此外,MOF的微波合成允许MOF晶体的尺寸和形状通过操纵反应条件而适用于广泛的应用。 也可以使用二次生长方法来使用从微波辅助合成方法获得的种子来生长更大的晶体。