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Hydrogen sensing properties of nanocomposite graphene oxide/Co-based metal organic frameworks (Co-MOFs@GO)

机译：纳米复合石墨烯氧化物/ Co为基金机框架的氢感性特性（Co-Mofs @ Go）

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This paper reports on hydrogen sensing based graphene oxide hybrid with Co-based metal organic frameworks (Co-MOFs@GO) prepared by the hydrothermal process. The texture and morphology of the hybrid were characterized by powder x-ray diffraction, scanning electron microscopy and Brunauer-Emmett-Teller analysis. Porous flower like structures assembled from Co-MOFs and GO flakes with sufficient specific surface area are obtained, which are ideal for gas molecules diffusion and interactions. Sensing performance of Co-MOFs@GO were tested and also improved by sputtering platinum (Pt) as a catalyst. The Pt-sputtered Co-MOFs@GO show outstanding hydrogen resistive-sensing with response and recovery times below 12 s at 15 degrees C. Also, they show stable, repeatable and selective responses to the target gas which make it suitable for the development of a high performance hydrogen sensor.
机译：本文报道了采用水热法制备的基于氢气感应的石墨烯氧化物杂交杂交机（Co-Mofs @ Go）。 通过粉末X射线衍射，扫描电子显微镜和Brunauer-Emmett-erker分析表征杂种的质地和形态。 获得从Co-Mofs组装的结构和具有足够的比表面积的薄片的多孔花，其是气体分子扩散和相互作用的理想选择。 通过溅射铂（Pt）作为催化剂来测试Co-Mofs @ Go的感测性能。 PT溅射的CO-MOFS @ GO展示了响应和恢复时间低于12秒的响应和恢复时间的良致电阻和对目标气体的稳定，可重复和选择性的反应，这使其适合于开发 高性能氢传感器。

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