Design, fabrication and testing of a catalytic microreactor for hydrogen production
Design, fabrication and testing of a catalytic microreactor for hydrogen production
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DOI：
10.1088/0960-1317/16/9/002
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发表时间：
2006-07
影响因子：
2.3
通讯作者：
Taegyu Kim;Sejin Kwon
中科院分区：
文献类型：
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作者：
Taegyu Kim;Sejin Kwon
通过对光敏玻璃进行各向异性湿法刻蚀，制作了一种用于制氢的催化微反应器，使其成为一种高紧公差、高纵横比的结构。作为一种反应器结构，微通道被用来改善反应器内的传热传质。移动设备的主要燃料来源是甲醇。选择甲醇吸热催化水蒸气重整制取气态氢。采用共沉淀法制备了铜基催化剂，并将其包覆在甲醇水蒸气重整微通道表面。建立了基于MEMS的催化微反应器的整体微细加工工艺。该反应器的体积为1.8 cm~3，包括反应室的体积为0.3 cm~3，可生产氢气含量高达73%的干式重整油。氢气流量为4.16mlmin−1，可为燃料电池提供350Mwe的功率输出。本文的页码已于2006年7月24日更正。更正后的电子版与印刷版完全相同。
A catalytic microreactor for hydrogen production was fabricated by anisotropic wet etching of photosensitive glass, which enables it to be a structure with high tight tolerance and high aspect ratio. As a reactor structure, a microchannel was used for improving heat and mass transfer in the reactor. The primary fuel source is methanol for a mobile device. Endothermic catalytic steam reforming of methanol was chosen for producing gaseous hydrogen. The Cu-based catalyst, Cu/ZnO, was prepared by the co-precipitation method and coated on the surface of the microchannel for methanol steam reforming. An overall microfabrication process was established for a MEMS-based catalytic microreactor. The fabricated reactor has a volume of 1.8 cm3 including the volume of the reaction chamber 0.3 cm3 and produced dry reformate with high hydrogen content, 73%. The hydrogen flow was 4.16 ml min−1, which can generate a power output of 350 mWe for a fuel cell. The page numbers of this article were corrected on 24 July 2006. The corrected electronic version is identical to the print version.