Publications by authors named "Chengyuan Ni"
(Si/graphite)@C and (Si/graphite/graphene)@C were synthesized by coating asphalt-cracked carbon on the surface of a Si-based precursor by spray drying, followed by heat treatment at 1000 °C under vacuum for 2h. The impact of graphene on the performance of silicon-carbon composite-based anode materials for lithium-ion batteries (LIBs) was investigated. Transmission electron microscopy (TEM) and selected area electron diffraction (SAED) images of (Si/graphite/graphene)@C showed that the nano-Si and graphene particles were dispersed on the surface of graphite, and thermogravimetric analysis (TGA) curves indicated that the content of silicon in the (Si/graphite/graphene)@C was 18.
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- Researchers created urchin-like Ce(HCOO) nanoclusters using a microwave-assisted method, focusing on optimizing reaction time for better structural and electrochemical properties.
- The best sample, Ce(HCOO)-210 s, exhibited a specific capacitance of 132 F/g due to its well-structured mesoporous design that enhances conductivity and ion transport.
- An asymmetric supercapacitor made from these nanoclusters reached a maximum energy density of 14.78 Wh/kg and maintained 81.3% of its capacitance after 10,000 cycles, indicating strong potential for real-world supercapacitor applications.