Theoretical and Experimental Studies of Molecular Interactions between Engineered Graphene and Phosphate Ions for Graphene-Based Phosphate Sensing.

In contrast, adsorption of HPO 4 2– and PO 4 3– enhanced the electrical conductivities of pure graphene and hydroxylated graphenes by up to 2 orders of magnitude. In particular, an increasing trend can be seen in the electrical conductivities of pure graphene and most of the hydroxyl-functionalized and curved graphenes, with the conductivities increasing as the charge of the adsorbed phosphate species increases.

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