Fig. 2

(A) SEM image, (B) histogram for size distribution, (C) energy dispersive X-ray spectroscopy, and (D) atomic force microscopy of CoNiWBO/rGO particles.
(A) SEM image, (B) histogram for size distribution, (C) energy dispersive X-ray spectroscopy, and (D) atomic force microscopy of CoNiWBO/rGO particles.