کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1335123 1500231 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of Co3O4 pseudocapacitor electrodes from nanoscale cobalt–organic frameworks
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Fabrication of Co3O4 pseudocapacitor electrodes from nanoscale cobalt–organic frameworks
چکیده انگلیسی

Two nanoscale metal–organic frameworks (NMOFs), namely Co–Im and Co–Py, have been firstly prepared in poor solvent through a precipitation method. XRD, TGA and EA results show that as-synthesized NMOFs are isostructural with the reported crystal structure of {[Co(H2IDC)2(H2O)2]·2DMF}n and {[Co(H2PDC)(PDC)]·3H2O}n molecules. High temperature calcining of these Co-based NMOFs can result in pseudo-capacitive Co3O4 electrodes. Series of electrochemical measurements indicated that the as-prepared Co3O4 material could deliver a maximum specific capacitance of 233 F g−1, good stability over 1500 cycles with the capacitance retention of 89.8% and low charge-transfer resistance of 1.22 Ω.

Co3O4 nanoparticles are synthesized from annealing Co-based NMOFs and display pesudocapacitance behaviors, which can further be evaluated and confirmed by series of electrochemical measurements.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polyhedron - Volume 109, 18 April 2016, Pages 26–32
نویسندگان
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