| 초록 |
Utilization of metal-organic frameworks (MOFs) as a precursor (or template) to synthesize metal or metal oxide via thermal treatments has been of great interest for heterogeneous catalysis and electrochemical applications. However, the morphology of produced metal or metal oxide is usually collapsed due to loss of organic moieties during heat treatments. Here, we report a facile method for morphology-preserved transformations of MOFs to metal/metal oxide@carbon (M/MO@C) composites. Catalytic-site specific polymerization occurs on the metal centers of MOFs via a gas-phase polymerization of phenol and formaldehyde (PF). The produced PF@MOF shows the same morphology and crystallinity as the MOF used. Upon careful choice of carbonization process, morphology-preserved M@C or MO@C composites can be synthesized. And their applications as anode materials for lithium ion batteries will be presented. |
