Fig. 1 | Nature Communications

Fig. 1

From: Polymorphic cobalt diselenide as extremely stable electrocatalyst in acidic media via a phase-mixing strategy

Fig. 1

Structural phase transition in c-CoSe2. a Schematic illustration of the defects-mediated structural phase transition from c-CoSe2 to m-CoSe2 through an alkali-heating approach. b Surface/interfacial energy diagram of c-CoSe2 (100), o-CoSe2 (101), and m-CoSe2 (100||101), respectively. Insets in b show the corresponding crystal structures. c ICP-AES results compare the Co and Se leaching from c-CoSe2 at different reaction conditions, revealing that KOH and temperature are critical to drive the structural phase transition.

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