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Investigation of HF Treatment Effect on the Structure and Electrical Conductivity of Carbonized Metal–Organic Frameworks

Tuesday, 15 May 2018
Ballroom 6ABC (Washington State Convention Center)
Z. Q. Zhang, B. H. Li, C. H. Lin, and S. Lee (Chung Yuan Christian University)
Metal-organic frameworks (MOFs) containing Fe, Cr, Ni, and Cu were calcined under nitrogen flow. The formation of carbonized MOFs (CMOFs) was monitored by electrical conductivity, powder X-ray diffraction, and Raman spectroscopic techniques. To remove metallic residues in CMOFs, HF treatment was performed. Powder X-ray diffraction analysis showed that only Ni, but not Fe, Cr and Cu, could be completely removed from CMOFs after HF treatment. Raman spectroscopic data indicated that well-stacked graphene layers structures were present only in Fe and Ni-containing CMOFs. The electrical conductivity, powder X-ray diffraction, and Raman data were correlated. The effect of acid treatment on the structure of CMOFs and the performance of CMOFs as electrode materials were evaluated.