CoP nanoparticles enwrapped in N-doped carbon nanotubes for high performance lithium-ion battery anodes

Abstract

CoP is a candidate lithium storage material for its high theoretical capacity. However, large volume variations during the cycling processes haunted its application. In this work, a four-step strategy was developed to synthesize N-doped carbon nanotubes wrapping CoP nanoparticles (CoP@N-CNTs). Integration of nanosized particles and hollow-doped CNTs render the as-prepared CoP@N-CNTs excellent cycling stability with a reversible charge capacity of 648 mA·h·g⁻¹ at 0.2 C after 100 cycles. The present strategy has potential application in the synthesis of phosphide enwrapped in carbon nanotube composites which have potential application in lithium-ion storage and energy conversion.

Keywords

composites / nanostructures / chemical synthesis / electron microscopy / energy storage

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