Morphology Control of Two dimensional (2D) Metal–Organic Framework Nanosheets via 1 nm Thick Hexagonal Hydroxide Nanosheets through Variable Reaction Parameters

Abstract Two different shaped Ni‐based metal–organic framework (MOF) nanosheets are prepared from hexagonal nickel hydroxide monolayer nanosheets under the variable reaction conditions. The hexagonal shaped MOF with similar lateral size to Ni(OH)₂ nanosheet is obtained on flat Si substrate but the thickness increased from 1 to 2 nm. Another rectangular MOF nanosheet is obtained when a similar reaction is carried out in a solution in which Ni(OH)₂ is dispersed. The difference in the shape of the Ni‐MOF nanosheets is related to the degree of dissolution of the Ni(OH)₂ nanosheets during the reaction.