Attached herewith Research Article links that will help you to understand how trapped water inside the RGO sheets helps to enhance the specific capacitance of energy storage material.
01. Article Supercapacitor Electrodes with Remarkable Specific Capacitan...
02. Article Graphene oxide: A promising Nanomaterial for energy and envi...
03. Article Recent Progress in Porous Graphene and Reduced Graphene Oxid...
04. Article One-Step Hydrothermal Synthesis of Graphene Decorated V2O5 N...
Trapping of water is very challanging part of science one must have to understand very carefully before answering the question.Many research works are published without considing the reality of scientific knowledge associted to ialgit.Research must be well documented in this aspect & I believe there may be science that only can answer the question. To my understaning hydropillic materials are prone to water molecules but again Grapahane oxide has the chemistry of hydroxyl groups with or inot one has to proof that scientifcally.