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WS 2 nanotubes were synthesized by sintering amorphous WS 3 at high temperature under flowing hydrogen. High-resolution transmission electron microscopy observation revealed that the as-prepared WS 2 nanotubes have an open end with an inner hollow core of about 4.6 nm. We studied the lithium intercalation behavior of WS 2 nanotubes. The WS 2 nanotubes demonstrated a stable cyclability in a wide voltage range (0.1-3.1 V vs. Li / Li + ) . The nanotubes could provide a new class of electrode materials for lithium-ion batteries.
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Wang et al. (2004) studied this question.
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