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Monodisperse cobalt–boron (Co–B) hollow microspheres were fabricated by a facile and controllable method. In this method, cobalt hydroxide (Co(OH) 2 ) colloids were used as templates, then electroless cobalt plating was carried out on the surface of Co(OH) 2 colloids, finally Co–B hollow microspheres were obtained by adding complexing agent to dissolve the core. The products were characterized...
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