Chongting Ren

Area of research

Inorganic Chemistry · Electronic, Optical and Magnetic Materials

Research interest

Research topics from publications: Hierarchical Porous Integrated Co1−xS/CoFe2O4@rGO Nanoflowers Fabricated via Temperature‐Controlled In Situ Calcining Sulfurization of Multivariate CoFe‐MOF‐74@rGO for High‐Performance Supercapacitor; Tailoring Electronic Structure and Size of Ultrastable Metalated Metal–Organic Frameworks with Enhanced Electroconductivity for High‐Performance Supercapacitors; A Robust TbIII-MOF for Ultrasensitive Detection of Trinitrophenol: Matched Channel Dimensions and Strong Host–Guest Interactions; Synthesis, characterization and Al3+ sensing application of a new chromo-fluorogenic chemosensor; Ultrasensitive Fe3+ luminescence sensing and supercapacitor performances of a triphenylamine-based TbIII-MOF. Representative work: Abstract The precise synthesis of electrode materials that integrate highly redox‐active transition‐metal oxide with conductive transition‐metal sulfide has always been a challenge, due to the extraordinarily robust coordination affinity of sulfur for transition metals. Herein, through controlling the calcined sulfurization temperature to stimulate the activity of oxygen to compete with sulfur, an integrated Co 1− x S/CoFe 2 O 4 @rGO nanoflower is fabricated in the range of 780–830 ° C by employing well‐designed Co 0.8 Fe 0.2 ‐MOF‐74@rGO as precursor. The hierarchical‐pore structure evolved from the bimetallic MOF@rGO provides a suitable electrolyte environment to promote fast Faradaic react Abstract Utilization of metal–organic frameworks (MOFs) as electrodes for energy storage/conversion is challenging because of the low chemical stability and poor electrical conductivity of MOFs in electrolytes. A nanoscale MOF, Co 0.24 Ni 0.76 ‐bpa‐200 , possessing ultrahigh stability with uncommon semiconductor behavior ( σ =4.2×10 −3 S m −1 ) was fabricated. The MOF comprises a robust hydrophobic paddlewheel and an optimized Co/Ni ratio, with consequent control over MOF size and the degree of conjugation of the coligand. A DFT study revealed that appropriate Ni 2+ doping reduces the activation energy of the system, thus providing a higher carrier concentration, and the strongly delocalized

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