Metal Organic Frameworks (MOFs) Cooperated Si Nanorod Arrays Used in Rechargeable Batteries
In this work, a novel class of MOFs, was initially proposed to composite/network with Si nanorod (NR) arrays as anodes for LIBs employing the modified nanosphere lithography (NSL) and inductive coupled plasma (ICP) dry etching followed by a method of solution growth. An enhanced capacity was accomplished in this hybrid material nanocomposite electrode compare with that in the only Si NR anodes. In addition, with the employment of a buffer layer of Ti/TiN to modify the electronic conductivity of the interfaces between Si inner core and outer MOFs, a further enhanced capacity was realized accompanied with the high Coulombic Efficiency (CE).First principles calculations were performed to verify the favorable lithium diffusion in the MOF cooperated Si structure.
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