Cross-linked polymers of diethynylbenzene and phenylacetylene as new polymer precursors for high-yield synthesis of high-performance nanoporous activated carbons for supercapacitors, hydrogen storage, and CO₂capture

Hierarchically porous sulfur-containing activated carbon monoliths via ice-templating and one-step pyrolysis

“…When carbon nanofibers or soft-template derived porous carbons are fabricated, the carbon precursors require chemical crosslinking prior to pyrolysis [13,40,41]. The most common precursors for soft-templated carbons include poly(furfuryl alcohol) and resorcinol-or phenyl-formaldehyde.…”

“…However, carbonization of ice-templated structures is challenging. Due to the absence of a rigid template during carbonization, the porous structure may be lost through melting, foaming, decomposition or destructive volumetric shrinkage of the physically-bonded polymer matrix during high temperature treatment [13,40,41]. This problem also exists for porous carbons derived from soft templates and emulsion templates -but may be overcome by chemically crosslinking the carbon precursors prior to carbonization [13,40].…”

“…This problem also exists for porous carbons derived from soft templates and emulsion templates -but may be overcome by chemically crosslinking the carbon precursors prior to carbonization [13,40]. A high degree of crosslinking not only allows retention of the porous morphology on carbonization but also limits thermal M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 4 decomposition of the precursors into volatile, low molecular weight carbonaceous compounds [40].…”

“…Due to the absence of a rigid template during carbonization, the porous structure may be lost through melting, foaming, decomposition or destructive volumetric shrinkage of the physically-bonded polymer matrix during high temperature treatment [13,40,41]. This problem also exists for porous carbons derived from soft templates and emulsion templates -but may be overcome by chemically crosslinking the carbon precursors prior to carbonization [13,40]. A high degree of crosslinking not only allows retention of the porous morphology on carbonization but also limits thermal M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 4 decomposition of the precursors into volatile, low molecular weight carbonaceous compounds [40].…”

Utilizing Waste Thermocol Sheets and Rusted Iron Wires to Fabricate Carbon–Fe3O4 Nanocomposite‐Based Supercapacitors: Turning Wastes into Value‐Added Materials

“…[4,5] Typical ASCs incorporate electrodes fabricated with iron-containing oxides (such as Fe 2 O 3 ,F e 3 O 4 ,Z nFe 2 O 4 ,a nd NiFe 2 O 4 )a se lectrode mate-rials, [6][7][8][9] which show high capacitance and energy density values, butthese metal oxidesusually have poor electrical conductivity anda re hydrophobic in nature. [10] Syntheticc arbon based materials, such as carbon nanotubes (CNTs), [11] graphene oxide, [12] graphene, [13] polymerderived carbons, [14][15][16] and metal-organic framework (MOF)-derived carbon, [17] are most studied as promisinge lectrode materials in SC applications. [10] Syntheticc arbon based materials, such as carbon nanotubes (CNTs), [11] graphene oxide, [12] graphene, [13] polymerderived carbons, [14][15][16] and metal-organic framework (MOF)-derived carbon, [17] are most studied as promisinge lectrode materials in SC applications.…”