Anode catalyst compositions for a voltage reversal tolerant fuel cell
    8.
    发明申请
    Anode catalyst compositions for a voltage reversal tolerant fuel cell 审中-公开
    用于耐电压逆转燃料电池的阳极催化剂组合物

    公开(公告)号:US20070037042A1

    公开(公告)日:2007-02-15

    申请号:US11504222

    申请日:2006-08-14

    摘要: In a solid polymer fuel cell series, various circumstances can result in a fuel cell being driven into voltage reversal. For instance, cell voltage reversal can occur if that cell receives an inadequate supply of fuel. In order to pass current, reactions other than fuel oxidation can take place at the fuel cell anode, including water electrolysis and oxidation of anode components. The latter can result in significant degradation of the anode, particularly if the anode employs a carbon black supported catalyst. Such fuel cells can be made substantially more tolerant to cell reversal by using certain anodes employing both a higher catalyst loading or coverage on a corrosion-resistant support and by incorporating, in addition to the typical electrocatalyst for promoting fuel oxidation, certain unsupported catalyst compositions to promote the water electrolysis reaction.

    摘要翻译: 在固体聚合物燃料电池系列中,各种情况可导致燃料电池被驱动进入电压反转。 例如,如果该电池接收到不足的燃料供应,则可能发生电池电压反转。 为了通过电流,燃料氧化以外的反应可以在燃料电池阳极发生,包括水电解和阳极组分的氧化。 后者可导致阳极的显着降解,特别是如果阳极采用负载炭黑的催化剂。 这样的燃料电池可以通过使用在耐腐蚀载体上使用较高催化剂负载量或覆盖率的某些阳极,并且除了用于促进燃料氧化的典型电催化剂之外,还将某些未负载的催化剂组合物掺入到 促进水电解反应。

    QUANTUM DOTS WITH MULTIPLE INSULATOR COATINGS
    9.
    发明申请
    QUANTUM DOTS WITH MULTIPLE INSULATOR COATINGS 有权
    量子点与多个绝缘涂层

    公开(公告)号:US20160268483A1

    公开(公告)日:2016-09-15

    申请号:US15064491

    申请日:2016-03-08

    IPC分类号: H01L33/50 H01L33/56

    摘要: Fabricating a semiconductor structure including forming a nanocrystalline core from a first semiconductor material, forming a nanocrystalline shell from a second, different, semiconductor material that at least partially surrounds the nanocrystalline core, wherein the nanocrystalline core and the nanocrystalline shell form a quantum dot. Fabrication further involves forming an insulator layer encapsulating the quantum dot to create a coated quantum dot, and forming an additional insulator layer on the coated quantum dot using an Atomic Layer Deposition (ALD) process.

    摘要翻译: 制造半导体结构,包括从第一半导体材料形成纳米晶核,从至少部分地围绕纳米晶核的第二不同的半导体材料形成纳米晶体壳,其中纳米晶核和纳米晶体壳形成量子点。 制造还涉及形成封装量子点的绝缘体层以产生涂覆的量子点,并且使用原子层沉积(ALD)工艺在涂覆的量子点上形成额外的绝缘体层。