Porous Graphene Materials for Energy Storage and Conversion Applications

Abstract

Porous graphene materials possess a unique structure with interconnected networks, high surface area, and high pore volume. Because of the combination of its remarkable architecture and intrinsic properties, such as high mechanical strength, excellent electrical conductivity, and good thermal stability, porous graphene has attracted tremendous attention in many fields, such as nanocomposites, lithium batteries, supercapacitors, and dye-sensitized solar cells. This chapter reviews synthesis methods, properties, and several key applications of porous graphene materials.

Interaction between functionalized graphene and sulfur compounds in a lithium–sulfur battery – a density functional theory investigation

“… 18,19 Consequently, attempts were made to design cathodes with porous graphene and rGO. 20–23 Chen's group 24 employed a three-dimensional rGO sponge to produce a sulfur nanogranular film-coated composite cathode with a reversible capacity of 1080 mA h g −1 at 0.1C rate and 86.2% capacity retention after 500 cycles at 1.0C rate.…”

Hybrid Graphene Nanocomposites: Thermal Interface Materials and Functional Energy Materials

“…Hybrid graphene nanocomposites are currently used in various applications, as shown in Figure 3. Among these applications are functional energy materials for energy conservation, lithium-ion batteries, supercapacitors, fuel cells, hydrogen storage, systems for conversion solar radiation into steam and systems for producing clean and desalted water during solar heating, as well as many others [6,18,[20][21][22][23]. Technologies and synthesis of graphene components, including graphene plates and flakes, are given in [15,17,19].…”

“…This is the reason for the search for hybrid nanocomposites with a wide range of properties. First of all, in recent years, attention has been paid to hybrid graphene materials [21][22][23].…”

“…Currently, there are various types of hybrid composites and nanocomposites, a description of the technology and properties of which are available in the scientific literature [9,17,[21][22][23][24][25][26][27][28][29][30][31]. At the same time, the class of composites associated with nanocarbon components, namely graphene and its derivatives, has the most interesting and important properties.…”

“…Therefore, it is necessary to study the heat transfer during boiling in various modes (nucleate and bubble growth, transition, and film), as well as critical heat fluxes on superhydrophobic surfaces of graphene nanocomposites. The topic of studying graphene nanocomposites as heat transfer, evaporation, boiling, and condensation surfaces is an important and relative new direction, which should be given great attention in the future [20][21][22][23][24][25][26][27].…”