Fig. 1
From: WS2–WC–WO3 nano-hollow spheres as an efficient and durable catalyst for hydrogen evolution reaction
XRD patterns of the WS2 NFs and WS2/WC/WO3 NH spheres
Fig. 1 | Nano Convergence
From: WS2–WC–WO3 nano-hollow spheres as an efficient and durable catalyst for hydrogen evolution reaction
XRD patterns of the WS2 NFs and WS2/WC/WO3 NH spheres