Cu3(hexaiminotriphenylene)2: An Electrically Conductive 2D Metal-Organic Framework for Chemiresistive Sensing
Cu3(hexaiminotriphenylene)2: An Electrically Conductive 2D Metal-Organic Framework for Chemiresistive Sensing
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DOI：
10.1002/anie.201411854
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发表时间：
2015-03-27
影响因子：
16.6
通讯作者：
Dinca, Mircea
中科院分区：
文献类型：
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作者：
Campbell, Michael G.;Sheberla, Dennis;Dinca, Mircea
迄今为止，金属有机框架（M0 F）作为电子器件中的功能材料的效用受到缺乏显示高导电性的M0 F的限制。在这里，我们报道了一种新的导电二维MOF，Cu-3（HITP）（2）（HITP= 2，3，6，7，10，11-hex-aminotriphenylene），它显示出体积电导率为0.2 S cm（-1）（颗粒，两点探针）的合成。通过Cu-3（HITP）（2）分散体的简单滴铸合成的器件用作可逆化学电阻传感器，能够检测亚ppm水平的氨蒸气。与同构2D MOF Ni-3（HITP）（2）的比较表明，铜位点对于氨感测是关键的，这表明合理的设计/合成可以用于调节导电MOF的功能性质。
The utility of metal-organic frameworks (MOFs) as functional materials in electronic devices has been limited to date by a lack of MOFs that display high electrical conductivity. Here, we report the synthesis of a new electrically conductive 2D MOF, Cu-3(HITP)(2) (HITP= 2,3,6,7,10,11-hex-aiminotriphenylene), which displays a bulk conductivity of 0.2 S cm(-1) (pellet, two-point-probe). Devices synthesized by simple drop casting of Cu-3(HITP)(2) dispersions function as reversible chemiresistive sensors, capable of detecting sub-ppm levels of ammonia vapor. Comparison with the isostructural 2D MOF Ni-3(HITP)(2) shows that the copper sites are critical for ammonia sensing, indicating that rational design/synthesis can be used to tune the functional properties of conductive MOFs.