Electrochemical Hydrogen Storage in Graphene for Fuel Cell Applications

Abstract

In the present era, the demand for fossil fuels is increasing at a very alarming rate newlineand to meet the need for time, it is required to switch to renewable sources of newlineenergy. Hydrogen is reportedly considered as a future fuel as it can store three times newlinemore energy as compared to conventional fuel and emit zero-emission. However, newlineit s safe and efficient storage is quite a challenge. Out of the three modes of storage, newlinethe safest among all is the electrochemical hydrogen storage. The common newlinematerials used for the electrochemical hydrogen storage are reported collectively in newlinethis report. These include complex hydrides, metal nitrides, clathrate hydrates, newlineactivated carbon (aC), capillary arrays, metal hydrides, metal-organic frameworks, newlinedoped polymer, zeolites, doped graphene and graphene. Graphene, a twodimensional (2D) material having sp2 newlinehoneycomb carbon atom with latticestructured, has received the researcher s attention due to its properties and extensive newlineuse in nanoscience technology. The present investigation, therefore, aims to explore newlinegraphene as a potential medium for electrochemical hydrogen storage within a newlinemodified reversible PEM fuel cell named as a proton battery (PB). The outcome of newlinethe research may lead to a proton battery that works on the principle of electrolyser, newlinefuel cell and stores energy in the hydrogen ions form. The major applications of newlinesuch a system could be found in the field of transportation and remote area power newlinesupply. newline newline