Nitrogen-doped hollow mesoporous carbon spheres (HMCS) have been synthesized by using the mesoporous silica sphere as hard template and amino acids as N-doped carbon *** comparison, hollow carbon spheres have been pre...
Nitrogen-doped hollow mesoporous carbon spheres (HMCS) have been synthesized by using the mesoporous silica sphere as hard template and amino acids as N-doped carbon *** comparison, hollow carbon spheres have been prepared by glucose free nitrogen-containing, the N-doped HMCS have been confirmed to enhance the catalytic activity for ORR and the onset potential positively shifted from-0.198V to-0.058V.
The extremely large volume variation and poor electronic conductivity of Si anode materials for lithium ion batteries have seriously hampered their performances and practical applications.1,2 SiOx materials are regard...
The extremely large volume variation and poor electronic conductivity of Si anode materials for lithium ion batteries have seriously hampered their performances and practical applications.1,2 SiOx materials are regarded as ideal alternatives to high-capacity Si anode materials for Li-ion batteries, since the generated Li2O matrix from Li-SiOx reactions can effectively accommodate the large volume swing of Si.
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